1, GA37 1-200 1 technical requirements for physical security of computer information systems;
2.GB2887-2000 General Specification for Computer Sites;
3.GB50 174-93 Code for Design of Computer Rooms;
4.GBJ57-83 Code for Lightning Protection Design of Buildings.
Second, the lightning protection and grounding specification
The grounding of lightning protection products is divided into two concepts, one is lightning protection to prevent the harm caused by lightning strike; The second is grounding, which is a water use measure to ensure the normal work and personal safety of water use facilities. The grounding device is the grounding body and antenna, and its function is to introduce the silver wire DC into the ground. The protection of lightning protection system is largely related to this.
Extended data:
Some concepts of lightning protection grounding device;
1. Lightning receiving device: metal rod (lightning receptor) that directly or indirectly receives lightning, such as lightning rod, lightning belt (net), overhead ground wire, etc.
Wires and lightning arresters, etc.
2. Down lead: conductor used to conduct lightning current from lightning receptor to grounding device.
3. Grounding wire: normally, it is a metal conductor that does not carry current and is used to connect the grounding terminal of electrical equipment and towers with the grounding body or zero line.
4. Grounding body (pole): The metal conductor buried in the soil and in direct contact with the earth is called grounding body. Divided into vertical grounding body and horizontal grounding body.
5. Grounding device: the floorboard of grounding wire and grounding body.
6. Grounding grid: a grid grounding device consisting of vertical grounding body and horizontal grounding body, which has the functions of discharging current and equalizing voltage.
7. Grounding resistance: The sum of grounding resistances of grounding body or natural grounding body is called grounding resistance of grounding device, and its value is equal to the ratio of grounding voltage of grounding device to current flowing into the earth through grounding body. At the same time, grounding resistance is also a sign to measure the level of grounding device.
Reference: Baidu Encyclopedia-Lightning Protection and Grounding