Joyelectric International is a professional China 40.5kv earthing switch distributor and agent among those well-known such manufacturers and suppliers, welcome to order 40.5kv earthing switch products from our factory and company.JN15-40.5/31.5 series of Indoor HV A.C Earthing Switch Ambient Condition:1. The height above sea level shall be no more than 1000 meter;2. Ambient air temperature: +40℃~ -10℃3. Seismic intensity: no more than 8 magnitude 4. It shall be installed in the place without dust, fire, chemical erosion, explosion, vapor & salt spray, and the place where the strong vibration may not happen. Outline drawing and installation dimension of JN15-40.5/31.5 Earthing switch Dimension of installation hole Dimension of installation hole of fixed knife Product model No. Distance between phases L L1 L2JN15-40.5/31.5-280280684464140JN15-40.5/31.5-300300724504150JN15-40.5/31.5-350350824604175 JN22-40.5/31.5 series of Indoor HV A.C Earthing SwitchAmbient Condition:1. The height above sea level shall be no more than 1000 meter;2. Ambient air temperature: +40℃~ -10℃3. Seismic intensity: no more than 8 magnitude;4. It shall be installed in the place without dust, fire, chemical erosion, explosion, vapor & salt spray, and the place where the strong vibration may happen. Main Technical ParameterItemUnitDataRated voltagekV40.5Rated short time withstand current(4s)kA31.5Rated short circuit making currentkA80Rated peak withstand currentkA80The center distance between phasesmm280,300,350Rated insulation levelPower frequency withstand voltage(1min)kVPole to ground95Lightning impulse withstand voltageBetween phases 185 Outline drawing and installation size of JN22-40.5/31.5 Mating table:Distance between phase L L1 L2 L3A(installation hole of channels steel back)28075010606903-Φ1430079011007303508901200830 If you would like a quotation or further information on the products, please fill in the form below and we will reply to you within 1 working day. Thank you for your interest to our products.