U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 30Chapter IPart 77Subpart F - Subpart F—Electrical Equipment—General
View all text of Subpart F [§ 77.500 - § 77.516]
§ 77.515 - Bare signal or control wires; voltage.

The voltage on bare signal or control wires accessible to personal contact shall not exceed 40 volts.

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