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132kV Network Pinch Points

Client: North West Distribution Network Operator (DNO)

Outline Project description

4No 132kV circuits routed from 275kV substation via cable bridge across river and canal had been identified as being at high risk to potential loss of customer supply if vandalised.

DNO had given this project high priority to facilitate timely removal of circuits on cable bridge and replacement with underground circuits as a priority

EDES involvement

Cable design from first principles for new cable route installed by directional drilling under existing 275kV substation, river and canal.

Design work includes determination of all parameters for :

  • hydraulic design of oil-filled cable system
  • cable pulling tensions
  • topography and profiles
  • circuit rating decommissioning of bridge and safe expulsion of retained oil-filled cable sections

edes 132kV network pinch pointsDesign involvement also included:

  • production of project budgets,
  • design and production of specifications for procurement of cables and ancillary components, for cable installation and decommissioning works


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