文档介绍：-2008LOW-VOLTAGEELECTRICALINSTALLATIONS-3Part4-43:-sectionalareaoranotherchangemade,providedthatitpossessesanoperatingcharacteristicsuchthatitprotectsthewiringsituatedontheloadsideagainstshort-circuit,-circuitProvidedthatbothofthefollowingconditionsaresimultaneouslyfulfilled:•thewiringisinstalledinsuchawayastoreducetheriskofashort-circuittoaminimum(seeitemb)),and•bustiblematerial,devicesforprotectionagainstshort-circuitneednotbeprovidedforapplicationssuchas:a)conductorsconnectinggenerators,transformers,rectifiers,accumulatorbatteriestotheassociatedcontrolpanels,theprotectivedevicesbeingplacedinthesepanels;b)circuitswheredisconnectioncouldcausedangerfortheoperationoftheinstallationsconcerned,;c)certainmeasuringcircuits;d)attheoriginofaninstallationwherethedistributorinstallsoneormoredevicesprovidingprotectionagainstshort-circuitandagreesthatsuchadeviceaffordsprotectiontothepartoftheinstallationbetweentheoriginandthemaindistributionpointoftheinstallationwherefurthershort---,thenoneormoreofthefollowingmeasuresshallbetaken:a)Thewiringshallbecarriedoutinsuchawayastoreducetoaminimumtheriskofashort-circuitinanyparallelconductor,forexamplebyprotectionagainstmechanicaldamage,)Fortwoconductorsinparallel,ashort-)Formorethantwoconductorsinparallel,short-circ