Novel lightning protection insulator with fault indication type external gap

The invention discloses a novel fault indication type lightning protection insulator with an external gap, which comprises an insulator and a disconnector, and is characterized in that the outer side of the insulator is provided with an external fixed gap; and the outer side wall of the insulator is connected with a discharge body unit. The lightning arrester has the beneficial effects that the external fixed gap is arranged, external gap discharging can be carried out, the discharging body unit and the resistor disc are connected to the insulator, the discharging body unit comprises the first discharging body and the second discharging body, graded discharging of lightning charges can be achieved, the effects of insulation and an overvoltage protector are achieved, and the lightning arrester is high in practicability. The insulator and the overvoltage protector are integrated, the dual functions of the insulator and the lightning arrester are achieved, the reliability of a distribution network is greatly imp