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Table 2-1 Dust concentration limit in the equipment room
Physical active substance
Dust
Note: The dust particle diameter is ≥ 5 μm
Besides the dust requirements, the AC equipment room also needs to strictly meet the requirements on
the concentration of salt, acid, and sulfide. These harmful gases can accelerate the metallic corrosion
and the aging process of some parts. The specific limits of the harmful gases such as SO
NH
and CI
are given in the following table.
3
2
Table 2-2 Limit on harmful gases in the equipment room
SO
2
H
S
2
NH
3
Cl
2
Requirements on Electromagnetic Susceptibility
The operation of your AC may be affected by external interferences, such as capacitance coupling,
inductance coupling, electromagnetic wave radiation, common impedance (including the grounding
system) coupling, and the conducted interference of leads (power cords, signaling cables and output
wires). To eliminate the interferences,
For the AC power supply that adopts the TN system, use a single-phase three-wire power socket
with a protection earth (PE) to effectively filter interference from the power grid.
Keep the AC away from high-power radio transmitters, radars, and high-frequency heavy-current
devices.
Use electromagnetic shielding measures when necessary. For example, use shielded interface
cables.
Route interface cables only indoors to prevent signal interfaces from getting damaged by
over-voltage or over-current caused by lightning strikes.
Laser Safety
WX5002 AC are Class 1 laser devices.
When the optional optical interfaces on a WX5002 AC are operating, avoid staring into the optical
interfaces because the high-energy laser beam emitted from the optical fiber may hurt your retina.
≤ 3 × 10
Gas
2-2
Concentration limit (particles/m
4
(No visible dust on the tabletop over three days)
Maximum concentration (mg/m
0.2
0.006
0.05
0.01
3
)
, H
S, NO
,
2
2
2
3
)
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