Novel lightning protection circuit of extension socket

A novel lightning protection circuit of an extension socket relates to the technical field of extension sockets. The circuit comprises temperature fuses RT1 and RT4, resistors R1, R2 and R3, a piezoresistor MOV1, a PNP triode Q1 and a lightning protection indicating lamp LED2. Wherein one end of the temperature fuse RT4 is connected with a live wire, and the other end is respectively connected with the temperature fuse RT1 and the resistor R1 in parallel; the other end of the temperature fuse RT1 is connected in parallel with the resistor R2, the resistor R3 and the piezoresistor MOV1 at the same time, and the other end of the resistor R3 is connected with the lightning protection indicating lamp LED2; the emitter of the PNP triode Q1 is connected with the resistor R1, the base of the PNP triode Q1 is connected with the resistor R2, and the collector of the PNP triode Q1 is connected in parallel with the lightning protection indicating lamp LED2, the piezoresistor MOV1 and the null line; the resistor R1 and t