JN15-12 model indoor H.V. earthing switch is newly advanced product applying newest technology of this model in the world. It is approved that the switch accords with standards of GB/T1985-89¡¶AC H.V.Disconnect switch and Earthing Switch¡·and IEC-129, mainly used for earthing protection matched with all kinds of H.V. switchgear in the power system AC 50Hz, rated voltage up to 12kV. Main features: *Height above sea level :1000¡«3000m; *Ambient temperature: upper limits £«40℃, lower limits £10℃; *Storage and transportation allowed at 30℃; *Earthquake intensity: not exceeding 8 degree; *Installing location without flammable, explosive, heavy dust, chemical corrosive matters and no Severe vibration .Conform the standard:ICE60129 GB1985,Passed the KEMA certified
Technical Specification/Parameter ¡ôRated voltage: 12KV ¡ôRated short-time withstand current:31.5/40KA ¡ôRated duration of short-circuit:4s ¡ôRated short-circuit closing current:80KA ¡ôRated peak withstand current:80KA ¡ôCenter distance between poles:150/165/210/230/250/275
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