[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2006]

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

[CITE: 46CFR111.05-11]



[Page 215]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

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