T&D World Magazine

National Grid Requires Road Closing for 400-kV Overhead Line Rewiring

National Grid is advising residents and motorists of forthcoming temporary traffic management measures as part of an ongoing £50 million project to upgrade and refurbish a major overhead power line running through Norfolk, UK.

National Grid is carrying out work on an eight-month project to rewire the 52-mi (84km) high-voltage line, running between Norwich and Walpole, near Wisbech. Engineers will renew the conductors (wires) and fittings and carry out strengthening work on some of the 224 pylons that carry the wires.

Project Manager Simon Chandler said: “This work will help to ensure that our electricity supply continues to serve us safely, reliably and efficiently for decades to come, securing our energy supply for future generations.

“We apologize for any inconvenience caused, but the road and lane closures are essential for the safety of the public and our workforce. We will make every effort to complete the work as safely, quickly and efficiently as possible.”

The 400-kV power line was built in the early 1960s and now needs refurbishing. The work will enable National Grid to increase the capacity of the line and the network in East Anglia to secure future energy supplies. The project is being carried out by National Grid, leading an electricity alliance with Balfour Beatty.

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