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Load calculations- branch and feeder circuits
1.
What is the demand load for one household range with a nameplate rating
of
11.75kW, 240V, 1Ø?: 8kW.
2. What is the load center length for a branch circuit with noncontinuous loads of
20A at 60' from the source and 50A at 125' from the source?: 106.43'
3.
What is the required circuit ampacity of a noncontinuous, single-phase load
of
8.5kW at 277V?: 30.69A
4.
What is the lighting load on a 120V circuit for six 100W incandescent lights and
four fluorescent fixtures with a ballast rating of 1.5A, all operating continuously for
8 hours per day?:
13.75A
5.
What is the total ampacity for a 120V branch circuit consisting of four duplex
receptacles rated noncontinuous duty and six duplex receptacles rated
continuous
duty?: 17.25A
6.
The load for 10' of multi-outlet assembly used to supply several loads
simul
taneously is: 1,800VA
7. Conductors must be derated when installed in conduit: on or above
rooftops
8.
What is the total load required by the NEC® for two appliance branch circuits
