Roadworks have now appeared around the site of yesterday (Wednesday) evening's fire in an electrical inspection hatch in Mill Street.
But a spokesperson for the power company carrying out the repair work says they are aiming to have the road clear again by tomorrow afternoon.
Two crews from the town's fire station were at the scene within minutes after the blaze erupted in the hatch, near to the bus stop on Mill Street (A539) just across the road from the Bridge End pub.
It is believed the fire was preceded by a large explosion which was heard across town around 7.20pm and appears to have blown the heavy metal cover off the hatch.
As firefighters tackled the outbreak using dry foam extinguishers police directed traffic around the area.
A team from the power company was also at the scene.
The incident coincided with a power cut affecting a number of local postcode areas, including LL208EB, LL208NU, LL208NY, LL208PN, LL208RJ, LL208RQ, LL208RY, LL208RZ, LL208SA, LL208SD, LL208SE, LL208SG, LL208SH, LL208SN, LL208SW, LL208TA, LL208TF, LL208TH, LL208UE.
A power cut warning put out by power company SP Energy Systems last night said the fault would take until at least 2am this morning to rectify.
Today a note on the company's website said the power cut had been resolved.
The roadworks at the site, surrounding a large excavation where the hatch was located, have closed the pavement running behind the bus stop and are being controlled by temporary traffic lights at either end.
* A spokesperson for SP Energy Networks said: “There was a fault in an underground link box on Mill Street. Our engineers responded immediately and worked to swiftly and safely isolate the incident and restore supplies.
"Our teams are onsite replacing the link box and are working hard to ensure this is done as quickly as possible to limit disruption.
"We apologise for any inconvenience and are working with our excavation service partners to ensure the works are fully reinstated and the roadworks removed by Friday afternoon.”