StacksVerified U.S. regulatory reference

30 CFR §75.702-1

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Under this subpart no method other than grounding may be used to ensure against a difference in potential between metallic sheaths, armors and conduits, enclosing power conductors and frames, casings and metal enclosures of electric equipment, and the earth, unless approved by an authorized representative of the Secretary.