Contributed by Maine Historical Society
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This style of glass insulator was originally made in 1898 for the Telluride Power Transmission Company in Provo, Utah, which used it to construct a long high voltage line.
It proved unreliable at high voltage, but worked well at lower voltages, and remained a popular technology for 22kV transmission lines throughout the United States until porcelain multipart insulators were developed.
About This Item
- Title: Provo-type electrical insulator, ca. 1897
- Creator: Hemingray Glass Co.
- Creation Date: circa 1897
- Subject Date: circa 1897
- Media: Glass
- Local Code: 2004.090.3297
- Collection: Central Maine Power Company collection
- Object Type: Physical Object
For more information about this item, contact:Maine Historical Society
485 Congress Street, Portland, ME 04101
(207) 774-1822 x230
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