Supermicro SSE-X3648S, Installation Manual

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SSE-X3648S/SSE-X3648SR Switch Installation Manual
3-2
3-3 Temperature and Humidity
Although the switch is designed to use 4 fans, the site should still maintain a desirable
temperature and humidity. High-humidity conditions can cause electrical resistance
degradation or even electric leakage, degradation of mechanical properties and
corrosion of internal components. Extreme low relative humidity may cause the
insulation spacer to contract, making the fastening screw insecure. Furthermore, in dry
environments, static electricity is liable to be produced and cause harm to internal
circuits. Temperature extremes can cause reduced reliability and premature aging of
insulation materials, thus reducing the switch’s working lifespan. In the hot summer, it is
recommended to use air-conditioners to cool down the site. And the cold winter, it is
recommenced to use heaters.
The recommended temperature and humidity are shown below:
Caution! A sample of ambient temperature and humidity should be taken at 1.5m above
the floor and 0.4m in front of the switch rack, with no protective panel covering the front
and rear of the rack. Short term working conditions refer to a maximum of 48 hours of
continued operation and an annual cumulative total of less than 15 days. Excessive
operating conditions refers to the ambient temperature and relative humidity values that
may occur during an air-conditioning system failure - normal operation conditions should
be recovered within 5 hours.
Table 3-2. Environmental Requirements: Particles
Gas Average (mg/m³) Max (mg/m³)
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
Table 3-3. Environmental Requirements: Temperature and Humidity
Temperature Relative humidity
Long term condition Short term condition Long term condition Short term condition
15 ~ 30°C 0 ~ 40°C 40 ~ 65% 10 ~ 90%