Overview
Middleton Group was involved in reviewing the design (30%, 60%, and 90%) to install a 220kV interconnector cable between the Mortlake South Wind Farm and Terang Substation – approximately 15km of cable.
The Owner’s Engineer role involved reviewing design and installation documentation, site support, and supervision of installation works conducted on-site by the subcontractor, John Beever Australia.
Challenge
The challenge here was to identify best practice for installing the 220kV cable on site.
More specifically, monitoring and surveillance was required daily, highlighting installation and design issues by the D&C contractor.
Solution
Middleton Group conducted site supervision throughout the Owner’s Engineer’s role at Mortlake and conducted regular site inspections throughout the construction works.
This required working closely with Acciona and JBA personnel to help the team understand best practice around installing a 220kV cable underground.
Results
Middleton Group successfully reviewed Acciona design and the Owner’s Engineer role (surveillance) highlighted any deficiencies with installing and commissioning the 220kV cable on-site throughout construction.
Acciona was able to confidently and efficiently install the 220kV cable with the validation that the plans were designed to a high standard.