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        HY5WS配電用

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        金屬氧化避雷器是國際上90年代的高科技產(chǎn)品。其采用了非線性伏-安特性十分優(yōu)異的氧氣鋅電阻片,故而避雷器的徒坡,雷電波,操作波下的保護(hù)特性均比傳統(tǒng)的碳化硅避雷器有了極大的改善。特別是氧化鋅電阻片具有良好的徒坡響應(yīng)特性,對陡坡電壓無遲延,操作殘壓低,沒有放電分散性等優(yōu)點(diǎn)。從而克服了碳化硅避雷器所固有的因陡坡放電遲延而引起的陡坡放電電壓高,操作波放電分散性大而導(dǎo)致操作波放電電壓高等缺點(diǎn),使得陡坡,操作波下的保護(hù)裕度大大地提高,而且在絕緣配合方面,能夠作到陡坡,雷電波,操作波的保護(hù)裕度接近一致,從而對電力設(shè)備提供最佳的保護(hù),進(jìn)而提高了保護(hù)的可靠性。氧化鋅避雷器同時(shí)具有吸收雷電過電壓,操作過電壓和工頻暫態(tài)過電壓的能力。
        ????復(fù)合外套金屬氧化鋅避雷器是國際90年代的高科技產(chǎn)品。采用整體硅橡膠模壓成型,密封性能好,防爆性能優(yōu)異,耐污穢免清洗,并能減少霧天濕閃發(fā)生,耐電蝕抗老化,體積小重量輕,耐碰撞,便于安裝和維護(hù)。是瓷套避雷器的更新?lián)Q代產(chǎn)品。

        環(huán)境溫度:不高于+40℃,不低于-40℃;
        海拔高度:不超過2000m;
        電源頻率:50±2Hz;60±2Hz;
        地震強(qiáng)度:7度以下;
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        長期使用于以下異常條件,避雷器需特別制作,定貨時(shí)應(yīng)說明:
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        使用環(huán)境存在嚴(yán)重潮氣或腐蝕性氣體雜質(zhì)(水上、鹽場、化工廠等);
        強(qiáng)紫外線輻射(高原、強(qiáng)日照干旱地區(qū)等);
        特重污穢地區(qū)(礦山工作面、建筑工地工作面等)。

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