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：
       當雷(lei)(lei)電(dian)(dian)(dian)波到達電(dian)(dian)(dian)纜端(duan)(輸(shu)人端(duan))時，避雷(lei)(lei)器(qi)被(bei)擊(ji)穿，電(dian)(dian)(dian)纜外(wai)皮(pi)(pi)導(dao)體(ti)與電(dian)(dian)(dian)纜芯(xin)接(jie)(jie)通(tong)。一(yi)部分(fen)雷(lei)(lei)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)經電(dian)(dian)(dian)纜端(duan)接(jie)(jie)地(di)電(dian)(dian)(dian)阻(zu)入地(di);另一(yi)部分(fen)雷(lei)(lei)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)流(liu)(liu)(liu)(liu)經電(dian)(dian)(dian)纜芯(xin)。由于雷(lei)(lei)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)高頻諧(xie)波相(xiang)當豐富.產生集膚效(xiao)應，流(liu)(liu)(liu)(liu)經電(dian)(dian)(dian)纜芯(xin)的電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)被(bei)排擠到外(wai)皮(pi)(pi)導(dao)體(ti)去。同(tong)時，流(liu)(liu)(liu)(liu)經外(wai)皮(pi)(pi)導(dao)體(ti)的電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)在芯(xin)中產生感生反(fan)電(dian)(dian)(dian)勢.使流(liu)(liu)(liu)(liu)經電(dian)(dian)(dian)纜芯(xin)的雷(lei)(lei)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)就被(bei)抑制到很小。

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