Huawei AP3010DN-AGN Hardware Installation And Maintenance Manual page 91

Huawei AP3x10xN&5x10xN&5x30xN&6x10xN&7x10xN
Hardware Installation and Maintenance Guide
Figure 5-80 Internal partition wall inside the equipment room
Equipment Room Environment
Dust on devices may cause electrostatic discharge and result in poor contact for connectors or
metal connection points. This problem can shorten the life span of devices and cause faults.
The equipment room must be free from explosive, conductive, magnetically-permeable, and
corrosive dust.
Table 5-11 Requirements for dust particles in the equipment room
Mechanical active
material
Dust particle
Suspending dust
Precipitable dust
Description
l Dust particle diameter ≥ 5 µm
l Suspending dust diameter ≤ 75 µm
l 75 µm ≤ precipitable dust diameter ≤ 150 µm
Take the following measures to meet the requirements:
l
Issue 11 (2015-05-18)
Table 5-11 shows the requirement for dust concentration in the equipment room.
Use dustproof materials for ground, wall, and ceiling construction.
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Unit
3
Particle /m
3
mg/m
2
mg/m ·h
5 Appendix
Concentration
4
≤ 3x 10
(no visible dust accumulated
on a workbench in three
days)
≤0.2
≤1.5
84