The role of a spotter is to warn plant operators in the proximity of overhead powerlines in order to minimise the risk of electrocution,along with close vicinity to services such as underground power, water, sewerage and communication cables.

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A spotter must be used when working inside specified clearances near overhead powerlines and is required for each item of plant or equipment operating in the vicinity of overhead electrical lines on any work site.

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When work is between 3m and 6.4m (NO GO ZONES) a qualified spotter  is required.

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Towers are between 8 to 10 metres.