City of Armadale in put out a tender for the installation of single and double outreached 12.5 meter  street lighting poles and all necessary infrastructure. This was due to a new dual carriageway being developed by the City of Armadale to duplicate the existing Warton Road from Jandakot Road to Nicholson Road due to a heavy volume of traffic in the area due to new sub-divisions being developed.

Interlec’s estimating team of Paul Martens, Dionne Silcock and Tom Newnham got together and took on the job of putting together an offer for the City of Armadale and submitting it in March of 2012. This tender went through to a council meeting shortly after the final submission date where Interlec(WA) was the successful tenderer and were awarded the contract.

Client: City of Armadale

Location: Warton Road Jandakot between Jandakot Road and Nicholson Road

Project Duration: 1 year from date of award.

Scope of Work

Interlec(WA) were awarded the contract to install 16 double outreached street lights and 4 single outreached pole, with all associated cabling, excavation and horizontal directional drilling.

The Works Included

The project consisted of standing 16 steel standard double outreached poles and 3 steel standard single outreached pole. This was done using Interlec’s truck mounted crane and truck mounted hiab by Interlec’s experienced and competent crane operators and dogman team.

Each pole consisted of 250 Watt High pressure sodium luminaires and lamps which were controlled by a Photo Electric Cell – Better known as Dusk to Dawn Lighting.

Part of the contract requirements for Interlec(WA) was to install the necessary infrastructure to put the existing overhead power lines underground as they ran down the middle in the new median strip.

This included; the installation of 480 meters of 400 square millimetre three phase aluminium underground High Voltage  feeder cable and 480 meters of 240 square millimetre three phase aluminium Low Voltage feeder cable Direct Buried by way of open excavation in Western Power’s 0-600 millimetre alignment.

1,625 meters of 16 square millimetre neutral screened single phase copper underground street light cable installed in 50 millimetre Heavy Duty Underground Conduit by way of open excavation.

215 meters of 25 square millimetre neutral screened three phase copper underground service cable installed in 50 millimetre Heavy Duty Underground Conduit by way of open excavation.

Where a cable and conduit had to cross a road Interlec’s Horizontal Directional Drilling Division were called in to install conduits under roadways. This included 9 drill shots consisting of 7 at 50 millimetre conduits for 16 and 25 square millimetre cables and 1 at 110 millimetre for 240 square millimetre feeder cable and 1 at 160mm for 400 square millimetre High Voltage feeder cables.

Interlec were working in conjunction with the City of Armadale’s representative Underground Power Development and Future Grid, who are an alliance of Western Power. Overall the project was a success with Interlec completing the project with zero incidents or injuries. The client was once again happy with the outcome and the section of road no longer had “Dark Spots”.

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