Safety Management Of Drop-out Fuses Cannot Be Ignored.

drop fuse As a common protective device on the primary side of 10kV and below overhead lines and distribution transformers, its operation and condition monitoring are directly related to the risk level of on-site operations. drop fuse cutout When an abnormal current occurs in the system, its fuse will clearly fall after melting, forming a clear disconnection position, creating a visually visible power outage for on-site maintenance.

drop out expulsion fuse Usually installed on outdoor overhead poles, its installation and replacement must follow strict operating procedures, including the use of insulated operating rods and the wearing of personal protective equipment, to reduce the risk of electric shock in high-voltage environments.

The closing operation of the fuse tube requires careful attention to ensure good contact between the moving and stationary contacts. The closing force should be moderate; excessive force can damage the supporting insulator, while insufficient force will result in poor contact. After operation, check whether the duckbill tongue tightly engages the upper moving contact; if it is not in place, it can easily cause contact burns or the fuse tube to fall off on its own. For the disconnection operation, use an insulated pull rod to lift the upper stationary contact, allowing the fuse tube to automatically fall open using its own weight and spring action.