Electric switchboard

Antique electrical switchboard, operational at a US plant in 2014. It features open style breakers, mounted on slabs of slate stone insulator.

An electric switchboard is a device that directs electricity from one or more sources of supply to several smaller regions of usage. It is an assembly of one or more panels, each of which contains switches that allow electricity to be redirected.

单词	Electric switchboard
释义	Electric switchboard 英语百科 Electric switchboard An electric switchboard is a device that directs electricity from one or more sources of supply to several smaller regions of usage. It is an assembly of one or more panels, each of which contains switches that allow electricity to be redirected.
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