The power distribution system adopts the zero-connection or grounding protection system according to the specification, and the power equipment is reliably grounded or zero-connected.
The distribution system adopts neutral or grounding protection system according to the specifications, and the power machines and tools shall be reliably grounded or neutral.
The distribution system adopts zero or grounding protection system according to the specification, and the electric machines and tools can be reliably grounded or grounded.