[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR77]

[Page 644]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 77_MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK 
AREAS OF UNDERGROUND COAL MINES--Table of Contents
 
                           Subpart H_Grounding
 
Sec.  77.704  Work on high-voltage lines; deenergizing and grounding.

    High-voltage lines shall be deenergized and grounded before work is 
performed on them, except that repairs may be permitted on energized 
high-voltage lines if (a) such repairs are made by a qualified person in 
accordance with procedures and safeguards set forth in Sec. Sec.  
77.704-1 through 77.704-11 of this Subpart H as applicable, and (b) the 
operator has tested and properly maintained the protective devices 
necessary in making such repairs.