按(an)照用(yong)戶和使用(yong)場合的(de)更高要(yao)求，阜陽計(ji)算機電纜，總屏(ping)蔽(bi)結構(gou)可以采用(yong)復合屏(ping)蔽(bi)方(fang)式，即包含兩層屏(ping)蔽(bi)，由金屬帶(dai)繞包+金屬絲編(bian)織(zhi)構(gou)成。計(ji)算機電纜規格指的(de)是截面大(da)小(xiao)(xiao)和線芯數(shu)目(mu)，計(ji)算機電纜規格各種(zhong)各樣，常用(yong)的(de)有0.5平(ping)(ping)(ping)方(fang)、0.75平(ping)(ping)(ping)方(fang)、1平(ping)(ping)(ping)方(fang)、1.5平(ping)(ping)(ping)方(fang)、2.5平(ping)(ping)(ping)方(fang)等等，一般較大(da)規格的(de)需要(yao)廠家訂做(zuo)。計(ji)算機電纜小(xiao)(xiao)彎曲半徑(jing)：無(wu)鎧裝(zhuang)(zhuang)層應(ying)(ying)小(xiao)(xiao)于電纜外(wai)徑(jing)的(de)6倍，帶(dai)鎧裝(zhuang)(zhuang)層的(de)電纜應(ying)(ying)不小(xiao)(xiao)于電纜外(wai)徑(jing)的(de)12倍，計(ji)算機電纜在(zai)20℃時用(yong)直(zhi)流500V電壓(ya)試驗穩定充電1min后絕緣電阻應(ying)(ying)不小(xiao)(xiao)于2500MΩ·Km。

 計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)規(gui)格(ge)指的(de)(de)(de)是(shi)截面(mian)大小和線(xian)芯數(shu)目，計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)規(gui)格(ge)各種各樣(yang)，常用的(de)(de)(de)有0.5平(ping)(ping)(ping)方、0.75平(ping)(ping)(ping)方、1平(ping)(ping)(ping)方、1.5平(ping)(ping)(ping)方、2.5平(ping)(ping)(ping)方等(deng)(deng)等(deng)(deng)，一(yi)般較大規(gui)格(ge)的(de)(de)(de)需要廠家訂做。電(dian)(dian)(dian)(dian)子計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)電(dian)(dian)(dian)(dian)器設(she)(she)備用電(dian)(dian)(dian)(dian)纜(lan)(lan)，適用于額(e)定電(dian)(dian)(dian)(dian)流500V及下(xia)列抗干擾性規(gui)定高的(de)(de)(de)計(ji)算機(ji)(ji)和自(zi)動化儀(yi)表。依據不(bu)一(yi)樣(yang)條件和設(she)(she)施(shi)的(de)(de)(de)規(gui)定，電(dian)(dian)(dian)(dian)纜(lan)(lan)絕緣層材(cai)料(liao)(liao)能夠是(shi)高壓聚(ju)乙(yi)烯、聚(ju)乙(yi)烯、高密(mi)度(du)(du)聚(ju)乙(yi)烯、聚(ju)苯硫醚，硅膠等(deng)(deng)原材(cai)料(liao)(liao)。計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)，其(qi)內心(xin)為金屬銅，是(shi)以(yi)電(dian)(dian)(dian)(dian)子脈沖作為數(shu)據介質(zhi)，速(su)度(du)(du)為電(dian)(dian)(dian)(dian)子運(yun)動速(su)度(du)(du)，物理學現有的(de)(de)(de)已(yi)知速(su)度(du)(du)中，光速(su)是(shi)快的(de)(de)(de)，計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)壓，任何物體(ti)的(de)(de)(de)運(yun)動速(su)度(du)(du)都不(bu)可能超越光速(su)，所以(yi)，計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)傳輸速(su)度(du)(du)是(shi)無法跟光纜(lan)(lan)相比的(de)(de)(de)。

 　電(dian)(dian)子計(ji)算(suan)(suan)機(ji)電(dian)(dian)纜(lan)(lan)(lan)的(de)(de)屏(ping)蔽(bi)(bi)規定(ding)(ding)(ding)依(yi)據不(bu)一(yi)(yi)樣場所(suo)選用(yong)(yong)：分屏(ping)蔽(bi)(bi)僅適(shi)用(yong)(yong)于(yu)雙(shuang)絞(jiao)線，每對雙(shuang)絞(jiao)線均屏(ping)蔽(bi)(bi)，總屏(ping)蔽(bi)(bi)；電(dian)(dian)纜(lan)(lan)(lan)芯拼裝后(hou)，電(dian)(dian)纜(lan)(lan)(lan)僅有一(yi)(yi)層總屏(ping)蔽(bi)(bi)，計(ji)算(suan)(suan)機(ji)電(dian)(dian)纜(lan)(lan)(lan)型號(hao)，次(ci)屏(ping)蔽(bi)(bi) 一(yi)(yi)般屏(ping)蔽(bi)(bi)(包(bao)含之上二(er)種構(gou)造(zao)與此同時(shi))。儀(yi)表用(yong)(yong)計(ji)算(suan)(suan)機(ji)電(dian)(dian)纜(lan)(lan)(lan)必須套用(yong)(yong) 儀(yi)表安裝定(ding)(ding)(ding)額(e) 中(zhong)(zhong)的(de)(de)雙(shuang)絞(jiao)電(dian)(dian)纜(lan)(lan)(lan) 定(ding)(ding)(ding)額(e)子目。 因為 儀(yi)表用(yong)(yong)的(de)(de)計(ji)算(suan)(suan)機(ji)電(dian)(dian)纜(lan)(lan)(lan) 屬于(yu) 自控(kong) 電(dian)(dian)纜(lan)(lan)(lan)，必須套用(yong)(yong) 儀(yi)表冊的(de)(de)定(ding)(ding)(ding)額(e)子目。 而一(yi)(yi)般的(de)(de)控(kong)制電(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)力電(dian)(dian)纜(lan)(lan)(lan)才(cai)套用(yong)(yong) 電(dian)(dian)氣安裝 定(ding)(ding)(ding)額(e)中(zhong)(zhong)的(de)(de)定(ding)(ding)(ding)額(e)子目。計(ji)算(suan)(suan)機(ji)電(dian)(dian)纜(lan)(lan)(lan)主要(yao)用(yong)(yong)于(yu)電(dian)(dian)子計(ji)算(suan)(suan)機(ji)系統(tong)(DCS)的(de)(de)數(shu)據傳(chuan)輸(shu)和抗干擾要(yao)求較高的(de)(de)檢測儀(yi)器儀(yi)表，以及其他自控(kong)系統(tong)的(de)(de)弱信號(hao)連接、傳(chuan)輸(shu)等；套用(yong)(yong)自控(kong)中(zhong)(zhong)雙(shuang)絞(jiao)線。