Which table in the NEC is used to determine the maximum rating of the motor short circuit and ground-fault protection device (fuse or circuit breaker)?
A) Table 250.66
B) Table 310.104(A)
C) Table 430.52
D) Table 8, Chapter 9

Question

Quizplus · Accepted Answer

Table 430.52 provides the maximum rating of the motor short circuit and ground-fault protection device (fuse or circuit breaker) based on the size of the motor and the type of controller used. Table 250.66 is used for sizing grounding conductors, Table 310.104(A) is used for sizing conductors in ampacity and temperature rating, and Table 8 in Chapter 9 is for conductor properties for the electrical power system.

Which Table in the NEC Is Used to Determine the Maximum