Case Studies

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Case Study – Beauly – 132kV Power Cable Circuits

Nexus Power Ltd was contracted by J Murphy & Sons to prepare and install 24 No. Prysmian Outdoor Cable Sealing Ends at Beauly Substation, Inverness. The project consists of an extension and reinforcement to the existing Beauly Substation, as part of the main Beauly to Denny double circuit 400kV overhead line project. This project requires the rationalisation and diversion works including replacement of sections of 132kV, 33kV and11kV lines with underground cables at various locations.

The 132kV power cable was 630mm2 Al conductor with a lead sheath. The terminations were composite design incorporating a welded conductor connection. The jointing and specialist welding techniques was completed by our own team of skilled joiners who are approved and certified to joint cables up to 275kV. Nexus Power Ltd also carried out installation of Surge Arrestors and completed the earthing and bonding arrangements including fitting and terminating link boxes.

Key Facts

  • Term of contract: November 2012
  • Location: Beauly, Inverness-shire
  • Client: J Murphy & Sons Ltd.

Services:

  • Installation of 24 No. Prysmian
  • Outdoor cable sealing ends
  • Installation of link boxes
  • Installation of surge arresters
  • Cable sheath testing

Case Study – Glasgow East – 132kV Power Cable Circuits

Nexus Power Ltd was contracted by Enterprise PLC to undertake132kV jointing and terminating works on this major reinforcement project commissioned by Scottish Power. The project scope comprised installation of new switchgear within existing substations located at Dalmarnock. St Andrew’s Cross and Carntyne. As part of the scope a new 5km XPLE double circuit was installed between Dalmarnock and St Andrews cross, and 1.6km of XPLE cables between Dalmarnock and Carntyne Substations.

The 132kV power cable and accessories was manufactured and supplied by NKT cables. The cable conductor was sized at 800mm2 AL with a seamless aluminium welded sheath. Intermediate jointing and terminating of various NKT accessories, including cross-bonded joints and GIS Terminations, was completed by Nexus Power Ltd’s team of skilled jointers who approved and certified to joint cables up to 275kV. Nexus Power Ltd also carried out the installation of associated 33kV circuits and earthing and bonding arrangements for the 132kV circuits including fitting and terminating cross-bonded Fully fitted and equipped Nexus Power Ltd jointing vehicles and gantry mounted link boxes.

Key Facts

  • Term of contract: Jan 2012-Nov 2012
  • Location: Glasgow
  • Client: Enterprise Plc

Services:

  • Installation of 60 No. NKT 132kV Joints
  • Installation of 30 No. NKT 132kV GIS terminations
  • Installation of 24 No. NKT 132kV ODCSE
  • Installation of link boxes
  • Installation of 48 33kV Joints
  • Cable sheath testing

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