危害電(dian)纜線絕緣電(dian)阻的(de)決策要素(su)是啥 

    一、溫度(du)(du)(du)的(de)危害溫度(du)(du)(du)升高(gao)，絕(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)指(zhi)數(shu)降低，它是因(yin)為熱運(yun)動(dong)增(zeng)加(jia)，離子的(de)造(zao)成和轉移都有一定的(de)增(zeng)加(jia)，礦(kuang)物絕(jue)緣(yuan)電(dian)(dian)(dian)纜，在電(dian)(dian)(dian)壓的(de)作用(yong)下，由離子健身運(yun)動(dong)所產(chan)生的(de)傳導(dao)電(dian)(dian)(dian)流擴大，因(yin)此絕(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)降低。基礎理論和實(shi)踐活(huo)動(dong)說明，絕(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)指(zhi)數(shu)隨(sui)溫度(du)(du)(du)增(zeng)加(jia)按指(zhi)數(shu)值式降低，而(er)氧化還原電(dian)(dian)(dian)位則隨(sui)溫度(du)(du)(du)上升而(er)按指(zhi)數(shu)值式擴大。 

    二、電場強度的危害當電場強度在較為低的范疇內，離子的遷移率伴隨著電場強度增加而增加，成占比關聯，離子電流量與電場強度聽從歐姆定律，當電場強度較為高時，離子遷移率隨電場強度的增加而提高的發展趨勢慢慢由線性相關變成指數值關聯，當貼近穿透時還會繼續出現很多的電子器件轉移，這時候絕緣電阻指數極大地減少。

BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)是(shi)(shi)礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)中比(bi)(bi)較(jiao)常(chang)見的(de)(de)(de)(de)一(yi)種，也是(shi)(shi)應(ying)用范(fan)圍蕞廣(guang)泛的(de)(de)(de)(de)一(yi)種。BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)主要(yao)由無機物(wu)(wu)(wu)(wu)(金屬銅(tong)和氧(yang)化(hua)鎂1粉末(mo))組成(cheng)，所(suo)以(yi)導電(dian)(dian)(dian)(dian)性(xing)極(ji)1好，不能(neng)(neng)燃(ran)燒。銅(tong)管作(zuo)為外護套的(de)(de)(de)(de)設計可(ke)(ke)以(yi)作(zuo)為接地線(xian)使用，什么是(shi)(shi)礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)，燃(ran)燒或助燃(ran)是(shi)(shi)不可(ke)(ke)能(neng)(neng)的(de)(de)(de)(de)。因為銅(tong)的(de)(de)(de)(de)熔點(dian)(dian)是(shi)(shi)1083攝氏度，礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)層在1000攝氏度以(yi)上，所(suo)以(yi)這種電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)在銅(tong)熔點(dian)(dian)附近(jin)發生火(huo)災時也能(neng)(neng)維持(chi)供電(dian)(dian)(dian)(dian)，是(shi)(shi)真正(zheng)(zheng)的(de)(de)(de)(de)防火(huo)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)。它可(ke)(ke)以(yi)通過(guo)BS6387 C、w和z測試。由于礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)實(shi)際(ji)正(zheng)(zheng)常(chang)工(gong)作(zuo)溫度可(ke)(ke)達250，考慮到(dao)終端(duan)密封(feng)材(cai)料的(de)(de)(de)(de)需要(yao)和安全(quan)性(xing)，IEC  60702規(gui)定礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)連(lian)續工(gong)作(zuo)溫度為105。但是(shi)(shi)礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)承載能(neng)(neng)力(li)要(yao)比(bi)(bi)其他電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)高(gao)很(hen)多，因為礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)導熱性(xing)能(neng)(neng)比(bi)(bi)塑料好。因此，礦物(wu)(wu)(wu)(wu)絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)分(fen)支(zhi)，在相(xiang)同(tong)的(de)(de)(de)(de)工(gong)作(zuo)溫度下(xia)，承載能(neng)(neng)力(li)更大。大于16mm2的(de)(de)(de)(de)線(xian)路可(ke)(ke)以(yi)減(jian)一(yi)節，不允(yun)許(xu)任何(he)人觸摸(mo)的(de)(de)(de)(de)地方可(ke)(ke)以(yi)減(jian)兩(liang)節

礦物(wu)電(dian)纜由銅芯、礦物(wu)絕緣材(cai)料和銅等金屬護(hu)套組(zu)成。它除了具(ju)有(you)良好(hao)(hao)的導電(dian)性(xing)、機械物(wu)理性(xing)能和阻燃性(xing)外，還具(ju)有(you)良好(hao)(hao)的不燃性(xing)。在發(fa)生火(huo)災時，這種(zhong)電(dian)纜既(ji)能保證(zheng)火(huo)災持續(xu)期(qi)間(jian)的消防電(dian)源(yuan)(yuan)，又能避(bi)免(mian)燃燒延遲和有(you)毒煙(yan)霧(wu)。是現代建(jian)筑干線保證(zheng)電(dian)力輸送不可缺少的防火(huo)電(dian)纜，防火(huo)電(dian)纜廠家-礦物(wu)電(dian)纜適用于消防電(dian)源(yuan)(yuan)、不間(jian)斷電(dian)源(yuan)(yuan)、應(ying)急(ji)照明(ming)電(dian)源(yuan)(yuan)等供電(dian)線路。

礦物絕緣電(dian)(dian)(dian)纜采用金(jin)屬(shu)護套作為保(bao)護層，可燃氣(qi)體、油氣(qi)和火焰無法到達與(yu)電(dian)(dian)(dian)纜相(xiang)連(lian)的(de)電(dian)(dian)(dian)氣(qi)設備，因此(ci)電(dian)(dian)(dian)纜具有(you)防爆特(te)性(xing)。耐腐蝕(shi)性(xing)：由(you)于(yu)銅的(de)耐腐蝕(shi)性(xing)更好(hao)，礦物絕緣電(dian)(dian)(dian)纜型號，在正常使(shi)用環(huan)(huan)境(jing)(jing)下不(bu)需(xu)要額外保(bao)護。在特(te)殊環(huan)(huan)境(jing)(jing)條件(jian)下，如對(dui)銅有(you)強腐蝕(shi)性(xing)的(de)環(huan)(huan)境(jing)(jing)，在電(dian)(dian)(dian)纜上加一層PVC護套，使(shi)其具有(you)良好(hao)的(de)耐腐蝕(shi)性(xing)能。抗(kang)機械(xie)損傷，使(shi)用壽命長，無鹵***。抗(kang)機械(xie)損傷：由(you)于(yu)電(dian)(dian)(dian)纜的(de)金(jin)屬(shu)護套具有(you)一定(ding)的(de)強度和韌(ren)性(xing)，當電(dian)(dian)(dian)纜彎曲、壓扁、扭曲時，芯線之間、芯線與(yu)護套之間的(de)相(xiang)對(dui)位置(zhi)保(bao)持(chi)不(bu)變(bian)，不(bu)會發生(sheng)短路。并且電(dian)(dian)(dian)氣(qi)性(xing)能不(bu)會受到影(ying)響