The first step in selecting suitable and effective controls for non-mechanical hazards is to understand the nature of emissions that can be released by machinery and equipment in the workplace, where those emissions collect and the way they may cause harm.
Adjustable guarding incorporates movable sections or panels of the guard and allows for material or parts to be fed into the guarded area while still preventing bodily contact. Tunnel guards provide a tunnel, aperture or chute in which material can be inserted into the machinery and equipment, but due to the restrictive design and depth of the opening, fingers, hands, arms, or the entire person is prevented from intruding into the danger area.
People who install or dismantle machinery and equipment could: • work in isolation • work on machinery and equipment at height, or over machinery and equipment to connect services, such as electricity, air or water • work in low light, or with bright directional light • access machinery and equipment from the top, sides or underneath • work with or near cranes, forklifts or rigging to lift machinery and equipment • work in confined spaces • use power tools, welders, extension leads, which present electrical hazards if damaged or wet.
Workplace managers may not have considered or recognised the need to provide similar means to gain safe access to parts of machinery and equipment at height, or in awkward locations for maintenance, repair, service or cleaning activities. Safe access at height can be broken into three categories. Each category has in common the need to provide a stable, safe platform suitable for the work to be undertaken, and to be equipped to support and retain a person within the confines of the platform.