Ruijie RG-S5750-S Series, Руководство по установке и справочное руководство по оборудованию

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Table 2-1 Temperature and humidity requirements of the RG-S5750-S series
Temperature Relative Humidity
0–50ºC 10%–90%
The working temperature and humidity are measured 1.5 m above the ground and 0.4 m away from the
front plat and when the chassis's front and rear protective plates are removed.
Cleanness Requirements
Dust poses the top threat to the running of the equipment. The indoor dust falling on the equipment may be adhered by
the static electricity, causing bad contact of the metallic joint. Such electrostatic adherence may occur more easily when
the relative humidity is low, not only affecting the use life of the equipment, but also causing communication faults. The
following table shows the requirements for the dust content and granularity in the equipment room.
Table 2-2
Substance Concentration Limit (particles/m
3
)
Dust particles (diameter ≥ 0.5 μ m) ≤ 3.5 × 10
6
Dust particles (diameter
≥
5
μ
m)
≤
3
×
10
4
Apart from dust, the salt, acid and sulfide in the air in the equipment room must also meet strict requirements; as such
poisonous substances may accelerate the corrosion of the metal and the aging of some parts. The equipment room
should be protected from the intrusion of harmful gases (for example, SO
2
, H
2
S, NO
2
and Cl
2
), whose requirements are
listed in the following table.
Table 2-3
Gas Average (mg/m
3
) Maximum (mg/m
3
)
SO
2
0.3 1.0
H
2
S 0.1 0.5
NO
2
0.5 1. 0
Cl
2
0.1 0.3
The Average refers to the average limit of harmful gas in one week. The Maximum value is the upper limit
of the harmful gas measured in one week for up to 30 minutes every day.