Question

An overhead wire set up outside operates at 600 volts nominal or less and is NOT supported on a messenger wire. The length of the span is 60 ft. What's the smallest size copper wire allowed?

Answer 1

The smallest size copper wire allowed for the overhead wire is 10-gauge.

Step-by-step explanation:

The size of a copper wire is usually determined by its gauge. In this case, since the wire is not supported on a messenger wire, we can refer to the American Wire Gauge (AWG) system to determine the smallest size copper wire allowed. According to the AWG system, a 10-gauge wire has a diameter of 2.588 mm. Therefore, the smallest size copper wire allowed would be 10-gauge.