2 Code Module 5 Service Ampacity n n n n n
Apartments KPE TEST WITH COMPLETE
n n n n n
SOLUTIONS n
In nan napartment nservice ncalculation nit nhas nbeen ndetermined nthat nair-conditioning
n n n n n n n n n n
nloads nare nto nbe nused nin ncalculating nthe nmain nservice ndemand nload. nThe nsum
n n n n n n n n n n n n n n
nof nall nair-conditioning nloads nshall nbe nused nin ncalculating nthe nmain nservice
n n n n n n n n n n n n
ndemand nload.
n n
True nFalse n
Rule__________
Subrule__________ n- n ncorrect nanswer- nTrue n n n n n
8-202
3
The nEMT nsize nfor ntwo, n# n300 nkcmil nconductors nand none n# n250 nkcmil nconductor
n n n n n n n n n n n n n n
n(RW90 nXLPE) n(600 nV) nis: n(UNJACKETED nCONDUCTORS):
n n n n n n n
Trade nsize n63 n(2 n½") n n n n
Trade nsize n53 n(2") n n n
Trade nsize n41 n(1 n½") n n n n
Trade nsize n78 n(3") n- n ncorrect nanswer- nTrade nsize n53 n(2")
n n n n n n n n n n n
When ncalculating nthe nDemand nfor nan napartment, nboth nelectric nspace nheating
n n n n n n n n n n
nand nair nconditioning nmust nalways nbe nadded nto nthe ntotal ndemand.
n n n n n n n n n n n
True nFalse n
Rule__________ n- n ncorrect nanswer- nFalse n n n n n
8-106
What nis nthe ndemand non nthe napartment ndwelling nunit nfeeder nfor nan nelectric
n n n n n n n n n n n n
nappliance nwith na nrating nof n2,100 nW nif nan nelectric nrange nhas nbeen nprovided
n n n n n n n n n n n n n n
nfor? n__________W n- n ncorrect nanswer- n525
n n n n n n n
The nconnected nload non na nparking nlot npanelboard nis nsupplying n'58 n' nstalls nwhich
n n n n n n n n n n n n n
nare nnot nrestricted.
n n n
Determine nthe ntotal ncalculated ndemand non nthe nFEEDER nconductors nsupplying
n n n n n n n n n
nthe npanelboard n(in nkW), nusing n15A ncircuits. nThe ncalculated nfeeder ndemand nis
n n n n n n n n n n n n
n___ nkW. n- n ncorrect nanswer- n64
n n n n n n n
, Air nconditioning nunits ncan nbe nderated nto n25% nwhen ncalculating nthe napartment
n n n n n n n n n n n
nsuite nfeeder npanel ndemand.
n n n n
True nFalse n
Rule__________ n- n ncorrect nanswer- nFalse n n n n n
8-202
A nhouse npanel nin nan napartment nbuilding nsupplies nthe nfollowing:
n n n n n n n n n
Hallway nlighting nis n2 nkW n n n n
Exit nlighting nis n0.5 nkW
n n n n
There nare n4 ndryers nat n6 nkW neach
n n n n n n n
There nare n6 nwashers nat n2.5 nkW neach
n n n n n n n
Parking nlot nlighting nis n2.5 nkW n n n n n
Determine nthe ntotal ndemand nthat nthe nabove nloads nhave non nthe nhouse npanel
n n n n n n n n n n n n
nfeeder. nThe ntotal nfeeder ndemand nis n___ nkW n- n ncorrect nanswer- n44
n n n n n n n n n n n n n
A nparking nlot npanelboard nis nsupplying n'80 n' nparking nstalls nwhich nare nrestricted
n n n n n n n n n n n n
nor ncontrolled.
n n
Determine nthe ntotal ncalculated ndemand nload n(in nkW) nfor nthe nFEEDER n n n n n n n n n n
nconductors nsupplying nthe npanelboard, nusing n15A ncircuits. nThe ncalculated
n n n n n n n n n
ndemand nload nis n___ nkW. n- n ncorrect nanswer- n45
n n n n n n n n n n
Calculate nthe nminimum nampacity nrequired nof nthe nservice nconductors nfor nthe
n n n n n n n n n n
nfollowing napartment nbuilding:
n n n
Power nsupply nis n120/240 nV., nsingle-phase, nthree-wire.
n n n n n n
There nare n10 n'Type nA' nunits nthat neach nhave n95 nsquare nmetres nof nliving narea.
n n n n n n n n n n n n n n
There nare n8 n'Type nB' nunits nthat neach nhave n85 nsquare nmetres nof nliving narea.
n n n n n n n n n n n n n n
Each nunit ncontains nthe nfollowing nloads:
n n n n n
A n12 nkW nrange
n n n
A n3 nkW nair nconditioner
n n n n
A n4 nkW nelectric nspace nheating nunit
n n n n n n
The nelectric nspace nheating nand nthe nair nconditioner ncan nnot nbe nused nat nthe
n n n n n n n n n n n n n
nsame ntime
n n
Additional nloads nnot nlocated nin nthe ndwelling nunits: n n n n n n n
Two ndryers nat n4.5 nkW neach
n n n n n
Two nwashers nat n2.0 nkW neach
n n n n n
Miscellaneous npower nof n3 nkW n n n n
2 nstalls nat n2KW nper nstall nof nelectric nvehicle nsupply nequipment.
n n n n n n n n n n
The ntotal ncalculated nservice nampacity nis n___ nA. n- n ncorrect nanswer- n607
n n n n n n n n n n n n
A n24-suite napartment nwith n24 nparking nstalls nhas n24 nunrestricted nand
n n n n n n n n n n
nuncontrolled n15A ncar nplugs.
n n n n
The ndemand nload nfor nthe n24 nreceptacles nis:
n n n n n n n
28,800 nWatts. n
43,200 nWatts. n
Apartments KPE TEST WITH COMPLETE
n n n n n
SOLUTIONS n
In nan napartment nservice ncalculation nit nhas nbeen ndetermined nthat nair-conditioning
n n n n n n n n n n
nloads nare nto nbe nused nin ncalculating nthe nmain nservice ndemand nload. nThe nsum
n n n n n n n n n n n n n n
nof nall nair-conditioning nloads nshall nbe nused nin ncalculating nthe nmain nservice
n n n n n n n n n n n n
ndemand nload.
n n
True nFalse n
Rule__________
Subrule__________ n- n ncorrect nanswer- nTrue n n n n n
8-202
3
The nEMT nsize nfor ntwo, n# n300 nkcmil nconductors nand none n# n250 nkcmil nconductor
n n n n n n n n n n n n n n
n(RW90 nXLPE) n(600 nV) nis: n(UNJACKETED nCONDUCTORS):
n n n n n n n
Trade nsize n63 n(2 n½") n n n n
Trade nsize n53 n(2") n n n
Trade nsize n41 n(1 n½") n n n n
Trade nsize n78 n(3") n- n ncorrect nanswer- nTrade nsize n53 n(2")
n n n n n n n n n n n
When ncalculating nthe nDemand nfor nan napartment, nboth nelectric nspace nheating
n n n n n n n n n n
nand nair nconditioning nmust nalways nbe nadded nto nthe ntotal ndemand.
n n n n n n n n n n n
True nFalse n
Rule__________ n- n ncorrect nanswer- nFalse n n n n n
8-106
What nis nthe ndemand non nthe napartment ndwelling nunit nfeeder nfor nan nelectric
n n n n n n n n n n n n
nappliance nwith na nrating nof n2,100 nW nif nan nelectric nrange nhas nbeen nprovided
n n n n n n n n n n n n n n
nfor? n__________W n- n ncorrect nanswer- n525
n n n n n n n
The nconnected nload non na nparking nlot npanelboard nis nsupplying n'58 n' nstalls nwhich
n n n n n n n n n n n n n
nare nnot nrestricted.
n n n
Determine nthe ntotal ncalculated ndemand non nthe nFEEDER nconductors nsupplying
n n n n n n n n n
nthe npanelboard n(in nkW), nusing n15A ncircuits. nThe ncalculated nfeeder ndemand nis
n n n n n n n n n n n n
n___ nkW. n- n ncorrect nanswer- n64
n n n n n n n
, Air nconditioning nunits ncan nbe nderated nto n25% nwhen ncalculating nthe napartment
n n n n n n n n n n n
nsuite nfeeder npanel ndemand.
n n n n
True nFalse n
Rule__________ n- n ncorrect nanswer- nFalse n n n n n
8-202
A nhouse npanel nin nan napartment nbuilding nsupplies nthe nfollowing:
n n n n n n n n n
Hallway nlighting nis n2 nkW n n n n
Exit nlighting nis n0.5 nkW
n n n n
There nare n4 ndryers nat n6 nkW neach
n n n n n n n
There nare n6 nwashers nat n2.5 nkW neach
n n n n n n n
Parking nlot nlighting nis n2.5 nkW n n n n n
Determine nthe ntotal ndemand nthat nthe nabove nloads nhave non nthe nhouse npanel
n n n n n n n n n n n n
nfeeder. nThe ntotal nfeeder ndemand nis n___ nkW n- n ncorrect nanswer- n44
n n n n n n n n n n n n n
A nparking nlot npanelboard nis nsupplying n'80 n' nparking nstalls nwhich nare nrestricted
n n n n n n n n n n n n
nor ncontrolled.
n n
Determine nthe ntotal ncalculated ndemand nload n(in nkW) nfor nthe nFEEDER n n n n n n n n n n
nconductors nsupplying nthe npanelboard, nusing n15A ncircuits. nThe ncalculated
n n n n n n n n n
ndemand nload nis n___ nkW. n- n ncorrect nanswer- n45
n n n n n n n n n n
Calculate nthe nminimum nampacity nrequired nof nthe nservice nconductors nfor nthe
n n n n n n n n n n
nfollowing napartment nbuilding:
n n n
Power nsupply nis n120/240 nV., nsingle-phase, nthree-wire.
n n n n n n
There nare n10 n'Type nA' nunits nthat neach nhave n95 nsquare nmetres nof nliving narea.
n n n n n n n n n n n n n n
There nare n8 n'Type nB' nunits nthat neach nhave n85 nsquare nmetres nof nliving narea.
n n n n n n n n n n n n n n
Each nunit ncontains nthe nfollowing nloads:
n n n n n
A n12 nkW nrange
n n n
A n3 nkW nair nconditioner
n n n n
A n4 nkW nelectric nspace nheating nunit
n n n n n n
The nelectric nspace nheating nand nthe nair nconditioner ncan nnot nbe nused nat nthe
n n n n n n n n n n n n n
nsame ntime
n n
Additional nloads nnot nlocated nin nthe ndwelling nunits: n n n n n n n
Two ndryers nat n4.5 nkW neach
n n n n n
Two nwashers nat n2.0 nkW neach
n n n n n
Miscellaneous npower nof n3 nkW n n n n
2 nstalls nat n2KW nper nstall nof nelectric nvehicle nsupply nequipment.
n n n n n n n n n n
The ntotal ncalculated nservice nampacity nis n___ nA. n- n ncorrect nanswer- n607
n n n n n n n n n n n n
A n24-suite napartment nwith n24 nparking nstalls nhas n24 nunrestricted nand
n n n n n n n n n n
nuncontrolled n15A ncar nplugs.
n n n n
The ndemand nload nfor nthe n24 nreceptacles nis:
n n n n n n n
28,800 nWatts. n
43,200 nWatts. n
