| 摘要 |
A subtransmission electrical insulator crossarm support is made of nonconductive, corrosion resistant material and has an arcuate indentation formed on the upright member to facilitate connection with the supporting pole. Triangular flanges that extend outwardly and upwardly from the sides of the intersection of the vertical stem and the horizontal crossarm strengthen the assembly. The electrical conductors are supported in grooves provided on the surface of the crossarm assembly and are fastened by insulated J bolts.
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