'Twister' Multipart Switch Set

By Mike Parker; posted November 19, 2010

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This old 3 phase switch set was installed years ago by Puget Sound Power & Light Co. It is located near a substation in Buckley, WA. The lever action from the pole mounted switch handle twists the center insulator section sideways to break the circuit instead of the rocking motion center insulator on the set in the previous photo. Many of these old-timers are being replaced by a modern version using the same twisting motion as utilities constantly upgrade their standards.