Arctica 4806xp switch Installation Guide Chapter 2 Installation Notice
2
the threshold value.
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 2
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2 Environmental Requirements: Particles
2.1.2.Temperature and Humidity
Although the switch is designed to use 4 fans, the site should still maintain a desira-
ble 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 ex-
tremes 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:
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%
Table 2
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3 Environmental Requirements: Temperature and Humidity
Caution!
A sample of ambient temperature and humidity should be taken at 1.5m above the
