§ 75.827. Guarding of trailing cables.
201 words·~1 min read·
/us/cfr/t30/s§ 75.827·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(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). \[75 FR 17549, Apr. 6, 2010\]