Regulation 13-1 - Sample extraction smoke detection systems
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Regulation 13-1 - Sample extraction smoke detection systems

Parent topic: Part A - General

13-1.1.2 Calculation of intervals

 The interval (I) should depend on the number of scanning points (N) and the response time of the fans (T) (see interpretations of paragraph 13-1.3.3 below). With a 20 % allowance:

However, the maximum allowable interval should not exceed 120 s (Imax = 120 s).

13-1.3.3 Response time for fans

 Depending on the capacity of the fans and the length of system piping the maximum response time of the fans in combination with the system piping should be around 15 s.

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