|Merchant Shipping Cargo Ship Construction and Survey Rules, 1991|
New Delhi, the 29th May, 1991
G.S.R. 377. Whereas a draft of the Merchant Shipping (Cargo Ship Construction and Survey) Rules, 1989 was published as required by section 299B of the Merchant Shipping Act, 1958 (44 of 1958), in the Gazette of India, Part II, Section 3, sub-section
And whereas the copies of the said Gazette were made available to the public on the 9th April 1991;
And whereas no objection or suggestion have been received from the public on the said draft;
Now, therefore, in exercise of the powers conferred by sections 284 and 299B of the said Act and in suppression of the Merchant Shipping (Cargo Ship-Construction and Survey) Rules, 1974, the Central Government hereby makes the following rules, namely; -
RULES PART 1
1. Short title, commencement and application; -(i) These rules may be called the Merchant Shipping (Cargo Ship Construction and Survey) Rules, 1991.
(ii) They shall come into force on the date of their publication in the Official Gazette.
(iii) Save as expressly provided in rule 67, they shall apply to all sea-going cargo ships of 500 tons gross or more, registered in India.
2.Definitions-In these rules, unless the context otherwise requires
(1) "A Class divisions" means the divisions formed by bulkhead and decks and are
(i) constructed of steel or other equivalent material;
(ii)suitably stiffened ;
(iii)so constructed as to be capable of preventing the passage of smoke and flame to the end of the one-hour standard fire test;
(iv)insulated with approved non-combustible materials in a manner that the average temperature of the unexposed side does not rise more than 39.C above the initial temperature, nor does the temperature, at any one point, including any joint, rise more than 180.C above the initial temperature, within the time specified in column
(2) of the Table below in relation to the classes specified in the corresponding entry in column
(1) of the said table
class "A-60" 60 minutes
class "A-30" 30 minutes
class "A-15" 15 minutes
class "A-0" 0 minutes
(2) "accommodation space" means spaces used for public spaces, corridors, lavatories, cabins, offices hospitals, games and hobbies rooms, pantries containing no cooking appliances and similar spaces;
(3)"Act" means the Merchant Shipping Act, 1958 (44 of 1958);
(4)"anniversary date" in relation to a cargo ship, means the date in each year corresponding to the date of expiry of the Cargo Ship safety Construction Certificate or the Cargo Ship Construction Certificate;
(5)"approved" means approved by the Director;
(6)"auxiliary steering gear" means the equipment, not being any part of the main steering gear, necessary to steer a ship in the event of failure of the main general of Shipping unless expressly stated otherwise; steering gear but does not include the tiller, quadrant or components serving the same purpose;
(7)"B class division" means the divisions formed by bulkheads, decks ceilings or lining which
(i) are so constructed as to be capable of preventing by passage of flame at the end of the first half-hour of the standard fire test;
(ii) Have an insulation value so that if the division is exposed to a standard fire test, the average temperature on the unexposed side does not rise more than 139.C above the original temperature, or does the temperature at any one point including any joint, wrist more than 225.C above the original temperature, within the time listed below
class "B-0", 0 minute; and
(iii) Are constructed of non-combustible materials;
(8)"breadth of a ship" means the extreme width of a ship from outside the frame to outside the frame at or below the deepest load line ;
(9)"Bulk Chemical Code" means the Code for construction and equipment of ships carrying dangerous chemicals in bulk adopted by the Assembly of the International Maritime Organisation by resolution A 212(VII);
(10)"Bulkhead deck" means the upper most deck upto which the transverse watertight bulkheads are carried;
(11)"Cargo area" means the part of a ship which contains cargo spaces, slop tanks and cargo pump rooms, cofferdams, ballast and void spaces adjacent to cargo tanks and also deck areas throughout the length and breadth of the part of the sip over such spaces;
(!2)" C class divisions" means the divisions constructed have approved non-combustible materials. They need meet neither requirement relative to the passage of smoke and flame nor limitations relative to the temperature rise. Combustible veneers are permitted provided they meet other requirements of these rules.
(13)"cargo control station" means a space from which the loading, discharging or transferring of any cargo may be controlled;
(14)"cargo pump room" means the room in which pumps used for loading , discharge or transferring oil cargoes are located;
(15)"cargo spaces" means all spaces used for cargo (including cargo oil tanks) and trunks to such spaces;
(16)"certified gas free" means tanks, compartments or containers which had been tested using an approved testing instrument and proved to be sufficiently free, at the time of the test, of oxic or explosive gas for a specified purpose by an authorised person;
(17)" chemical tanker" means a tanker constructed or adopted and used for the carriage in bulk of any liquid product listed in
(i)Chapter 17 of the "International Bulk Chemicals Code or
(18) "closed RO/RO cargo spaces" means RO/RO cargo spaces which are neither open R/RO spaces nor whether deck;
(19)"combination carrier" means a tanker designed to carry oil or solid cargoes in bulk;
(20)"control station" means spaces in which radio or main navigation equipments or the emergency source of power or the central fire recording or fire control equipment or fire extinguishing installations are located or a control room located outside of a propelling machinery space;
(21)"Crew spaces" means accommodation provided exclusively for the use of crew;
(22)"crude oil means oil occurring naturally in the earth whether or not treated to render it suitable for transportation and includes crude oil from which certain distillate fractions may have been removed and to crude oil to which certain distillate fractions may have been made;
(23)"dangerous goods" means those goods referred to in International Maritime Dangerous goods Code, as amended from time to time;
(24)"dead ship condition" means the condition under which the main propulsion and the boilers and auxiliaries are not in operation due to the absence of power;
(25)"dead weight" means the difference in metric tons between the displacement of a ship in water of a specific gravity of 1.025 at the load water line corresponding to the assigned summer free-board and the lightweight of the ship;
(26)"Director General" means the Director General of Shipping;
(27)"emergency condition" means the condition under which any services needed for normal operational and habitable conditions are not in working order due to failure of the main source of electrical power;
(28)"emergency source of electrical power" means the source of electrical power intended to supply the emergency switch board in the event of failure of the supply from the main source of electrical power;
(29)"emergency switch board" means the switch board which in the event of failure of the main electrical power supply system is directly supplied by the emergency source of electrical power or the transitional source of emergency power and is intended to distribute electrical energy to the emergency services;
(30)"flammable" means substances capable of being ignitude and of burning in air;
(31)"forward perpendicular" means the forward point of the stem on the water line on which the length is measured;
(32)"freeboard deck" means the deck from which freeboard is assigned being-
(33)"gas carrier" means a tanker constructed or adapted and used for the carriage in bulk of any liquified gas or other products of flammable nature listed in-
(i)Chapter 19 of the International Gas Carrier Code, or
(34) "Gas Carrier Code" means the code for the construction and equipment of ships carrying liquified gas in bulk adopted by the International Maritime Organization by resolution A328 (IX);
(35)"hazardous area" means an area in which explosive gas-air mixture are, or may be expected to be present in quantities such as to require special precaution for the construction and use of electrical apparatus or other apparatus which otherwise would constitute a source of ignition;
(36)"hazardous zone or space" means
(37)" independent power pump" means a pump operated by power otherwise than the ships main engine;
(38)"International Bulk Chemical Code" means the code for the construction and equipment of ships carrying dangerous chemicals in bulk adopted by the International Maritime Organisation by resolution MSC 4(48);
(39)" International Gas Carrier Code" means the code for the construction and equipment of ships carrying liquified gas in bulk adopted by the International Maritime Organization by resolution MSC 5(48);
(40)"length" means the length on the summer load water line measured between the foreside of the stem and after side of the rudder post or to the centre of the rudder stock if there is no rudder post, or 96 per cent of the summer load water line whichever is the greater;
(41)" light weight" means the displacement of the ship in metric tons without cargo, fuel, lubricating oil, ballast water, fresh water and feed water in tanks, consumable stores, together with passengers and crew and their effects;
(42)"low flame spread" means the surface that adequately restricts the spread of flame having regard to the risk of fire in the space concerned;
(43)"machinery alarm and control centre" means the position from which the propelling and auxiliary machinery can be controlled and where the alarms, other than those located in accommodation spaces and the navigating bridge for the safe operation of such machinery are located;
(44)"machinery control room" means a room from which the propelling machinery and boiler serving the needs of propulsion may be controlled;
(45)" machinery space" means all machinery spaces of category "A" and all other spaces containing propelling machinery, boiler, oil fuel units, steam or internal combustion engines, generators, and major electrical machinery oil filling stations, refrigerating, stabilizing, ventilation and air conditioning machinery and similar spaces and trunks to such spaces;
(46)"machinery spaces of category A" means a machinery space which contains ;
(i) internal combustion type machinery used either for main propulsion purposes, or for any other purposes when such machinery has in the aggregate a total power output of not less than 375 kilowatts, or
(47)"main circulating pump" means the pump installed for circulating water through the main condenser or coolers;
(48)"main generating station" means the space in which the main source of electrical power is situated;
(49)"main source of electrical power" means a source intended to supply electrical power to the main switch board for distribution to all services necessary for maintaining the ship in normal operational and habitable conditions;
(50)"main steering gear" means the machinery, rudder actuators, steering gear power units, if any, and ancillary equipment and the means of applying torque to the rudder for the purpose of steering the ship under normal service conditions;
(51)"main switch board" means the switch board which is directly supplied by the main source of electrical power and is intended to distribute electrical energy to the ships service;
(52)"pleasure craft" means a vessel primarily greatest speed which the ship is designed to maintain in service at seat at the deepest sea-going draught;
(53)"maximum astern speed" means the speed which it is estimated the ship can attain at the design maximum astern power at the deepest sea-going draught;
(54)"maximum service speed" means the greatest speed the ship is designed to maintain at sea at her deepest seagoing draught;
(55)"motor ship" means a ship propelled by internal combustion engine;
(56)"navigable speed" means the minimum speed at which the ship can be effectively steered in the ahead direction;
(57)"noise level" means a weighted sound pressure level in decibels;
(58)"non-combustible material" means material which neither burns nor gives off flammable vapors in sufficient quantity for self-ignition when heated to approximately 750.C this being determined by an established test procedure to the satisfaction of the Director General of Shipping.
(59)" normal operational and habitable condition" means a condition under which the ship as a whole, the machinery, services, means and aids ensuring propulsion, ability to steer, safe navigation, fire an flooding safety, internal and external communications and signals, means of escape, and emergency boat winches as well as he designed comfortable conditions of habitability are in working order and functioning normally;
(60)"oil fuel unit" means the equipment used for the operation of oil fuel for delivery to an oil fired boiler, or equipment used for the preparation for delivery of heated oil to internal combustion engines, and includes any oil at a pressure pumps, filters and heaters, dealing with oil at pressure of more than 1.8 kilograms/em;
(61)"open RO/RO cargo spaces" means RO/RO cargo spaces either open at both ends or open at one end and provided with adequate natural ventilation effective over their entire length through permanent openings in the side plating or open deck;
(62)"maximum ahead service speed" means the used for sport and recreation;
(63"power actuating system" means hydraulic equipment provided for supplying power to turn the rudderstock comprising a steering gear unit or units together with the associated pipes and fittings and a rudder actuator. The power actuating system may share common mechanical components serving the same purpose;
(64)"principal office" means an officer referred to in sub-section (2) of section 8 of the Act;
(65)"public spaces" are those portions of the accommodation spaces which are used for halls, dining rooms, lounges and similar permanently enclosed spaces;
(66)"Reid vapour pressure" means the vapour pressure of a liquid as determined by laboratory testing in a standard manner in the Reid apparatus;
(67)"RO/RO cargo spaces" means spaces not normally sub-divided in anyway and extending to either a substantial length or the entire length of the ship in which goods (package or in bulk) in or on rail or road cars, vehicles (including road and rail tankers, trailers, containers, pallets dismountable tanks or in or on similar stowage units or other receptacles) can be loaded and unloaded normally in a horizontal direction;
(68)"Schedule" means the Schedule annexed to these rules;
(69)" Service Spaces" means those spaces used for galleys, pantries containing cooking appliances, lockers, main and specie room, store room, workshops other than those forming part of the machinery spaces and similar spaces and trunks to such spaces;
(70)"settling tank" means an oil storage tank having a heating surface of not less than 0.183 m/tone of oil capacity.
(71)"special category spaces" means those enclosed spares above or below the bulkhead deck intended for the carriage of motor vehicles with fuel in their tanks for their own propulsion into and from which such vehicles can be driven and to which passengers have access;
(72)"standard fire test" means a test in which specimens of the relevant bulkheads or decks are exposed in a test furnace to temperature curve. The specimen shall have an exposed surface of not less than 4.65 sq. meter, and height (or length of deck) of 2.44meters resembling closely as possible the intended construction and including where appropriate at least one joint. The standard time curve is defined by as a smooth curve drawn through the following temperature points measures above the initial furnace temperature
at the end of 5 minutes 556.C
at the end if 10 minutes 659.C
at the end of 15 minutes 718.C
at the end of 30 minutes 821.C
at the end of 60minutes 925.C;nd
(73)"steel or other equivalent material" means any material which by it self or due to insulation provided has structural and integrity properties equivalent to steel at the end of the applicable fire exposure to the standard fire test;
(74)"steering gear control system" means the equipment by which orders are transmitted from the navigating bridge to the steering gear power units, steering gear control system comprise transmitters, receivers, hydraulic control pumps and their associated motors, motor controllers, piping and cables;
(75)"steering gear power unit" means,-
(i) in the cause of electrical steering gear, the electric motor and its associated equipment;
(76)" surveyor" means a person appointed or authorised in this behalf by the Central Government under Section 9 of the Act;
(77)" tanker" means cargo ship constructed or adapted for the carriage in bulk of liquid cargoes of flammable nature and except where the context otherwise required includes a gas carrier and chemical tanker;
(78)"ton" means gross ton;
(79)"upper deck" means the upper most complete deck exposed to the sea and weather fitted as an integral part of the ship structure, being a deck opening in the weather portions of which are fitted with permanent means of closing and below which all openings in the sides of the ship are fitted with permanent means of watertight closing;
(80)"watertight", in relation to a structure, means a structure which is capable of preventing the passage of water through it in any direction under a head of water upped the freeboard deck,
(81)"weather deck" means the deck which is completely exposed to the weather from above and from atleast two sides;
(82)"weather tight", in relation to a structure means a structure which is capable of preventing the passage of sea water through it in ordinary sea conditions;
3.Classification of cargo ships-
(1) For the purpose of these rules Indian cargo ships shall be arranged in the following classes, namely ;-
(a) Class I; Indian Cargo ships engaged on international voyages.
The provisions of this Part, except Chapter 3, and Part III applies to all cargo ships of Class I and Class II and the provisions of Chapter 3 applies to cargo ships Class I and Class II having periodically unattended machinery spaces.
The structural strength of every cargo ship and number and disposition of transverse watertight bulkheads shall be adequate for the service for which the ship is intended and shall be in accordance with the provisions of rule 53.
(1) Every ship shall be fitted with a collision bulkhead, which shall be watertight upto, the freeboard deck. This bulkhead shall be located at a distance from the forward perpendicular of not less than 5 percent of the length of such ship or 10 meters, whichever is less.
(2) Where any part of the cargo ship below the waterline extends forward of the forward perpendicular, Such as a bulbous bow, the distances stipulated in sub-rule (1) shall be measured from a position
(a)at the mid length of such extension ; or
whichever is the after-most position.
(3) The collision bulkhead may have steps or recesses in it where such steps or recesses are within the limits specified in sub-rules (1) and (2). Pipes piercing such bulkhead shall be fitted with valves operable from above the freeboard deck and the valve chest shall be secured at the bulkhead inside the forepeak. The valves may be fitted on the after side of the collision bulkhead where such valves are readily accessible under all service conditions and the space in which they are located is not a cargo space. All valves shall be made of steel., bronze or other approved ductile material. No door, manhole, ventilation dust or any other opening shall be fitted in such bulkhead.
(4) In every cargo ship provided with a long forward superstructure the collision bulkhead shall be extended weathertight to the deck immediately above the freeboard deck. The extension shall subject to the requirements of sub-rule (5), be located within the limits specified in sub-rules (1) and (2). The part of the deck, if any, between the collision bulkhead and its extension shall be watertight.
(5)In every cargo ship provided with a bow door and a sloping loading ramp forming part of the extension of collision bulkhead above the freeboard deck, shall be watertight and the part of the ramp which is more than 2.3 meters above the freeboard deck may extend forward of the limits specified in sub-rules (1) and (2).
(6)The number of openings in the extension of the collision bulkhead above the freeboard deck shall be capable of being closed watertight and shall be restricted to the minimum compatible with the design and normal operation of the ship.
7.Construction and testing of watertight bulkheads, decks and inner bottoms
(1) In every cargo ship-
(a)each transverse and longitudinal watertight subdivision bulkhead shall be constructed in such a manner that it shall be capable of supporting, with a margin of resistance, the pressure due to the minimum head of water which it might have to sustain in the event of damage to the ship. The head of water shall be at least that due to a head of water up to the freeboard deck.
the greater, so however that the test head shall in no case be less than 0.9 meter above the top of the tank.
(2) The tests specified in clauses (d), (e) and (f) if sub-rule (1) shall also be applicable to boundaries of any tank which is constructed integral with the ship structure and which is used for the storage of liquids
Provided that the head of water specified shall be the highest of the following,
(a)head of water upto freeboard deck;
8.Construction and testing of watertight decks, trunks, tunnels, duet keels and ventilators--
(1) In every cargo ship the watertight decks, trunks, tunnels, duck keels and ventilators shall be of the same strength as the watertight bulkheads at corresponding levels. The means used for making them watertight and the arrangements adopted for closing openings in them shall be to the satisfaction of the Chief Surveyor to the Government of India. Watertight ventilators and trunks of such ship shall be watertight at least up to the freeboard deck.
(2) In every cargo ship, the watertight decks, trunks tunnels and ventilators shall be subjected to a hose or flooding test after completion.
(1) In every cargo ship in which watertight doors are provided to maintain the watertight integrity of a bulkhead or deck, every such door shall be made of suitable material and shall be efficiently constructed for its intended duty.
(3)Where there is access from the lower part of a machinery space to a watertight shaft tunnel the access opening shall be provided with a sliding watertight door which shall be capable of being operated from both sides of the door.
(4)Means shall be provided at remote operating positions to indicate when a sliding door is closed.
(5)Watertight doors shall be capable of being operated when the ship is listed upto 15 degrees either way.
10. Tests of watertight doors--
Watertight doors in every cargo ship shall be tested by water pressure equivalent to the head up to the freeboard deck.
11.Ballast and bilge pumping and drainage arrangements--
(1) Every cargo ship shall be provided with efficient bilge pumping plant and means for drainage so arranged that water entering any part of the hull, upto the bulkhead deck, other than a space permanently appropriated for the carriage of fresh water, water ballast, oil fuel or liquid cargo and for which other efficient means of pumping or drainage are provided, can be pumped out through at least one section pipe when the ship is on an even keel or is listed not more than 5 degrees either way. Wing suctions shall be provided whereby water may easily flow to the suction pipes; provided that the Director General may allow the means of pumping or drainage to be dispensed within particular compartments of any ship, if he is satisfied that the safety of the ship is not thereby impaired. Efficient means shall be provided for draining water from insulated holds.
(2) At least two power pumps connected to the main bilge system shall be provided, one of which may be driven by the propulsion machinery. Sanitary, ballast and general service pumps may be accepted as power bilge pumps if provided with the necessary connections to the bilge pumping system.
(3) All bilge pipes used in or under coal bunkers or fuel storage tanks or in machinery spaces shall be of steel or other suitable material.
(4)The bilge and ballast pumping systems shall be so arranged as to prevent water passing from the sea or from water ballast spaces into the cargo spaces or into the machinery spaces or from one watertight compartment to another. Provision shall be made to prevent any deep tank having bilge and ballast connections being inadvertently flooded from the sea when it contains cargo or being discharged through a bilge pipe when it contains water ballast.
(5)The distribution boxes and manually operated valves provided in connection with the bilge pumping arrangements shall be clearly marked for identification and shall be in positions which are accessible under ordinary circumstances.
(6)Provision shall be made for the drainage of enclosed cargo spaces situated on the bulkhead deck of any ship ; provided that the Director General may permit the means of drainage to be dispensed with in any particular compartments of any ship, if he is satisfied that, by reasons of the size or internal sub-division of those spaces, the safety of the ship is not thereby in paired. Where the freeboard to the bulkhead deck is such that the deck edge is not immersed when the ship heels 5 degrees either way, the required drainage shall be by means of a suitable number and size of deck scuppers discharging directly overboard fitted in accordance with Merchant Shipping (Load Line) rules 1979. In all other cases, internal drainage shall be led to a suitable space or spaces of adequate capacity having a high water-level alarm and provided with a suitable arrangements for discharge overboard.
(7)The scuppers of cargo spaces intended for the carriage of motor vehicles with fuel in their tanks for their own propulsion shall not be led to machinery or other spaces where sources of ignition may be present.
(8)The bilge pumping arrangements for cargo spaces intended to contain flammable or toxic liquids shall be designed so that inadequate pumping of such liquids through the main bilge system or any other system connected to a pump located in a machinery space can be prevented. Additional means of draining considers their provided if the Director General considers their provision necessary taking into consideration the quantity and characteristics of the liquid and their location.
(1) In every cargo ship, the machinery, boilers and other pressure vessels, and associated piping systems and fittings shall be of a design and construction adequate for the service for which they are intended and shall be so installed and protected as to reduce to a minimum any danger to persons on board, due regard being paid to moving parts, hot surfaces and other hazards. The design shall have regard to the materials used in construction, the purpose for which the equipment is intended, and the working conditions to which it will be subjected to and the environmental conditions on board.
(2) Where the arrangements of the main propulsion machinery are unconventional the Director General may require that a separate source of propulsion power shall be provided sufficient to give the ship a navigable speed.
(3)Provision shall be made whereby the normal operation of propulsion machinery can be sustained or restored when there is a breakdown of ,-
(a)the generating set which serves as a main source of electrical Power,
Provided that the Chief Surveyor with the Government of India may for the purpose of this sub rule, if satisfied that it is safe so to do, permit a partial reduction in propulsion capability from normal operation.
(a)the design and the material of which they are constructed.
Provided that the Chief Surveyor with the Government of India may permit a reduction in the angles specified in the sub rule taking into considerations the type, size and service conditions of the ship.
(1) In every cargo ship, the propulsion machinery systems shall be designed constructed and installed so that undue stress due to vibration is not induced during normal operation.
(2) All gearing and every shaft and coupling used for transmission of power essential for the propulsion and safety of the ship or for the safety of persons on board shall be so designed and constructed that they will withstand the maximum working stresses to which they will be subjected to in all service conditions taking into account the type of engines by which they are driven or of which they form part.
(3) Every internal combustion engine having a cylinder diameter of 200 millimeters or more or a crankcase volume of 0.6 cubic meters or more shall be provided with crankcase explosion relief values of a suitable type having sufficient area to relieve values of a suitable type hang sufficient area to relieve abnormal pressure in the crankcase. The explosion relief values shall be arranged or provided with means to ensure that any discharge from them is so directed as to minimize the possibility of injury to personnel.
(4)(1) Every main propulsion turbine and, where applicable, main internal combustion propulsion machinery and auxiliary machinery shall be provided with automatic shut-off arrangements that will operate in the case of failures, such as a lubricating oil supply failure, which could leas rapidly to complete breakdown, serious damage or explosion ;
Provided that the Chief Surveyor with the Government of India may if satisfied that other arrangements provided in the ship is sufficient having regard to the size and type of the machinery, permit fuel arrangements in place of arrangements specified in this sub-rule.
14. Means of manoeuvring and going astern--
(1) Every cargo ship shall have sufficient power for going astem to secure proper control of the ship in all circumstances. The ability of the propelling machinery to reverse the direction of thrust of the propeller in sufficient time, so as to bring the ship to rest from maximum ahead service speed and the effectiveness of any supplementary means of stopping or maneuvering the ship shall be demonstrated and recorded.
(2) Every ship with multiple propellers shall undergo trials to determine the ability of the ship to maneuver with one propeller inoperative.
(3) The trial records under sub-rule (1) & (2) shall be available on board the ship.
15. Boilers and other pressure vessels --
(1) In every cargo ship every boiler or other pressure vessel and its respective mounting shall, before being put into service for the first time, be subjected to a hydraulic test to pressure in excess of the working pressure which will ensure that the boiler or other pressure vessels and its mountings are adequate in strength and design for the service for which it is intended and having regard to:
(a)the design and the material of which it is constructed.
and every such boiler or other pressure vessel and its respective mountings shall be maintained in an efficient condition.
(2) The means shall be provided which will prevent overpressure in any part of boilers and other pressure vessels, and in particular every boiler and every unfired steam generator shall be provided with not less than two safety valves ;
Provided that the Director General may permit, only one safety valve to be fitted, if he is satisfied, having regard to the output or any other feature of any boiler or unfired steam generator, that adequate protection against overpressure is provided.
(3) Every unattended oil fired boiler shall be provided with arrangements to shut off the fuel supply and give an alarm at an attended location in the event of low boiler water level, combustion air supply failure or flame failure.
(4)Every boiler designed to contain water at a specific level shall be provided with at least two means for indicating the water level, at least one of which shall be a direct reading gauge glass.
(5)Every water tube boiler serving turbine machinery shall be fitted with a higher water level alarm.
(6)The means shall be provided to test and control the quality of the water in boiler.
16. Boiler feed systems--
(1) Every boiler which provides services essential for the safety of the ship and which could be rendered dangerous by the failure of its feed water supply shall be provided with not less than two efficient and separate feed water systems so arranged that either of such systems may be opened for inspection or overhaul without affecting the efficiency of the other. The means shall be provided which will prevent overpressure in any part of the systems.
(2) If in any ship it is possible for oil to enter the feed water system of a boiler, the arrangements for supplying boiler feed water shall provide for the interception of oil in the feed water.
(3)Every feed check valve, fitting, or pipe through which feed water passes from a pump to such boilers shall be designed and constructed so as to withstand the maximum working stresses to which it may be subjected, with a factor of safety which is adequate having regard to the material of which it is constructed and the working conditions under which it will be used. Every such valve, fitting, or pipe shall, before being put into service for the first time be subjected to a hydraulic test in excess of the maximum working pressure of the boiler to which it is connected or of the maximum working pressure to which the feed line may be subjected, whichever is more and shall be maintained in an efficient condition. The feed pipes shall be adequately supported.
(4)The means shall be provided to test and control the quality of the feed water to boilers.
17. Steam pipe systems--
(1) In every steam pipe and every fitting connected thereto through which steam may pass shall be adequately supported and be so designed and constructed as to withstand the maximum working stresses to which it may be subjected, with a factor of safety which is adequate having regard to :-
(a)the material of which it is constructed and
(b)the working conditions under which it will be used.
(2) Without prejudice to the generality of the foregoing, every steam pipe or fitting shall, before being put into service for the first time, be subjected to a test by hydraulic pressure to a pressure in excess of working pressure to be determined having regard to the requirements of clauses (a) and (b) of sub-rule (1) and every such steam pipe or fitting shall be maintained in an efficient condition.
(3)Provisions shall be made which will avoid excessive stress likely to lead to the failure of any such steam pipe or fitting, whether by reason of variation in temperature, vibration or otherwise.
(4)Efficient means shall be provided for draining every such steam pipe so as to ensure that the interior of the pipe is kept free of water and that water hammer action will not occur under any condition likely to arise in the courses of the intended service of the ship
(5)If a steam pipe is expected to receive steam from any source at a higher pressure than it can otherwise withstand with an adequate factor of safety, and efficient reducing valve, relief valve and pressure gauge shall be fitted to such pipe.
18. Air pressure systems--
(1) In every cargo ship in which machinery essential for the propulsion and safety of the ship or of persons on board is required to be started, operated or controlled solely by compressed air, there shall be provided an efficient air system which shall include a sufficient number of air compressors and compressed air storage vessels to ensure that an adequate supply of compressed air available under all conditions likely to be met in service.
(2) (a) The parts of every such air system which are subjected to air pressure shall be designed and constructed to withstand, with an adequate factor of safety, the maximum working stresses to which they may be subjected, and every air pressure pipe or fitting be subjected, and every other than a pneumatic control system, shall, before being put into service for the first time, be subjected to a hydraulic tent in excess of the maximum working pressure to which it may be subjected and be maintained in an efficient condition.
(i)to reduce to a minimum entry of oil into any such air system and to drain the system ;
(d)All discharge pipes from starting air compressors shall lead directly to the starting air receivers, and all starting air pipes from the air receivers to main or auxiliary engines shall be entirely separate from the compressor discharge pipe system.
19. Cooling water systems--
In every ship in which cooling water services are essential for the running of the propelling machinery their shall be at least two means of operating such water services.
20. Oil and gaseous fuel installations--
(1) In every ship oil fuel provided for use in boilers or machinery shall have a flash point of not less than 60.C (closed cup test);
(a)any ship to use oil having a flash point of not less than 55.C in violers, or oil fuel having a flesh point if not less than 43 degree C in internal combustion type machinery where the ambient temperature of the machinery space in which such fuel oil is stored or used is at least 10.C below the flash point of the fuel oil.
(b)the use of fuel oil with a flash point of less than 43.C provided that it is not stored in any machinery space.
(c)the use of gaseous fuel in ships designed for the carriage of liquefied gas if such fuel results solely from evaporation of the cargo carried.
Explanation Nothing in this sub-rule shall apply to fuel provided for use in a generator provided in accordance with sub-rule (4) of rule 42.
Provided that the Chief Surveyor with the Government of India may, if he is satisfied that it is impracticable to meet the requirements of the clause, having regard to the construction of the ship, may dispense with compliance with the requirement of this clause.
(c)where it becomes necessary to locate oil fuel tanks, not being double bottom tanks, adjacent to or within machinery spaces of Category "A" , at least one of their vertical sides shall be contiguous to the machinery space boundaries and shall have a boundary common with the double bottom tanks. The area of the tank boundaries common with the machinery space Category "A" shall be kept at a minimum. Any fuel oil tank located within the boundaries of machinery spaces of Category "A" shall not contain fuel having flash point of less than 60.C;
Provided that if the Director General is satisfied, having regard to structure of the ship that it is not practicable to meet the requirements of this clause, the Director General may permit any other arrangements ;
(e)oil fuel tanks shall not be situated directly above boilers or other heated surfaces ;
(f)oil fuel shall not be carried in forepeak tanks;
(g)provision for the removal of the water from fuel oil including the fitting of water drain valves to daily service tanks, settling tanks and, where practicable, to other oil fuel tanks shall be made and where the removal of water by drain valves is not practicable water separators shall be fitted in the supply lines to propulsion machinery ;
(h)save-alls or gutters and screens shall be provided to prevent oil fuel that may leak under pressure from any pump, filter or heater from coming into contact with boilers or other heated surfaces ;
(i)every pipe connected to any oil fuel storage, setting, or daily service tank, not being a double bottom tank, which if damaged may result in discharge of the contents shall be secured to the tank to which it is connected and be capable of being closed from a readily accessible position outside the space in which the tank is situated :
Provided that in the case of any inlet pipe to such a tank, a non-return valve similarly secured to the tank may be provided;
(k) provision for ascertaining the amount of oil fuel contained in any oil fuel tanks shall be made. Sounding pipes shall not terminate in any space where the risk of ignition of spillage therefrom could arise. In particular, sounding pipes shall not terminate in passenger spaces or crew spaces ;
(l) Provision for preventing overpressure in any oil fuel tank, oil fuel filling pipe or any part of the oil fuel filling pipe or any part of the oil fuel system shall be made. Air and overflow pipes and relief valves shall discharge to a position where there will be no risk of fire or explosion from the emergence of oil or oil vapour ;
(m) every oil fuel pipe shall be made of steel or other suitable material except that flexible pipes may be permitted in positions where the Chief Surveyor with the Government of India is satisfied that they are necessary, such flexible pipes and their attachments shall be constructed to the satisfaction of the Chief Surveyor with the Government of India ;
(n)In every ship in which oil or gaseous fuel is used in engines or boilers for the propulsion or safety of the ship, the arrangements for the storage, distribution and utilisation of the fuel shall be such that the effective use of the engines can be maintained under all conditions likely to be met by the ship in service ;
(o)every oil fuel installation which serves a boiler supplying steam for the propulsion of the ship shall include not less than two oil fuel units.
21. Lubricating and other oil systems-
(1) In every ship in which oil for lubrication, cooling or operation of the main propelling machinery an dits ancillary services is circulated under pressure, provision shall be made so that in the event of the failure of a pump an alternative means of circulating such oil is available.
(2) The arrangements for the storage, distribution and utilization of lubricating oil in machinery spaces of Category "A" shall comply with the requirements of clause (a), (e), (h), (I) , (k), (l) and (m) of sub rule (2) of rule 20 as they apply to oil fuel installations except that tank gauges of the flat glass type, provided with self closing valves at each tank connection and slight flow glasses having an acceptable degree of fire resistance may be permitted.
(3)In machinery spaces other than machinery spaces of Category "A" where the Chief Surveyor with the Government of India is satisfied that the safety of the ship is not impaired, may permit such alternative arrangements as he considers adequate.
(4)The arrangements of the storage, distribution and utilisation of flammable oils, other than fuel and lubricating oil, transmission control and activating systems and heating systems shall be such as to ensure the safety of the ship and person on board.
(5)In enclosed space containing a source of ignition the arrangement shall comply with clauses (e), (h), (k) (l) and (m) of sub-rule (2) of rule 20 as they apply to oil fuel installations except that tank gauges of the flat glass type provided either self closing valves at each tank connection may be permitted.
(6)Lubricating oil and other flammable oil shall not be carried in force peak tanks.
22. Machinery controls-
(1) In every ship provision for the operation and control of main and auxiliary essential for the propulsion and safety of the ship shall be made.
(2) In every ship with remote control of that propulsion machinery from the navigating bridge the following provision shall apply ;-
(a)the speed, direction of thrust and, if variable, the pitch of the propeller shall be fully controllable from the navigating bridge under any sailing condition including manoeuvering.
(b)the remote control from the navigating bridge shall be performed by a single control device for each independent propeller, each such device shall be provided with means of preventing overload of the propulsion machinery except multiple propeller installations which may be controlled by a single control device.
(c)propulsion machinery movements selected at the navigating bridge shall be indicated in the main machinery control room or at the maneuvering platform .
(d)the main propulsion machinery shall be provided with an emergency stopping device, located on the navigating bridge, which shall be independent of the controls otherwise required under this rule.
(e)remote control of the propulsion machinery shall be possible from only one location at a time. Inter-connected control units may be permitted at such locations. There shall be provided at each location an indicator showing which location is in control of the propulsion machinery. Transfer of control between the navigating bridge and the machinery spaces shall only be possible from the machinery space or the main machinery control room. The control system shall be arranged so that the propeller trust does not alter significantly when control is transferred from one station to another.
(f)provision shall be made for the control of the propulsion machinery locally in the event of failure of remote control system.
(g)the design of the propulsion machinery remote control system shall be such that in the event of its failure, it is capable of giving an alarm and the speed and direction of thrust maintained until local control is in operation;
Provided that the Chief Surveyor with the Government of India may waive requirement of this clause where he is satisfied that other essential features of the system design render compliance with the requirement of this clause impracticable, subject to such alternative provision as he may require.
(ii) propeller speed and pitch position in the case of controllable pitch propellers.
(j) an alarm shall be provided on the navigating bridge and in the machinery space to indicate low starting air pressure at a level which permits main propulsion machinery starting operations.
(4) Any automatic starting, operating or control system shall be so designed that the failure of any part of such systems shall not prevent their operation manually.
23. Steering Gear-
(1) Every ship shall be provided with main steering gear and, subject to sub-rule (7) auxiliary steering gear, which shall be so arranged that the failure of one will not render the other in operative.
(2) (a) The steering gear components and the rudder stock shall be designed and constructed to withstand with an adequate factor of safety, the maximum working stresses to which they may be subjected. Any bearings for such essential components shall be permanently lubricated or provided with lubrication fitting.
(b)The design pressure for steering gear components and piping subject to internal hydraulic pressure shall be at least 1.25 times the maximum working pressure anticipated when the steering gear is operating taking into account any pressure which may be existing in the low pressure side of the system. Fatigue criteria, taking into account pulsating pressure due to dynamic loads, shall be taken into account for the design of piping and components if the Chief Surveyor with the Government of India considers it appropriate.
(c)Relief valves shall be fitted to any part of the hydraulic system which can be isolated and in which pressure can be generated from a power unit or from external forces. The pressure at which relief valves operate shall not exceed the design pressure. The valve shall be of adequate size so as to avoid an undue rise in pressure above the design pressure.
(3)The main steering gear and rudder stock shall-
(a)be of strength sufficient to steer the ship at maximum ahead service speed.
(b)be capable of putting the rudder over from 35 degrees on one side to 35 degrees on the other side with the ship running ahead at maximum service speed and, under the same conditions, from 35 degrees on either side to 30 degrees on the other side is not more than 28 seconds.
(c)be operated by power if necessary to meet the requirements of clause (b) and in any case when the diameter of the rudder stock in way of the tiller is required to be greater than 120 millimeters excluding additional strengthening for navigation in ice, and
(d)be designed so that they will not be damaged at maximum astern speed.
(4)The auxiliary steering gear shall
(a)be of strength capable of being brought speedily into action in an emergency.
(5)Main and auxiliary steering gear power units shall
(a)be arranged to restart automatically when power is restored after a power failure,
(6)An auxiliary steering gear need not be provided in a ship if
(a)two or more identical steering gear power units are fitted which when operating simultaneously are capable of operating the rudder in accordance with the requirements of clause (b) of sub-rule (3) , and
(7)(a) The control of the main steering gear shall be provided on the navigating bridge and in the steering great compartment. Two independent control systems operable from the navigating bridge shall be provided for a steering gear arranged in accordance with sub-rule (6).
(8)Every main and auxiliary steering gear control system shall,-
(9)The electric power circuits and the steering gear control system with the associated components, cables and pipes required under this rule and rule 24 shall be separated as far as is practicable throughout their length.
(10)A means of communication shall be provided between the navigating bridge and the steering gear compartment.
(11)The angular position of the rudder shall be indicated in the steering gear compartment and, if the main steering gear is power operated, at the steering station on the navigating bridge. The rudder angle indicator system shall be independent of any steering gear control system.
(12)Hydraulic power operated steering gear shall be provided with :-
(a) arrangements to maintain the cleanliness of the hydraulic fluid, taking into considerations the type of the hydraulic system.
(13)The steering gear compartment shall be readily accessible and , as far as is practicable, separated from the machinery spaces, Handrails and gratings or other non-slip surfaces shall be provided to ensure suitable working conditions at the steering gear machinery and controls in the event of hydraulic fluid leakage.
(14)Simple operating instructions with a block diagram showing the change over procedures for remote steering gear control systems and steering gear power units shall, where applicable be permanently displayed on the navigating bridge and in the steering gear compartment.
(15)An alternative power supply shall be provided in every ship where the diameter of the rudder stock is required to be 230 millimeters or more excluding any strengthening for navigating in ice. The alternative power supply shall be capable of being provided automatically within 45 seconds either from the emergency source of power located in the steering gear compartment. The independent source of power shall be at least sufficient to provide power for the steering gear in accordance with the requirements of clause (b) of sub-rule (4) and for its associated control system and rudder angle indicator . The alternative power supply shall have a capacity sufficient for at least 30 minutes of continuos operation in every ship of 10,000 tons and above and at least 10 mites of continuous operation in any other ship.
(16)In every tanker of 10,000 tons and above and every other ship of 70,000 tons and above the main steering gear shall have two or more identical power units complying with the requirements of clause (a) of sub-rule (6).
(17)The main steering gear in every tanker of 10,000 tons and above shall, subject to the requirements of sub-rule (18) and
(a)two independent and separate power actuating systems each capable of meeting the requirements of clause of meeting the requirements of clause (b) of sub-rule (3) or
(b)at least two identical power actuating systems which shall be capable of meeting the requirements of clause (b) of sub-rule (3) when acting simultaneously in normal operation. Interconnection of the hydraulic power actuating system shall be provided, if necessary, for compliance with this requirement.The loss of hydraulic fluid from one system shall be capable of being detected and the defective system automatically isolated so that the other actuating system or systems remain fully operational.
(18)In any tanker of 10,000 tons and above but of less than 1,00,000 tones deadweight the main steering gear may be constructed in such a way that the single failure criterion required by sub-rule(17) is not applied to the rudder actuator or actuators;
(a)steering capability shall be regained with in 45 seconds of a single failure of any part of the piping system or in one of the power units, and
24. Electric and electro-hydraulic steering gear--
(1) Every ship which is fitted with electric or electrohydraulic steering gear shall be provided with indicators which will show when the power units of such steering gear are running. These indicators shall be situated in the machinery control room or in such other positions as the Chief Surveyor with the Government of India may approve and on the navigating bridge.
(2)Every such steering gear shall, subject to sub-rule (3)-
A. (i) be served by at least two exclusive circuits fed from the main switchboard one of which may pass through the emergency switchboard and each circuit shall the motors which are normally connected to it and which operate simultaneously;
(iv) an auxiliary electric or electro hydraulic steering gear may be connected to one of the circuits supplying the main steering gear and
B. (i) be provided with short circuit protection and overload alarm for the protection of the circuits and motor and any protection provided against excess current shall be capable of conducting at least twice the full load current of the motors taking into consideration the motor starting currents;
(3)The main steering gear in any ship of less than 1600 tons may be fed by one circuit from the main switchboard if the auxiliary steering gear is not electrically powered or is powered by an electric motor primarily intended for other purposes. The Chief surveyor with the Government of India may permit arrangements for such motors other than required under clause (b) of sub-rule (2) and clauses (a) and (b) of sub-rule (6) of rule 23 if considered it safe to do so.
25. Ventilating systems in machinery spaces--
(1) Machinery spaces of categoryA in every ship shall be ventilated so that an adequate supply of air is maintained for the safety and well-being of personnel and the operation of machinery, including boilers, at full power in all weather conditions.
(2) Any other machinery space shall be adequately ventilated having regarded in particular to the prevention of an accumulation of oil vapour under all normal conditions.
26. Protection against noise--
(1) In every ship, provision shall be made to reduce noise levels in machinery spaces as far as is practicable.
(2) On completion of a ship, noise levels in machinery spaces shall be measured in accordance with Second Schedule.
(3)Noise levels in machinery spaces shall not exceed 110 dB(A) provided that the Director General may under such conditions as he may specify, permit higher noise levels having regard to the size of the ship and the type of machinery installed.
(4)Any machinery space in which the nose level exceeds 90 dB(A) and which is required to be manned shall be provide with a designated refuge from noise.
(5)Every entrance to a machinery space in which the noise level exceeds 85 dB(A) shall be provided with a warning notice, stating "High Noise Levels" Use Ear Protectors" and sufficient number of car protectors shall be provided for use in such spaces.
27. Communication between navigating bridge and machinery space--
Every ship shall be provided with, two independent means for communicating from the navigating bridge to the position in the machinery space or machinery control room. One of the means shall be an engine room telegraph. Means of communication shall also be provided to any other position from which the main engines may be controlled.
28. Engineers alarm--
Every ship shall be provided with an engineers alarm which shall be clearly audible in the engineers accommodation when operated from a position in the machinery space or machinery control room.
Every ship shall be provided with sufficient spare having regard to the intended service of the ship.
Special Requirements for Periodically Unattended Machinery Spaces
Every cargo ship of class I and II having periodically unattended machinery spaces shall be provided with effective means for control of and arrangements for, monitoring the operation of the machinery used or essential for propulsion, so that the safety of the ship in all sailing conditions, including manoeuvering is not less than that of a ship with continuously manned machinery spaces.
31. Operation and documentation-
(1) Measure shall be taken to the satisfaction of the Principal Officer of the concerned port to ensure that the equipment provided to operate the machinery of such ship is functioning in a effective manner and that satisfactory arrangements are made for regular inspections and tests to ensure continuous reliable operation.
(2) Every ship shall be provided by a Surveyor with a documentary evidence to the satisfaction of the Chief Surveyor with the Government of India of its fitness to operate with periodically unattended machinery spaces.
32. Alarm System-
Every such ship shall be provided with an alarm system which shall indicate any fault in the unattended machinery spaces requiring attention. The alarm system shall.
(a)indicate each separate alarm condition visually at the machinery alarm and control centre and provide an audible alarm at such center and in the machinery spaces.
33. Safety system. -
(1) A safety system shall be provided in any such ship so that malfunction in the machinery which presents an immediate danger machinery except the main propulsion machinery and give an alarm. The main propulsion machinery shall be automatically shut down when continued operation is likely to cause serious damage, complete breakdown or an explosion.
(2) Arrangements for overriding the automatic shut down of the main propulsion machinery may be permitted. Provided that the operating arrangements preclude inadvertent operation. Visual indication shall be provided to show whether or not warning of the possible effect of overriding shall be displayed at the override position.
Every such shall be provided with a means of vocal communication between the propelling engine room, main machinery control room or manoeuvering platform, or as the case may be, the navigating bridge and the engineers accommodation space.
35. Control of propulsion machinery
In every such ship the speed of rotation, direction of thrust and, where applicable, the pitch of the propeller shall be fully controllable from the navigating bridge and the following provisions shall apply: -
(a)the remote control from the navigating bridge shall be performed by a single control device for each independent propeller with automatic performance of all associated services including where necessary, means of preventing overload of the propulsion machinery;
(b)propulsion machinery movements selected at the navigating bridge shall be indicated at the machinery alarm and control centre;
(c)provision for controlling the propulsion machinery and other machinery essential for the propulsion of the ship locally shall be made in the event of failure of any part of automatic or remote control systems.
36. Machinery, boilers and electrical installations-
(1)An automatic control system and an alarm system shall be provided in such a ship which shall be such that through such systems the services needed for the operation of the main propulsion machinery and its auxiliaries are ensured.
(2)In every such ship, where the electrical power is normally supplied by one generator, there shall be provided suitable load shedding arrangements to ensure the integrity of supplies to services required for propulsion, steering and safety of the ship. There shall be provision, in the event of breakdown of the generator in operation, for automatically starting and connecting to the main switchboard a stand by generator of sufficient capacity to sustain propulsion, steering and steering and automatic restarting of the essential auxiliaries.
(3)Where stand-by machinery is necessary to ensure continuity of services essential for population, automatic change over devices shall be provided with an alarm indicating the automatic change over.
37. Fire safety
(1) In every such ship every fuel oil and lubricating oil pressure pipe shall be screened or otherwise suitably protected to prevent oil coming into contact with hot surfaces or entering machinery air intakes in the event of a failure of that pipe. In addition high pressure fuel oil pipes of compression ignition engines shall, be provided with means of collecting any such oil at a safe location, indicating simultaneously the fault on the alarm system.
(2) Every oil fuel that directly supplies oil to the main propulsion machinery or its auxiliary automatically or by remote control shall contain provision for prevention of overflow and spillage of such oil. Every such tank and settling tank fitted with oil fuel heating arrangements shall be provided with a high temperature alarm if the flash point of the oil fuel therein can be exceeded.
(3) The equipment such as oil fuel purifiers for preparing flammable liquids for use in boilers or machinery shall have arrangements to prevent overflow and spillage and be installed in a space appropriated solely for such equipment and their heaters.
(4)All internal combustion engines having an output of 2250 kilowatts or above or having cylinders of 300 millimeters bore or above shall be provided with crankcase oil mist detectors or engine bearing temperature detectors or other detectors which shall be capable of giving an alarm on the alarm system in the event of an incipient dangerous condition.
(5)All air supply casings and uptakes of boilers able of giving an alarm on the alarm system in the be provided with detectors capable of giving an alarm on the alarm system in the event of incipient fire occurring therein.
38.Protection against flooding.-
(1) The machinery space bilge wells-
(a)shall be so located that an accumulation of liquid at normal angels of heel and trim may detected;
(2) Ships with automatic bilge pumping shall be provided with an indicator indicating when the bilge pump is operating more frequently than during normal operation.
(1) In every ship the electrical installation shall be such that
(a)all electrical auxiliary services necessary for maintaining the ship in normal operational and habitable conditions are ensured without recourse to the emergency source of electrical power, and
40.Main source of electrical power and main switchboard-
(1) A main source of electrical power of sufficient capacity to supply all the services required under clause (a) and (b) of sub-rule (1) of rule 39-
(a)shall consist of at least two generating sets; and
(b)the remaining sets are capable of providing the electrical services necessary to start the main propulsion plant from a dead ship condition.
(4)Load shedding or other equivalent arrangements shall be provided to protect the generators required by sub-rule (1) against sustained overload.
(5)Any transforming equipment supplying an electrical system referred to in this shall be arranged to ensure the same continuity of supply as that required for generating sets by this rule.
(6)The main switchboard shall be located in the same space as the main generating sets in any ship with only one generating station. Where there is more than one generating station and only one main switchboard, that switchboard shall be located in the same space as one of the generating stations. The Chief Surveyor with the Government on India may permit other arrangements where other essential features of the ship render the application of this requirement impracticable subject to such alternative provisions as he may require.
Explanation- For the purpose of this sub-rule an environmental enclosure for the main switchboard, such as a machinery control room within the main boundary of the space, does not provide separation between the generating sets and switchboard.
(7)The main busbars shall be subdivided in every ship in which the total installed electrical power of the main generating sets exceeds 3 megawatts. Each section of the busbars shall be interconnected by removable links or other suitable means such that the main generating sets and any supplies to duplicated services which are directly connected to the busbars are, as far as practicable, equally divided between the sections.
(1) The main source of electrical power in every ship shall be capable of illuminating any part of the ship normally accessible to and used by the passengers or the crew.
(2) The emergency electric lighting shall be arranged in a manner that a fire or other causalty in spaces continuing the emergency source of electrical power, the associated transformers, in any, the emergency switchboard and the emergency lighting switchboard will not render inoperative the main source of electric power as required under sub-rule (1).
(3) Lighting fittings shall be arranged as to prevent rise in temperature resulting injury to the fittings or the electric wiring or risk of fire.
42.Emergency and transitional source of electrical power and emergency switchboards-
(1) Every ship shall be provided with a self contained emergency source of electrical power which shall be so designed and arranged that it will operate at full rated power when the ship is listed 22.5 degrees and when the trim of the ship is 10 degrees from an even keel or any combination of or up to these limits.
(2) The emergency source of electric power, the associated transforming equipment, any transitional source of emergency power required under clause (b) of sub-rule (4), the emergency switchboard and the emergency lighting switchboard shall be
(a)located above the uppermost continuous deck.
(3) The emergency source of electrical power shall be a generating set complying with the requirements of sub-rule (4) or an accumulator battery complying with the requirements of sub-rule (7).
(4) Where the emergency source of electrical power is a generator, it shall-
(a)be driven by internal combustion machinery with an independent fuel supply having a flash point of not less than 43.C (Closed Cup Test), and
(6)The emergency generator may be used to supply services other than emergency supplies in expectional cases for short periods if the independent operation of the emergency source of electrical power is safe-guarded in all circumstances.
(7) Where the emergency source of electrical power is an accumulator battery, it shall
(10)(a) the emergency switchboard shall be situated as near as practicable to the emergency source of electrical power;
(b) if the emergency source of electrical power is a generator, the emergency switchboard shall be situated in the same space as the generator unless the operation of the emergency switchboard would be thereby impaired.
(11) The emergency switchboard shall be supplied power during normal operation from the main switchboard by an interconnect feeder which shall be
(13) Provisions shall be made for testing the complete emergency system periodically including any automatic starting arrangements.
43.Starting arrangements for emergency generating sets-
(1) Emergency generating sets shall be capable of being readily started at a temperature of 0.C and if the temperature below 0.C are anticipated provision shall be made for hearing the engine so that it starts readily.
(2) The starting, charging and energy storing devices, which shall not be used for any purpose other than the operation of the emergency generating set, shall be located in the emergency generator space except that the air receiver of the emergency generator set may be supplied from the main or auxiliary compressed air system through a non-return valve located in the emergency generator space.
(3) The stored energy required from staring shall be maintained at all times-
(a)in electrical and Electro-hydraulic systems, from the emergency switchboard and
(b)in compressed air system, by the main or auxiliary air compressor which , if it is electrically driven shall be supplied from the emergency switch board.
(4) Any emergency generating set arranged to be automatically started shall-
(a)be equipped with a starting system having sufficient stored energy for six consecutive starts, and
(b)be provided with an additional source of stored energy independent of the starting system required under clause (a) capable of producing a futher six starts within 30 minutes, unless an alternative and independent starting system is provided or effective manual starting can be demonstrated.
(5) Any emergency generator that is not arranges for automatic starting shall-
(a)be provided with starting arrangements in accordance with the requirements of sub-rule (4) except that the starting may be initiated manually, or
(b)be started manually by cranking inertia starters or manually charged hydraulic accumulators so that at least six starts can be accumulated within 30 minutes.
44. Emergency supplies -
(1) The Emergency source of electric power required under sub-rule (1) of rule 42 shall be capable of simultaneously supplying the following services, including any starting currents and for the following periods:-
(a) for a period of 3 hours the emergency lighting required under the Merchant Shipping (Life-Saving Appliances) rules, 1990.
(b) for a period of 18 hours, emergency lighting :-
(i) in all service an accommodations alleyways, stairways , exits, lifts and lifts shafts.
(c) for a period of 18 hours, unless they have an equivalent independent supply from a suitably located accumulator battery:-
(i) the general alarm;
(d) for the period of 18 hours;
(i) the navigation lights, and
(e) for the time require under sub-rule (15) of rule 23.
(2) The Director General may permit a reduction of the periods of time specified in clauses (b), (c) and (d) of sub rule (1) to not less than 12 hours in any ship plying regularly on voyages of short duration.
45. Location and constructed of cables
(1) All electric cables external to electrical equipment shall be so installed that the flame retardant and shall be so installed that their flame retarding or equivalent properties are not impaired :
(2) (a)Electric cables shall be installed and supported in such a manner as to avoid chafing and other damage.
(3)(a) Electric cables serving emergency services shall not, so far as is practicable, be routed through galleys, laundries, machinery spaces of CategoryA and their casing or other high fire risk areas except in so far as it is necessary to provide emergency services in such areas.
(4)Electric cables serving emergency services shall, where practicable, be installed in such a manner as to preclude them being rendered unserviceable by the effect of a fire in an adjacent space and subsequent heating of the dividing bulkhead.
(5)The electrical, mechanical, flame retarding and where applicable, fire resisting properties of the terminations and joints in any conductor shall be at least equivalent to those of the conductor.
46. General precautions against shock, fire and other hazards.-
(1) In every ship all electrical equipment shall be so constructed and installed that there is no danger of injury to any person handling it in a proper manner. Exposed metal parts of electrical equipment which are not intended to have a voltage above that of earth but which may have such a voltage under fault conditions shall be earthen unless such equipment is :-
(a)supplied at a voltage not exceeding 55 volts direct-current or 55 volts root mean square alternating current to as "RMS a.c.", from a source other than an auto-transformer, or
(2) All electrical apparatus shall be constructed and installed in manner that it is not likely to cause injury when handled or touched in the normal manner . When electric lamps, welding equipment, tools or other apparatus are used in confined or damp spaces or spaces with large exposed conductive surface, special provision shall be made, so far as practicable, to ensure that the danger of electric shock is reduced to a minimum. Such spaces shall at least include open decks and machinery spaces.
(3) Every main and emergency switchboard shall be so arranged as to give access as may be necessary for operation and sufficient access for maintenance without danger to any person. Every such switchboard shall be suitably guarded and non-conducting mat or grating shall be provided at the back and front of such switchboard. No exposed parts which may have a voltage between conductors or to earth exceeding 250 volts direct current or 55 volts R.M.S. a.c. shall be installed on the fact of any switchboard or control panel.
(4) The hull return system of distribution shall not be used for any purpose other than the use of :-
(a)impressed current cathodic protection system.
(5) Earthen distribution systems shall not be installed in any tanker, chemical tanker or gas carrier.
Provided that the natural of an alternating current distribution system with a line voltage of 3000 volts and above may be earthed if any current their from does not flow directly through and hazardous areas.
(6)The insulation of any distribution system which is not earthed shall be continuously monitored by a system capable of giving audible and visual indication of low insulation values..
(7)Every separate electrical circuit shall be protected against short circuit.
(8)Each separate electrical circuit other than a circuit which operates the ships steering gear or any other circuit in respect of which the Director General of Shipping grants an exemption, shall be protected against overload. There shall be clearly and permanently indicated on or near each overload protective device that current carrying capacity of the circuit which it protects and the rating of setting of the device.
(9)All lighting and power circuits terminating in a bunker or cargo space shall be provided with multiple pole switches outside the space for disconnecting all such circuits.
(10)Accumulator batteries shall be housed in boxes or compartments constructed to protect the batteries from damage and ventilated to minimize the accumulation of explosive gas.
(11)Subject to sub-rule (1) of rule 47, electrical or other equipment which may constitute a source of ignition of flammable vapours shall not be installed in any compartment assigned to accumulator batteries.
(12)Accumulator batteries shall not be installed in sleeping rooms.
47. Electrical equipment in hazardous area and spaces-
(1) Electrical equipment shall not be installed in any hazardous are unless area unless the Chief Surveyor with the Government of India is satisfied that such equipment is
(a)essential for operational or safety purposes.
(a)be appropriate for use in the dusts, gases or vapours to which they may be subject, and
(a) The electrical equipment installed in enclosed cargo spaces intended for the carriage of motor vehicles with fuel in their tanks for their propulsion and in any ventilation trunk for such spaces shall be of a type that is approved for use in explosive petrol and air mixtures.
(4)The electrical cables installed in enclosed cargo spaces intended for the carriage of motor vehicles with fuel in their tanks for their propulsion and in any ventilation trunks to such spaces shall be of a type approved for use in explosive petrol and air mixtures.
(a) Electrical equipment and cable shall not be installed in enclosed cargo spaces or open vehicle deck spaces intended for the carriage of packaged dangerous goods, or the carriage of solid dangerous goods in bulk, unless the Director General of Shipping considers their installation therein essential, and permits such installation.
Provided that the Director General of Shipping may permit the isolation of electrical equipment and cables which do not comply with the foregoing provisions for particular applications if he is satisfied that such equipments and cables are capable of being electrically isolated by the removal of links or the operation of lockable switches.
48. Anchors, anchor handling equipment and chancels.-
Every ship shall be provided with such anchors, anchor handling equipment and chain cables as are sufficient in number, strength and, in the case of anchors and cables, weight having regard to the size and intended service of the ship.
49. Means of escape. -
(1) In every ship stairways and ladderways shall be so arranged as to provide ready means of escape to the lifeboat embarkation deck from all accommodation spaces, service spaces and other spaces in which they crew are normally employed, which shall comply with the following
(a)at all levels of accommodation spaces, there shall be provided at least two widely reported means of escape from each restricted space or group of spaces;
Explanation: - A dead-end corridor is a corridor or part of a corridor from which there is only one escape route.
(f)the width and continuity of such means of escape shall be to the satisfaction of the Chief Surveyor with the Government of India;
(2)In all cargo spaces in a ship intended for the carriage of motor vehicles with fuel in their tanks for their own propulsion where the crew is normally employed, the number and locations of escape routes to the open deck shall be to the satisfaction of the Director General of Shipping but shall in no case be less than two and shall be as widely separated as possible.
(3)In every ship there shall be provided from each machinery space of Category A two means of escape, which shall comply with one of the following-
A.(a) two sets of steel ladders as widely separated as possible leading to doors in the upper part of such space similarly separated and from which access is provided to the lifeboat or liferaft embarkation deck or decks;
B.(a) one steel ladder leading to a door in the upper part of the space from which access is provided to the lifeboat or liferaft embarkation deck or decks and
(4)In a ship of less than 1,000 tons, the Director General may permit one of the means of escape required by sub-rule (3) to be dispensed with having regard to the size and disposition of the upper part of the space.
(5)From machinery spaces in a ship other than machinery spaces Category A. escape routes shall be provided to the satisfaction of the Chief Surveyor with the Government of India having regard to the nature and location of the space and the number of persons normally employed in that space.
(6)Lifts shall not be considered as a means of escape for the purposes of this rule.
50. Means for stopping machinery and closing of openings.-
(1) In every ship the number of skylights, doors, ventilators, openings in funnels for exhaust ventilation and other openings to machinery space shall be the minimum compatible with the proper working and safety of the ship.
(2) (a) provision shall be made for stopping ventilating fans serving machinery, accommodation and cargo spaces;
(3) The skylights to machinery spaces of Category "A" shall be constructed of steel and their flaps shall be capable of being closed and opened from a suitable position outside the space in the event of fire, Adequate arrangements shall be made to permit the release of smoke in the event of fire.
(4) Windows shall not be fitted in machinery space boundaries but glass may be used in control rooms located within the machinery space boundaries.
(5)Machinery driving forced and induced draught fans, oil fuel transfer pumps, oil fuel unit pumps and other similar fuel pumps shall be fitted with remote controls situated outside the spaces in which such machinery or pumps are situated and shall be capable of stopping such machinery or pumps in the event of fire in the said spaces.
(6)Any machinery space of Category "A which accessible from an adjacent shaft tunnel shall be provided with a light-weight steel fire-screen door in addition to any water tight door. The fire-screen door shall be operable from each side and shall be located at the shaft tunnel side of the bulkhead.
51. Materials used in construction.-
(1) Every overboard scupper, sanitary discharge or other inlet or outlet installed in a location where the failure of any such inlet or outlet could cause flooding in the event of fire shall be constructed of materials that are not likely to be rendered ineffective by heat.
(2) Pipes intended to convey oil or other flammable liquids shall be of material that are not likely to be risk of fire and shall not be installed in accommodation and service spaces unless precautions are taken having regard to the risk of fire.
(3) The surface of any insulation shall be impervious to oil vapours in any space where the penetration of oil or oil products would otherwise be possible.
52. Gas welding, flame cutting and domestic gaseous fuel installations.-
(1) In every ship, gas welding, flame cutting or domestic gaseous fuel installation shall be designed, constructed and intalled so that the safety of the ship and of the persons on board is not impaired.
(1) Subject to the provisions of rule 5, the hull, superstructure, structural bulkheads, deck and deckhouses of a ship shall be constructed of steel or other equipvalent material.
(2) Insulation of aluminum alloys components of A or B class divisions except structure which is non-load bearing shall be such that the temperature of the structural core does not rise more than 200.C above the ambient temperature at any time during the applicable exposure to the standard fire test.
(3) Special attention shall be given to the insulation of the aluminum alloy component of columns, stanchions and other structural members required to support lifeboat, and liferaft stowage, launching and embarkation area an A and B class divisions to ensure.-
(a)that for such members supporting lifeboats and life-raft area and A class divisions the temperature rise limitations specified in sub-rule (2) shall apply at the end of one hour; and
(5) One of the following methods of protection shall be adopted in accommodation and service spaces namely; -
a.Method I (C)
(ii) in ships in which the method I (C) is adopted a fixed fire detection and fire alarm system of type complying with the requirements of Schedule VII to the Merchant Shipping (Fire Appliances) rules, 1990 shall be installed and manually operated call points in all corridors, stairways and escape routes within accommodation spaces.
b.Method II (C)
(ii) in ships in which method II (C) is adopted.
(A) An automatic sprinkler, fire detection and fire alarm system complying with the requirements of the Third Schedule shall be so installed and arranged as to protect accommodation spaces.
(B) A fire detection and fire alarm system complying with the requirements of Schedule VII of The Merchant Shipping (Fire Appliances) rules, 1989 shall be installed and arranged as to provide smoke detection and manually operated call points in all corridors, stairways and escape routes within accommodation spaces.
(i) the fitting of a fixed fire alarm system as required under sub-clause (ii) in all spaces in which a fire is expected to originate with no restriction but the area of any accommodation space or spaces bounded by A or B class division shall not exceed 50 M.
Provided that the Director General may increase this areas for public spaces if the circumstances so warrant.
(ii)in ships in which method III (C) is adopted, a fixed fire detection and fire alarm system complying with the requirements of Schedule VII to the Merchant Shipping (Fire Appliances ) rules, 1990 shall be so installed and arranged as to detect the presence of fire in all accommodation spaces and service spaces.
(6)The requirements for use of non-combustible material in construction and insulation of boundary bulkhead of machinery spaces control stations, service spaces, and the protection of stairways enclosures and corridors is common to all three methods referred to in sub-rule (5).
54. Bulkhead within the accommodation and service spaces-
(1) All B class division shall extend from deck to deck and to the shell or other boundaries unless continuous B class ceiling or lining s are fitted on both side of the bulk head in which case the bulkhead may terminate at the continuous ceiling or lining.
(2)Where method I(C) Is adopted, all bulkheads not required under this part to be A or B class divisions shall be of atlas C class division.
(3)Where method II (C) is adopted there shall be no restriction on the construction of bulkhead not required under this part to be A or B class, division except in individual cases where C class bulkheads are required in accordance with the tables specified in the Fourth Schedule.
(4)Where method III (C) is adopted there shall be no restriction on the construction of bulkheads not required by this part to be A or B class divisions except that the area of any accommodation space or spaces bounded by a continuos A or B class division must in no case exceeds 50 M except in individual cases where C class bulkheads are required in accordance with the tables specified in the Fourth Schedule. The Director General may increase this area for public spaces if the circumstances so warrant.
55. Fire integrity of bulkheads and decks-
(1) In adding to complying with specific provisions for fire integrity of bulkheads and decks mentioned elsewhere in this part the minimum fire integrity of bulkheads and decks shall be as prescribed in Tables of Fourth Schedule.
(2) The following requirements shall govern application of the Tables: -
(a)Tables 1 and 2 of the Fourth Schedule shall apply respectively to the bulkheads and decks supporting adjacent spaces.
(b)In determining appropriate fire integrity standards to applied to divisions between adjacent spaces, such spaces are classified according to their fire risks as shown in categorized (i) to (xi) below. The title of each category is intended to be typical rather than restricted. The number in parenthesis in the Tables preceding each category refers to the applicable column or row in the Tables.
(i) Control Station
Spaces containing emergency source of power and lightening.
Corridors and lobbies.
(iii)Accommodation spaces excluding corridors.
Interior stair ways, lifts and escalators (other than those wholly contained within machinery spaced and enclosed thereto.
(v)Service spaces, low risk-
Lockers, store rooms having an area of not less than 2 M2, drawing room and laundries.
(vi)Machinery space of category "A".
All spaces used for cargo (including cargo oil tank) and trunk-ways and hatchways to such spaces.
(ix)Service spaces- (high risk)
Galleys pantries containing cooking appliances and paint and lap rooms, lockers and store rooms having an area of 2 M2 or more, workshops other than those forming part of the machinery space.
Open deck spaces and enclosed promenades having no fire risk . Air spaces ( space outside structure and deck house).
(xi)Ro/Ro cargo space-
Cargo spaces intended for carriage of motor vehicles with fuel in their tanks for their own propulsion.
(3) Continuous B class ceiling or lining in association with the relevant decks or bulkheads may be accepted as contribution wholly or in part to the required installation and integrity of a division.
(4) External boundaries which are required under sub-rule (1) of rue (53) to be of steel or other equivalent material may be pierced in the fitting of windows and side scuttles provided that there is no requirement for such boundaries to have A class integrity elsewhere in this part. Similarly in such boundaries which are not required to be A class integrity doors may be of approved material.
56. Miscellaneous items-
(a) Where A class divisions are penetrated for the passage of electric cables, pipes, trunks ducts or for girders, beams or other structural members, arrangements shall be made to ensure that the fire resistance is not impaired.
(b) Where B class division are penetrated for the passage of electric cable, pipes, trunks, ducts or for the fitting of ventilation terminals lighting fixtures and similar devices arrangements shall be made to ensure that the fire resistance is not impaired.
(2) Pipes penetrating A or B class divisions shall be of materials approved by the Chief Surveyor with the Government of India having regard to the temperature such divisions are required to withstand.
(a) Electric radiators, if used shall be fixed in position and so constructed as to reduce fire risks to a minimum.
(b) No such radiators shall be fitted with an element so exposed that clothing curtains or other similar material can be scorched or set on fire by hear from the element.
(4) Cellulose-nitrate based films shall not be used for cinematography installations.
(5) All waste receptacles shall be constructed of non-combustible materials with no openings in the side bottom.
(6) In spaces where penetration of oil products is possible the surface of installation shall be impervious to oil or oil vapours.
57. Protection of stairways and lift trunks in accommodations spaces, service spaces and control stations-
(1) Stairways which penetrate only a single deck shall be protected at least at one level by at least B-O class divisions and self-closing doors.
(2) Lift which penetrates only a single deck shall be surrounded by A-O class divisions with steel doors at both levels.
(3)Stairways and lifts trunks which penetrate more than a single deck shall be surrounded by at least A-O class division and be protected by self-closing door at all levels,
(4)On ships having accommodation for 12 persons or less and where stairways penetrate more than a single deck and where there are at least two escape routes direct to the open deck at every accommodation level, the Chief Surveyor with the Govt. of India may allow the use of B-O class enclosure.
(5)All stairways shall be of steel frame construction except where the Chief Surveyor with the Govt. of India sanctions the use of other equivalent material.
58. Doors in fire resisting divisions
(a) The fire resistance of doors shall as far as practicable be equivalent to that of the division in which they are fitted.
(2) Doors required to be self- closing shall not be fitted with hold back hooks. However, hold- back arrangements fitted with remote release devices of the fall safe type may be utilized.
(3) In corridor bulkheads ventilation openings may be permitted only in and under the doors of cabins and public spaces. The openings shall be provided only in the lower half of the door, where such opening is in or under a door the total net area of any such opening or openings shall not exceed 0.05m When such opening is cut in a door it shall be fitted with a grille made of non-combustible material.
59. Ventilation system
(1) Ventilation ducts shall be of non-combustible material. Short ducts, however not generally exceeding 2 meters in length and with a cross-section not exceeding 0.02m need not be non-combustible, subject to the following conditions.
(a)the dusts shall be of a material which has a low fire risk.
(2) Where the ventilation ducts with a free-sectional area exceeding 0.02 m pass through class A bulkheads or decks the opening shall be lined with a steel sheet sleeve, unless the ducks passing through the bulkhead or decks are of steel in the vicinity of passage through the deck of bulkhead and the ducts and sleeves shall comply with the following-
(3) Ducts provided for the ventilation of machinery spaces of category A, galleys, car deck spaces, RO/RO cargo spaces or special category spaces shall not pass through accommodation spaces, service spaces or control stations unless the ducts are-
A. (i) constructed of steel having a tickles of at least 3 mm and 5 mm for ducts the widths or diameters of which are up to and including 300 mm and 760 mm and above respectively and, in the case of such ducts, the widths of diameters of which are between 300 mm and 760 mm having a tickles to be obtained by interpolation;
B. (i) constructed of steel in accordance with sub clauses (I) and (ii) of clause (a); and
A.(i) the ducts where they pass through a machinery space of category A, galley, car deck space, Ro/Ro cargo space or special category space are constructed of steel in accordance with sub-clauses (I) and (ii) of clause (a) of Sub-rule (3);
B.(i) the ducts where they pass through a machinery space of category A, galley, car deck space , RO/RO cargo space or special category space are constructed of steel in accordance with sub-clause (I) and (ii) of clause (a) of sub-rule 3;
(6) Such measures as are practicable shall be taken in respect of control stations outside machinery spaces in order to ensure that ventilation, visibility and freedom from smoke are maintained, so that in the event of fire the machinery and equipment contained therein may be supervised and continue to function effectively. Alternative and separate means of air supply shall be so disposed that the risk of both inlets drawing in smoke simultaneously is minimized . At the discretion of the Chief Surveyor with the Government of India, such requirements need not apply to control stations situated on, and opening on to, an open deck, or where local closing arrangements would be equally effective.
(7) Where exhaust ducts from galley ranges pass through accommodation spaces or spaces containing combustible materials, they shall be constructed of class division. Each exhaust duct shall be fitted with-
(a)a grease trap readily removable for cleaning;
(9) Power ventilation of accommodation spaces service spaces, cargo spacts, control stations any machinery spaces shall be capable of being stopped from an easily accessible position outside space cut off in the event of a fire in the spaces served. The means provided for stopping the power ventilation of the machinery space shall be entirely separate from the means provided for stopping ventilation of other spaces.
(a) Closed Ro/Ro cargo spaces shall be provided with an effective power ventilation system sufficient, to provide at least six air changes per hour based on an empty hold. The systems shall be entirely separate from other ventilating systems. Ventilation ducts serving Ro/Ro cargo spaces capable of being effectively sealed shall be separated for each cargo space.
(11)The requirements of sub-rule (10) shall also apply to cargo spaces other than Ro/Ro cargo spaces intended for the carriage of motor vehicles with fuel in their tanks for their own propulsion.
60. Restricted use of combustible materials-
(1) All exposed surfaces in corridors and stairway enclosures and surfaces including grounds is concealed or inaccessible spaces in accommodation and service spaces and control station shall have low flame-spread characteristics. Exposed surfaces of ceilings in accommodation and service spaces and control stations shall have low flame-spread characteristics.
(2)Paints, varnishes and other finishes used on exposed interior surfaces shall not offer an undue fire hazard in the judgement of the Chief Surveyor with the Govt.of India and shall not be capable of producing excessive quantities of smoke.
(3)Primary deck coverings if applied within accommodation and service spaces and control stations shall be of approved material which will not readily ignite or give rise to toxic or explosive hazards at elevated temperatures.
61. Details of construction.-
(1) Where Method if (c) is used, all linings, draught stops, ceiling and their associated grounds shall be of non-combustible materials in accommodation and service spaces and control stations.
(2) Where Methods II(C) and III(C) are used ceilings, linings, draught stops and their associated grounds shall be of non-combustible materials, in corridors and stairways enclosures serving accommodation and service spaces and control stations.
(3)Where Methods I(C) , II(C) and III(C) are used-
(a)Insulting materials shall be non-combustible , except in cargo spaces or refrigerated compartments of service spaces. Vapour barriers and adhesives used in conjuction with insulation , as well as the insulation of pipe fittings, for cold service systems need not be of non-combusting materials, but they shall be kept to the minimum quantity practicable and their exposed surface shall have qualities of resistance to the propagation of flame.
62. Structural fire safety measures for tankers.-
(1) The requirements of this Chapter are additional to those of Chapter 1 of Part III except as provided otherwise in rules 64 and 65.
(2) Unless expressly provided otherwise this chapter shall apply to tankers carrying crude oil, and petroleum products having a flash point not exceeding 60 degree C (cloused cup test), as determined by an approved flashpoint apparatus and a Reid Vapour pressure which is below atmosphere pressure and other liquid products having a similar fire hazard.
(3) Where liquid cargoes other than this referred to in sub-rule (2) or liquified gases which introduce additional fire hazards are intended to be carried, additional safety measures shall be required to the satisfaction of the Director General of Shipping, having due regard to the provisions of the international Bulk Chemical Code, the Bulk Chemical Code, the Internal Gas Carrier Code and the Gas Carrier Code, as may be appropriate.
(4)Combination carriers shall not carry solid cargoes unless all cargo tanks are empty of oil and gas freed or unless the arrangements provided in each case are to be satisfaction of the Director General of Shipping and in accordance with the relevant operational requirements contained in the International Maritime Organisation Guidelines for Inert Gas Systems.
(5)Chemical tankers and gas carriers shall comply with the requirements of this part , except where alternative and supplementary arrangements are provided to the satisfaction of the Director General of Shipping having due regard to the provisions of the International Bulk Chemical Code, the Bulk Chemical Code, the International Gas Carrier Code and the Gas Carrier Code, as may be appropriate.
63 Location and separation of spaces-
(1). Machinery spaces shall be positioned of cargo tanks and slop tanks, they shall also be situated at of the cargo pump rooms and not necessarily aft of the oil fuel bunker tanks. Any machinery space shall be isolated from cargo tanks and slop tanks by cofferdams, cargo pump rooms, oil fuel bunker tanks or permanent ballast tanks. Pump rooms containing pumps and their accessories for ballasting those spaces situated adjacent to cargo tanks and slop tanks and pumps for oil fuel transfer shall be considered as equivalent to a cargo pump room within the context of this rule provided that such pump rooms have the same safety standard as that required for cargo pump rooms. However the lower portion of the pump room may be recessed into machinery spaces of category A to accommodate pumps, provided that the deck head of the recess is in general not more than one third of the moulded depth above the keel, except that in the case of ships of not more than 25,000 tons deadweight,where it can be demonstrated that for reasons of access and satisfactory piping arrangements this is impracticable the Chief Surveyor with the Government of India may permit a recess of such height but not exceeding one-half of the moulded depth above the keel.
(2) Accommodation spaces, main cargo control stations, control stations and service spaces (excluding isolated cargo handling gear lockers) shall be positioned aft of all cargo tanks, slop tanks, cargo pump rooms and cofferdams which isolate cargo or slop tanks from machinery spaces but not necessarily aft of the oil fuel bunker tanks. A recess provided in accordance with sub-rule (1), need not be taken into account when the position of these spaces so being determined.
(3) However, where deemed necessary, accommodation spaces, control stations, machinery spaces other than those of category A, and service spaces may be permitted forward of the cargo area, provided they are isolated from the cargo tanks and slop tanks by cofferdams, cargo pumps rooms oil fuel bunker tanks or permanent ballast tanks and subject to an equivalent standard of safety and appropriate availability of fire extinguishing arrangements being provided to the satisfaction of the Director General of Shipping. In addition where deemed necessary for the safety of navigation of the ship the Director General of Shipping may permit machinery spaces containing internal combustion machinery not being main propulsion machinery having and output greater than 375 KW to be located forward of the cargo area provided the arrangements are in accordance with the provisions of this sub-rule.
(4) In combination carriers
(a)the slop tanks are to be surrounded by cofferdams except where the boundaries of the slop tanks where slop may be carried on dry cargo voyages are the hull main cargo deck, cargo pump room bulkhead or oil fuel bunker tank. These cofferdams shall not be open to a double bottom pipe tunnel, pump room or other enclosed space. Means shall be provided for filling the cofferdams with water and for draining them. Where the boundary of a slop tank is the cargo pump room bulkhead the pump room shall not open to the double bottom, pipe tunnel or other enclosed space, however, openings provided with gastight bolted covers may be permitted.
(5) Where the fitting of a navigation position above the cargo area is shown to be necessary , it shall be for navigation purposes only and it shall be separated from the cargo tank deck by means of an open space with a height of at least 2m. The fire protection of such a navigation position shall be as required for control spaces in rule 65 and other provisions as applicable, of this part.
(6) Means shall be provided to keep deck spill away from the accommodation and service areas. This may be accomplished by provision of a permanent continuous coaming of a suitable height extending from side to side. Special consideration shall be given to the arrangements associated with stern loading.
(7) Exterior boundaries of superstructures and deckhouses enclosing accommodation and including any overhanging decks which support such accommodation, shall be insulated to A-60 standard for the whole of theportions which face the cargo area and for 3 meters aft of the front boundary. In the case of the sides of those superstructures and deck houses, such insulation shall be carried as high is in deemed necessary by the Chief Surveyor with the Government of India.
(8) (a) Entrances, air inlets and openings to accommodation spaces, service spaces and control stations shall not face the cargo area. They shall be located on the transverse bulkhead not facing the cargo are or on the outboard side of the superstructure of deckhouse at a distance of at least 4 per cent of the length of the ship but not less than 3 meters from the end of the superstructure or deckhouse facing the cargo area. This distance , however, need not exceed 5 meters.
64. Structure bullheads within accommodation and service spaces and details of construction-
(1) For the application of the requirements of rules 53,54 and 61 to tankers, only method I (C) shall be used.
(2) Skylights to cargo pump rooms shall be of steel , shall not contain any glass and shall be capable of being closed from outside the pump room.
65. Fire integrity of bulkheads and decks.
(1) In lieu of rule 55 and in addition to complying with the specific provisions for fire integrity of bulkheads and decks mentioned elsewhere in this chapter the minimum fire integrity of bulkheads and decks shall be as prescribed in Tables 1 and 2 of Faith Schedule.
(2) The following requirements shall govern application of the Tables.
(a)Tables of Fifth Schedule shall apply respectively to bulkhead and decks separating adjacent spaces.
Spaces containing emergency sources of power and lighting .
(iii)Accommodation spaces excluding corridors.
Interior stairways , lifts and escalators (other than wholly contained within the machinery spaces) and enclosure thereto.
(v) Service spaces (low risk)-
Lockers and store-rooms having areas of less than 2m2 drying rooms laundries.
(vii) Other machinery spaces.
(viii) Cargo pump rooms-
(xi)Service spaces (high risk)-
(x) Open decks-
Open deck spaces and enclosed promenades having no fire risk. Air spaces (the space outside superstructures and deckhouse).
(3) Continuos B class ceiling or linings , in association which the relevant decks or bulkheads, may be accepted as contributing wholly or in part, to the required insulation and integrity of a division.
(4)External boundaries which are required under rule 64 to be steel or other equivalent material may be pierced for the fitting of windows and sidescuttles provided that there is no requirement for such boundaries to have A class integrity elsewhere in these requirements. Similarly in such boundaries which are not required to have A class integrity, doors may be of materials to the satisfaction of the Chief Surfer with the Government of India.
(5)Permanent approved gaslight lighting enclosures for illuminating cargo pump rooms may be permitted in bulkhead and decks separating cargo pumps rooms and other spaces provided they are of adequate strength and the integrity and gastightness of the bulkhead or deck is maintained.
66. Venting purging gas freeing and ventilation cargo tank venting-
(a) The venting systems of cargo tanks shall be entirely distinct from the air pipes of the other compartments of the ships. The arrangement and position of openings in the cargo tank deck from which emission of flammable vapours can occur shall be such as to minimize the possibility of flammable vapours being admitted to enclosed spaces containing a source of ignition, or collecting in the vicinity of deck machinery and equipment which may constitute an ignition hazard. In accordance with this general principle the criteria in clause (b) to (I) shall apply,
(b) the venting arrangements shall be so designed and operated as to ensure that neither pressure nor vacuum in cargo tanks shall exceed design parameters and be such as to provide for,-
(i) the flow of the small volumes of vapour, air or inert gas mixture caused by thermal variations in a cargo tank in all cases through pressure vacuum valves;
(ii) and the passage of large volumes of vapour, air or inert gas mixture during cargo loading ballasting, or during discharging .
(i) the venting arrangements in each cargo tank may be independent or combined with other cargo tanks and may be incorporated into the alert gas piping.
(d) the venting arrangements shall be connected to the top of each cargo tank and shall be self-draining to the cargo tanks wander all normal conditions of trim and list of the ship. Where it may not be possible to provide self draining lines permanent arrangements shall be provided to drain the vent lines to a cargo tank.
(e)the venting system shall be provided with devices to prevent the passage of flame into the cargo tanks. The design, testing and locating of these devices shall comply with the requirement established by the Director General.
(f)Provision shall be made to guard against liquid rising in the venting system to a height which would exceed the design head of cargo tanks. This shall be accomplished by high level alarms or overflow control systems or other equivalent means together with gauging devices and cargo tank filling procedures.
(g)Openings for pressure release required by sub-clause (I) of clause (b) , shall,-
(i)have as great a height as is practicable above the cargo tanks deck to obtain maximum dispersal of flammable vapours but in no cases less than 2 meters above the cargo tank decks;
(h)Pressure/ vacuum valves may be provided with a bypass arrangement when they are located in a vent main or masthead rise, where such an arrangement is provided there shall be suitable indicators to show whether the bypass is open or closed.,
(i)Vent outlets for cargo loading, discharging and ballasting shall
(A)be such as to permit the free flow of vapour mixtures;
In combination carries , the arrangement to isolate slop tanks containing oil or oil residues from other cargo tanks shall consists of blank flanges which will remain in position at all times when cargoes other than liquid cargoes referred to in sub-rule (2) of rule 62 are carried.
(a) Cargo pump rooms shall be mechanically ventilated and discharges from the exhaust fans shall be led to a safe place on the open deck. The ventilation of these rooms shall have sufficient capacity to minimize the possibility of accumulation of flammable vapours. The number of changes or air shall be at least 20 per hour, based upon the gross volume of the space. The air ducts shall be arranged so that all of the space is effectively ventilated. The ventilation shall be of the suction type using fans of the non-sparking type.
(b) the arrangement of ventilation inlets and outlets and other deckhouse and superstructure boundary space openings shall be such as to complement the provisions of sub-rule(1). Such vents especially for machinery spaces shall be situated as far aft as practicable. Due consideration in this regard should be given when the ship is equipped to load or discharge at the stern.Sources of ignition such as electrical equipment shall be so arranged as to avoid an explosion hazard.
(c) in combination carriers all cargo spaces and any enclosed spaces adjacent cargo spaces shall be capable of being mechanically ventilated. The mechanical ventilation may be provided by portable fans. An approved fixed gas warning system capable of monitoring flammable vapours shall be provided in cargo pump rooms and pipe ducts and cofferdams referred to in sub-rule (1) of rule 63 adjacent to slop tanks. Suitable arrangements shall be made to facilitate measurement of flammable vapours in all other spaces within the cargo area. Such measurements shall be made possible from open deck or easily accessible positions.
Master / Chief Officer Chief Engineer / 2nd Engineer
Master / Chief Officer Chief Engineer / 2nd Engineer
Master / Chief Officer Chief Engineer / 2nd Engineer
Crew Required AB / Oiler / Motor man / Fitter / Pumpman/Cook with Relevant Experience