46 CFR 129.370
§ 129.370 Equipment grounding.
United States · 46 CFR — Shipping · Status: effective
Cite this
- Citation
- 46 CFR 129.370, § 129.370 Equipment grounding, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/227841
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Full text
(a) On a metallic vessel each metallic enclosure and frame of electrical equipment must be permanently grounded to the hull. On a nonmetallic vessel each enclosure and frame of electrical equipment must be bonded to each other and to a common ground by a conductor not normally carrying current.
(b) Each metallic case of instruments must be grounded. So must each secondary winding of instrument transformers.
(c) Each equipment grounding conductor must be sized to comply with section 250-95 of NEC (NFPA 70).
(d) Each nonmetallic mast and topmast must have a lightning-ground conductor.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.