a website collaboration between Science Service and the Smithsonian Institution

1938 - workmen preparing a circuit breaker for a temperature run

PREPARING FOR TEST

CD 2487098 E&MP15.017

Electric Circuits, Breakers

July 9, 1938

Workmen are shown preparing a circuit breaker for a temperature run at the East Pittsburgh works of the Westinghouse Electric & Manufacturing Company.

Three thousand amperes will be passed through the breaker and its connections until a constant temperature rise is reached. 


Original Caption by Science Service
Westinghouse



National Museum of American History

Home

Search - Site Map - Subjects to Choose From - Numbering Format

Credits - Copyright - Comments