46 C.F.R. Subpart 111.25—Motors


Title 46 - Shipping


Title 46: Shipping
PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS

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Subpart 111.25—Motors

§ 111.25-1   General requirements.

The requirements for generators contained in §111.12–5 apply to motors.

[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 62 FR 23908, May 1, 1997]

§ 111.25-5   Marking.

(a) Each motor must have a marking or nameplate that meets either article 430–7 of the NEC or IEC 92–301 (clause 16).

(b) The marking or nameplate for each motor that is in a corrosive location must be corrosion-resistant.

[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28278, June 4, 1996]

§ 111.25-15   Duty cycle.

Each motor must be rated for continuous duty, except a motor for an application listed in Table 111.25–15 or a similar duty must meet the minimum short-time rating stated in the table.

                             Table 111.25-15------------------------------------------------------------------------                                            Minimum short-time rating of            Application of motor                   motor, in hours------------------------------------------------------------------------Deck winch and direct acting capstan......  Half.Deck winch with hydraulic transmission....  Continuous at no load                                             followed by \1/2\ hr. at                                             full load.Direct acting windlass....................  One fourth.Windlass with hydraulic transmission......  Half hour idle pump                                             operation, followed by \1/                                             4\ hr. full load operation.Steering gear, direct acting..............  One.Steering gear, indirect drive.............  Continuous operation at 15                                             pct. load followed by 1 hr.                                             at full load.Watertight door operators.................  \1/12\.Boat winches..............................  \1/12\.------------------------------------------------------------------------

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