High voltage (33 KV) ceramic insulator, c 1956.
3 1 c m
40cm
actual image size: 32cm x 23cm

High voltage (33 KV) ceramic insulator, c 1956.

Ridley, Tim

© Science Museum / Science & Society Picture Library

Description

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.
 

Artist

 

Image Ref.

10208310
 

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