Ausgrid crews are in the final stages of replacing more than 2 km of high voltage transmission cable to power 15,000 homes and businesses across Sydney's North Shore.
The existing 33-kV cables and wires were installed in the 1960s to connect the Crows Nest zone substation to a major supply point in Artarmon.
Horizontal directional drilling specialists recently finished drilling two 600-mm-wide tunnels under the North Shore rail line in Artarmon as part of the 10-month replacement project. The 150-m long tunnels between Ella Street and Naremburn Park in Artarmon will hold conduit pipes to carry six new 132-kV cables.
Ausgrid General Manager Transmission Brett Hooper said the next stage of work included pulling the new 132-kV cables through the conduits.
“The existing cables have served the North Shore community well for half a century and are now approaching the time for replacement,” Hooper said.
“Substation technicians are also installing equipment in the recently completed new substation building adjoining the existing substation built in the 1930s. The replacement of ageing electrical infrastructure across the North Shore will help meet the electricity needs of the area.”
Temporary road surfaces along the cable route will be permanently restored once all work on the project is complete.