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Emergency work to restore the power

May 2018


On the 18th of April 2018 Electrio was asked to investigate the failing of supply at the Gregory Lorry workshop building in Cornwall. Upon visiting, we soon determined that the fault lay somewhere along a 230 metre underground run of 400mm SWA.

To ensure a continuous power supply we installed a temporary generator with the assistance of Power Electrics, who quickly responded within a few hours. Their rapid response allowed us to reinstall supply back to the workshops so they could remain fully functioning.

20180429_074150294_iOS.jpgTo help us detect the area where the fault was specialist electronic scanning equipment was deployed over the weekend. Once located further confirmation, using the Murray Loop Test Formula, located the fault to within a metre so we could expose the faulty section of cable.

The damage to the cable occured during installation of further ground works, when it was not repaired correctly thereby allowing water penetration over the subsequent years. During the course of our inspection we also identified a further damaged section of cable where the cable had been resting on a rock for many years, which caused the armour to breakdown.

Our team installed a new section of 400mm SWA cable with two clear joints. With the additional help of a specialist who assisted with electrical testing services, we were able to deliver a professional solution which saved the client many thousands of pounds in additional civil works. Our quick response meant they had a new electrical supply plus could carry on working whilst we carried out essential repairs. 

Filed under: Emergency

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“Special thanks for the last push over the weekend to complete all of our tasks. Please pass on our thanks to all of your teams, you have done us proud in the project department. Well done.”

Dairy Crest Limited

“Clarks Distribution Centre, this job was a great team effort and I am grateful to your Guys for being practical and flexible in what can be a difficult environment. We will be keeping your details on record for future reference and thanks again for all your hard work in bring the LED project to a successful completion ”

Group head of facilities Management - Clarks

“I was very impressed with the dedication and commitment of your staff when carrying out the works to a very high standard in very difficult circumstances i.e. reduced working period, additional works and having to work out of sequence to facilitate other trades. I can only thank you again and ask that you pass this on to all of your team. I do not know how you managed to achieve it, but you did.”

Building Officer, North Bristol NHS Trust

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