POWER TRANSMISSION LINE WITHOUT LIGHTNING SHIELD LINE

摘要

Provided is a power transmission line without a lightning shield line. The lightning and ice protection performance of a power transmission line is enhanced by removing a lightning shield line, which can easily be covered by ice, and by additionally installing a high-capacity lightning and ice-flashover protection combined insulator. The power transmission line without a lightning shield line comprises a lightning and ice protection insulator (100), a tower (200), wires (300) and a communication medium, wherein the through-current capability of the lightning and ice protection insulator (100) is higher than that of a traditional lightning arrester, and the lightning and ice protection insulator is used for suspending the wires (300) and can also conduct a lightning current to the tower (200); and the tower (200) is used for conducting the lightning current to the ground in a natural grounding manner. By means of the solution of the power transmission line without a lightning shield line, the problem of a traditional line whereby same is prone to the breakage of a lightning shield line due to same being covered by ice is solved; and the construction cost of a power transmission line is reduced, and the economy and reliability of the power transmission line are improved while the lightning and ice protection performance of the power transmission line is improved.