Question 3051 of 749 · Maryland Journeyperson Electrician Exam
A circuit breaker used to switch 120 volt fluorescent lighting on a regular basis must be marked with which designation?
Exactly one answer is correct.
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Correct answer to question 3051
- A: SWD or HID
Explanation
Breakers used as switches in 120 volt and 277 volt fluorescent lighting circuits must be listed and marked SWD or HID. HID breakers may also switch high-intensity discharge lighting. See 240.83(D).
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