OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 563 Surface mine

Subsection 563(1)

The employer must assess the impact of the equipment and the surrounding environment on safety and then select equipment that fully meets applicable standards and adequately addresses local conditions. These conditions may include temperature, humidity, gases that may be flammable, corrosive or reactive, dusts such as coal dust, metallic powders and ammonium nitrate, fire and explosion hazards and so on.

For example, an electrical switch designed for use in hazardous locations at a gas plant may not be safe for use in a hazardous location at a coal mine. Coal dust poses an additional hazard for which the switch is not designed.

Subsection 563(2)

An electrical spark can initiate an explosion of accumulated gases. This subsection requires that electrical repairs or adjustments that are done in a hazardous location only be done after
(a) the equipment is de-energized, and
(b) the worker doing the work has confirmed that no dangerous concentration of gas is present.