This net, over State Highway 8 at Gorge Creek, between Alexandra and Roxburgh, was one of them.
Transpower corporate communications manager Rebecca Wilson said the nets were for public safety to ''remove the risk of damage or harm to the public in the unlikely event of an accidental conductor drop while we are undertaking the work''.
That work involved doubling the transmission lines, the ones on the large metal pylons, from six to 12 between Clyde and Roxburgh.
It is part of a larger project aimed at improving transmission lines between Roxburgh and the Waitaki Valley which will help transport electricity from the lower South Island northwards. During dry years it will also help improve the electricity supply to Southland.
The Clyde-to-Roxburgh phase of the project is expected to be finished in early May. Meanwhile, Delta was ''undergrounding'' the Aurora Energy power lines, the lower set of power lines on the wooden poles, as part of the Transpower project, Delta marketing and communications manager Gary Johnson said.
