OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 719 Fans

This Part sets minimum requirements for ventilating an underground coal mine and providing a safe environment. The required measurements of pressure provide invaluable information about conditions in the mine. A sudden increase in pressure may indicate a sudden release of methane from the coal face, a blast of air from the gob area due to roof breakage, or problems with control devices underground. Similarly, a decrease in pressure may indicate a substantial leak.

To ensure the integrity of the system and the health and safety of underground workers, redundancy of both the fan and its power supply is required.

Keeping a record of ventilating pressures is mandatory.