屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)材料(liao)有圓銅(tong)線，銅(tong)帶(dai)、鋁帶(dai)/塑料(liao)復合(he)帶(dai)三種。屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)對(dui)與屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)對(dui)具(ju)有較(jiao)好的(de)絕緣性能，高溫計算機電(dian)(dian)纜(lan)(lan)，電(dian)(dian)纜(lan)(lan)在使用(yong)中若屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)對(dui)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)對(dui)之(zhi)間出現電(dian)(dian)位差時(shi)，不會影(ying)響信(xin)號的(de)傳輸(shu)質量)計算機電(dian)(dian)纜(lan)(lan)的(de)芯對(dui)芯、芯對(dui)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)或(huo)其它金(jin)(jin)屬(shu)(shu)層應能承受50赫茲、交流(liu)電(dian)(dian)壓2000伏(fu)(fu)/1分(fen)鐘或(huo)1500伏(fu)(fu)/5分(fen)鐘而(er)不擊穿。根據用(yong)戶的(de)更高要求和應用(yong)場合(he)，總(zong)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)結構(gou)(gou)可(ke)采用(yong)復合(he)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)方式，包括兩層屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)，由金(jin)(jin)屬(shu)(shu)帶(dai)纏繞+金(jin)(jin)屬(shu)(shu)絲編織組成。電(dian)(dian)子計算機電(dian)(dian)纜(lan)(lan)的(de)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)規定依據不一(yi)樣場所(suo)選用(yong)：分(fen)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)僅適用(yong)于雙絞線，每對(dui)雙絞線均屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)，總(zong)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)；電(dian)(dian)纜(lan)(lan)芯拼裝后(hou)，電(dian)(dian)纜(lan)(lan)僅有一(yi)層總(zong)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)，次(ci)屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)一(yi)般屏(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)(包含之(zhi)上二種構(gou)(gou)造(zao)與此同時(shi))。

為(wei)(wei)了(le)對電(dian)(dian)(dian)(dian)纜進行一(yi)(yi)定的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)保(bao)護作(zuo)用(yong)，電(dian)(dian)(dian)(dian)子計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜，一(yi)(yi)些計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜還會(hui)有(you)(you)(you)(you)一(yi)(yi)層(ceng)鎧(kai)裝層(ceng)，外(wai)面還會(hui)有(you)(you)(you)(you)保(bao)護套(tao)。計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使用(yong)非(fei)常廣泛，在(zai)冶金(jin)，石化，交通，等領域都(dou)有(you)(you)(you)(you)重要的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)應用(yong)。計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜一(yi)(yi)般是(shi)由幾個輸電(dian)(dian)(dian)(dian)線(每(mei)一(yi)(yi)組(zu)少兩根(gen))絞合(he)而成的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)相近繩(sheng)子的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)纜，每(mei)一(yi)(yi)組(zu)輸電(dian)(dian)(dian)(dian)線之間相互絕緣，并緊(jin)緊(jin)圍(wei)繞著(zhu)一(yi)(yi)根(gen)中(zhong)心擰成一(yi)(yi)個纜芯，有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)每(mei)一(yi)(yi)組(zu)包覆(fu)屏蔽層(ceng)，有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)全部纜芯包覆(fu)有(you)(you)(you)(you)屏蔽層(ceng)，有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)每(mei)一(yi)(yi)組(zu)及(ji)纜芯都(dou)有(you)(you)(you)(you)屏蔽層(ceng)。依據(ju)敷設標準(zhun)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)一(yi)(yi)樣，為(wei)(wei)了(le)更好地對電(dian)(dian)(dian)(dian)纜開展(zhan)保(bao)護，有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜外(wai)含有(you)(you)(you)(you)鎧(kai)裝層(ceng)，外(wai)一(yi)(yi)層(ceng)包覆(fu)有(you)(you)(you)(you)外(wai)護線套(tao)。計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜，其(qi)內心為(wei)(wei)金(jin)屬(shu)銅，是(shi)以電(dian)(dian)(dian)(dian)子脈沖作(zuo)為(wei)(wei)數(shu)據(ju)介質(zhi)，速(su)度為(wei)(wei)電(dian)(dian)(dian)(dian)子運動(dong)速(su)度，物理學現有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)已(yi)知速(su)度中(zhong)，光(guang)速(su)是(shi)快的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，任何物體的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)運動(dong)速(su)度都(dou)不(bu)可(ke)能超越光(guang)速(su)，計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜價格，所以，計(ji)(ji)算(suan)(suan)(suan)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳輸速(su)度是(shi)無法跟光(guang)纜相比的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。

電(dian)(dian)(dian)(dian)子計算(suan)(suan)機(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)作為(wei)通訊電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)一種，由一對之(zhi)上的(de)(de)絕(jue)緣電(dian)(dian)(dian)(dian)纜(lan)(lan)構成，周口計算(suan)(suan)機(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)，好幾個絕(jue)緣導體或體絞線(xian)的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)芯和維護電(dian)(dian)(dian)(dian)纜(lan)(lan)芯免遭濕氣和設(she)(she)備(bei)破壞的(de)(de)外護線(xian)套構成。依據客戶更(geng)高的(de)(de)需求和運用(yong)(yong)，總(zong)(zong)屏(ping)(ping)蔽(bi)(bi)構造可使用(yong)(yong)復合(he)(he)型(xing)屏(ping)(ping)蔽(bi)(bi)方(fang)法，包(bao)含雙(shuang)層(ceng)屏(ping)(ping)蔽(bi)(bi)，由金屬絲手(shou)工(gong)編織盤(pan)繞而成。為(wei)了減少(shao)回路(lu)間的(de)(de)相互(hu)串擾和外部(bu)干(gan)擾，電(dian)(dian)(dian)(dian)纜(lan)(lan)采(cai)用(yong)(yong)屏(ping)(ping)蔽(bi)(bi)結構。電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)屏(ping)(ping)蔽(bi)(bi)要求是根據不(bu)(bu)同場合(he)(he)分別采(cai)用(yong)(yong)：對絞組(zu)合(he)(he)屏(ping)(ping)蔽(bi)(bi)、對絞組(zu)成電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)總(zong)(zong)屏(ping)(ping)蔽(bi)(bi)、對絞組(zu)合(he)(he)屏(ping)(ping)蔽(bi)(bi)后總(zong)(zong)屏(ping)(ping)蔽(bi)(bi)等方(fang)法。計算(suan)(suan)機(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)適(shi)用(yong)(yong)于(yu)交流額定(ding)電(dian)(dian)(dian)(dian)壓300/500V及以(yi)下防(fang)外界信息干(gan)擾的(de)(de)計算(suan)(suan)機(ji)、儀器(qi)儀表設(she)(she)備(bei)等場所；電(dian)(dian)(dian)(dian)纜(lan)(lan)長期允許工(gong)作溫(wen)度為(wei)65℃；敷設(she)(she)時環境溫(wen)度不(bu)(bu)低于(yu):固(gu)定(ding)敷設(she)(she)-40℃，非固(gu)定(ding)敷設(she)(she)-15℃；小彎曲半徑：無(wu)鎧裝層(ceng)應小于(yu)電(dian)(dian)(dian)(dian)纜(lan)(lan)外徑的(de)(de)6倍，帶鎧裝層(ceng)的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)應不(bu)(bu)小于(yu)電(dian)(dian)(dian)(dian)纜(lan)(lan)外徑的(de)(de)12倍。