Maipu SM4200-28FC, Инструкция по установке

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SM4200-28FC (52FC) Install Manual V2.0
Maipu Confidential & Proprietary Information Page 15 of 24
The switch will get damaged if the air comprises salt, acid and sulfide
contents. Such harmful gases speed up metal corrosion and aging of some
parts. The site should avoid harmful gases such as SO2, H2S, NO2, NH3
and Cl2. The table below details threshold values.
Gas Gas Gas Gas Average Average Average Average (mg/m (mg/m (mg/m (mg/m³ ³ ³ ³)))) Max Max Max Max (mg/m (mg/m (mg/m (mg/m³ ³ ³ ³))))
SO
2
0.2 1.5
H
2
S 0.006 0.03
NO
2
0.04 0.15
NH
3
0.05 0.15
Cl
2
0.01 0.3
Temperature & Humidity
For a good air circulation after the switch being installed, it is
recommended to keep the switch rack in a room with a stable temperature
and humidity. Please use an air-conditioner to cool it up in summer and a
heating system in winter. If the humidity in the equipment room is too
high for long time, it causes the poor insulation and even electricity leak of
insulation materials easily. Sometimes, the mechanical performances of
materials change and the metal parts are corroded easily, too. If the
relative humidity is too low, insulation pads shrink, which causes the
fastened screws loose. Meanwhile, in dry environment, static electricity
appears easily, which harms the circuits on the switch. If the temperature
is too high, the reliability of the switch reduces greatly. The long-time high
temperature affects the life and speeds up the aging of insulation
materials. The recommended working temperature and humidity are listed
in the following table:
Temperature: Temperature: Temperature: Temperature: Relative Relative Relative Relative humidity humidity humidity humidity
Long term condition Short term condition Long term condition Short term condition
15-30
℃
0-50
℃
40-65% 10-95%
␇ ␇ ␇ ␇ Caution Caution Caution Caution
The working environment temperature and humidity of the switch should
be measured at 1.5m above the floor and 0.4m in front of the rack,
without front or back
protective panel on the rack. The short-term working
condition means less than 48 hours continuously and less than 15 days for
the annual total; Extreme adverse working environment means the
environment temperature and humidity when the air-conditioning system
in the equipment room fails. The duration should be within 5 hours.
Power Supply
The switch adopts modular power supply. Before switching on, ensure proper
groun
di ng of the power supply system. The input source for the switch
should be reliable and secure. Use a voltage adaptor, if necessary.