如上圖：為電(dian)線(xian)截(jie)面(mian)示意圖；如果用電(dian)鍍法電(dian)鍍單面(mian)導(dao)電(dian)銅(tong)膜進行折疊(die)作為導(dao)線(xian)，導(dao)電(dian)面(mian)折疊(die)處(chu)以絕緣薄膜隔(ge)離，這樣(yang)就形成了(le)一(yi)個超級(ji)導(dao)電(dian)表(biao)面(mian)的截(jie)面(mian)；物理理論中電(dian)流只從(cong)導(dao)電(dian)體表(biao)面(mian)運動形成電(dian)流，那么這樣(yang)的截(jie)面(mian)要比普通金屬實心截(jie)面(mian)導(dao)電(dian)電(dian)阻小很多。

原理(li)簡述(shu)如下：由(you)于電(dian)(dian)(dian)(dian)(dian)(dian)流只從導電(dian)(dian)(dian)(dian)(dian)(dian)體表(biao)面(mian)(mian)流動，那么單位長度的導電(dian)(dian)(dian)(dian)(dian)(dian)體電(dian)(dian)(dian)(dian)(dian)(dian)阻與(yu)材料的導電(dian)(dian)(dian)(dian)(dian)(dian)系(xi)數(shu)（ρ=ρo(1+at））及導電(dian)(dian)(dian)(dian)(dian)(dian)體的截(jie)面(mian)(mian)周(zhou)長成比(bi)例(li)關系(xi)：其結果可(ke)以用R*=iρ/d表(biao)示其中R*表(biao)示導電(dian)(dian)(dian)(dian)(dian)(dian)體該(gai)規(gui)格下導電(dian)(dian)(dian)(dian)(dian)(dian)率，ρ表(biao)示該(gai)材料導電(dian)(dian)(dian)(dian)(dian)(dian)系(xi)數(shu)，d表(biao)示截(jie)面(mian)(mian)周(zhou)長，i表(biao)示導電(dian)(dian)(dian)(dian)(dian)(dian)率與(yu)導電(dian)(dian)(dian)(dian)(dian)(dian)系(xi)數(shu)固定關系(xi)系(xi)數(shu)。

上面圖示(shi)的(de)(de)方(fang)式(shi)會(hui)導(dao)(dao)(dao)致截面有效導(dao)(dao)(dao)電面長(chang)度顯著變(bian)長(chang)，甚至會(hui)是普通的(de)(de)同等粗細的(de)(de)導(dao)(dao)(dao)線(xian)的(de)(de)幾(ji)十倍(bei)，所以導(dao)(dao)(dao)電率會(hui)比常規導(dao)(dao)(dao)線(xian)單位(wei)長(chang)度電阻小(xiao)幾(ji)十倍(bei)；那么就會(hui)做(zuo)到常溫下接(jie)(jie)近超導(dao)(dao)(dao)的(de)(de)目的(de)(de)了。其缺點在于(yu)接(jie)(jie)線(xian)方(fang)法(fa)要求嚴(yan)格，不(bu)能用于(yu)所有電器，只(zhi)有用于(yu)大(da)功(gong)率及高壓線(xian)路超遠距離(li)傳送來應用，接(jie)(jie)線(xian)法(fa)是要把接(jie)(jie)線(xian)端(duan)插(cha)入的(de)(de)隔離(li)膜(mo)拿(na)掉一(yi)部分，互相(xiang)翻轉插(cha)入固定法(fa)達(da)到接(jie)(jie)合(he)目的(de)(de)，薄膜(mo)越薄，需要技術性越高。如果用單面薄膜(mo)卷起的(de)(de)方(fang)法(fa)來做(zuo)的(de)(de)話，我(wo)不(bu)知道會(hui)不(bu)會(hui)因外層(ceng)對內層(ceng)的(de)(de)電場屏蔽作用導(dao)(dao)(dao)致內層(ceng)不(bu)導(dao)(dao)(dao)電。這樣的(de)(de)方(fang)法(fa)由現(xian)在復雜電路板多(duo)層(ceng)電路互不(bu)干擾可(ke)推(tui)理出(chu)是可(ke)行(xing)的(de)(de)。