1965 - Single wire earth return line

Bay of Plenty Electricity Ltd. (B.O.P. Electric Power Board), March 1965, Electricity reticulation of the Waioeka Gorge line, Ōpōtiki.

First single wire earth return line in this area using a Helicopter to install poles and run wire.

A pole (No. 17) complete with strain insulators and guy wire on its journey into the Waioeka Gorge, 1965