Movie Details
Original Language:English
Production Companies:Merton Park Studios, British Council
Cast & Crew
J
James E. Rogers
Director
Power Lines
DirectorJames E. Rogers
16 minDocumentary
Plot
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.