Question
For primary protection of the 230/400 V AC mains, what minimum nominal discharge current (10/350 us) is required per conductor?
Answer
C — 12.5 kA.
Correct: at least 12.5 kA (10/350 us) per conductor is required for the mains.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.2.5 kA.
- B.5 kA.
- C.12.5 kA.✓
- D.25 kA.
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