Demonstration of the world's largest circuit breaker for safeguarding electric power.
Titles read: "CURRENT ATTRACTION" (Dublin issue).
Pittsburgh, United States of America.
Various shots of the world's largest circuit breaker for safeguarding electric power that has been installed at Pittsburgh. A man twiddles knobs and we see electricity flashing when 2 million kilowatts are short-circuited. In another demonstration, a section of the power line held in a wooden clamp explodes into hundreds of pieces when it is disconnected.
In the refrigerator laboratory, engineers in protective suits test equipment for Iceland. Ice-covered installations are short-circuited to produce flashes of electricity at 20 degrees below freezing.