In an environment with relatively high humidity, the insulating material may have bad insulation or even leak
electricity. Sometimes the materials may suffer from mechanical performance change and metallic parts may get
rusted.
In an environment with relatively low humidity, however, the insulating strip may dry and shrink. Static electricity may
occur easily and endanger the circuit on the equipment.
In an environment with high temperature, the equipment is subject to even greater harm, as its performance may
degrade significantly and its useful life may be shortened in the case of long-term exposure that expedites the aging
process.
Therefore, the ambient temperature and humidity of the RG-S2600E must meet the requirements listed in Table 2-1:
Table 2-1 Temperature and humidity requirements of the RG-S2600E series
Temperature
Relative Humidity
RG-S2628G-P V2.XX
0ºC-55ºC
10%-90%
The ambient temperature and humidity are measured at the point that is 1.5 m above the floor and 0.4 m
before the equipment when there is no protective plate in front or back of the equipment rack.
Cleanness Requirements
Dust poses a severe 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 usage life of the equipment, but also causing communication faults.
Table 2-2 shows the requirements for the dust content and granularity in the equipment room.
Table 2-2 Requirements for the dust content and granularity in the equipment room
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
