Field answer
Direct answer
A tight staple can damage cable insulation or conductor spacing and may contribute to arcing or fault conditions that trip an AFCI. Use the current equipment manual, code book, employer procedure, and qualified supervision before applying this on live work.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as AFCI troubleshooting and drill a smaller set before returning to mixed practice.
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