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National Electrical Code 2011 Handbook (International Electric Code Series)_下.pdf

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National Electrical Code 2011 Handbook (International Electric Code Series)_下.pdf

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National Electrical Code 2011 Handbook (International Electric Code Series)_下.pdf

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文档介绍:Article470●(A)-torto50voltsorlesswithin5minutesafterthecapacitorisdisconnectedfromthesourceofsupply.(B)--tors,transformers,(A).Meansarerequiredtodrainoffthestoredchargeinaca-,dischargeresistors(blue)andovercurrentprotection.(CourtesyapersonservicingtheequipmentcouldreceiveasevereofGEEnergy)shock,,diagram(a),,diagram(a).,thestoredchargedrainsoffthroughthewindingswhenthecir-(b),capacitorsareoftenequippedwithbuilt-inresistorstodrainoffthestoredcharge,,Nominal,,(A)ProtectedAgainstPhysicalDamagedevice(B)IsolatedbyEnclosureorElevationShort-circuitground-fault(bustibleMaterialsprotectivedevice(D)Clearances(E)-,Nominal,(a)(b)DischargeresistorThisart