How To Avoid Overheating Of Overhead Ground Wire Tension Clamp

bolted type strain clamp In the power system, the overheating points of high-voltage transmission lines usually occur at the connection points of the current-carrying conductors, while the discharge or overheating of overhead ground wires is extremely rare.

my country stipulates that overhead ground wires should be installed along the entire line of 220kV and above transmission lines to reduce the probability of direct lightning strikes on the conductors. dead end strain clamp Usually, galvanized steel stranded wires with a cross-sectional area of ​​not less than 35mm2 are placed above the high-voltage transmission lines, and the overhead ground wires are connected to the grounding of each tower. Some transmission line overhead ground wires extend to the incoming line structure of the substation. The overhead ground wire is installed in parallel with the 220kV transmission line, and there is induced electricity on the overhead ground wire. Although the induced electricity of the overhead ground wire is relatively high, the current is very small and will not cause overheating.