SAFETY OF LIFE AT SEA 



C79 



be available immediately and will not be dependent on the lighting of boilers 

 and that it can be supplied continuously until the end of the voyage in the 

 required quantity in addition to any steam necessary for the normal require- 

 ments of the ship including propulsion and that provision is made for extra 

 feed water necessary to meet this requirement. 



(/) Means shall be provided for giving audible warning of the release of 

 fire smothering gas into any working space. 



Regulation 59 



Automatic Sprinkler Systems in Passenger Ships 



(a) Any automatic water sprinkler system for fire protection required in 

 accordance with Regulation 51 of this Chapter shall be ready for immediate 

 use at any time, and no action on the part of the crew shall be necessary to 

 set it in operation. Where such a system is fitted, it shall be kept charged at 

 the necessary pressure and shall have provision for a continuous supply of 

 water. 



(b) The system shall be subdivided into a number of sections to be decided 

 by the Administration, and automatic alarms shall be provided to indicate at 

 one or more suitable points or stations the occurrence or indication of fire, and 

 its location. 



(c) The pump or pumps to provide the discharge from sprinkler heads 

 shall be so connected as to be brought into action automatically by a pressure 

 drop in the system. There shall be a connection from the ship's fire main 

 provided with a lockable screw down valve and a non-return valve. 



W {d) Each pump shall be capable of maintaining a sufiicient supply of water 

 at the appropriate pressure, at the sprinkler heads, while such number of 

 sprinkler heads as will be decided by the Administration are in operation. 



{e) There shall be not less than two sources of power supply for the sea 

 water pumps, air compressors and automatic alarms. Where the sources of 

 power are electrical, these shall be a main generator and an emergency source 

 of power. One supply shall be taken from the main switchboard, by separate 

 feeders reserved solely for that purpose. Such feeders shall be run to a 

 change-over switch situated near to the sprinkler unit and the switch shall 

 normally be kept closed to the feeder from the emergency switchboard. The 

 change-over switch shall be clearly labelled and no other switch shall be 

 permitted in these feeders. 



(/) Sprinkler heads shall be required to operate at temperatures that will 

 be decided by the Administration. Suitable means for the periodic testing 

 of all automatic arrangements shall be provided. 



Ch. 2 



