[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: 30CFR18.36]



[Page 106]

 

                       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 B_Construction and Design Requirements

 

Sec.  18.36  Cables between machine components.



    (a) Cables between machine components shall have: (1) Adequate 

current-carrying capacity for the loads involved, (2) short-circuit 

protection, (3) insulation compatible with the impressed voltage, and 

(4) flame-resistant properties unless totally enclosed within a flame-

resistant hose conduit or other flame-resistant material.

    (b) Cables between machine components shall be: (1) Clamped in place 

to prevent undue movement, (2) protected from mechanical damage by 

position, flame-resistant hose conduit, metal tubing, or troughs 

(flexible or threaded rigid metal conduit will not be acceptable), (3) 

isolated from hydraulic lines, and (4) protected from abrasion by 

removing all sharp edges which they might contact.

    (c) Cables (cords) for remote-control circuits extending from 

permissible equipment will be exempted from the requirements of conduit 

enclosure provided the total electrical energy carried is intrinsically 

safe or that the cables are constructed with heavy jackets, the sizes of 

which are stated in Table 6 of Appendix I. Cables (cords) provided with 

hose-conduit protection shall have a tensile strength not less than No. 

16 (AWG) three-conductor, type SO cord. (Reference: 7.7.7 IPCEA Pub. No. 

S-19-81, Fourth Edition.) Cables (cords) constructed with heavy jackets 

shall consist of conductors not smaller than No. 14 (AWG) regardless of 

the number of conductors.