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2.2.2 Environment Requirement
Item
Requirement
Machine Hall Space
When user installs machine frame array in one machine
hall, the distance between 2 rows of machine frames
should be 1.2~1.5m and the distance against wall
should be no less than 0.8m.
Machine Hall Floor
Electric Isolation, Dust Free
Volume resistivity of ground anti-static material:
1X10
7
~1X10
10
Ω
, Grounding current limiting resistance:
1M (Floor bearing should be greater than 450Kg/
㎡
)
Environment
Temperature
5~40
℃
(sustainable ), 0~45
℃
(short time)
，
installing air-conditioning is recommended
Relative Humidity
20%~80% sustainable 10%~90% short time
Pressure
86~105KPa
Door & Window
Installing rubber strip for sealing door-gaps and dual
level glasses for window
Wall
It can be covered with wallpaper, or paint.
Fire Protection
Fire alarm system and extinguisher
Power
Requiring device power, air-conditioning power and
lighting power are independent to each other. Device
power requires AC power 100-240V 50-60Hz. Please
carefully check before running.
2.2.3 Grounding Requirement
•
Good grounding is the basis of reliability and stability of devices. Also, they are the most
important guarantee of lightning protection and interference rejection. Therefore, the system
must follow this rule.
•
Coaxial cables outer conductor and isolation layer should keep proper electric conducting
with the metal housing of device.
•
Grounding conductor must adopt copper conductor in order to reduce high frequency
impedance, and the grounding wire must be as thick and short as possible.
•
Users should make sure the 2 ends of grounding wire are properly connected.
