Coronavirus (COVID-19) While museums are closed, the Science and Society Picture Library prints site is fully operational and we have added an FAQ page here.

Toughened glas suspension insulator, 1956.

Toughened glas suspension insulator, 1956.
4 0 c m
actual image size: 23cm x 32cm


High-voltage power lines must be well insulated or the electricity may force its way through a poor insulator or spark acros a gap. Non-porous substances like glas or ceramic are used to insulate telegraph poles and high-voltage power lines. The glas or ceramic is shaped to keep rain, dew and other moisture from collecting, to avoid creating a circuit and conducting the electricity.

Image Details

Image Ref.

© Science Museum / Science & Society Picture Library

buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas