Electrical Level 3 Module 1 Load Calculations and
Branch Feeder Circuits 2025 update questions
and answers 100% accurate
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Terms in this set (25)
According to the NEC®, 3
the ampacity of branch
circuit conductors must be
derated when there are
more than how many
current-carrying
conductors in a raceway?
Air conditioning 225%
overcurrent protective
devices can never exceed
what percentage of the
motor-rated load current
or the branch circuit
selection current
(whichever is greater)?
Conductors must be on or above rooftops
derated when installed in
conduit
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, 5/5/25, 7:13 PM Electrical Level 3 Module 1 Load Calculations and Branch Feeder Circuits 2025 update questions and answers 100% accurate Flash…
Continuous loads are 80%
calculated at what
percentage of the
maximum current rating of
the overcurrent device?
For a given load and 3%
length, the branch circuit
voltage drop should not
exceed
For resistance welders, the 300%
rating for the overcurrent
protection device should
not exceed what
percentage of the primary
current rating of the
welder?
Show window lighting is 125%
calculated at 200VA per
linear foot plus
The allowable ampacity 50%
for eleven No. 12 THHN
copper conductors in a
cable must be adjusted by
The load for 10' of multi- 1,800VA
outlet assembly used to
supply several loads
simultaneously is
The maximum size dual- 100A
element fuse for a 40hp,
3Ø, 460V motor with a
Design Letter D is
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