The length of detachable double flange covered power delivery joint should be chosen according to construction site usage in the process of application to avoid the expansion joint damaged and cause the performance of expansion joint declined, this kind of problem in the process of installation and use of all kinds of dowel joint is the most common. Then, during the rational use space, should make reasonable antisepsis for the use of power delivery expansion joint and adopts special anti-corrosion materials. For the detachable covered power delivery joint, adopts effective anti-corrosion method, avoid technical index declined caused by poor environment.
