Polymer distribution line post insulator

Polymer distribution line post insulators, transmission insulators were suspended from tower arms. A natural progression would be to use insulators to replace the structure arms.

Polymer distribution line post insulator

Created by adding an upward angled brace insulator from the line end of the line post to the tower to buttress the vertical strength and place the line post in a purely compressive loading situation. This was ideal for the porcelain line post, since porcelain is strongest in compression.

Additionally a universal joint was added at the ground end of the line post, converting it into a compressive strut. The universal joint removed the possibility of a cantilever load being applied to the compressive strut.

Polymer distribution line post insulators, there are limitations to the capability of the assembly, the foremost being elastic buckling of the line post subassembly.


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