Electrical Penetration Assembly for Fast Critical Assembly

A electrical penetration assembly which does not require to cut cables and can be used in the hall for the fast critical assembly is introduced in this paper. The structure of the electrical penetration assembly is simple and facilitates the cable replacement. The results from the leakage test on the electrical penetration assembly and the hall indicate that the leakage ratio is less than the design ratio, and the overall seal performance of the hall satisfies the requirement on the normal operation and accident conditions for the fast critical assembly.