OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 578 Hydraulic brakes

In the event that 50 percent of this type of hydraulic braking system fails, the equipment can still be brought safely to rest on any grade on which it may operate.

The requirements for independently acting circuits provides a greater margin of safety. If one circuit fails, the other can do the job equally well. This is an example of a typical two-level safety provision, generally referred to as safety through redundancy.

The braking system must also meet the requirements of ISO Standard 3450: 1996.