Electrical engineering What ampacity must all branch-circuit conductors used for wiring a ceiling outlet box be de-rated at?Select one:a.150° Cb.60° CC.75° Cd.90° CWhy do ceiling outlet boxes on which a fixture may be hung require a conductor insulation ratinghigher than the de-rated value of 60° C?Select one:а.because of the possibility of too many outlets on the same branch circuitb.because of the possibility of too much heat from the fixture lampС.because of the possibility of oversized fixture drawing more currentd.because of the possibility that the thermal protective device could fail

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What ampacity must all branch-circuit conductors used for wiring a ceiling outlet box be de-rated at? Select one: a. 150° C b. 60° C C. 75° C d. 90° C

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter20: Special-purpose Outlets For Ranges, Counter-mounted Cooking Unit , And Wall-mounted Oven

Section20.2: Wall-mounted Oven Circuit And Free-standing Range

Problem 12R

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