30 CFR Part 57Public Domain
§ 57.12012 — Bare signal wires
Subpart K — Electricity
The potential on bare signal wires accessible to contact by persons shall not exceed 48 volts.
Public Domain: 30 CFR Part 57 (MSHA Safety and Health Standards — Underground Metal and Nonmetal Mines) is a U.S. government publication and is not subject to copyright. Text extracted from the official source ↗. Figures are served from the eCFR; if one does not load, use the link in its place.