Queensland Consolidated Regulations

COAL MINING SAFETY AND HEALTH REGULATION 2017 - REG 114

114 Electrical protection for mobile or transportable equipment

(1) This section applies to mobile or transportable equipment used at a surface mine and supplied with electricity by a reeling or trailing cable.

(2) If the equipment does not have a local earthing system, the site senior executive for the mine must ensure the cable has an earth continuity monitoring system that cuts off the electricity supply immediately after an earth continuity fault is detected in the cable or equipment.

(3) Subsection (2) does not apply if the cable—

(a) is a low voltage cable; and

(b) has earth leakage current protection of not more than 30mA sensitivity; and

(c) has individually screened cores; and

(d) has no joining plugs or sockets.

(4) The site senior executive must ensure the electricity source for the equipment has an earth fault current limitation device that limits prospective touch voltage to within acceptable limits.

(5) Subsection (4) does not apply if the equipment is low voltage equipment and persons at the mine are otherwise protected adequately against injury from indirect contact with electricity.