​The Drop-out arrester is a kind of lightning arrester, which is skillfully installed on the drop type mechanism after refitting the distribution type zinc oxide arrester.When the power is not cut, the arrester can be tested, repaired and replaced with the help of load-break operating hook stick tool. It not only ensures the smooth running of the line, but also reduces the working intensity and time of the power maintainers. Especially suitable for unsuitable places such as communication, airport, station, hospital, etc.