CALCULATIONS AND BRANCH FEEDER
CIRCUITS QUESTIONS WITH
COMPLETE ANSWERS
What mmis mmthe mmdemand mmload mmfor mmone mmhousehold mmrange mmwith mma
mmnameplate mmrating mmof mm11.75kW, mm240V, mm1Ø? mm- mmANS-8kW
What mmis mmthe mmlighting mmload mmon mma mm120V mmcircuit mmfor mmsix mm100W
mmincandescent mmlights mmand mmfour mmfluorescent mmfixtures mmwith mma mmballast
mmrating mmof mm1.5A, mmall mmoperating mmcontinuously mmfor mm8 mmhours mmper mmday?
mm13.75A mm- mmANS-13.75A
What mmis mmthe mmload mmcenter mmdistance mmfor mma mm208V, mmfour-wire, mmthree-
phase mmbranch mmcircuit mmwith mmfixed mmnoncontinuous mmloads mmfrom mmthe
mmsource mmof mm60A mmat mm45', mm40A mmat mm60', mm30A mmat mm75', mmand mm25A mmat
mm100' mm- mmANS-63.55'
What mmis mmthe mmload mmcenter mmlength mmfor mma mmbranch mmcircuit mmconsisting mmof
mmnoncontinuous mmloads mmof mm125A mmat mm80', mm75A mmat mm110', mmand mm50A mmat
mm100'? mm- mmANS-93'
What mmis mmthe mmload mmcenter mmlength mmfor mma mmbranch mmcircuit mmwith
mmnoncontinuous mmloads mmof mm20A mmat mm60' mmand mm50A mmat mm125'? mm- mmANS-
106.43'
What mmis mmthe mmload mmfor mm55' mmof mmshow mmwindow mmusing mmthe mmlinear mmfoot
mmmethod? mm- mmANS-13,750VA
What mmis mmthe mmmotor mmfull-load mmcurrent mmfor mma mmmotor mmwith mma
mmnameplate mmrating mmof mm50hp, mm460V, mm3Ø? mm- mmANS-65A
What mmis mmthe mmrequired mmcircuit mmampacity mmfor mma mmnoncontinuous, mmthree-
phase mmload mmof mm6kW mmat mm208V? mm- mmANS-16.65A