Question

Determine the size of conductors required to supply a 75 amp non-motor load. The device terminations are rated at 75˚C?

a. use copper conductors
b. conductor
c. insulation
d.type is THHN.

Answer 1

To supply a 75 amp non-motor load with terminations rated at 75˚C, copper conductors of at least AWG 3 size and THHN type are required.

Step-by-step explanation:

To determine the size of conductors required to supply a 75 amp non-motor load, we need to consider the ampacity and temperature ratings of the conductors.

For copper conductors, we can use the ampacity values provided by the National Electrical Code (NEC). According to NEC, for a 75 amp non-motor load with terminations rated at 75˚C, the minimum size of the conductor required would be AWG 3.

The type of conductor required for this load would be THHN (Thermoplastic High Heat-resistant Nylon-coated).