46 CFR 111.70-1

§ 111.70-1 General.

United States · 46 CFR — Shipping · Status: effective

Cite this

Citation: 46 CFR 111.70-1, § 111.70-1 General, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/227116
Permanent ID: ys:prov:227116@1
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Full text

(a) Each motor circuit, controller, and protection must meet the requirements of sections 4-8-2/9.17, 4-8-4/9.5 and 4-8-3/5 of ABS Marine Vessel Rules; sections 6-1-7/9.9 and 6-1-7/9.15 of the ABS MOU Rules; or IEC 60092-301:1980 (all three standards incorporated by reference; see 46 CFR 110.10-1), as appropriate, except for the following circuits: (1) Each steering gear motor circuit and protection must meet part 58, subpart 58.25, of this chapter. (2) Each propulsion motor circuit and protection must meet subpart 111.35 of this part. (b) In ungrounded three-phase alternating current systems, only two motor-running protective devices (overload coil or heater type relay within the motor and controller) need be used in any two ungrounded conductors, except when a wye-delta or a delta-wye transformer is used. (c) The motor disconnecting means must be an externally operable switch or circuit breaker.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.