The Electrical Worker

The Electrical Worker

4.11 - 1251 ratings - Source

Where Lock Control Board Will Be Installed. Special gears 2, 300 Special ... A double 44, 000 volt transmission line across the isthmus, connecting Cristobal and Balboa with the two power plants. ... For the hand operated switches, a pipe framework supports vertical metal guides which carry the oil switch operating mechanism and slate base forming a section of the switchboard panel. On the guides aanbsp;...

Title:The Electrical Worker
Publisher: - 1914


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