Branch Circuits & WiringQuestion 233 of 521
To reduce voltage drop on a long branch-circuit run without changing the load, what is the most effective method?
a.Increase the conductor cross-sectional area (more circular mils)
b.Increase the overcurrent device rating
c.Lower the conductor insulation temperature rating
d.Add additional terminations along the run
Explanation
Voltage drop is inversely proportional to conductor circular mils, so using a larger conductor is the direct remedy. Increasing the breaker or changing insulation rating does not lower voltage drop, and extra terminations only add resistance and points of failure.
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