The scope of works includes the erection and installation of 342 concrete poles to replace aging wooden poles at locations between Coffs Harbour substation and Koolkhan substation. Zinfra crews will then swing over existing Panther conductor and an OPGW earthwire, and dismantle and remove existing transmission line structures. The works are expected to be carried out with extended outages of 2-3 week duration, with a 72 hour recall.
An innovative and proven methodology was proposed by Zinfra’s bid team to cater to outage constraints required for expected high load conditions during summer and winter.
The team proposed 60 LV/MV overhead line crossings in energised conditions which provide TransGrid with the benefits of reduced resource requirements, reduced costs, removal of outage cancellation risks and minimal repeat visits to the site to finalise outages.
Zinfra’s Business Development Manager, Barney Manga, and the bid team worked collaboratively to develop strategies, source competitive pricing, prepare deliverables, and optimise the project program.