During construction, key problems including automatic cutting of through line, construction quality management, as well as erection of large-span truss were solved.
施工中解决了相贯线的自动切割和施工质量管理及大跨度桁架的安装等关键问题。
2
The paper describes emphatically the principles of electrical leakage protector, the selection of design parameters and erection as well as wiring and inquires into the reliability of it.