Hemingray 79s in service (stackers) being replaced

By Alan Drew; posted August 17, 2009

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A Montana Power crew changing out a crossarm and insulators using the live line tool method where the hot conductors are spread out of the way with the use of a gin pole, hot ropes and hot tools. The insulators are CD 248 with a pair of CD 311 sleeves. Photograph circa 1960's.