High-tension lightning arrester with shield ring

The utility model discloses a high-tension lightning arrester with a shield ring, comprises a porcelain bushing assembly, an insulating bushing, an upper base, a lower base and a leakage ammeter, and further comprises a shield ring. The shield ring comprises a lantern ring which is sleeved outside the porcelain bushing assembly and a supporting framework, wherein the supporting framework is connected with the earth by penetrating through the insulating bushing, the lantern ring is sleeved at the bottom of the porcelain bushing, the supporting framework is a metal bar or a soft annealed wire, and the supporting framework is manufactured by copper materials. The leakage ammeter can only show conducting currents of the inner elements of the lightning arrester, while the outer leakage current is conducted to the earth, thereby enabling the working performance of the leakage ammeter to be more pertinent, and providing an accurate data source for the safe and reliable operation of the lightning arrester. The high-t