Huawei AP4030DN Hardware Installation And Maintenance Manual page 74

Huawei AP4030DN
Hardware Installation and Maintenance Guide
Table 5-11 Requirements for dust particles in the equipment room
Mechanical active
material
Dust particle
Suspending dust
Precipitable dust
Description



Take the following measures to meet the requirements:




Requirements for Corrosive Gases
The room should be free from dusts and corrosive gases, such as SO
5-12
Table 5-12 Requirements for corrosive gas concentration
Chemical active
material
SO
H
2
NH
Cl
Take the following measures to meet the requirements:


Issue 02 (2015-05-18)
Dust particle diameter ≥ 5 µm
Suspending dust diameter ≤ 75 µm
75 µm ≤ precipitable dust diameter ≤ 150 µm
Use dustproof materials for ground, wall, and ceiling construction.
Use screens on the door and windows facing outside. The outer windows should be
dust-proof.
Clean the equipment room regularly and clean the air filter monthly.
Wear shoe covers and ESD clothes before entering the equipment room.
shows the requirements for the corrosive gas concentration.
Unit
mg/m
2
S mg/m
mg/m
3
mg/m
2
Avoid constructing the room near a place where the corrosive gas concentration is high,
such as a chemical plant.
Ensure the air intake vent of the room is in the prevailing upwind direction from the
pollution source.
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Unit
3
Particle /m
3
mg/m
2
mg/m · h
Concentration
3
≤0.20
3
≤0.006
3
≤0.05
3
≤0.01
5 Appendix
Concentration
4
≤ 3x 10
(no visible dust accumulated
on a workbench in three
days)
≤0.2
≤1.5
, H S, and NH . Table
2 2 3
70