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Ground fault protection of equipment shall be provided for solidly grounded
wye electrical services of more than 150 volts-to-ground, but not exceeding
600V phase-to-phase for each service
disconnecting means rated __________
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1 1000A 2 branch circuit
3 not less than 1 1/4 in. from 4 1,000,000 cm
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Terms in this set (150)
That portion of a wiring system extending beyond the
branch circuit
final overcurrent device is called the:
The final sum of the computed loads, based on the
Calculated load
minimum code requirements, is the
As compared to #10, a #8 wire of the same Iength has
Resistance
less:
One circular mil is the area of a circle whose diameter
0.001 inch
is:
A round bus-bar one inch in diameter, has a circular
1,000,000 cm
mil area of:
A copper wire with twice the diameter of another wire
four times as great
has a current carrying capacity:
The specific resistance of copper wire @ 20° C in
10.4
ohms per circular mil ft. is
Conductance of an electric circuit is that property that
permit current to flow
will:
1O ohms The equivalent value of 0.1 mho is
directly proportional to its The resistance of copper wire is:
length
The portion of a wiring system between a point of
Feeder distribution and the branch circuit overcurrent device
is
GFCI protection at a carnival is not required for
locking equipment at circuit if the receptacle is of the
____________type