T&D World Magazine

TransGrid Pole Replacement Program Nearly Complete

TransGrid, the New South Wales, Australia, transmission network operator, has reached the final stage of its $2 million pole replacement program between Orange and Molong. TransGrid has made a significant investment in upgrading its transmission line infrastructure between Orange and Molong.

“By replacing wooden poles with concrete ones, we are making a long-term investment to increase the longevity and security of the region’s electricity supply infrastructure,” said Manager of TransGrid’s Central Region Ian Davidson. "By using modern materials that require less maintenance, we are strengthening the line and ensuring a more reliable power supply for the Central West,” he said. “We have now replaced approximately 100 structures along the entire length of the line, with only a few still to be replaced near Molong.”

In order to complete the works, TransGrid will need to transport, secure and erect the final five poles, which each weigh approximately seven tons and are over 22 in height.

“The pole replacement program is an effort from staff from TransGrid’s Orange Regional Center as well as local contractors, to upgrade the security of electricity infrastructure in the area,” Davidson said.

In a related projedt, TransGrid has commenced construction on a new 132-kV high capacity transmission line to secure the power supply for the Central Western Slopes and Plains. Davidson said the Manildra to Parkes Project is necessary to ensure the reliability of the electricity network, supplying the Manildra, Parkes, Cowra and Forbes areas.

“The project requires the installation of 360 concrete poles over 81 km between the Manildra and Parkes Substations,” said Davidson.

Preliminary site works starts soon on the first 17 km of line, which is expected to take approximately one month.

"This week we will start preliminary works, which include the construction of access tracks in the first section of line,” said Davidson. “Following preliminary site works, construction will commence at Manildra and progress west. Foundations, pole installation, and stringing of electrical wires will take place over the next 12 months, with project completion scheduled for late 2011.”

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