StacksVerified U.S. regulatory reference

30 CFR §77.505

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Cables shall enter metal frames of motors, splice boxes, and electric compartments only through proper fittings. When insulated wires, other than cables, pass through metal frames, the holes shall be substantially bushed with insulated bushings.