Journeyman Electrician Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Get ready for the Journeyman Electrician Exam. Study with flashcards, multiple-choice questions, and detailed explanations. Prepare effectively and ensure success on your certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

When determining branch-circuit conductors for an AC motor, which table is referenced for current values?

Table 430.247
Table 430.250
Table 430.200
Table 430.300

The correct answer is: Table 430.250

When determining the branch-circuit conductors for an AC motor, Table 430.250 is referenced for current values. This table provides the appropriate full-load current ratings for AC motors, which are essential for correctly sizing conductors to ensure they can safely handle the load without overheating. Understanding full-load current is crucial because it guides electricians in selecting the right conductor size based on the operating conditions of the motor. Using this table allows for compliance with the National Electrical Code (NEC) and helps ensure the motor operates efficiently and safely. Other tables mentioned, such as Table 430.247, relates to the maximum branch-circuit protection, while Table 430.200 deals with the selection of motor branch-circuit conductors based on the ampacity and installation conditions. These tables provide important information as well, but for determining the current values specifically required for sizing the branch-circuit conductors, Table 430.250 is the correct reference.