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Code of Federal Regulations (Last Updated: May 6, 2024) |
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Title 46 - Shipping |
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Chapter I - Coast Guard, Department of Homeland Security |
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SubChapter J - Electrical Engineering |
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Part 111 - Electric Systems - General Requirements |
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Subpart 111.25 - Motors |
§ 111.25-15 - Duty cycle.
Latest version.
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§ 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
Application of motor Minimum short-time rating of 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.