The result based on lighting survey
The result based on lighting survey – OHSA (Occupational Health Services Australia) that, lighting systems should be considered at the design and installation phases should create a suitable light work environment, provide a safe and comfortable visual environment.
A value of 160 lux is recommended for general work areas. Office environments require more lighting, for example Moderately Difficult Visual Tasks (such as routine office work) should have a range of 320-400 lux.
Access and stair lighting
Access and stair lighting is necessary for workers to be able to move around the workplace in a safe manner.A value of 40 lux is recommended for walkways and access areas.This level should be considered as a minimum value and in certain circumstances higher levels may be required.
Emergency lighting is important to assist workers to exit the workplace in an emergency situation.
Section 2.7 of AS/NZS 3012:2010 Electrical installation – Construction and demolition sites, requires sufficient battery-powered lighting to be installed in stairways, passageways and next to switchboards. This allows for safe access and exit from the area if there is a loss of power and there is not enough natural lighting.
Internally illuminated emergency evacuation signage may be used as part of an existing emergency lighting system. The system of lighting must have battery backup light fittings capable of illuminating the exit signage and provide clear directions for safe exit from the workplace in the event of power failure.
Construction and demolition sites also requires minimum emergency lighting levels of 20 lux to allow for safe egress from the lift shaft.
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