[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: 30CFR56.6602]



[Page 287]

 

                       TITLE 30--MINERAL RESOURCES

 

  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

 

PART 56_SAFETY AND HEALTH STANDARDS_SURFACE METAL AND NONMETAL MINES

--Table of Contents

 

                          Subpart E_Explosives

 

Sec.  56.6602  Static electricity dissipation during loading.



    When explosive material is loaded pneumatically into a blasthole in 

a manner that generates a static electricity hazard--

    (a) An evaluation of the potential static electricity hazard shall 

be made and any hazard shall be eliminated before loading begins;

    (b) The loading hose shall be of a semiconductive type, have a total 

of not more than 2 megohms of resistance over its entire length and not 

less than 1000 ohms of resistance per foot;

    (c) Wire-countered hoses shall not be used;

    (d) Conductive parts of the loading equipment shall be bonded and 

grounded and grounds shall not be made to other potential sources of 

extraneous electricity; and

    (e) Plastic tubes shall not be used as hole liners if the hole 

contains an electric detonator.