CFR › Title 46 › Part 183 › §183.32446 CFR §183.324Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)A dual voltage generator installed on a vessel shall be of the grounded type, where:(1)The neutral of a dual voltage system must be solidly connected at the switchboard's neutral bus; and(2)The neutral bus shall be connected to ground.(b)The neutral of a dual voltage system must be accessible for checking the insulation resistance of the generator to ground before the generator is connected to the bus.(c)Ground detection must be provided that:(1)For an alternating current system, meets § 111.05-27 in subchapter J of this chapter; and(2)For a direct current system, meets § 111.05-29 in subchapter J of this chapter.