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技術知識

  • 電線電纜各種規格型號匯總

    1、類別(bie)：H——市內(nei)通信電(dian)纜(lan) HP——配(pei)線電(dian)纜(lan) HJ——局(ju)用電(dian)纜(lan)2、絕(jue)緣：Y——實(shi)心聚(ju)(ju)烯(xi)烴(jing)(jing)絕(jue)緣 YF——泡沫(mo)聚(ju)(ju)烯(xi)烴(jing)(jing)絕(jue)緣 YP——泡沫(mo)／實(shi)心皮聚(ju)(ju)烯(xi)烴(jing)(jing)絕(jue)緣3、內(nei)護(hu)層(ceng)(ceng)(ceng)(ceng)：A——涂(tu)塑鋁帶粘接屏蔽(bi)聚(ju)(ju)乙(yi)烯(xi)護(hu)套 S——鋁，鋼(gang)雙層(ceng)(ceng)(ceng)(ceng)金屬帶屏蔽(bi)聚(ju)(ju)乙(yi)烯(xi)護(hu)套 V——聚(ju)(ju)氯乙(yi)烯(xi)護(hu)套4、特征：T——石油膏填(tian)充(chong) G——高頻隔離 C——自承式5、外護(hu)層(ceng)(ceng)(ceng)(ceng)：23——雙層(ceng)(ceng)(ceng)(ceng)防(fang)腐鋼(gang)帶繞(rao)包(bao)銷(xiao)裝聚(ju)(ju)乙(yi)烯(xi)外被層(ceng)(ceng)(ceng)(ceng)33——單層(ceng)(ceng)(ceng)(ceng)細鋼(gang)絲鎧(kai)裝聚(ju)(ju)乙(yi)烯(xi)被層(ceng)(ceng)(ceng)(ceng)43——

    2020-08-05 51dianlan

  • WTTEZ無機絕緣(yuan)防火電纜(lan)結(jie)構(gou)及性能特(te)點

    一、WTTEZ電(dian)(dian)纜(lan)(lan)結(jie)構(gou)(gou)：1.絞合導體(ti);2.無機復(fu)合絕緣;3.無機復(fu)合膨(peng)脹填充;4.皺紋銅管護(hu)套;5.低煙無鹵外護(hu)套;WTTEZ電(dian)(dian)纜(lan)(lan)性(xing)能(neng)特點：①防火(huo)(huo)、耐火(huo)(huo)性(xing)能(neng)十分優越(yue)為保(bao)證(zheng)電(dian)(dian)纜(lan)(lan)在(zai)火(huo)(huo)焰(yan)中能(neng)正常供電(dian)(dian)，即在(zai)著火(huo)(huo)條件下保(bao)持電(dian)(dian)纜(lan)(lan)結(jie)構(gou)(gou)穩(wen)定，在(zai)電(dian)(dian)纜(lan)(lan)結(jie)構(gou)(gou)設(she)計中，增加了一層具有(you)耐火(huo)(huo)且膨(peng)脹性(xing)能(neng)的(de)包覆層，該(gai)包覆層在(zai)火(huo)(huo)焰(yan)條件下，體(ti)積膨(peng)脹使電(dian)(dian)纜(lan)(lan)絕緣結(jie)構(gou)(gou)更加穩(wen)定。因此該(gai)種(zhong)電(dian)(dian)纜(lan)(lan)可以(yi)在(zai)接近銅的(de)熔點的(de)火(huo)(huo)災(zai)情(qing)況下繼續保(bao)持供電(dian)(dian)，是一種(zhong)真(zhen)

    2020-08-05 51dianlan

  • 電纜(lan)載流(liu)量(liang)(liang)對照表(biao)_銅芯電纜(lan)載流(liu)量(liang)(liang)表(biao)_電纜(lan)載流(liu)量(liang)(liang)表(biao)及口訣

    電(dian)(dian)線電(dian)(dian)纜載流(liu)量(liang)對照表：電(dian)(dian)線電(dian)(dian)纜載流(liu)量(liang)口決：估(gu)算(suan)口訣：二(er)點五下乘(cheng)以九，往上減(jian)(jian)一(yi)順號(hao)(hao)走。 三十五乘(cheng)三點五，雙雙成組減(jian)(jian)點五。 條件有變加折算(suan)，高溫九折銅升級。 穿管根數(shu)二(er)三四，八七(qi)六折滿載流(liu)。 說明：(1)本(ben)節口訣對各種絕緣線(橡皮(pi)和塑料絕緣線)的(de)載流(liu)量(liang)(安全電(dian)(dian)流(liu))不是(shi)直接指(zhi)出(chu)，而是(shi)”截面(mian)乘(cheng)上一(yi)定的(de)倍數(shu)”來表示，通過心算(suan)而得。由表5 3可(ke)以看出(chu)：倍數(shu)隨截面(mian)的(de)增大而減(jian)(jian)小。“二(er)點五下乘(cheng)以九，往上減(jian)(jian)一(yi)順號(hao)(hao)走”

    2020-06-28 51dianlan

  • 銅芯電力電纜載流量標準

    本標(biao)準(zhun)譯自國際(ji)電(dian)工委員會建筑物電(dian)氣(qi)(qi)裝置第(di)五部(bu)分的(de)第(di)523節載流量，標(biao)準(zhun)號為 IEC 60364-5-523 1983年(nian)。改革開放(fang)以后，公共事業和(he)住宅建設發(fa)展迅速，家用(yong)電(dian)氣(qi)(qi)設備(bei)和(he)其它用(yong)電(dian)設備(bei)日漸(jian)增多。但不可忽(hu)視的(de)是(shi)在每(mei)年(nian)發(fa)生(sheng)的(de)火(huo)災(zai)(zai)(zai)中(zhong)，電(dian)氣(qi)(qi)火(huo)災(zai)(zai)(zai)也呈上(shang)升趨勢。在短短的(de)幾年(nian)中(zhong)，電(dian)氣(qi)(qi)火(huo)災(zai)(zai)(zai)比例增長一倍以上(shang)，其中(zhong)相(xiang)當一部(bu)分是(shi)由(you)電(dian)纜(lan)電(dian)線的(de)絕緣損壞、過熱自燃、接觸不良、電(dian)纜(lan)單(dan)相(xiang)接地和(he)相(xiang)間短路(lu)等故障引起的(de)。因此，如

    2020-06-28 51dianlan

  • 電力電纜(lan)型號結構技(ji)術參數

    型號(hao)及(ji)名(ming)(ming)稱型號(hao)名(ming)(ming)稱適用范圍VV聚(ju)氯(lv)(lv)(lv)乙烯(xi)絕(jue)緣(yuan)(yuan)(yuan)(yuan)聚(ju)氯(lv)(lv)(lv)乙烯(xi)護套(tao)(tao)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)敷(fu)設(she)在(zai)室(shi)(shi)內(nei)(nei)、隧道及(ji)管道中(zhong)，電(dian)(dian)(dian)纜(lan)(lan)不能(neng)承(cheng)受(shou)壓力和(he)機(ji)械外力作(zuo)(zuo)用。VLVVV22聚(ju)氯(lv)(lv)(lv)乙烯(xi)絕(jue)緣(yuan)(yuan)(yuan)(yuan)鋼帶(dai)鎧(kai)裝聚(ju)氯(lv)(lv)(lv)乙烯(xi)護套(tao)(tao)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)敷(fu)設(she)在(zai)室(shi)(shi)內(nei)(nei)、隧道及(ji)直埋土壤(rang)中(zhong)，電(dian)(dian)(dian)纜(lan)(lan)能(neng)承(cheng)受(shou)壓力和(he)其他外力作(zuo)(zuo)用。VLV22VV32聚(ju)氯(lv)(lv)(lv)乙烯(xi)絕(jue)緣(yuan)(yuan)(yuan)(yuan)細鋼絲(si)鎧(kai)裝聚(ju)氯(lv)(lv)(lv)乙烯(xi)護套(tao)(tao)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)敷(fu)設(she)在(zai)室(shi)(shi)內(nei)(nei)、礦井中(zhong)，水中(zhong)，電(dian)(dian)(dian)纜(lan)(lan)能(neng)承(cheng)受(shou)相當的(de)拉力。VLV32VV42聚(ju)氯(lv)(lv)(lv)乙烯(xi)絕(jue)緣(yuan)(yuan)(yuan)(yuan)粗鋼絲(si)鎧(kai)裝聚(ju)氯(lv)(lv)(lv)乙烯(xi)護套(tao)(tao)電(dian)(dian)(dian)力電(dian)(dian)(dian)

    2020-06-28 51dianlan

  • 電線電纜基本知識

    1mm2的(de)(de)(de)電源線(xian)(xian)最大(da)能過多少安(an)的(de)(de)(de)電流，多大(da)的(de)(de)(de)功率(lv)？比方2.5平(ping)方的(de)(de)(de)電線(xian)(xian)，工(gong)程施工(gong)中怎樣算要用多大(da)的(de)(de)(de)電線(xian)(xian)？ ①對(dui)(dui)于1.5、2.5、4、6、10mm2的(de)(de)(de)導(dao)(dao)線(xian)(xian)可(ke)將其(qi)(qi)截面(mian)積數(shu)乘(cheng)以5倍(bei)(bei)。 7 x! g2 ?! Q0 h% ]②對(dui)(dui)于16、25mm2的(de)(de)(de)導(dao)(dao)線(xian)(xian)可(ke)將其(qi)(qi)截面(mian)積數(shu)乘(cheng)以4倍(bei)(bei)。 ③對(dui)(dui)于35、50mm2的(de)(de)(de)導(dao)(dao)線(xian)(xian)可(ke)將其(qi)(qi)截面(mian)積數(shu)乘(cheng)以3倍(bei)(bei)。 ④對(dui)(dui)于70、95mm2 的(de)(de)(de)導(dao)(dao)線(xian)(xian)可(ke)將其(qi)(qi)截面(mian)積數(shu)乘(cheng)以2.5倍(bei)(bei)。 9 d. o-

    2020-06-08 51dianlan

  • 預分支(zhi)電(dian)(dian)纜，預制分支(zhi)電(dian)(dian)纜產品(pin)介紹(shao)

    預(yu)(yu)分(fen)支(zhi)(zhi)電(dian)(dian)(dian)纜(lan) YFD系列(lie)(lie)預(yu)(yu)制(zhi)分(fen)支(zhi)(zhi)電(dian)(dian)(dian)纜(lan)的主(zhu)要(yao)特征 絕緣(yuan)電(dian)(dian)(dian)纜(lan)200M; 工(gong)(gong)頻耐(nai)(nai)壓(ya)3.5KV/5min; 良好的氣(qi)密性與防水(shui)(shui)性，即將分(fen)支(zhi)(zhi)接(jie)頭浸(jin)入(ru)水(shui)(shui)中(zhong)(zhong)，在(zai)水(shui)(shui)與電(dian)(dian)(dian)纜(lan)芯間測(ce)絕緣(yuan)電(dian)(dian)(dian)阻和工(gong)(gong)頻耐(nai)(nai)壓(ya)均符(fu)合(he) 1.2的要(yao)求 預(yu)(yu)分(fen)支(zhi)(zhi)電(dian)(dian)(dian)纜(lan) YFD系列(lie)(lie)預(yu)(yu)制(zhi)分(fen)支(zhi)(zhi)電(dian)(dian)(dian)纜(lan)的主(zhu)要(yao)特征 絕緣(yuan)電(dian)(dian)(dian)纜(lan)200M; 工(gong)(gong)頻耐(nai)(nai)壓(ya)3.5KV/5min; 良好的氣(qi)密性與防水(shui)(shui)性，即將分(fen)支(zhi)(zhi)接(jie)頭浸(jin)入(ru)水(shui)(shui)中(zhong)(zhong)，在(zai)水(shui)(shui)與電(dian)(dian)(dian)纜(lan)芯間測(ce)絕緣(yuan)電(dian)(dian)(dian)阻和工(gong)(gong)頻耐(nai)(nai)壓(ya)均符(fu)合(he)

    2020-06-08 51dianlan

  • 碳纖維發熱(re)電纜的(de)安裝(zhuang)程序

    碳(tan)纖(xian)維(wei)發熱電(dian)(dian)(dian)纜(lan)是(shi)電(dian)(dian)(dian)地暖(nuan)(nuan)中使用最廣泛(fan)的(de)一(yi)種(zhong)，也(ye)是(shi)最舒適(shi)、方便節能的(de)一(yi)種(zhong)。碳(tan)纖(xian)維(wei)發熱電(dian)(dian)(dian)纜(lan)是(shi)否正(zheng)確(que)安(an)(an)(an)裝(zhuang)(zhuang)，直接影(ying)響到電(dian)(dian)(dian)地暖(nuan)(nuan)系統(tong)。隨著人們生活水平的(de)提高(gao)，加上電(dian)(dian)(dian)地暖(nuan)(nuan)技術的(de)逐(zhu)漸成(cheng)熟，不管在南方，還是(shi)北(bei)方，安(an)(an)(an)裝(zhuang)(zhuang)電(dian)(dian)(dian)地暖(nuan)(nuan)的(de)特別多。在安(an)(an)(an)裝(zhuang)(zhuang)的(de)過(guo)程(cheng)中，一(yi)定要安(an)(an)(an)裝(zhuang)(zhuang)步驟，正(zheng)確(que)進(jin)行安(an)(an)(an)裝(zhuang)(zhuang)，才能給您(nin)提供(gong)一(yi)個安(an)(an)(an)全、溫(wen)暖(nuan)(nuan)的(de)冬天。 碳(tan)纖(xian)維(wei)發熱電(dian)(dian)(dian)纜(lan)安(an)(an)(an)裝(zhuang)(zhuang)程(cheng)序 1、安(an)(an)(an)裝(zhuang)(zhuang)電(dian)(dian)(dian)地熱式地暖(nuan)(nuan)前，要測試碳(tan)纖(xian)維(wei)發熱電(dian)(dian)(dian)纜(lan)的(de)標稱(cheng)電(dian)(dian)(dian)阻及絕(jue)緣(yuan)電(dian)(dian)(dian)阻，以保證安(an)(an)(an)裝(zhuang)(zhuang)的(de)碳(tan)纖(xian)

    2020-06-08 51dianlan