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1935 - circuit breaker workmen


CD 2487096 E&MP15.015

Electric Circuits, Breakers

March 25, 1935

The first two of the eight mammoth circuit breakers being built by the General Electric Company at its Philadelphia Works for the Bureau of Power and Light, City of Los Angeles, with some of the workmen who contributed to their manufacture.

These breakers, 27 feet high, 22 feet wide and 40 feet deep for the three pole units, are of a radically new design and will be used to protect the 270 mile, 287,000 volt transmission line between Boulder Dam and Los Angeles. 

Original Caption by Science Service
General Electric

Special Addition - 2.14.2008

Due to the popularity of requests for the above photograph 015.015 used in non-commercial genealogy research we have attempted to provide larger views in three sections.
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National Museum of American History


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