In some cases, people exposed to these hazards may not show signs of injury or illness for years. Where people are at risk of injury due to harmful emissions from machinery and equipment, the emissions should be controlled at their source.
Where access to the hazard is infrequent, the installation of a fitted guard, that can be removed by use of a tool, may be an acceptable control, where the tool to remove the barrier or guard is not normally available to the operator.
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.
A stable work platform, suited to the nature of the work that allows for good posture relative to the work performed, sure footing, safe environment and fall prevention (if a fall may occur), is a basic requirement. For example, cooling towers on building roofs may have poor access, yet must be attended by a service person at predictable times for water treatment, chemical dosing or monitoring of automated dosing equipment.