Film

Power Lines (1944)

• 8 Nisan 1944
• 16 dk

• Belgesel

Özet

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.

Yönetmen

James E. Rogers

Başroller

Norman Shelley, Alvar Liddell