LOAD CALCULATIONS - BRANCH AND
FEEDER CIRCUITS QUESTIONS WITH
COMPLETE ANSWERS
Ampacity: jj- jjANS-The jjmaximum jjcurrent jjin jjamperes jjthat jja jjconductor jjcan jjcarry
jjcontinuously jjunder jjthe jjconditions jjof jjuse jjwithout jjexceeding jjits jjtemperature jjrating.
Branch jjcircuit jj- jjANS-The jjcircuit jjconductors jjbetween jjthe jjfinal jjovercurrent jjdevice
jjprotecting jjthe jjcircuit jjand jjthe jjoutlet(s).
Continuous jjload: jj- jjANS-A jjload jjwhere jjthe jjmaximum jjcurrent jjis jjexpected jjto
jjcontinue jjfor jjthree jjhours jjor jjmore.
Device: jj- jjANS-A jjunit jjof jjan jjelectrical jjsystem, jjother jjthan jja jjconductor, jjthat jjcarries
jjor jjcontrols jjelectric jjenergy jjas jjits jjprincipal jjfunction.
Individual jjbranch jjcircuit jj- jjANS-A jjbranch jjcircuit jjthat jjsupplies jjonly jjone jjpiece jjof
jjutilization jjequipment.
Outlet: jj- jjANS-A jjpoint jjon jjthe jjwiring jjsystem jjat jjwhich jjcurrent jjis jjtaken jjto jjsupply
jjutilization jjequipment.
Overcurrent jj- jjANS-Any jjcurrent jjin jjexcess jjof jjthe jjrated jjcurrent jjof jjequipment jjor jjthe
jjampacity jjof jja jjconductor. jjIt jjmay jjresult jjfrom jjoverload, jjshort jjcircuit, jjor jjground jjfault.
Receptacle: jj- jjANS-A jjcontact jjdevice jjinstalled jjat jjan jjoutlet jjfor jjconnection jjas jja
jjsingle jjcontact jjdevice. jjA jjsingle jjreceptacle jjis jja jjsingle jjcontact jjdevice jjwith jjno jjother
jjcontact jjdevice jjon jjthe jjsame jjyoke. jjA jjmultiple jjreceptacle jjis jja jjsingle jjdevice
jjcontaining jj(duplex) jjor jjmore jjreceptacles.
Receptacle jjoutlet: jj- jjANS-An jjoutlet jjwhere jjone jjor jjmore jjreceptacles jjare jjinstalled.
Utilization jjequipment: jj- jjANS-Equipment jjthat jjutilizes jjfor jjelectronic, jjchemical,
jjheating, jjelectric jjenergy jjlighting, jjelectromechanical, jjor jjsimilar jjpurposes.
NEC jjArticle jj210 jj- jjANS-Covers jjbranch jjcircuits jj(except jjfor jjbranch jjcircuits jjthat
jjsupply jjonly jjmotor jjloads).
FEEDER CIRCUITS QUESTIONS WITH
COMPLETE ANSWERS
Ampacity: jj- jjANS-The jjmaximum jjcurrent jjin jjamperes jjthat jja jjconductor jjcan jjcarry
jjcontinuously jjunder jjthe jjconditions jjof jjuse jjwithout jjexceeding jjits jjtemperature jjrating.
Branch jjcircuit jj- jjANS-The jjcircuit jjconductors jjbetween jjthe jjfinal jjovercurrent jjdevice
jjprotecting jjthe jjcircuit jjand jjthe jjoutlet(s).
Continuous jjload: jj- jjANS-A jjload jjwhere jjthe jjmaximum jjcurrent jjis jjexpected jjto
jjcontinue jjfor jjthree jjhours jjor jjmore.
Device: jj- jjANS-A jjunit jjof jjan jjelectrical jjsystem, jjother jjthan jja jjconductor, jjthat jjcarries
jjor jjcontrols jjelectric jjenergy jjas jjits jjprincipal jjfunction.
Individual jjbranch jjcircuit jj- jjANS-A jjbranch jjcircuit jjthat jjsupplies jjonly jjone jjpiece jjof
jjutilization jjequipment.
Outlet: jj- jjANS-A jjpoint jjon jjthe jjwiring jjsystem jjat jjwhich jjcurrent jjis jjtaken jjto jjsupply
jjutilization jjequipment.
Overcurrent jj- jjANS-Any jjcurrent jjin jjexcess jjof jjthe jjrated jjcurrent jjof jjequipment jjor jjthe
jjampacity jjof jja jjconductor. jjIt jjmay jjresult jjfrom jjoverload, jjshort jjcircuit, jjor jjground jjfault.
Receptacle: jj- jjANS-A jjcontact jjdevice jjinstalled jjat jjan jjoutlet jjfor jjconnection jjas jja
jjsingle jjcontact jjdevice. jjA jjsingle jjreceptacle jjis jja jjsingle jjcontact jjdevice jjwith jjno jjother
jjcontact jjdevice jjon jjthe jjsame jjyoke. jjA jjmultiple jjreceptacle jjis jja jjsingle jjdevice
jjcontaining jj(duplex) jjor jjmore jjreceptacles.
Receptacle jjoutlet: jj- jjANS-An jjoutlet jjwhere jjone jjor jjmore jjreceptacles jjare jjinstalled.
Utilization jjequipment: jj- jjANS-Equipment jjthat jjutilizes jjfor jjelectronic, jjchemical,
jjheating, jjelectric jjenergy jjlighting, jjelectromechanical, jjor jjsimilar jjpurposes.
NEC jjArticle jj210 jj- jjANS-Covers jjbranch jjcircuits jj(except jjfor jjbranch jjcircuits jjthat
jjsupply jjonly jjmotor jjloads).
