Ambient temperature is, the average temperature during 24 hours couldn't exceed
Altitude:
Atmosphere condition:
Relative humidity of the atmosphere couldn't exceed 50% when the highest temperature is +40℃; much higher relative humidity is allowable under the condition of lower temperature, for example, when the temperature reaches +20℃, the relative humidity is up to 90%. As for dews, which contingently appear due to change of temperature, special steps should be taken.
Pollution degree: 3
Overvoltage category: Ⅲ
Tightening torque is 0.8~1.2N·m for the cable terminals, and 1.5~1.8N·m for the fixing nut. Cross section of the cable connection is 0.5~2.5mm2.
