Fuse and assembly method thereof

The invention discloses a fuse which comprises a main body, a fuse wire and a fixed sealing assembly. The main body is a tubular structure with two open ends and is provided with a quartz sand layer inside. The safety wire stretches into the main body, with both ends extending out of the main body and then bending at the outside. The fixed sealing assembly is composed of a fixed gasket and a sealing cap; the fixed gasket is arranged at two ends of the main body and rests against the two ends of the main body, and the sealing cap is fixedly hitched at two ends of the main body, respectively resting against the fixed gasket and the safety wire. The invention further discloses a fuse installation method. The fuse and the installation method are simple and convenient; the fuse is reliable in performance and resurfacing welding is not required during the installation, thus avoiding overflow of the solder and fault soldered joint and preventing the safety fuse from being broken by compression; therefore good contac