室内的高压电Disconnector换/Isolator

Normal Environment Condition: The altitude does not exceed 1000m.The ambient temperature is between -30 Degrees Celsius to +40 Degrees Celsius, The daily mean temperature is no greater than 30 Degrees Celsius.The daily mean relative temperature is no greater than 95%. The monthly mean relative temperature is no greater than 90%.The installation area should be without the dangerous mediums which after the conductive properties and the insulating performance the products.There should be no frequent vibration and serious jolt.Special Environment condition: The altitude of high prototype products is more than 3500m.The outdoor products can ensure the medium of steam, gas, chemical corrosive deposit, salt spray, dust, dirt, and so on.The environment temperature is between -35°C to +55°C. The daily mean temperature is greater than 40°C. NameUnitParameterRated voltageKV12Rated currentA630 1250Rated frequencyHz50Rated short time withstand currentKA20 31.5Rated peak value withstand currentKA50 80Rated duration of short circuitS4Rated insulation level1min power frequency withstand vltageKV42/48lightning impulse withstand voltage75/85