Guarding of trailing cables.

§ 75.827 Guarding of trailing cables. (a) Guarding. (1) The high-voltage cable must be guarded in the following locations: (i) From the power center cable coupler for a distance of 10 feet inby the power center; (ii) From the entrance gland for a distance of 10 feet outby the last strain clamp on the continuous mining machine; and, (iii) At any location where the cable could be damaged by moving equipment. (2) Guarding must be constructed using nonconductive flame-resistant material or grounded metal. (b) Suspended cables and cable crossovers. When equipment must cross any portion of the cable, the cable must be either: (1) Suspended from the mine roof; or (2) Protected by a cable crossover having the following specifications: (i) A minimum length of 33 inches; (ii) A minimum width of 17 inches; (iii) A minimum height of 3 inches; (iv) A minimum cable placement area of two and one half-inches (2 1/2 ″) high by four and one-quarter inches (4 1/4 ″) wide; (v) Made of nonconductive material; (vi) Made of material with a distinctive color. The color black must not be used; and (vii) Made of material that has a minimum compressive strength of 6,400 pounds per square inch (psi). [75 FR 17549, Apr. 6, 2010]