Table A-17
Requirements for humidity, temperature, and cleanness in the equipment room
Item
Description
Cleannes
s
Dust
particl
e
Maximum
diameter
(μm)
0.05
1
3
5
Maximum
density
(number of
dust
particles per
cubic meter)
1.4 x 10
7
7 x 10
5
2.4 x 10
5
1.3 x 10
5
Noxio
us gas
density
Gas
SO
2
H
2
S
CI
2
HCl
HF
NH
3
O
3
NO
2
Average
(mg/m
3
)
0.3
0.1
0.1
0.1
0.0
1
1.0
0.
05
0.5
Maximum
(mg/m
3
)
1.0
0.5
0.3
0.5
0.0
3
3.0
0.
1
1.0
Humidity
and
temperat
ure
Tempe
rature
Long-term
operating
temperature
l
Without hard disk: 0 °C to 45 °C
l
With hard disk(s): 5 °C to 40 °C
Short-term
operating
temperature
l
Without hard disk: -5 °C to 55 °C
l
With hard disk(s): 5 °C to 40 °C
Operating humidity
l
Without hard disk: 5% RH to 95% RH, non-
condensing
l
With hard disk(s): 5% RH to 90% RH, non-
condensing
Storage humidity
l
Without hard disk: 5% RH to 95% RH, non-
condensing
l
With hard disk(s): 5% RH to 90% RH, non-
condensing
To meet the requirements listed in
, take the following measures in the equipment
room:
l
Install a permanent temperature controller regardless of the climate conditions.
l
In dry regions, use humidifiers or regularly mop the floor to ensure proper humidity in
the equipment room.
l
In regions with high humidity, use dehumidifiers.
l
Use dust-free materials for the floor, walls, and ceilings.
l
Screen exterior doors and windows. The external windows of the equipment room
should be sealed for anti-dust purposes.
l
Clean the equipment room and air filters on the devices once every three months.
HUAWEI USG6000 Series
Hardware Guide
A Appendix
Issue 08 (2017-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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