NM CID ES-1 Practice Questions - New Mexico CID ES-1 Electrical Signs And Outline Lighting Examination Exam

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A listed 15,000-volt midpoint-referenced neon transformer with field-installed GTO to remote skeleton tubing is proposed without secondary-circuit ground-fault protection. Does NEC 600.23(B) permit this?

Yes, because all neon transformers are exempt from SGFP No, because the 7500-volt isolated-secondary exception is exceeded and the secondary is field-wired Yes, if the primary is GFCI-protected Yes, if the transformer is installed in an attic

Correct Answer:

No, because the 7500-volt isolated-secondary exception is exceeded and the secondary is field-wired

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