First of all, there is no specific requirement for the computer room to be built on the first floor or the top floor.
(Excerpts below)
4 Computer room location and equipment layout
4. 1 location selection of electronic information system computer room
4. 1. 1 The location of the computer room of the electronic information system shall meet the following requirements:
1 Power supply should be stable and reliable, transportation and communication should be convenient, and the natural environment should be clean;
2 Keep away from places where dust, oil fume, harmful gas and corrosive, flammable and explosive substances are produced or stored;
3. Stay away from flood and fire hazard areas;
4 stay away from strong vibration sources and strong noise sources;
5 Avoid strong electromagnetic interference.
4. 1.2 for the electronic information system computer room in multi-storey or high-rise buildings, when determining the location of the main computer room, comprehensive consideration and economic comparison should be made on equipment transportation, pipeline laying, lightning induction, structural load, etc. The main room of special air conditioner for machine room should have the building conditions for installing outdoor units.
Secondly, the computer room lightning protection has the following aspects.
1, integrated wiring, shielding, etc.
2. The power supply system of the computer room adopts three-level lightning protection.
3. The signal arrester shall be installed on the signal line passing through the outdoor passage and indoor equipment.
4, electrostatic protection, equipotential treatment
5. For a good grounding system, common grounding requires grounding resistance ≤ 1ω.
It should be noted that if the computer room is selected on the top floor, it is necessary to pay attention to direct lightning protection, that is, lightning rods, lightning belts and lightning protection networks are set on the roof. See GB50057-94 Code for Lightning Protection Design of Buildings for specific requirements.
Computer room standards also require lightning protection, grounding and anti-static. The lightning protection of computer room can be designed in combination with GB50343 Technical Specification for Lightning Protection of Building Electronic Information System.
Lightning protection is a systematic project. If necessary, please consult the lightning protection department of the local meteorological bureau or a professional lightning protection company. If you have any questions, please leave a message with Baidu Hi.