Utility giant Western Power Distribution has apologised for a two-hour power cut affecting about 50 homes and businesses in Spalding.
Electricity supplies in the town fluctuated wildly during a two-hour spell from about 11.40am on Tuesday.
A Western Power Distribution spokesman blamed the fault on faulty fuses along the firm’s underground network.
The spokesman said: “There was a fault at the underground network but engineers have replaced fuses at the local station.
“About 50 customers experienced their power going on and off over a two-hour period on Tuesday but everything was done to restore power to our customers and we apologise for any inconvenience caused.”