Installed by specifications, a channel device with the base, the base channel are main ground network connecting two points without at the same ground lines.
According to the requirements of the installation specification, one device and the base slot steel, the base slot steel and the main ground ingress network are two points connected, and not on the same ground trunk.
According to the installation specification requirements, the primary equipment is connected to the foundation channel steel, the foundation channel steel and the main grounding grid at two points, and is not on the same grounding main line.