OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 6 Cranes, Hoists and Lifting Devices

Section 98 Protective enclosure

A tower hoist is a materials-only hoist in which the platform on which loads are placed runs inside a framed tower. The platform is raised and lowered by a cable, drum or a rack and pinion drive system (see Figure 6.36).

Figure 6.36 Example of a tower hoist

Section 98(a)

The walls must be sufficient height and strength to prevent accidental contact with the tower or the hoist machinery. The fencing should be at least 600 millimetres from the sides of the tower.

Section 98(b)

The enclosure should be at least 600 millimetres from the sides of the shaft.

Section 98(c)

The use of an interlock system with each landing gate is required to ensure that workers are protected against falling into the open shaft.

Sections 98(d) to (f)

No explanation required.