On the grounding of communication equipment
The ground and the protective earthing basically share a grounding bodyHow much is the grounding resistance, it depends on the specific requirements of equipment grounding resistance you, if the equipment grounding resistance less than 5 ohm, that give you the earthing line a 10 ohm, even if the ground will not have much effect
Grounding is generally divided into basic grounding and protective groundingGrounding of the function of 1 is to lightning protection, and 2 is to ensure that the equipment to meet the normal work requirements [triangle plug is the basis of grounding]The role of protective earthing is 1 to prevent electricity and 2 to ensure that the equipment is not disturbed
