No Poster Available
Power Lines 1944 Directed by James E. Rogers
The manufacture of cables for transmitting electric power is shown. Copper bars are rolled and drawn into wire, which is twisted into strands, and covered for insulation and protection with layers of rubber, lead, cloth and paper. The completed cables are then given high-voltage tests before being dispatched from the factory.
Production Country
United Kingdom
Language
English
Gnere
Documentary
Release Date 8 April 1944
16 mins
