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

Open Table
   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 12 hr. at full load.
Direct acting windlass One fourth.
Windlass with hydraulic transmission Half hour idle pump operation, followed by 14 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 112 .
Boat winches 112 .

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