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Dubbo to Narromine 132kV Transmission Line

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Project Details

Client: TransGrid

The Dubbo to Narromine project was a 132kV Overhead Transmission Line construction project between Dubbo West Zone Substation and Narromine, where the existing 66kV feeder (designation 808N) from Dubbo West Zone Substation to Narromine was upgraded to 132kV by removing the old line and replacing it with the new construction in the same easement.

The works included 29 kilometres of dismantling and removing existing 66kV line infrastructure, and then the rebuild of the existing 66kV Transmission Line to a 132kV Overhead Transmission line. This included the installation of approximately 120 concrete poles. This involved a lot of hurdles to protect existing power lines and needed to be put up under outage conditions.

This project included road crossings and crossings over existing powerline feeders, as well as many heritage areas, all of which were successfully negotiated and any obstacles were crossed without incident.

This project was successfully completed delivered to specification and within time constraints.

Key Challenges:
  • 29 kms of dismantling and removing existing 66kV line infrastructure
  • Rebuild of existing 66kV Transmission Line to a 132kV Overhead Transmission line and construction of 120 concrete poles
  • Road crossings over existing powerline feeders, as well as many heritage areas

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