Question 31
A $480\text{ V}$ three-phase feeder is being run to a new load center. The ungrounded conductors are $4/0 \text{ AWG}$ copper THHN. What is the minimum size of the copper Equipment Grounding Conductor (EGC) required?
Question 32
What is the maximum overcurrent protection device (OCPD) rating permitted for $10 \text{ AWG}$ copper conductors, assuming the conductors are not part of an assembly specifically listed otherwise?
Question 33
What is the function of an overcurrent protective device such as a circuit breaker?
Question 34
Which of the following is a standard ampere rating for a fuse or circuit breaker according to NEC 240.6?
Question 35
What is the maximum overcurrent protection typically allowed for 12 AWG copper THHN conductors used in a general power branch circuit?