OHS Code

Published Date: July 01, 2009
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Part 36 Mining

Section 738 Combustible gas detector

(1) An employer must ensure that a coal cutting machine is equipped with a combustible gas detector.

(2) A worker operating a coal cutting machine must keep the combustible gas detector operating at all times.

(3) An employer must ensure that the sensing device of a combustible gas detector is installed

(a) as close to the cutting head as reasonably practicable, and

(b) not more than 3 metres from the cutting head.

(4) Despite subsection (3), the Director may approve a distance of more than 3 metres from the cutting head.

(5) An employer must ensure that the combustible gas detector

(a) Repealed,

(b) has a distinct and separate visible or audible warning that is activated if the level of flammable gas reaches 20 percent of the lower explosive limit, and

(c) automatically cuts off power to the cutting head if the level of flammable gas reaches 25 percent of the lower explosive limit.

(6) If power to the cutting head is cut off, the operator must back the coal cutting machine out of the face and turn off the power to the machine.