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Guildford MIG Early Works

Guildford MIG Early Works

The major challenge on this project was being able to achieve a major upgrade within the extremely tight schedule, which was constrained by the client’s rail possessions.
To ensure this was achieved, our project team prepared a detailed project programme and managed this meticulously.

Date
October 2017
Location
Guildford
Network
Sydney Trains
Client
Downer

Key challenges and Mackex Services solutions

The major challenge on this project was being able to achieve a major upgrade within the extremely tight schedule, which was constrained by the client’s rail possessions. To ensure this was achieved, our project team prepared a detailed project programme and managed this meticulously.

A further challenge was encountered with the installation of conduits under the traffic platform at Guildford Train Station. The design required the installation of 4 x 150mm conduits in a crawl space. With the limited access this was identified as a safety risk working in such a confined space. To address this challenge, the Mackex Services project team developed an alternative methodology to first install 4 x 160PE pipes using a winch system, through which the cables were subsequently pulled. This was successfully completed within the limited possession period with no issues. As a result of this successful project, Mackex Services was awarded further permanent works for Guildford, Minto and Ingleburn Substations.

Work scope

The work package consisted of:
  • Supply and installation of 11kV and 33kV conduits, cables, terminations
  • Installation of 400mm2 copper DC cables and conduits
  • Supply and installation of 11kV Ring Main Unit
  • Installation of guy poles
  • Installation of 1600 metres of aerial earth wire conductor
  • Installation of 18 x 10m and 3 x 20m deep bore earths
  • Removal of 400m of existing overhead conductor and poles

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