Metalized film transient protection device

The invention discloses a metalized film transient protection device, characterized by comprising a sleeve, a conductor element, a housing, a metalized film layer, and a capacitor. The conductor element extends through the center of an internal space of the sleeve. An electrical element is electrically connected with an access conductor. The multilayer metalized film in the housing of the sleeve obtains transient protection. According to the invention, an existing sleeve is utilized in a coil so as to reduce production cost of electrical equipment. The device is convenient in installation anduse, and has excellent insulation, and is environmental-friendly and light in mass, good in corrosion resistance and security performance, high in reliability, and is energy saving and is worthy of popularization. 本发明公开了种金属化膜瞬态保护装置，其特征在于：包括套管、导体元件、壳体、金属化膜层、电容器，所述导体元件通过套管的内部空间的中心延伸，所述电气元件与进入导体之间的电连接；所述套管的壳体内部的多层金属化膜来获得瞬态保护。本发明能够把现有的套管用于线圈，使得降低电气设备的生产成本，安装使用方便，有优良的绝缘性，环保质量轻，耐腐蚀性佳，安全性能好，可靠性高，节能环保，值得推广。