OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 713 Return airway

The air used to ventilate garages, bulk oil storage areas, filling stations and transformers rated at more than 1000 kilovoltamperes must not be reused for ventilating other areas. This air becomes contaminated with various hydrocarbon vapours and other emissions and is not fit for ventilating any other area. In coal mines, efforts are continually made to avoid the addition of any explosive gases to the already hazardous environment.