Refurbishment of Overhead Line Circuits
Norfolk
A 33kV/11KV Refurbishment of overhead line circuits in Norfolk which comprised of the Installation of 2 x 33kV underground Ducted Circuits and 2 x 11kV underground Ducted Circuits.
Overhead Cables
Refurbishment of Overhead Line Circuits
The existing 33kV circuits were combined with the 11kV circuit as a ‘triple circuit’ configuration on a ‘H Pole’, with the 11kV line running parallel to the triple circuit line over this route.
The new installation of underground circuits also required new cabling to extend existing circuits to new termination points of Ring Main Units (RMUs) and Transformers (TXs).
The undergrounding cable trench was mainly routed through Agricultural areas and up to 1.6mts wide to accommodate the circuits.
13 x Joint bays were constructed along the route and Approximately 31,800mts of cable installed.
The project duration was approximately 1 year and was completed on time.
- 13 x Joint bays Constructed
- 31,800 Metres of Cable installed
- Trench 1.6 metres wide
Project Highlights
Integration of Triple Circuit Configuration: Successfully combined existing 33kV circuits with an 11kV circuit on 'H Pole', enhancing operational efficiency and infrastructure resilience, New Underground Circuits: Installed new underground cabling to extend circuits to new termination points of Ring Main Units (RMUs) and Transformers (TXs), improving distribution network capacity, Routing through Agricultural Areas: Constructed a trench up to 1.6 metres wide to accommodate underground circuits, navigating through agricultural landscapes with minimal disruption., Joint Bay Construction: Erected 13 Joint Bays along the route to facilitate cable jointing activities, ensuring operational continuity and reliability, Installation Milestone: Installed approximately 31,800 metres of cable, enhancing connectivity and reinforcing the distribution network & Timely Project Completion: Completed within a one-year timeframe, meeting project milestones and delivery deadlines with efficiency and precision.
Integration and Expansion of High-Voltage Circuits
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