Computer room construction system design plan (power supply and distribution system)
According to the technical requirements of various computer equipments?to the?environment?in server?room, synthetically correspond to the GB standard of the computer room, and take the class B computer room as the main design standard,?the specific technical indexes?are as follows:
4.1 Environmental requirements When starting: Temperature (summer) 23±1°C, ( Winter) 20±2°C, change rate<5°C/h, no condensation; humidity 40%--55% stop: temperature 5°C--35°C, change rate<5°C/h, no condensation; humidity 40%--70% uninterruptible power supply battery compartment temperature: 15 °C ~ 25 °C dust purity: the main working area dust particle size greater than or equal to 0.5μm should be less than or equal to 18000 / cm3?(equivalent to 500000) / ft 3);
Noise: 5 points test average <68dB Magnetic field interference field strength: ≤800A/m; Radio interference field strength: no more than 126dB when the frequency range is 0.15~1000MHz; The electrostatic potential of the insulator in the main room and auxiliary area should not exceed 1kV; Under the shutdown condition, the vertical horizontal vibration acceleration of the main room floor is not more than 500mm/s2; the noise is <65dB.
2) Power supply and distribution requirements:
According to the corresponding standard: TN-S system should be used (three-phase five-wire)
The allowable fluctuation range of grid voltage should be -10% to +7%;
The permitted frequency range is ±0.2Hz to ±0.5Hz (when the capacity is insufficient);
Overvoltage: according to GB 18481-2001;
Harmonic: according to GB/T 15549-1993;
