[Code of Federal Regulations]
[Title 46, Volume 4]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR111.12-1]

[Page 220]
 
                           TITLE 46--SHIPPING
 
    CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (CONTINUED)
 
PART 111--ELECTRIC SYSTEMS--GENERAL REQUIREMENTS--Table of Contents
 
           Subpart 111.12--Generator Construction and Circuits
 
Sec. 111.12-1  Prime movers.


    (a) Prime movers must meet part 58, subpart 58.10, of this chapter, 
sections 4/5C2.15 and 4/5C2.17 of the ABS Rules for Building and 
Classing Steel Vessels and, for mobile offshore drilling units, section 
4/3.21 of the ABS Rules for Building and Classing Mobile Offshore 
Drilling Units. Additional requirements for prime movers for emergency 
generators are in part 112, subpart 112.50, of this chapter.
    (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]