真(zhen)(zhen)空(kong)(kong)(kong)斷路器是判斷真(zhen)(zhen)空(kong)(kong)(kong)管真(zhen)(zhen)空(kong)(kong)(kong)度(du)劣(lie)(lie)化與否的常用(yong)(yong)方法(fa)(fa)是工頻(pin)耐壓法(fa)(fa)，這種方法(fa)(fa)只是能判斷真(zhen)(zhen)空(kong)(kong)(kong)度(du)嚴重(zhong)劣(lie)(lie)化的滅(mie)弧(hu)室(shi)。而當真(zhen)(zhen)空(kong)(kong)(kong)度(du)劣(lie)(lie)化到(dao)(dao)10-1-10-1 Pa時，雖(sui)然擊穿電壓沒有(you)降低，但滅(mie)弧(hu)室(shi)已不(bu)合格(ge)。HTZK-IV型真(zhen)(zhen)空(kong)(kong)(kong)開(kai)關(guan)真(zhen)(zhen)空(kong)(kong)(kong)度(du)測(ce)(ce)試(shi)儀采(cai)用(yong)(yong)新型勵磁線圈(quan)，運用(yong)(yong)磁控放電法(fa)(fa)測(ce)(ce)試(shi)滅(mie)弧(hu)室(shi)的真(zhen)(zhen)空(kong)(kong)(kong)度(du)，不(bu)必拆卸滅(mie)弧(hu)室(shi)。同時采(cai)用(yong)(yong)微機進行同步控制(zhi)與數據采(cai)集處理，使滅(mie)弧(hu)室(shi)真(zhen)(zhen)空(kong)(kong)(kong)度(du)的現場測(ce)(ce)試(shi)靈敏度(du)達到(dao)(dao)了10-5Pa。本儀器Z突(tu)出的特(te)點是