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138-9810-2027
電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(lan)(lan)是(shi)用于(yu)傳輸(shu)和(he)分配電(dian)(dian)(dian)能的(de)電(dian)(dian)(dian)纜(lan)(lan),電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(lan)(lan)常用于(yu)城市地下(xia)電(dian)(dian)(dian)網(wang)、發電(dian)(dian)(dian)站引出(chu)線(xian)路(lu)、工礦企業內部供電(dian)(dian)(dian)及過(guo)江海水(shui)下(xia)輸(shu)電(dian)(dian)(dian)線(xian)。在電(dian)(dian)(dian)力(li)線(xian)路(lu)中(zhong)(zhong),電(dian)(dian)(dian)纜(lan)(lan)所占(zhan)比重正(zheng)逐漸增加。電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(lan)(lan)是(shi)在電(dian)(dian)(dian)力(li)系統的(de)主干線(xian)路(lu)中(zhong)(zhong)用以傳輸(shu)和(he)分配大功率電(dian)(dian)(dian)能的(de)電(dian)(dian)(dian)纜(lan)(lan)產品。
電力電纜
電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)是用(yong)于傳輸(shu)和分配電(dian)(dian)(dian)(dian)能的(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan),電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)常用(yong)于城市地下電(dian)(dian)(dian)(dian)網(wang)、發電(dian)(dian)(dian)(dian)站(zhan)引(yin)出(chu)線(xian)路、工礦企業內部供電(dian)(dian)(dian)(dian)及(ji)過江海水下輸(shu)電(dian)(dian)(dian)(dian)線(xian)。在電(dian)(dian)(dian)(dian)力線(xian)路中,電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)所占比重正逐(zhu)漸增加。電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)是在電(dian)(dian)(dian)(dian)力系(xi)統的(de)主干線(xian)路中用(yong)以傳輸(shu)和分配大功率電(dian)(dian)(dian)(dian)能的(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)產品,包括1-500KV以及(ji)以上各(ge)種電(dian)(dian)(dian)(dian)壓(ya)等級,各(ge)種絕緣的(de)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)。
中文名
電力電纜
基本簡介
電力電纜的(de)使用(yong)至今已有(you)百年
主要分(fen)類
分(fen)類(lei):按電壓等(deng)級分(fen)
簡(jian)介:電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)使用(yong)至今已有百(bai)余年(nian)歷史(shi)。1879年(nian),美國發(fa)明家T.A.愛迪(di)生在(zai)銅棒(bang)上包繞黃(huang)麻(ma)并將其(qi)穿入鐵管內,然后填充瀝(li)青混合物(wu)制成(cheng)(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)纜(lan)。他將此電(dian)(dian)(dian)(dian)(dian)纜(lan)敷(fu)設(she)于紐約,開創(chuang)了(le)地下輸電(dian)(dian)(dian)(dian)(dian)。次年(nian),英國人卡倫德發(fa)明瀝(li)青浸漬(zi)紙絕緣(yuan)電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)。1889年(nian),英國人S.Z.費蘭(lan)梯在(zai)倫敦與德特福德之(zhi)間(jian)敷(fu)設(she)了(le)10千(qian)伏油浸紙絕緣(yuan)電(dian)(dian)(dian)(dian)(dian)纜(lan)。1908年(nian),英國建成(cheng)(cheng)(cheng)20千(qian)伏電(dian)(dian)(dian)(dian)(dian)纜(lan)網。電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)得到越來越廣的(de)(de)應用(yong)。1911年(nian),德國敷(fu)設(she)成(cheng)(cheng)(cheng)60千(qian)伏高(gao)壓電(dian)(dian)(dian)(dian)(dian)纜(lan),開始(shi)了(le)高(gao)壓電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)發(fa)展(zhan)。1913年(nian),德國人M.霍希施泰(tai)特研制成(cheng)(cheng)(cheng)分相屏蔽電(dian)(dian)(dian)(dian)(dian)纜(lan),改善了(le)電(dian)(dian)(dian)(dian)(dian)纜(lan)內部(bu)電(dian)(dian)(dian)(dian)(dian)場分布,消除了(le)絕緣(yuan)表面的(de)(de)正切(qie)應力(li),成(cheng)(cheng)(cheng)為電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)發(fa)展(zhan)中的(de)(de)里程碑。1952年(nian),瑞典在(zai)北(bei)部(bu)發(fa)電(dian)(dian)(dian)(dian)(dian)廠敷(fu)設(she)了(le)380千(qian)伏超高(gao)壓電(dian)(dian)(dian)(dian)(dian)纜(lan),實(shi)現了(le)超高(gao)壓電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)應用(yong)。到80年(nian)代已制成(cheng)(cheng)(cheng)1100千(qian)伏、1200千(qian)伏的(de)(de)特高(gao)壓電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)。
分類:按電壓等級分
按(an)電(dian)(dian)(dian)壓(ya)等級(ji)可分為中、低壓(ya)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(35千(qian)伏(fu)(fu)及以下)、高(gao)壓(ya)電(dian)(dian)(dian)纜(lan)(110千(qian)伏(fu)(fu)以上(shang))、超高(gao)壓(ya)電(dian)(dian)(dian)纜(lan)(275~800千(qian)伏(fu)(fu))以及特高(gao)壓(ya)電(dian)(dian)(dian)纜(lan)(1000千(qian)伏(fu)(fu)及以上(shang))。此(ci)外,還可按(an)電(dian)(dian)(dian)流制分為交流電(dian)(dian)(dian)纜(lan)和(he)直流電(dian)(dian)(dian)纜(lan)。
按絕緣(yuan)材料分(fen)
1、油浸(jin)紙絕(jue)緣(yuan)電(dian)力(li)電(dian)纜(lan)以油浸(jin)紙作絕(jue)緣(yuan)的電(dian)力(li)電(dian)纜(lan)。其應用(yong)歷史最長(chang)。它安(an)全可(ke)靠,使用(yong)壽(shou)命長(chang),價格低廉。主要缺點是敷設(she)受落差(cha)限(xian)制(zhi)。自從開(kai)發出(chu)不滴流浸(jin)紙絕(jue)緣(yuan)后(hou),解決了落差(cha)限(xian)制(zhi)問題(ti),使油浸(jin)紙絕(jue)緣(yuan)電(dian)纜(lan)得(de)以繼(ji)續廣泛應用(yong)。
2、塑料(liao)絕緣(yuan)(yuan)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan) 絕緣(yuan)(yuan)層為擠壓塑料(liao)的電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)。常(chang)用的塑料(liao)有聚(ju)氯乙烯、聚(ju)乙烯、交(jiao)聯聚(ju)乙烯。塑料(liao)電(dian)(dian)(dian)纜(lan)結(jie)構(gou)簡單,制造(zao)加工方(fang)便,重量輕,敷設安裝方(fang)便,不受敷設落差限(xian)制。因此廣泛應用作中低(di)壓電(dian)(dian)(dian)纜(lan),并有取(qu)代(dai)粘(zhan)性浸漬油紙電(dian)(dian)(dian)纜(lan)的趨勢。其(qi)最(zui)大缺點是(shi)存在樹枝化擊穿(chuan)現象,這限(xian)制了(le)它在更高電(dian)(dian)(dian)壓的使用。
3、橡(xiang)皮絕(jue)緣電(dian)力電(dian)纜(lan) 絕(jue)緣層為橡(xiang)膠加上各種配(pei)合劑,經過充分(fen)混(hun)煉(lian)后擠包在導電(dian)線芯上,經過加溫硫化而成。它柔軟(ruan),富(fu)有彈性,適合于移動頻繁、敷(fu)設(she)彎曲(qu)半(ban)徑小(xiao)的場合。
常用作絕緣的(de)膠(jiao)料有天然膠(jiao)-丁苯膠(jiao)混合物,乙丙膠(jiao)、丁基膠(jiao)等。
按(an)電壓等(deng)級分
1、低壓電纜:適(shi)用于固定(ding)敷設在交流50Hz,額定(ding)電壓3kv及以下的輸(shu)配電線路上作輸(shu)送電能(neng)用。
2、中低壓(ya)電纜:(一般指35KV及以下):聚(ju)氯乙(yi)烯絕(jue)緣電纜,聚(ju)乙(yi)烯絕(jue)緣電纜,交(jiao)聯聚(ju)乙(yi)烯絕(jue)緣電纜等。
3、高壓電纜:(一(yi)般為110KV及以上(shang)):聚乙烯(xi)電纜和(he)交聯聚乙烯(xi)絕緣電纜等。
4、超高壓電纜:(275~800千(qian)伏)。
5、特高壓電纜:(1000千(qian)伏(fu)及以(yi)上)。
基(ji)本結構(gou):電(dian)力電(dian)纜的基(ji)本結構(gou)由線(xian)芯(導體)、絕(jue)緣(yuan)層(ceng)、屏蔽層(ceng)和(he)保護(hu)層(ceng)四部(bu)分組成。
1.線芯是(shi)電力(li)電纜的導電部分,用來(lai)輸(shu)送電能(neng),是(shi)電力(li)電纜的主要部分。
2.絕緣層是將線(xian)芯與大地(di)以及不(bu)同相(xiang)的(de)(de)線(xian)芯間在電氣上彼此隔離,保證電能輸送(song),是電力(li)電纜結構中不(bu)可缺少的(de)(de)組(zu)成部分。
3.15KV及以上的電力(li)電纜一般都有(you)導體屏蔽層和絕緣屏蔽層。
4.保(bao)(bao)護層的作用(yong)是保(bao)(bao)護電力電纜免受外界雜質和水(shui)分的侵(qin)入,以及防止外力直接損壞電力電纜。
主要優(you)點:
1占(zhan)(zhan)地(di)少(shao)。一般(ban)埋設(she)于土壤中或敷(fu)設(she)于室內,溝(gou)道,隧(sui)道中,線(xian)間絕緣距(ju)離小,不用桿塔,占(zhan)(zhan)地(di)少(shao),基本(ben)不占(zhan)(zhan)地(di)面上空間。
2可靠性(xing)高。受氣候條(tiao)件和(he)周圍環境影響小,傳輸性(xing)能穩定,可靠性(xing)高。
3具有向超(chao)高壓,大容量發展(zhan)的(de)更為有利的(de)條(tiao)件(jian),如低溫,超(chao)導電力電纜(lan)等。
4分布電容較大。
5維護工作量少。
6電擊可能性小。
型號說明
電(dian)力電(dian)纜的(de)型號
1.用漢語拼音(yin)第一個字母的(de)大寫表(biao)(biao)示(shi)絕緣種類、導體材(cai)料、內護層(ceng)材(cai)料和結構特點。如用Z代(dai)表(biao)(biao)紙(zhi)(zhi);L代(dai)表(biao)(biao)鋁(lv);Q代(dai)表(biao)(biao)鉛(qian);F代(dai)表(biao)(biao)分相(fen);ZR代(dai)表(biao)(biao)阻燃(ran)(zuran);NH代(dai)表(biao)(biao)耐(nai)火(naihuo)。
2.用數(shu)字(zi)表(biao)(biao)示(shi)(shi)外(wai)護(hu)層(ceng)(ceng)(ceng)構成,有二位數(shu)字(zi)。無數(shu)字(zi)代表(biao)(biao)無鎧裝(zhuang)(zhuang)層(ceng)(ceng)(ceng),無外(wai)被層(ceng)(ceng)(ceng)。第(di)一位數(shu)字(zi)表(biao)(biao)示(shi)(shi)鎧裝(zhuang)(zhuang),第(di)二位數(shu)字(zi)表(biao)(biao)示(shi)(shi)外(wai)被,如(ru)粗鋼絲鎧裝(zhuang)(zhuang)纖維外(wai)被表(biao)(biao)示(shi)(shi)為41。
3.電纜型(xing)號(hao)按電纜結構的排(pai)列一般依次序為:絕緣材(cai)料(liao);導體(ti)材(cai)料(liao);內護層(ceng);外護層(ceng)。
4.電(dian)(dian)纜產品用型(xing)號(hao)、額定電(dian)(dian)壓和規(gui)格表示。其方(fang)法是(shi)在型(xing)號(hao)后(hou)再加上說明額定電(dian)(dian)壓、芯數和標稱截(jie)面積的。
型號詳細說明
(1)類別(bie):H——市內通信電(dian)纜(lan)HP——配(pei)線電(dian)纜(lan)HJ——局用(yong)電(dian)纜(lan)
(2)絕(jue)緣:Y——聚(ju)乙烯絕(jue)緣YF——泡沫(mo)聚(ju)烯烴絕(jue)緣YP——泡沫(mo)/實心皮聚(ju)烯烴絕(jue)緣
(3)內護(hu)層:A——涂塑鋁帶(dai)粘(zhan)接屏蔽聚乙(yi)烯護(hu)套S——鋁,鋼雙層金屬帶(dai)屏蔽聚乙(yi)烯護(hu)套 V——聚氯乙(yi)烯護(hu)套
(4)特征:T——石(shi)油(you)膏(gao)填充(chong)G——高頻隔(ge)離C——自承式
(5)外護(hu)層(ceng):23——雙層(ceng)防(fang)腐(fu)鋼帶繞包銷裝聚(ju)乙烯外被層(ceng)
33——單層(ceng)細鋼絲(si)鎧裝聚(ju)乙烯被層(ceng)
43——單層(ceng)粗鋼絲(si)鎧裝聚乙烯被層(ceng)
53——單層(ceng)鋼帶皺紋(wen)縱包鎧(kai)裝聚(ju)乙烯外(wai)被(bei)層(ceng)
553——雙層鋼帶皺紋縱包鎧(kai)裝(zhuang)聚乙烯外被層
2) BV 銅芯聚(ju)(ju)氯乙(yi)烯(xi)絕緣電(dian)線;BLV 鋁芯聚(ju)(ju)氯乙(yi)烯(xi)絕緣電(dian)線;
BVV 銅芯聚(ju)(ju)(ju)氯(lv)(lv)乙烯(xi)(xi)絕(jue)緣聚(ju)(ju)(ju)氯(lv)(lv)乙烯(xi)(xi)護套電線(xian);BLVV 鋁芯聚(ju)(ju)(ju)氯(lv)(lv)乙烯(xi)(xi)絕(jue)緣聚(ju)(ju)(ju)氯(lv)(lv)乙烯(xi)(xi)護套電線(xian);
BVR 銅芯聚氯(lv)(lv)乙烯絕(jue)緣軟線;RV 銅芯聚氯(lv)(lv)乙烯絕(jue)緣安裝軟線;
RVB 銅芯聚氯乙(yi)烯絕緣平型(xing)連接線軟線;BVS 銅芯聚氯乙(yi)烯絕緣絞型(xing)軟線;
RVV 銅芯(xin)聚氯乙(yi)(yi)烯(xi)絕緣(yuan)聚氯乙(yi)(yi)烯(xi)護套軟(ruan)線;BYR 聚乙(yi)(yi)烯(xi)絕緣(yuan)軟(ruan)電線;
BYVR 聚乙(yi)(yi)(yi)烯(xi)(xi)絕緣聚氯乙(yi)(yi)(yi)烯(xi)(xi)護(hu)套軟線(xian);RY 聚乙(yi)(yi)(yi)烯(xi)(xi)絕緣軟線(xian);
RYV 聚乙烯絕緣聚氯乙烯護套(tao)軟線(xian)
3)WD:無(wu)鹵低(di)煙型(xing)ZR: 阻燃型(xing)NH:耐火型(xing)DH:防火型(xing)
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