Case study

Bloxham 66kv Primary Substation – Reinforcements

The Overview:

Reinforcement of 66kv Substation for NGED

Our Approach:

Our DNO team acted as the principal contractor in charge of all CDM activities on-site, working alongside the NGED project engineer. The job required Rock to upgrade an existing 66kv Substation with a new 66kv cross bay. The working conditions were extremely challenging due to the project being completed in winter. However, despite the tough conditions, all works were completed on time and to Rock’s usual high standards.

The Results:

The project was delivered in 2022 for NGED, at Bloxham 66kv substation.

The works consisted of:

  • 1 x 66kv sealing end
  • 3 x 66kv line disconnectors
  • 2 x 66kv circuit breakers
  • 2 x sets of CTs
  • New busbars throughout
  • New earthing works to all new structures
  • New stance mats
  • 3 x relay panels feed over head with new containment installed using the method of 650mm ladder racking
  • All new multicores were pulled in and terminated before the completed works were commissioned by NGED

“The project was delivered in a timely manner. All outages were met on time, and our performance resulted in further works at another Oxfordshire site.”

Ben Smith, Site Manager

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