Study and Application of Universal Main Grounding Device for UHV Transmission Lines of 500 kV and Above
In view of time-consu ming,labor-intensive and inefficient installation of conventional grounding devices in the maintenance of UHV transmission lines,a universal main grounding device for 500 kV and above lines was developed in this study.The device consists of new-type components such as a wire board and a wire clamp assembly,wherein the wire clamp assembly includes a main line clamp and an auxiliary wire clamp.Safety test and on-site application of the developed grounding device were carried out,showing that the new type of grounding device can be quickly hung on wires,improve work efficiency of operators and reduce labor intensity,thereby is of high safety and reliability and certain engineering ap-plication value.
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