46 C.F.R. § 111.05-15 Neutral grounding.
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(a) Each propulsion, power, lighting, or distribution system having a neutral bus or conductor must have the neutral grounded. (b) The neutral of a dual-voltage system must be solidly grounded at the generator switchboard.
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PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
Subpart 111.05—Equipment Ground, Ground Detection, and Grounded Systems
§ 111.05-15 Neutral grounding.
