Patent ID: 9698585
Date: 2017-07-04
CPC Classifications: E04H,H02G

Claim:
1. A composite cross arm structure of a composite tower for a power grid transmission line, wherein the composite cross arm structure comprises: two sets of cross arm insulators arranged horizontally into a V-shaped arrangement with an apex and an opening, wherein a first end of each set of the two sets of cross arm insulators is connected to a tower body of the composite tower at the opening of the V-shaped arrangement; wherein each set of the two sets of cross arm insulators is formed from two hollow insulators connected to each other via a first flange and at least one set of oblique-pulling insulators, one end of each of the at least one set of oblique-pulling insulators is connected to a second end of the two sets of cross arm insulators at the apex of the V-shaped arrangement, and the other end of each of the at least one set of oblique-pulling insulators connected to the tower body above the two sets of cross arm insulators; and middle insulation pulling rods with each of the middle insulation pulling rods corresponding to each set of the two sets of cross arm insulators respectively, one end of each middle insulation pulling rod is connected to the first flange of each set of the two sets of cross arm insulators respectively, and the other arm of each middle insulation pulling rod is connected to the tower above each set of the two sets of cross arm insulators respectively, and wherein each of the oblique-pulling insulators is a line insulator.