架(jia)(jia)空(kong)電(dian)(dian)(dian)纜(lan)(全稱架(jia)(jia)空(kong)絕緣電(dian)(dian)(dian)纜(lan)),是(shi)裝有絕緣層和(he)保護外皮的架(jia)(jia)空(kong)導線,采用類似于(yu)交(jiao)聯電(dian)(dian)(dian)纜(lan)生(sheng)產工(gong)藝制造的一種專用電(dian)(dian)(dian)纜(lan),是(shi)介于(yu)架(jia)(jia)空(kong)導線和(he)地下電(dian)(dian)(dian)纜(lan)之間(jian)的新(xin)的輸電(dian)(dian)(dian)方(fang)式 。
架空(kong)絕緣電(dian)纜主要(yao)特點:
1、 供電可靠性高
采用架空(kong)電纜可(ke)大大降低各類的短路故(gu)障(zhang)(zhang)(特別是架空(kong)裸導線(xian)常(chang)見的閃絡(luo)性故(gu)障(zhang)(zhang)),與架空(kong)裸導線(xian)相比,故(gu)障(zhang)(zhang)率要低4-6倍。
2 、供電安全性好
采用架(jia)空電(dian)纜(lan)使人身觸電(dian)傷亡(wang)事故大為減(jian)少 。可見在架(jia)空電(dian)纜(lan)通電(dian)時,當人體或其它動物不慎(shen)觸及電(dian)纜(lan)絕緣表(biao)面時,只要電(dian)纜(lan)未(wei)擊穿,對人畜均不會造成危害(hai)。
3、 架(jia)設和維修方便(bian)
架(jia)空(kong)電(dian)纜可(ke)在(zai)任(ren)何種(zhong)類的(de)(de)(de)(de)桿(gan)塔上(shang)(shang)(shang)(shang)(shang)架(jia)設(she)(she),也(ye)可(ke)沿墻架(jia)設(she)(she),特(te)(te)殊情(qing)況(kuang)下還(huan)可(ke)在(zai)樹叢中穿行,直接用(yong)金(jin)具固定(ding)在(zai)樹桿(gan)上(shang)(shang)(shang)(shang)(shang)。可(ke)以單回路架(jia)設(she)(she),也(ye)可(ke)以在(zai)同(tong)一(yi)電(dian)桿(gan)上(shang)(shang)(shang)(shang)(shang)架(jia)設(she)(she)多回線(xian)路,而不(bu)要求有寬闊的(de)(de)(de)(de)“電(dian)氣走廊”。在(zai)安裝上(shang)(shang)(shang)(shang)(shang)可(ke)就便架(jia)設(she)(she)在(zai)原架(jia)空(kong)線(xian)路上(shang)(shang)(shang)(shang)(shang),利用(yong)原有的(de)(de)(de)(de)橫擔(dan)和瓷瓶(ping),也(ye)可(ke)采(cai)用(yong)全套的(de)(de)(de)(de)配套金(jin)具及(ji)附件。還(huan)可(ke)根據現場實際(ji)情(qing)況(kuang),請廠家特(te)(te)制或(huo)自制一(yi)些特(te)(te)殊的(de)(de)(de)(de)金(jin)具,因此施工(gong)極(ji)為方(fang)便。架(jia)空(kong)電(dian)纜也(ye)不(bu)必進(jin)行專門的(de)(de)(de)(de)巡視檢(jian)查,而且也(ye)不(bu)會(hui)因樹枝閃絡及(ji)居民亂扔雜物,或(huo)吊(diao)車吊(diao)臂誤碰撞等而形成短(duan)路跳閘事故,從而大大減輕了線(xian)路的(de)(de)(de)(de)維護(hu)與檢(jian)修工(gong)作。
4 、經濟性合理
雖然(ran)采用(yong)架(jia)空(kong)(kong)電(dian)纜(lan)比(bi)(bi)采用(yong)架(jia)空(kong)(kong)裸導線(xian)(xian)(xian)在價格上(shang)要(yao)貴一些(xie),但比(bi)(bi)普通的(de)地(di)下安裝電(dian)纜(lan)要(yao)便宜。因(yin)而采用(yong)架(jia)空(kong)(kong)電(dian)纜(lan)雖然(ran)一次性投資(zi)略高,但綜(zong)合(he)(he)其(qi)它的(de)因(yin)素,其(qi)運(yun)行費用(yong)將明(ming)顯低于(yu)架(jia)空(kong)(kong)裸導線(xian)(xian)(xian)。如采用(yong)架(jia)空(kong)(kong)電(dian)纜(lan)使得線(xian)(xian)(xian)路廊縮小,甚至多(duo)回(hui)線(xian)(xian)(xian)路共用(yong)一個桿塔,減少(shao)了征地(di)占地(di)費用(yong),運(yun)行中也無需砍(kan)(kan)伐修剪線(xian)(xian)(xian)下樹木,節(jie)省了砍(kan)(kan)伐修剪費,最主要(yao)的(de)是(shi)減少(shao)了線(xian)(xian)(xian)路故障(zhang)及其(qi)所造(zao)成的(de)直接(jie)或間接(jie)損(sun)失費用(yong)。因(yin)而其(qi)綜(zong)合(he)(he)造(zao)價顯然(ran)更(geng)(geng)低、更(geng)(geng)經濟、更(geng)(geng)合(he)(he)理。