The AC power lines and the telecommunication lines should be referenced together at the building entry point.
The AC power lines and the telecommunication lines should be referenced together at the building entry point.
在建筑物入口端，电源线和通信线应该连接一起接地。
The AC power lines and the telecommunication lines should be referenced together at the building entry point.
在建筑物入口端，电源线和通信线应该连接一起接地。