The Higginsville Treatment Plant is designed for a nominal 123tph milling rate, run of mine material is fed to the crushing plant at a design rate of 225 tph with crushed ore storage capacity installed to provide a break between crushing and milling operations. The gold concentrator is designed as a conventional carbon in leach (CIL) arrangement. Underground ore is crushed to nominally minus 9mm in a three stage hard rock crushing plant and then slurried and milled to nominally minus 0.075mm (75┬Ám) in a single stage 3 MW ball mill in a closed circuit with hydrocylones. The comminution circuit includes a gravity gold circuit consisting of a gravity concentrator and an intensive cyanidation circuit. The balance of gold recovery is obtained from a seven tank CIL circuit, four tonne pressure Zadra elution circuit and electrowinning systems.

Project Type – Design and Construct 11kv Overhead Transmission Lines

Client – Avoca Resources

Location – 150km’s South of Kalgoorlie, Western Australia

Scope of Work

Interlec were awarded the design and construct contract for the 11kv Overhead Power Transmission to distribute High Voltage power distribution to the Accommodation Village, Treatment Plant, Transfer Stockpiles, Vent Fans and Administration.

The Work Included

Design of the High Voltage Overhead Transmission Line, including an application to regulatory authorities and all construction drawings.

Procurement of all materials and equipment for the High Voltage Transmission Lines to the remote site.

Pole installation, conductor stringing and tensioning, installation of all pole mount and ground mount
transformers and underground high voltage cable installation, terminating and testing.

Working in extreme weather and ground conditions Interlec’s “hardened” field installation team carried out another outstanding job and successfully completed the works with nil Lost Time Injuries.

As Managing Director Paul Martens laments, the success of Interlec’s projects is always good planning, communication and good client / contractor relations, coupled with Interlec’s ability to engage an experienced, safety oriented site team, our work methodology enabled Interlec’s reputation as a performance enhanced contractor to dominate the Power Distribution Sector once again.

Congratulations and thanks to the Interlec Crew, GR Engineering and Avoca Resources on another on time, on budget, safety driven Transmission Line project.


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