[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: 30CFR18.94]



[Page 128]

 

                       TITLE 30--MINERAL RESOURCES

 

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

 

PART 18_ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES--Table of 

Contents

 

   Subpart E_Field Approval of Electrically Operated Mining Equipment

 

Sec.  18.94  Application for field approval; contents of application.



    (a) Each application for field approval shall, except as provided in 

Sec.  18.93(b), include the following information with respect to the 

electrically operated machine for which field approval is sought:

    (1) The trade name and the certification number or other means of 

identifying any explosion-proof compartment or intrinsically-safe 

component installed on the machine for which a prior approval or 

certification has been issued under the provisions of Bureau of Mines 

Schedules 2D, 2E, 2F, or 2G.

    (2) The trade name and the flame-resistance acceptance or approval 

number of any cable, cord, hose, or conveyor belt installed on the 

machine for which prior acceptance or approval by MSHA has been issued.

    (b) Each application for field approval shall be accompanied by:

    (1) If the machine is constructed or assembled entirely from 

components which have been certified or removed from machines approved 

under Bureau of Mines Schedule 2D, 2E, 2F, or 2G, photographs or a 

single layout drawing which clearly depicts and identifies each of the 

permissible components and its location on the machine.

    (2) If the machine contains one or more components required to be 

permissible which has not been approved or certified under Bureau of 

Mines Schedule 2D, 2E, 2F, or 2G, a single layout drawing which clearly 

identifies all of the components from which it was assembled.

    (3) All applications shall include specifications for:

    (i) Overcurrent protection of motors;

    (ii) All wiring between components, including mechanical protection 

such as hose conduit and clamps;

    (iii) Portable trailing cable for use with the machine, including 

the type, length, diameter, and number and size of conductors;

    (iv) Insulated strain clamp for machine end of portable trailing 

cable;

    (v) Short-circuit protection to be provided at outby end of portable 

trailing cable.



[33 FR 4660, Mar. 19, 1968, as amended at 57 FR 61223, Dec. 23, 1992]