Requirements for the system safety ground, equipment working ground and the main distribution frame lightning ground should be used to joint grounding; the relevant standard is GB9361-2011 "Computer Site Safety Requirements".
The AC power distribution system security ground, equipment working ground and the main distribution frame lightning ground should be used jointly grounded, grounding resistance is not greater than 1 Ω. Terminal equipment grounding requirements to provide AC power to the computer terminal only fire wire and zero line, computer terminal protective ground line shall not use the AC power distribution system protective ground line, need to be connected with the switch GND.
In preparation for the installation site, reference to the following national standards: GB50173-93 "electronic computer room design specifications", GB2887-89 "computing station site technical conditions", GB9361-88 "computing station site safety requirements", EIA/TIA568 industrial standards and international business building wiring standards.
Expanded Information:
Requirements for the construction of computer rooms stipulate that:
1. Inside the power distribution cabinet should be set up according to the different requirements of the computer equipment and its auxiliary equipment, with a center line and grounding connection device. Power distribution cabinet (box) in the safety protection ground wire (PE) should be reliably connected with the equipotential grounding convergence box, but note that the power supply in the room in the middle wire (N) should be insulated with the ground wire (PE).
2, the power distribution cabinet bus, wiring harness, and a variety of cables, wires, neutral wires, grounding wires, etc., in line with national standards. Off according to the national color marking, numbering. All air switches are connected with copper row.
3, the distribution cabinet is equipped with an emergency switch, fire alarm system and power distribution cabinet (XP1) linkage, when the fire alarm signal is confirmed, by the fire control system will power distribution cabinet (XP1) power cut off.
Baidu Encyclopedia - Computer Room Construction Standards