[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: 46CFR111.05-11]

[Page 217]
 
                           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. 111.05-11  Hull return.

    (a) A vessel's hull must not carry current as a conductor except for 
the following systems:
    (1) Impressed current cathodic protection systems.
    (2) Limited and locally grounded systems, such as a battery system 
for engine starting that has a one-wire system and the ground lead 
connected to the engine.
    (3) Insulation level monitoring devices if the circulation current 
does not exceed 30 milliamperes under the most unfavorable conditions.
    (4) Welding systems with hull return except vessels subject to 46 
CFR Subchapter D.