AGL 2022 - ToolBox Talks - Electricity on Site

Electricity on Site

Overview This talk will cover, underground cables and overhead power lines.

Underground cables

1 Before digging, check plans provided by the local electricity company, telephone company and cable TV company.
2 Before digging, use a cable – locating device that is in good working order. Ensure you are trained to use it.
3 Assume all cables are live, unless your supervisor tells you they are dead.
4 Hand dig trial holes to expose cables, look for marker tape or tiles about the cables. Continue using the cable locator to establish exact location.
5 When exposed, protect the cable from damage and support it.
6 If the cable is accidentally damaged, keep everyone clear until the electricity company has inspected it.
7 During back-filling, ensure marker tapes or tiles are replaced.
8 If using power tools to break up concrete surfaces, avoid over penetration as the cable may be directly underneath.

REMEMBER PLAN – LOCATE – DIG


Overhead power lines

1 Treat all overhead lines as live. Don’t assume that they are only telephone wires.
2 Ensure you know the maximum clearance distances specified by the electricity company.
3 Do not bypass ‘goal posts’ barriers or other warnings.
4 Check your route is clear of overhead power lines before moving a mobile scaffold tower or metal ladder.
5 If signalling, always keep power lines in view. Guide plant under power lines where ‘goal posts’ have been erected.
6 Ensure you observe special precautions laid down by the electricity company before working under overhead lines.
7 If erecting scaffolding adjacent to power lines, ensure the poles are handled a safe distance away.
8 Don’t stack materials or operate tippers under power lines, it will reduce the safe clearance and can result in arcing.

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