For individual business license is mainly security monitoring and installation, in the scope of business should be how to write? More
The whole plant to have a grounding grid, resistance qualified, leads to a number of ground wire (flat iron, steel can be), all need to ground equipment, such as cable bridge, switchgear metal shell and so on and any ground wire connection.
Yes, the ground flat iron can be placed inside or outside the bridge, the bridge also need to be connected with this flat iron, but all equipment, circuit grounding protection must be connected with the ground bus, and can not be indirectly connected through the bridge.
It is impossible to say that you are talking about the plug is the power cord, only one is the power plug, the other end is the other type of plug the power cord, or prone to electric shock accident.
