Police are warning would-be thieves that they are putting themselves and others at risk by stealing copper wiring.
The warning comes after a number of cable thefts, including one from a substation near Bolsover.
Since Saturday, April 26 police in and around Chesterfield have had three reports of the theft of copper cabling.
The most recent took place at just after 6.30am on Tuesday, April 29 at the former Coalite site on Buttermilk Lane, Bolsover.
An electricity substation had been broken into and copper wiring stolen.
In Duckmanton, approximately 200 metres of copper cabling was stolen sometime between Saturday, April 26 and Monday, April 28 from a firm at the M1 Commerce Park on Markham Lane.
A 30-year-old man from Bolsover was arrested on suspicion of theft in connection with the incidents in Bolsover and Duckmanton and has been bailed pending further enquiries.
Community Safety Inspector Russell Dakin said: “Cutting into any piping where mains services are connected is very dangerous, and by doing so offenders are exposing themselves and others to possible serious injury or worse.”