Section 30 in The Merchant Shipping (Cargo Ship Construction And Survey) Rules, 1974
30. Means of stopping machinery, shutting off oil fuel, suction pipes and closing of openings.
(1)In every ship means shall be provided for stopping ventilating fans fitted in the machinery, accommodation and cargo spaces. For machinery and cargo spaces, means shall be provided for closing all skylights, doorways, ventilators, annular spaces around funnels and other openings to such spaces. Such means shall be capable of being operated from positions outside the said space which would not become inaccessible by a fire within such spaces.(2)In every ship, machinery driving-forced and induced draught fans, oil fuel transfer pumps, oil fuel pumps and other similar fuel pumps shall be fitted with remote controls situated outside the spaces in which machinery or pumps are situated. Such controls shall be capable of stopping such machinery or pumps in the event of fire in the said spaces.(3)(a)In every ship, every pipe connected to any oil fuel storage, settling or daily service tank, not being a double bottom tank, which, if damaged, would permit discharge of contents so as to cause a fire hazard, shall be fitted with a valve or cock which 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 if the inlet pipe is fitted to such a tank a non-return valve similarly secured to the tank may be substituted for the valve or cock required under this sub-rule.(b)Every such pipe connected to an oil fuel deep-tank transversed by any shaft or pipe tunnel, in addition to the valve to be fitted to the tank under the requirements of Cl. (a), a valve or valves may be fitted on the pipe line or lines outside the tunnel or tunnels to enable control to be exercised in the event of fire.
