Question 10053 of 749 · Maryland Journeyperson Electrician Exam
A PV system has dc circuits operating at 80 volts or more between any two conductors. What protection is required?
Exactly one answer is correct.
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Correct answer to question 10053
- C: Listed dc arc-fault circuit protection
Explanation
PV systems with dc circuits operating at 80 volts or greater between any two conductors must be protected by a listed PV arc-fault circuit interrupter or equivalent system. DC arcs are hard to extinguish and are a known cause of rooftop fires.
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