Examining The Installation Site - H3C SE-S5130 Series Installation Manual

Table1-4 Corrosive gas concentration limits
Gas
SO
2
H S
2
Cl
2
HCI
HF
NH
3
O
3
NO
X
CAUTION:
As a best practice, control the corrosive gas concentrations in the equipment room at their average
values. Make sure the corrosive gas concentrations do not exceed 30 minutes per day at their
maximum values.
To control corrosive gases, use the following guidelines:
•
As a best practice, do not build the equipment room in a place with a high concentration of
corrosive gases.
•
Make sure the equipment room is not connected to sewer, vertical shaft, or septic tank pipelines
and keep it far away from these pipelines. The air inlet of the equipment room must be away
from such pollution sources.
•
Use environmentally friendly materials to decorate the equipment room. Avoid using organic
materials that contains harmful gases, such as sulfur or chlorine-containing insulation cottons,
rubber mats, sound-proof cottons, and avoid using plasterboards with high sulfur concentration.
•
Place fuel (diesel or gasoline) engines separately. Do not place them in the same equipment
room with the device. Make sure the exhausted air of the engines will not flow into the
equipment room or towards the air inlet of the air conditioners.
•
Place batteries separately. Do not place them in the same room with the device.
•
Employ a professional company to monitor and control corrosive gases in the equipment room
regularly.

Examining the installation site

Before you install the switch, verify that the installation site meets the installation requirements. The
switch can operate correctly in an A1 or A2 installation site. Availability issues might occur if you
install the switch in an A3, B1, B2, or C installation site.
Table1-5 Installation sites
Category
A1: indoor controlled
environment
A2: indoor partially
controlled
Average concentration (mg/m
0.3
0.1
0.1
0.1
0.01
1.0
0.05
0.5
Definition
•
Indoor environments where
temperature and humidity are
controlled.
•
Completely enclosed or shielded
indoor environments.
•
Indoor environments where
temperature and humidity are partially
1-4
3
) Maximum concentration (mg/m
1.0
0.5
0.3
0.5
0.03
3.0
0.1
1.0
Example
Central equipment rooms, IDC
equipment rooms, mobile cabins
with air conditioners, outdoor air
conditioner cabinets, and heat
exchanger cabinets.
Simple equipment rooms, ordinary
houses, garages, corridors, and
3
)