項目名稱：防雷檢測工程
       項目地點：巴南區四人民醫院
       項目內容：
       當(dang)雷電(dian)(dian)波(bo)到達電(dian)(dian)纜(lan)端(輸人端)時，避雷器被(bei)擊穿(chuan)，電(dian)(dian)纜(lan)外皮導體(ti)(ti)與電(dian)(dian)纜(lan)芯接通(tong)。一(yi)部分(fen)雷電(dian)(dian)流經(jing)電(dian)(dian)纜(lan)端接地電(dian)(dian)阻(zu)入(ru)地;另(ling)一(yi)部分(fen)雷電(dian)(dian)流流經(jing)電(dian)(dian)纜(lan)芯。由于(yu)雷電(dian)(dian)流高頻諧波(bo)相當(dang)豐富.產(chan)生集膚(fu)效應，流經(jing)電(dian)(dian)纜(lan)芯的(de)電(dian)(dian)流被(bei)排擠到外皮導體(ti)(ti)去。同時，流經(jing)外皮導體(ti)(ti)的(de)電(dian)(dian)流在芯中(zhong)產(chan)生感(gan)生反電(dian)(dian)勢.使(shi)流經(jing)電(dian)(dian)纜(lan)芯的(de)雷電(dian)(dian)流就(jiu)被(bei)抑制到很小。

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