Attempted Copper Theft from Scottish Power’s Westfield Electrical substation in Ballingry on 7th June resulted in a power failure
One incident last year from a substation in Greenock resulted in two serious house fires and more than 200 properties suffering a blackout.
In 2011, a botched cable theft in Glasgow saw a 30-minute power outage for 50,000 properties in the city’s south side.
Mr Jefferson added: “We continue to increase our own security measures, and work closely with the police and other industries affected by this crime.
“I’d urge anyone who spots suspicious behaviour near our power lines to report what they have seen to the police.”