30 CFR Part 57Public Domain
§ 57.22312 — Distribution boxes (II-A and V-A mines)
Subpart T — Safety Standards for Methane in Metal and Nonmetal Mines
Distribution boxes containing short circuit protection for trailing cables of approved equipment shall be approved by MSHA under 30 CFR part 18.
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.