METHOD FOR VERTICALLY GROUNDING AND LEADING-DOWN FROM CENTER OF COMPOSITE MATERIAL POLE TOWER AND POLE TOWER THEREOF

摘要

A method for vertically grounding and leading-down from the center of a composite material pole tower and the pole tower thereof. The method includes: a ground wire cross arm (1) at the top of the tower is made of metal material, a grounding down-lead (2) is extracted from the center of the ground wire cross arm (1), and the grounding down-lead (2) is vertically led down from the center of the composite material pole tower and connected with the ground. The grounding down-lead (2) is directly connected to the steel pipe at the lower part (8) of the tower from the right center of the composite material pole tower for grounding when the lower part (8) of the tower body is formed as a steel pipe. The method utilizes the insulating intensity of the composite material pole tower for increasing the insulating intensity of the lines toward the lightning impulse and avoiding the short circuit between the grounding down-lead (2) and the tower body of the composite material pole tower, so that the insulating effect of the tower body of the composite material pole tower is improved. The grounding down-lead (2) is led down from the inner side of the pole tower, so that the damage risks of the exposed grounding down-lead (2) from external forces are avoided. The method is simple and easy to execute.