CS 25.1731 Powerplant and APU fire detector system; EWIS
ED Decision 2008/006/R
(a) EWIS that are part of each fire or overheat detector system in a fire zone must be at least fire-resistant.
(b) No EWIS component of any fire or overheat detector system for any fire zone may pass through another fire zone, unless:
(1) It is protected against the possibility of false warnings resulting from fires in zones through which it passes; or
(2) Each zone involved is simultaneously protected by the same detector and extinguishing system.
[Amdt 25/5]
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