Huawei NetEngine80E Installation Manual page 126

HUAWEI NetEngine80E Router
Installation Guide
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B.1.6 Requirements for Corrosive Gases
The room should be free from dusts and corrosive gases, such as SO
B-4
Table B-4 Requirements for corrosive gas concentration
Chemical active
material
SO
H
NH
Cl
Take the following measures to meet the requirements:
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B.1.7 Requirements for ESD Prevention
The absolute value of electrostatic voltage is less than 1000 V.
Take the following measures to meet the requirements:
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B.1.8 Electromagnetism Requirements for the Equipment Room
All interference sources, inside or outside the equipment room, can cause equipment problems
with capacitive coupling, inductive coupling, electromagnetic wave radiation, and common
Issue 02 (2011-09-10)
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
2
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.
Place batteries in different rooms.
A professional service should monitor the corrosive gas conditions regularly.
Train operators about ESD prevention.
Keep the correct humidity level in the equipment room to reduce the impact of static
electricity.
Lay out an antistatic floor in equipment rooms.
Wear antistatic shoes and clothing before entering an equipment room.
Use ESD tools, such as wrist straps, tweezers, and pullers.
Ground all conductive materials in the room, including computer terminals. Use antistatic
worktables.
Keep non-antistatic materials (such as common bags, foams, and rubbers) at least 30 cm
(11.81 in.) away from boards and ESD-sensitive components.
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B Environmental Requirements for Device Operation
Concentration
3 ≤0.20
3
≤0.006
3
≤0.05
3
≤0.01
, H S, and NH . Table
2 2 3
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