---
kind: "section"
citation: "30 C.F.R. § 77.515"
title: "30"
number: "77.515"
heading: "Bare signal or control wires; voltage."
url: "https://uscodex.org/cfr/30/77.515"
---

# §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.


## Notes

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 36 FR 9364, May 22, 1971, unless otherwise noted.