Case Studies

Approved Power Services & Northumberland Primary School celebrates National Road Safety Week with North Sea Link

Approved Power Services & Northumberland Primary School celebrates National Road Safety Week with North Sea Link

The team behind the world’s longest subsea electricity cable, North Sea Link, hosted a fun-packed activity day for Cambois Primary School pupils on 21 November to encourage greater understanding of road safety in line with National Road Safety Week (18-24 November 2019).North Sea Link, a partnership between National Grid and Statnett, will connect the electricity systems of the UK with Norway, allowing the sharing of renewable energy between the two countries. North Sea Link’s UK-based...

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Pentir Dinorwig 1

Pentir Dinorwig 1

Project OverviewThe 10.5km circuit extends from SF6 Gas Sealing Ends within Dinorwig Power Station along a 1.1km tunnel; it then follows the route of Llanberis Lake Railway for approx. 4km along the edge of Llyn Padarn. The cable then follows the route of the A4244 back towards Pentir Sub Station where it crosses grazing land before finally entering Pentir 400kV Sub Station and terminating at outdoor CSE’s.   Circuit 1 & 2 are made available for maintenance each year by way of...

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Mybster GT5

Mybster GT5

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Blackhillock 400kV

Blackhillock 400kV

Some neat work on the Blackhillock 400kV Project by Dave Radley and the Team.  Images show the 400kV Road Crossing in Troughing inside the Siemens Compound completed by Approved Power Services Ltd.Images looking towards the ODSE and GIS ends. 

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Nexans 132kV Cable Jointing Trade Testing

Nexans 132kV Cable Jointing Trade Testing

 Last week four of our skilled HV Technicians completed a two day trade test on 132kV Aluminium core XLPE cable with a Nexans Representative.   The Testing took part at Approved Power Services Head Office in St Helens in our designated training area. The Testing involved :Day 1Demonstrating use of DMS and Alroc AMF toolingGroove and SC TransitionDay 2Manipulate DMS to Clean 50mm Outer Sheath and Flare The Main purpose of the Testing was to demonstrate and...

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Balfour Beatty – London Power Tunnel (LPT)

Balfour Beatty – London Power Tunnel (LPT)

Project OverviewNational Grid’s London Power Tunnel Scheme embarks upon a seven-year project to rewire the capital via deep underground tunnels, in order to meet increasing electricity demand and help London access the renewable energy of the future.A new network of tunnels are being constructed between 20m and 60m deep below the road network. The tunnels carry high voltage (400kV) electricity cables and connect existing substations at Hackney; St John’s Wood; Willesden and Wimbledon...

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