Failure indicator for circuit lightning arrester

The utility model relates to a monitoring failure indicator for line lightning arresters. The utility model solves the problem that the prior art can not obviously prompt the failure position and the present status of the lightning arrester to effectively ensure nonserviceable line lighting arresters to be found, maintained and replaced in time and to ensure the security of the normal operation of the transmission lines. The utility model aims to develop a novel and practical fault indicator for line lightning arresters, and the utility model has the technical structure that the utility model comprises a disengaging device and an upper and a lower wire connecting terminals 7 and 1, wherein the periphery of the disengaging device 3 is wound with an indicating ribbon 4, and the outer side of the disengaging device 3 is also provided with a housing 5; the upper and the lower wire connecting terminals 7 and 1 are separately through arranged on the upper and the lower end surfaces of the housing 5.