[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: 46CFR111.05-31]

[Page 218]
 
                           TITLE 46--SHIPPING
 
    CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (CONTINUED)
 
PART 111--ELECTRIC SYSTEMS--GENERAL REQUIREMENTS--Table of Contents
 
Subpart 111.05--Equipment Ground, Ground Detection, and Grounded Systems
 
Sec. 111.05-31  Grounding conductors for systems.

    (a) A conductor for grounding a direct-current system must be the 
larger of:
    (1) The largest conductor supplying the system; or
    (2) No. 8 AWG (8.4mm2).
    (b) A conductor for grounding the neutral of an alternating-current 
system must meet Table 111.05-31(b).

 Table 111.05-31(b)--Neutral Grounding Conductor for Alternating-Current
                                 System
------------------------------------------------------------------------
    Size of the largest generator cable or equivalent for       Size of
             parallel generators--AWG-MCM (mm2)               the system
-------------------------------------------------------------  grounding
                                                              conductor--
            Greater than               Less than or equal to   AWG(mm2)
------------------------------------------------------------------------
                                      2 (33.6)..............     8 (8.4)
2 (33.6)............................  0 (53.5)..............    6 (13.3)
0 (53.5)............................  3/0 (85.0)............    4 (21.2)
3/0 (85.0)..........................  350 MCM (177).........    2 (33.6)
350 MCM (177).......................  600 MCM (304).........    0 (53.5)
600 MCM (304).......................  1100 MCM (557)........  2/0 (67.5)
1100 MCM (557)......................  ......................  3/0 (85.0)
------------------------------------------------------------------------