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鋁合金電力電纜|什么是鋁合金電力電纜

鋁合金電力電纜

新型材料電力電纜鋁合金電力電纜是以(yi)AA8030 系列(lie)鋁(lv)合(he)金(jin)材(cai)料為導體(ti)(ti),采用特殊輥壓成型型線絞合(he)生產(chan)工藝和(he)(he)退(tui)火(huo)處(chu)理等先進技術的(de)新型材(cai)料電(dian)力(li)電(dian)纜(lan)。合(he)金(jin)電(dian)力(li)電(dian)纜(lan)彌(mi)補了以(yi)往純鋁(lv)電(dian)纜(lan)的(de)不足,雖然沒(mei)有提高了電(dian)纜(lan)的(de)導電(dian)性能(neng),但彎曲性能(neng)、抗蠕(ru)變(bian)性能(neng)和(he)(he)耐(nai)腐蝕(shi)性能(neng)等卻大(da)(da)大(da)(da)提高,能(neng)夠保證(zheng)電(dian)纜(lan)在長時(shi)間過載(zai)和(he)(he)過熱時(shi)保持連續性能(neng)穩(wen)定,采用AA-8030 系列(lie)鋁(lv)合(he)金(jin)導體(ti)(ti),可以(yi)大(da)(da)大(da)(da)提高鋁(lv)合(he)金(jin)電(dian)纜(lan)的(de)導電(dian)率、耐(nai)高溫性,同時(shi)解決了純鋁(lv)導體(ti)(ti)、蠕(ru)變(bian)等問題。

鋁合金電力電纜相關優點

鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)所(suo)具(ju)備(bei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)良好的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)機械性(xing)(xing)(xing)能(neng)和(he)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)能(neng),使(shi)得(de)它可(ke)(ke)(ke)以廣泛(fan)應用(yong)(yong)于(yu)國(guo)民經濟的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)各個(ge)領域。抗(kang)(kang)蠕(ru)變性(xing)(xing)(xing)能(neng):鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)導(dao)(dao)(dao)體(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)材料(liao)與(yu)退(tui)火(huo)處理工(gong)(gong)藝(yi)減少了(le)(le)(le)導(dao)(dao)(dao)體(ti)(ti)(ti)在(zai)(zai)(zai)受(shou)(shou)熱(re)(re)和(he)壓力下的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)“蠕(ru)變”傾向,相對于(yu)純(chun)(chun)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv),抗(kang)(kang)蠕(ru)變性(xing)(xing)(xing)能(neng)提高(gao)(gao)(gao)(gao)300%,避免了(le)(le)(le)由(you)于(yu)冷流(liu)或蠕(ru)變引起的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)松弛問題。抗(kang)(kang)拉強(qiang)(qiang)(qiang)度(du)(du)(du)(du)和(he)延伸率(lv)(lv):鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)導(dao)(dao)(dao)體(ti)(ti)(ti)相比(bi)于(yu)純(chun)(chun)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)導(dao)(dao)(dao)體(ti)(ti)(ti),由(you)于(yu)加(jia)入(ru)了(le)(le)(le)特(te)殊(shu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)成分(fen)并采(cai)用(yong)(yong)了(le)(le)(le)特(te)殊(shu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)加(jia)工(gong)(gong)工(gong)(gong)藝(yi),極大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)提高(gao)(gao)(gao)(gao)了(le)(le)(le)抗(kang)(kang)拉強(qiang)(qiang)(qiang)度(du)(du)(du)(du),且延伸率(lv)(lv)提高(gao)(gao)(gao)(gao)到30%,柔(rou)韌性(xing)(xing)(xing)比(bi)銅(tong)(tong)高(gao)(gao)(gao)(gao)33%,彈性(xing)(xing)(xing)低(di)(di)(di)40%,使(shi)用(yong)(yong)更加(jia)安(an)全可(ke)(ke)(ke)靠(kao)(kao)。熱(re)(re)膨(peng)(peng)脹(zhang)系數:熱(re)(re)膨(peng)(peng)脹(zhang)系數用(yong)(yong)來計(ji)算在(zai)(zai)(zai)溫度(du)(du)(du)(du)變化(hua)(hua)時(shi)材料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)尺寸變化(hua)(hua)。鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)膨(peng)(peng)脹(zhang)系數與(yu)銅(tong)(tong)相當,多年來鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)連(lian)接(jie)(jie)器(qi)一(yi)(yi)直可(ke)(ke)(ke)靠(kao)(kao)地用(yong)(yong)于(yu)銅(tong)(tong)和(he)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)導(dao)(dao)(dao)體(ti)(ti)(ti),且當今使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)部分(fen)電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)(qi)連(lian)接(jie)(jie)器(qi)都是用(yong)(yong)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)制(zhi)造的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de),這(zhe)尤(you)其(qi)(qi)適合(he)(he)(he)(he)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)。所(suo)以鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)導(dao)(dao)(dao)體(ti)(ti)(ti)與(yu)連(lian)接(jie)(jie)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)膨(peng)(peng)脹(zhang)和(he)收(shou)縮完(wan)全一(yi)(yi)致。連(lian)接(jie)(jie)性(xing)(xing)(xing)能(neng):用(yong)(yong)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)制(zhi)造的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)(qi)連(lian)接(jie)(jie)與(yu)用(yong)(yong)銅(tong)(tong)導(dao)(dao)(dao)體(ti)(ti)(ti)制(zhi)造的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)連(lian)接(jie)(jie)一(yi)(yi)樣安(an)全穩定。 鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)成分(fen)大(da)大(da)改(gai)進了(le)(le)(le)其(qi)(qi)連(lian)接(jie)(jie)性(xing)(xing)(xing)能(neng),當導(dao)(dao)(dao)體(ti)(ti)(ti)退(tui)火(huo)時(shi),添加(jia)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)鐵產生高(gao)(gao)(gao)(gao)強(qiang)(qiang)(qiang)度(du)(du)(du)(du)抗(kang)(kang)蠕(ru)變性(xing)(xing)(xing)能(neng),即使(shi)在(zai)(zai)(zai)長時(shi)間(jian)過載(zai)和(he)過熱(re)(re)時(shi),也(ye)能(neng)保證連(lian)接(jie)(jie)穩定。自(zi)(zi)重(zhong)承載(zai)力強(qiang)(qiang)(qiang):鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)改(gai)善了(le)(le)(le)純(chun)(chun)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)抗(kang)(kang)拉強(qiang)(qiang)(qiang)度(du)(du)(du)(du),鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)可(ke)(ke)(ke)支(zhi)撐(cheng)4000米(mi)長度(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)自(zi)(zi)重(zhong),銅(tong)(tong)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)只(zhi)能(neng)支(zhi)撐(cheng)2750米(mi)。這(zhe)種(zhong)優勢(shi)在(zai)(zai)(zai)大(da)跨度(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)建筑(如體(ti)(ti)(ti)育場館)配線(xian)時(shi)體(ti)(ti)(ti)現得(de)尤(you)為突出。防腐(fu)蝕性(xing)(xing)(xing)能(neng):鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)固有的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)防腐(fu)性(xing)(xing)(xing)能(neng)源自(zi)(zi)當鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)表面與(yu)空氣(qi)(qi)(qi)接(jie)(jie)觸時(shi)形成薄(bo)而(er)堅固的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)氧化(hua)(hua)層,這(zhe)種(zhong)氧化(hua)(hua)層特(te)別耐受(shou)(shou)各種(zhong)形式的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)腐(fu)蝕。柔(rou)韌性(xing)(xing)(xing):鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)有很好的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)彎曲性(xing)(xing)(xing)能(neng),其(qi)(qi)獨特(te)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)配方(fang)、加(jia)工(gong)(gong)工(gong)(gong)藝(yi),使(shi)柔(rou)韌性(xing)(xing)(xing)大(da)幅提高(gao)(gao)(gao)(gao)。鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)比(bi)銅(tong)(tong)柔(rou)韌性(xing)(xing)(xing)高(gao)(gao)(gao)(gao)30%,反彈性(xing)(xing)(xing)比(bi)銅(tong)(tong)低(di)(di)(di)40%。一(yi)(yi)般銅(tong)(tong)纜(lan)(lan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)彎曲半徑(jing)(jing)(jing)為10~20倍外徑(jing)(jing)(jing),而(er)鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)彎曲半徑(jing)(jing)(jing)僅為7倍外徑(jing)(jing)(jing),更容易(yi)進行端子連(lian)接(jie)(jie)。鎧(kai)裝(zhuang)(zhuang)特(te)性(xing)(xing)(xing):鎧(kai)裝(zhuang)(zhuang)層提高(gao)(gao)(gao)(gao)了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)阻燃耐火(huo)級別,降低(di)(di)(di)了(le)(le)(le)火(huo)災的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)危險系數。鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)帶(dai)鎧(kai)裝(zhuang)(zhuang)結構相對于(yu)鋼帶(dai)鎧(kai)裝(zhuang)(zhuang),其(qi)(qi)重(zhong)量輕(qing),敷設便利,可(ke)(ke)(ke)免橋架安(an)裝(zhuang)(zhuang),能(neng)減少20%~40%的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)安(an)裝(zhuang)(zhuang)費用(yong)(yong)。根據(ju)使(shi)用(yong)(yong)場所(suo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)同(tong)可(ke)(ke)(ke)以選擇不(bu)同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)外護套層,使(shi)鎧(kai)裝(zhuang)(zhuang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)途更加(jia)廣泛(fan)。緊(jin)壓特(te)性(xing)(xing)(xing):采(cai)用(yong)(yong)超常規的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)緊(jin)壓技術,使(shi)緊(jin)壓系數達到0.93,而(er)異型線(xian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)緊(jin)壓系數能(neng)達到0.95,在(zai)(zai)(zai)國(guo)內屬于(yu)首創。通過最(zui)大(da)極限的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)緊(jin)壓,可(ke)(ke)(ke)以彌補鋁(lv)(lv)(lv)(lv)(lv)(lv)(lv)合(he)(he)(he)(he)金(jin)(jin)(jin)(jin)在(zai)(zai)(zai)體(ti)(ti)(ti)積(ji)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)率(lv)(lv)上的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)足,使(shi)絞合(he)(he)(he)(he)導(dao)(dao)(dao)體(ti)(ti)(ti)線(xian)芯如實心導(dao)(dao)(dao)體(ti)(ti)(ti)一(yi)(yi)般,明(ming)顯的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)降低(di)(di)(di)線(xian)芯外徑(jing)(jing)(jing),提高(gao)(gao)(gao)(gao)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)能(neng),在(zai)(zai)(zai)同(tong)等載(zai)流(liu)量情況下導(dao)(dao)(dao)體(ti)(ti)(ti)外徑(jing)(jing)(jing)只(zhi)比(bi)銅(tong)(tong)纜(lan)(lan)大(da)10%。

鋁合金電力電纜性能

一、耐(nai)(nai)(nai)腐(fu)蝕(shi)(shi)性(xing)能(neng)(neng)(neng)(neng):純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)的(de)(de)(de)耐(nai)(nai)(nai)腐(fu)蝕(shi)(shi)性(xing)能(neng)(neng)(neng)(neng)比(bi)銅好,但鋁(lv)(lv)(lv)合金(jin)(jin)的(de)(de)(de)耐(nai)(nai)(nai)腐(fu)蝕(shi)(shi)性(xing)能(neng)(neng)(neng)(neng)比(bi)純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)更優,因為鋁(lv)(lv)(lv)合金(jin)(jin)中加(jia)(jia)入的(de)(de)(de)稀(xi)土(tu)等化學元(yuan)(yuan)素可(ke)以(yi)增加(jia)(jia)鋁(lv)(lv)(lv)合金(jin)(jin)的(de)(de)(de)耐(nai)(nai)(nai)腐(fu)蝕(shi)(shi)性(xing)能(neng)(neng)(neng)(neng),特(te)別是(shi)耐(nai)(nai)(nai)電(dian)(dian)(dian)(dian)(dian)化學腐(fu)蝕(shi)(shi)性(xing)能(neng)(neng)(neng)(neng),解決(jue)了(le)(le)(le)(le)純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)長(chang)期(qi)在接(jie)頭處出(chu)(chu)現的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)化學腐(fu)蝕(shi)(shi)的(de)(de)(de)問題。二(er)(er)、機械性(xing)能(neng)(neng)(neng)(neng):第一,抗(kang)拉強度(du)(du)(du)和(he)延伸率(lv)。鋁(lv)(lv)(lv)合金(jin)(jin)導(dao)(dao)(dao)體相比(bi)于(yu)(yu)純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)導(dao)(dao)(dao)體,由于(yu)(yu)加(jia)(jia)入了(le)(le)(le)(le)特(te)殊的(de)(de)(de)成(cheng)分(fen)并采用(yong)(yong)了(le)(le)(le)(le)特(te)殊的(de)(de)(de)加(jia)(jia)工工藝,極(ji)大(da)的(de)(de)(de)提(ti)(ti)高(gao)(gao)了(le)(le)(le)(le)抗(kang)拉強度(du)(du)(du),且延伸率(lv)提(ti)(ti)高(gao)(gao)到30%,使(shi)(shi)用(yong)(yong)更加(jia)(jia)安全可(ke)靠。第二(er)(er),彎(wan)(wan)(wan)曲(qu)(qu)性(xing)能(neng)(neng)(neng)(neng)。鋁(lv)(lv)(lv)芯電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)彎(wan)(wan)(wan)曲(qu)(qu)性(xing)能(neng)(neng)(neng)(neng)很差(cha),彎(wan)(wan)(wan)曲(qu)(qu)很容易(yi)發生斷裂,鋁(lv)(lv)(lv)合金(jin)(jin)電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)彎(wan)(wan)(wan)曲(qu)(qu)半徑(jing)為7倍電(dian)(dian)(dian)(dian)(dian)纜(lan)外徑(jing),遠遠優于(yu)(yu)GB/T12706的(de)(de)(de)“電(dian)(dian)(dian)(dian)(dian)纜(lan)安裝(zhuang)時(shi)的(de)(de)(de)最小彎(wan)(wan)(wan)曲(qu)(qu)半徑(jing)”中規定(ding)的(de)(de)(de)10倍-20倍電(dian)(dian)(dian)(dian)(dian)纜(lan)外徑(jing)。第三(san),柔(rou)韌性(xing)能(neng)(neng)(neng)(neng)。純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)電(dian)(dian)(dian)(dian)(dian)纜(lan)只要幾次一定(ding)角度(du)(du)(du)的(de)(de)(de)扭轉,導(dao)(dao)(dao)體就(jiu)會出(chu)(chu)現開裂或折斷,易(yi)引發事故(gu),而鋁(lv)(lv)(lv)合金(jin)(jin)電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)能(neng)(neng)(neng)(neng)夠經(jing)受幾十次的(de)(de)(de)彎(wan)(wan)(wan)折,消除(chu)了(le)(le)(le)(le)以(yi)往(wang)純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)電(dian)(dian)(dian)(dian)(dian)纜(lan)安裝(zhuang)使(shi)(shi)用(yong)(yong)過程中出(chu)(chu)現事故(gu)的(de)(de)(de)隱患(huan),極(ji)大(da)地(di)提(ti)(ti)高(gao)(gao)了(le)(le)(le)(le)安全可(ke)靠性(xing)能(neng)(neng)(neng)(neng)。三(san)、導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)力:鋁(lv)(lv)(lv)合金(jin)(jin)導(dao)(dao)(dao)體是(shi)在純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)中添(tian)加(jia)(jia)稀(xi)土(tu)、鎂、銅、鐵等元(yuan)(yuan)素,經(jing)過合金(jin)(jin)工藝形成(cheng)的(de)(de)(de)新(xin)興導(dao)(dao)(dao)體材料。眾(zhong)所周(zhou)知,在鋁(lv)(lv)(lv)中加(jia)(jia)入其它多種(zhong)合金(jin)(jin)元(yuan)(yuan)素后,導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)能(neng)(neng)(neng)(neng)會下降,而通(tong)過工藝控制,可(ke)以(yi)使(shi)(shi)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)率(lv)恢復到接(jie)近純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)的(de)(de)(de)水平(ping),使(shi)(shi)其與純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)具有(you)相近的(de)(de)(de)載流量。四(si)、抗(kang)蠕變性(xing)能(neng)(neng)(neng)(neng):純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)抗(kang)蠕變性(xing)能(neng)(neng)(neng)(neng)差(cha),由通(tong)電(dian)(dian)(dian)(dian)(dian)斷電(dian)(dian)(dian)(dian)(dian)引起的(de)(de)(de)熱(re)脹冷縮在連(lian)接(jie)處會造成(cheng)蠕變量大(da),長(chang)時(shi)間(jian)之(zhi)后會出(chu)(chu)現松弛,接(jie)觸(chu)電(dian)(dian)(dian)(dian)(dian)阻增大(da)而引起過熱(re),容易(yi)引發事故(gu)。AA8000系(xi)列鋁(lv)(lv)(lv)合金(jin)(jin)的(de)(de)(de)抗(kang)蠕變性(xing)是(shi)純(chun)(chun)(chun)(chun)鋁(lv)(lv)(lv)導(dao)(dao)(dao)體的(de)(de)(de)300%,大(da)大(da)減少了(le)(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)纜(lan)接(jie)頭松弛的(de)(de)(de)可(ke)能(neng)(neng)(neng)(neng)性(xing),改善了(le)(le)(le)(le)導(dao)(dao)(dao)體的(de)(de)(de)連(lian)接(jie)狀況。