About 3.50pm on May 2, machinery working on a gas pipeline near the Captains Flat 66kV line came in contact with the line causing a blackout to the Captains Flat and Braidwood areas from 3.50 to 4.41pm.

“Being aware of the hazards posed by powerlines and taking a few simple safety precautions can help reduce the number of electrical accidents and keep workers safe,” Networks Customer Service Manager Peter Longhurst said.

Prior to commencing work outdoors, Great Southern Energy recommends a hazard assessment be undertaken to determine the location of overhead and underground powerlines.

“Contact with overhead powerlines can prove fatal, and accidents can be avoided if the appropriate safety precautions are taken before commencing work outdoors,” Mr Longhurst said.

High machinery and demolition equipment should never be parked under or close to powerlines, and workers should operate in teams, with one acting as a ‘spotter’, when equipment is moved on a site.

Weather conditions should be closely monitored as power lines can sag in extreme heat, and strong winds can cause power lines to sway. Extra care should also be taken when working at dusk or dawn, or on overcast days, as the dull surface of powerlines can be difficult to detect.

If contact with overhead powerlines does occur when operating demolition or excavation machinery, operators should stay with their equipment until the power is switched off, and the electrical hazard has been removed.

“If the location of underground cables is unknown, workers should contact Great Southern Energy,” Mr Longhurst said.

Driving probes into the ground to identify the presence of underground powerlines should be avoided, as this can be extremely hazardous if accidental contact with powerlines occurs.

In a bid to reduce the number of electrical accidents and fatalities in NSW involving overhead and underground powerlines, the Electricity Association of NSW (on behalf of the NSW Electricity Supply Industry, including Great Southern Energy) is conducting a State-wide campaign featuring its safety message, Watch Out, Watch Out, There are Powerlines About.