Question 4048 of 1033 · Washington 01 Journey Level Electrician Exam
A dwelling unit fire alarm system is supplied by an individual branch circuit run in metal raceway in accordance with Article 760. Is AFCI protection required for this circuit?
Exactly one answer is correct.
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Correct answer to question 4048
- D: No, an exception permits omitting AFCI for this circuit
Explanation
AFCI protection is not required for an individual branch circuit that supplies a fire alarm system when it is run in a metal raceway, metal-clad cable or a similar wiring method as described in Article 760 (see 760.41(B) and 760.121(B)). In the 2026 edition this appears as Exception No. 1 to 210.12(B). The exception avoids nuisance tripping that could disable the alarm.
More questions: Branch Circuits, GFCI and AFCI
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- 4052What branch circuit is required in a dwelling unit to supply the laundry receptacle outlets?
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- 4054A 20-ampere branch circuit supplies only one bathroom of a dwelling. Which of the following may it also supply?