The utility model provides an installation procedure can be simplified, heat radiation phenomenon, increase of service life's post insulators segmentation wire link fitting is avoided too much causing because of the connection transfer point between each gold utensil, includes the support, the support be by upper and lower extension board with set up at the branch component of an inter -plate from top to bottom, be equipped with the post insulators connecting seat with the axle center respectively at the up end of last extension board and the lower terminal surface of extension board down, just be equipped with the screw hole that circumference was evenly arranged respectively on two post insulators connecting seats, the lower terminal surface of last extension board under with the up end of extension board set up the line clamp that the mounting hole orientation is the same respectively, the up end of last extension board under and the lower terminal surface of extension board set up the equalizer ring respectively.