GroundRules
46 CFR 111.25-15: -15 Duty cycle.
Where this section sits in the code
- Title 46—Shipping
- CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
- SUBCHAPTER J—ELECTRICAL ENGINEERING
- PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
- Subpart 111.25—Motors
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.
Collected 2026-08-27T02:26:22Z. Source file · JSON