Regulation 13 - Fixed fire detection and fire alarm systems

 Group of fire detectors and manually operated call points as reported in the indicating unit(s) required by regulation II-2/13.1.6.

 The same section of detectors may serve spaces on more than one deck if those spaces are located in fore or aft end of the ship or they are so arranged that they constitute common spaces on different decks (e.g. fan rooms, galleys, public spaces, etc.).

In ships of less than 20 m in breadth, the same section of detectors may serve spaces on both sides of the ship.

 For fire detection systems with remotely and individually identifiable fire detectors, the requirement set out in this regulation is considered to have been met when a loop covering accommodation, service spaces and control station does not include machinery spaces of category A.

 The following arrangement may be acceptable:

• .1 to activate a paging system;

• .2 to activate the fan stops;

• .3 to activate the closure of fire doors;

• .4 to activate the closure of fire dampers;

• .5 to activate the sprinkler system;

• .6 to activate the smoke extraction system; and

• .7 to activate the low-location lighting system.

• 1 A loop should be arranged so that it will not pass through a space twice. When this is not practical (e.g. for large public spaces), the part of the loop which by necessity passes through the space for a second time should be installed at the maximum possible distance from the other parts of the loop.

• 2 Definitions:

  Loop means electrical circuit linking detectors of various sections in a sequence and connected (input and output) to the indicating unit(s).

  Zone address identification capability means a system with individually identifiable fire detectors.

 Distances of less than 0.5 m from bulkheads may be accepted in corridors, lockers and stairways.

 Detectors installed within cold spaces such as refrigerated compartments should be tested according to IEC 68-2-1 (1974) - Section one - Test Aa.

 The operation temperature of heat detectors in spaces covered by this regulation may be 130° C, in saunas up to 140°C.