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Switchgear
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==History== [[Image:Schaltanlage um1910.jpg|thumb|Early switchgear (about 1910)]] Switchgear is as old as [[electricity generation]]. The first models were very primitive: all components were simply fixed to a wall. Later they were mounted on wooden panels. For reasons of fire protection, the wood was replaced by [[slate]] or [[marble]]. This led to a further improvement, because the switching and measuring devices could be attached to the front, while the wiring was on the back.<ref>(German) Allgemeine Elektricitäts-Gesellschaft (ed) ''AEG Hilfsbuch für elektrische Licht- und Kraftanlagen 6th Ed.'', W. Girardet, Essen 1953</ref>
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