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[接上页] 20(1) In every ship to which these Regulations apply the machinery, boilers and other pressure vessels 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. In every ship to which these Regulations apply the machinery, boilers and other pressure vessels 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. 20(2) Without prejudice to the generality of the foregoing, means shall be provided which will prevent overpressure in any part of such machinery, 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 Secretary of State may, having regard to the output or any other feature of any boiler or unfired steam generator, permit only one safety valve to be fitted if he is satisfied that adequate protection against overpressure is provided. Only one safety valve need be fitted in every boiler and every unfired steam generator if the Director is satisfied that adequate protection against overpressure is provided. Oil and gaseous fuel installations 30(1) In every ship to which these Regulations apply oil fuel provided for use in boilers or machinery shall have a flash point of not less than 60℃ (closed test): provided that the Secretary of State may, subject to such conditions as he may impose- In every ship to which these Regulations apply oil fuel provided for use in boilers or machinery shall have a flash point of not less than 60℃ (closed test): provided that the Director may, subject to such conditions as he may impose- (a) permit any ship to use oil fuel having a flash point of not less than 55℃ in boilers, or oil fuel having a flash point of not less than 43℃ in internal combustion type machinery; (b) permit 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.Nothing in this paragraph of this regulation shall apply to fuel provided for machinery permitted by regulation 6(3)(a), regulation 7(3)(a) or regulation 8(3)(a) of these Regulations. (a) permit any ship to use oil fuel having a flash point of not less than 55℃ in boilers, or oil fuel having a flash point of not less than 43℃ in internal combustion type machinery; (b) permit 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.Nothing in this paragraph of this regulation shall apply to fuel provided for machinery permitted by regulation 6(3)(a), regulation 7(3)(a) or regulation 8(3)(a) of these Regulations. Means of escape 36(2) In every ship to which these Regulations apply there shall be provided from each engine room, shaft tunnel and boiler room two means of escape as widely separated as practicable, one of which may be a watertight door if such a door is available as a means of escape. Where no such watertight door is available, the two means of escape shall consist of two sets of steel ladders leading to separate doors in the casing or elsewhere from which there is access to the lifeboat or liferaft embarkation deck or decks. The Secretary of State may exempt any such ship of less than 2000 tons from the requirements of this paragraph if at least one effective means of escape is provided. The exemption applies to a ship of less than 2000 tons on condition that there shall be provided at least one effective means of escape. Restriction of combustible materials 63(1) Within accommodation spaces, service spaces and control stations- (a) all ceilings, linings, draught stops and insulating materials shall be of non-combustible materials except for- (i) materials used to insulate refrigerated compartments; (ii) materials used to insulate valves associated with hot and cold service systems, provided that their exposed surfaces are such that a Class 1 or 2 surface spread of flame will not be exceeded; (iii) vapour barriers and adhesives used in conjunction with insulating materials, provided that their exposed surfaces are such that a Class 1 or 2 surface spread of flame will not be exceeded;(b) the framing, grounds and joint pieces of linings, ceilings and draught stops shall be non-combustible; (c) bulkheads, ceilings and linings shall not be faced with a combustible veneer unless the thickness of such a veneer does not exceed 2.0 millimetres, except in corridors, stairway enclosures and control stations where it shall not exceed 1.5 millimetres; (d) all exposed surfaces in corridors and stairway enclosures and surfaces in concealed or inaccessible spaces shall be such that a Class 1 or 2 surface spread of flame is not exceeded; (e) primary deck covering shall be of a type which will not readily ignite. |