UEA Conducts Overhead Network Upgrade

Posted 2 November 2012

Overhead Electrical Network UpgradeA NSW power authority engaged UEA Electrical to replace poles and overhead conductor along Horsley Road, Horsley Park as part of an ongoing network construction project to improve network reliability.

Extensive and detailed planning was required to deliver the necessary scope of works within four limited outages. As is the case with all overhead network construction projects, particular attention was spent on traffic and pedestrian management. With multiple plant and equipment positioned between the footpath and roadside alignment, the safety of public and traffic was paramount.

The network construction project was conducted in four distinct stages with the first outage proving the most challenging as the town centre was affected.

Outage 1

The scope for the first outage was designed to interrupt this section of the network one time only which meant multiple crews performing multiple tasks, including:

  • 4x pole changes
  • Underslung link installation
  • 7 bays of HV conductor augmented
  • Low voltage transfer to new poles
  • Removal of redundant poles

Outage 2

  • 3x pole changes
  • 1x Air Break Switch installation
  • Low voltage changeover
  • Removal of redundant poles

Outage 3

  • 4x pole changes
  • 1x Air Break Switch installation
  • 1x High Voltage Under Slung Link installation
  • Low voltage changeover
  • Removal of redundant poles

Outage 4

The final outage comprised of augmenting the final eleven bays of overhead conductor along with removal of the final redundant poles.

This overhead augmentation project possessed all of the key challenges that are typically experienced during overhead network construction works. Through planning, communication and preparation, the project was delivered safely, on time and to the highest standard.

Image Caption: Removal of HV bonds in preparation for pole removal.