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

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NEC 600.21(C) permits transformers and electronic power supplies above a suspended ceiling only when which condition is met?

They rest on the ceiling tiles for ventilation They are listed for that use They are cord-and-plug connected with a 25-foot cord The ceiling is in a dwelling-unit bedroom

Correct Answer:

They are listed for that use

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