[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 46CFR111.12-1]



[Page 218]

 

                           TITLE 46--SHIPPING

 

   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (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]