Elv cabinet earthing requirements

Most of the time we in the computer room in the process of building the rack grounding problem enough attention, this is building phase one of the most important one link. Computer cabinet to earth this is a basic common sense, many contractor will also listed this step to the construction plan, but many times they will computer cabinet earth received comprehensive buildings on the ground. This is a fatal mistake, this mistake can lead to millions or even tens of millions of equipment in a flash of scrapped.
computer room grounding if absolute insulation is impossible, because the earth is a conductor, but to ensure that the electrical grounding with our computer room grounding body distance is more than 100 metres. Computer room grounding is used for static electricity grounding with ark, if have the static electricity is released from the ground, it cannot meet the together, and electric insulation, because electrical main is building lightningproof grounding, ray's voltage is very high, high to we don't know how high, discharge time into the underground, if our earth again to meet together with electrical, high voltage will return through our computer room grounding body to damage our computer room equipment.
so it is important to note that in the process of construction, it is strictly prohibited to computer cabinet earth received comprehensive buildings on the ground.