(b)
[Each .re detector system must be constructedand installed so that–

(1)
It will withstand the vibration, inertia, and other loads to which it may be subjected in operation;

(2)
There is a means to warn the crew in the event that the sensor or associated wiring withinadesignated .rezoneissevered atonepoint,unlessthesystem continuestofunction asasatisfactorydetectionsystemafterthe serving; and

(3)
There is a means to warn the crew in the event of a short circuit in the sensor orassociated wiring withinadesignated .rezone,unlessthesystemcontinues to function as a satisfactory detection system after the short circuit.]

(c)
No .reoroverheatdetectormay bea.ectedby any oil,water,other .uids,orfumes that might be present.

(d)
There must be means to allow the crew to check, in .ight, the functioning of each .re or overheat detector electric circuit.

(e)
Wiring and other components of each .re or overheat detector system in a .re zone must be at least .re-resistant.

′
Elodie Roux. Septembre 2003
Subpart E : Powerplant
(f)
No .re or overheat detector system component for any .re zone may pass through another .re zone, unless–

(1)
It is protected against the possibility of false warnings resulting from .res in zones through which it passes; or

(2)
Each zone involved is simultaneously protected by the same detector and ex-tinguishing system.

(g)
[Each .re detector system must be constructedso that when it is in the con.gura-tion for installation it will not exceed the alarm activation time approved for the detectors using the response time criteria speci.ed in the appropriate Technical Standard Order for the detector.]

Amdt. 25-26, E.. 4/23/71
FAR25.1205 :[Revoked.]
[Revoked.] Amdt. 25-23, E.. 5/8/70
FAR 25.1207 : Compliance.
[Unless otherwise speci.ed, compliance withthe requirements ofSecs25.1181through 25.1203mustbeshownby afull scale .retest orby oneormoreofthefollowing methods:
(a)
Tests of similar powerplant con.gurations;

(b)
Tests of components;

(c)
Service experience of aircraft with similar powerplant con.gurations;

(d)
Analysis.] Amdt. 25-46, E.. 12/1/78

Chapitre 49 Subpart F : Equipment
Sommaire
49.1General ............................... 663 FAR 25.1301 : Function and installation. . . . . . . . . . . . 663 FAR 25.1303 : Flight and navigation instruments. . . . . . . 663 FAR 25.1305 : Powerplant instruments. . . . . . . . . . . . . 664 FAR 25.1307 : Miscellaneous equipment. . . . . . . . . . . . 665 FAR25.1309:[Equipment,systems,andinstallations.] . . . 666 FAR25.1316:[Systemlightningprotection.] . . . . . . . . . 667
49.2Instruments:Installation .................... 668 FAR 25.1321 : Arrangement and visibility. . . . . . . . . . . 668 FAR25.1322:[Warning,caution,and advisorylights.] . . . 668 FAR 25.1323 : Airspeed indicating system. . . . . . . . . . . 669 FAR 25.1325 : Static pressure systems. . . . . . . . . . . . . 669 FAR 25.1326 : Pitot heat indication systems. . . . . . . . . . 671 FAR 25.1327 : Magnetic direction indicator. . . . . . . . . . 671 FAR 25.1329 : Automatic pilot system. . . . . . . . . . . . . 671 FAR 25.1331 : Instruments using a power supply. . . . . . . 672 FAR25.1333:[Instrumentsystems.] . . . . . . . . . . . . . . 672 FAR25.1335:[Flightdirectorsystems.] . . . . . . . . . . . . 672 FAR 25.1337 : Powerplant instruments. . . . . . . . . . . . . 673
49.3ElectricalSystemsandEquipment . . . . . . . . . . . . . . . 674 FAR25.1351:General. ..................... 674 FAR 25.1353 : Electrical equipment and installations. . . . . 674 FAR25.1355:Distributionsystem. . . . . . . . . . . . . . . 675 FAR 25.1357 : Circuit protective devices. . . . . . . . . . . . 676 FAR25.1359:[Removed.] ................... 676 FAR25.1363:Electrical systemtests. . . . . . . . . . . . . . 676 FAR25.1369:[Revoked.] .................... 676
　
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