Item 74835 - Break-strain insulator, ca. 1915
- Item 74835 - Break-strain insulator, ca. 1915
- Contributed by Maine Historical Society
- Item 74835
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Image Info This strain insulator, used on the support structures for overhead electric railway lines, was found in the Rockland area.
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Strain insulators are used on guy wires supporting utility poles or radio antennas to break the electrical path and prevent short circuits or grounding.
