§ 111.12-1 - Prime movers.

§ 111.12-1 Prime movers. -

Cross Reference

Link to an amendment published at 88 FR 16360, Mar. 16, 2023.

(a)

Prime movers must meet

section

§ 58.

01–5

01–5 and

46 CFR

subpart 58.10 of this chapter except that those for mobile offshore drilling units must meet

Part 4, Chapter 3, sections 4

6–1–3/3.

17

3 and

4

6–1–3/3.

19

5 of the ABS

MODU

MOU Rules (incorporated by reference; see

46 CFR

§ 110.

10–1

10–1 of this subchapter). Further requirements for emergency generator prime movers are in

46 CFR

subpart 112.50

.

(b) Each generator prime mover must have an overspeed device that is independent of the normal operating governor and adjusted so that the speed cannot exceed the maximum rated speed by more than 15 percent.

(c) Each prime mover must shut down automatically upon loss of lubricating pressure to the generator bearings if the generator is directly coupled to the engine. If the generator is operating from a power take-off, such as a shaft driven generator on a main propulsion engine, the generator must automatically declutch (disconnect) from the prime mover upon loss of lubricating pressure to generator bearings.

[CGD 94–108, 61 FR 28277, June 4, 1996; 61 FR 33045, June 26, 1996, as amended at 62 FR 23907, May 1, 1997; USCG–2003–16630, 73 FR 65196, Oct. 31, 2008

of this subchapter.

[USCG–2020–0075, 88 FR 16360, Mar. 16, 2023]