Question 4111 of 1003 · California General Electrician Exam
A building has both 480Y/277-volt and 208Y/120-volt branch circuits. What is required for the ungrounded branch circuit conductors?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 4111
- C: Identification by phase or line and system at termination points
Explanation
210.5(C)(1) requires ungrounded conductors to be identified by phase or line and system at all termination, connection and splice points where more than one nominal voltage system supplies the premises. The identification method must be posted at each branch-circuit panelboard or otherwise documented in a readily available manner.
More questions: Branch Circuits, GFCI and AFCI
- 4112A white conductor in a cable assembly is used as an ungrounded conductor for a switch loop. What does the NEC require?
- 4001In a dwelling unit, GFCI protection is required for all 125-volt through 250-volt receptacles installed in which of the following locations?
- 4002A receptacle in a dwelling unit bedroom is installed 5 ft from the top inside edge of the bowl of a bar sink. Is GFCI protection required?
- 4003In a dwelling unit, receptacles within what distance of the outside edge of a bathtub or shower stall require GFCI protection?
- 4004A 240-volt, 30-ampere receptacle for an electric clothes dryer is installed in the laundry area of a single-family dwelling. Does it require GFCI protection?
- 4006Under the NEC 2023 and 2026, a 125-volt receptacle installed behind the refrigerator in a dwelling kitchen does not serve the countertop and is more than 6 ft from the sink. Is GFCI protection required?