不同(tong)的(de)(de)環(huan)境以及用途，高(gao)壓電(dian)纜的(de)(de)敷設方式也各不相同(tong)，但(dan)總體來說(shuo)可以分為以下4類

1、埋(mai)(mai)設(she)式(shi)(shi)是(shi)指(zhi)將高(gao)壓電(dian)(dian)纜直接鋪設(she)在(zai)地下(根(gen)據地質(zhi)情況埋(mai)(mai)設(she)深度不(bu)(bu)同，一般超過0.7米(mi))。 對于沼澤和流(liu)沙等不(bu)(bu)穩定(ding)的(de)(de)地質(zhi)條件，也可以選擇(ze)線束電(dian)(dian)纜。 (其實(shi)，我們談過的(de)(de)鎧(kai)裝(zhuang)(zhuang)電(dian)(dian)纜其實(shi)是(shi)可以彎(wan)曲的(de)(de)組合(he)體(ti)，其特征是(shi)堅硬，電(dian)(dian)線電(dian)(dian)纜批發，采用埋(mai)(mai)設(she)式(shi)(shi)鋪設(she)對電(dian)(dian)纜自身的(de)(de)保護(hu)要(yao)求較高(gao)，適合(he)使用帶外部保護(hu)層的(de)(de)鎧(kai)裝(zhuang)(zhuang)電(dian)(dian)纜; 內(nei)部材料和導(dao)體(ti)不(bu)(bu)同，金屬套筒有絕緣層)

2、配管式是指在預先(xian)制作的配管內(nei)鋪設高(gao)壓電(dian)(dian)(dian)纜。導致功率損失和容量下(xia)降， 這(zhe)種敷設方式容易引起電(dian)(dian)(dian)纜過熱(re)，因此更(geng)適合(he)采用塑(su)料保護套電(dian)(dian)(dian)纜或裸(luo)套管電(dian)(dian)(dian)纜。

3、隧道(dao)式是指將(jiang)高(gao)(gao)壓電(dian)纜(lan)(lan)鋪設在電(dian)纜(lan)(lan)隧道(dao)內(nei)的橋架或(huo)支架上。 該敷設方式多應用于(yu)城(cheng)市內(nei)，適合使用裸護套(tao)電(dian)纜(lan)(lan)和阻燃塑(su)料保護套(tao)電(dian)纜(lan)(lan)，具有散熱好(hao)、易于(yu)檢修(xiu)的特點，但對電(dian)纜(lan)(lan)的阻燃性要求較(jiao)高(gao)(gao)。

4、架空式(shi)是指用(yong)(yong)立(li)棒(電(dian)(dian)線桿(gan))連接高壓電(dian)(dian)纜進行鋪(pu)設(she)。 但這種方(fang)式(shi)使電(dian)(dian)纜完(wan)全露在(zai)外部(bu)空間，這種鋪(pu)設(she)方(fang)式(shi)適用(yong)(yong)于(yu)地形(xing)平坦起(qi)伏小的(de)地區，容易受到外部(bu)環境和外力的(de)影響，適合采用(yong)(yong)有(you)外皮的(de)電(dian)(dian)纜和全塑電(dian)(dian)纜。

作為一名普通消(xiao)費者，我(wo)們很多時候對需要購(gou)(gou)買的(de)產品(pin)并不了(le)解(jie)，那我(wo)們該怎(zen)么選(xuan)擇到自(zi)己(ji)合(he)適的(de)產品(pin)呢？今天我(wo)們來聊聊怎(zen)么選(xuan)購(gou)(gou)合(he)適的(de)高壓電纜

首先(xian)、在購(gou)買高壓電纜的時候(hou)應(ying)該(gai)購(gou)買帶有“CCC”標志(zhi)的產品(pin)

其(qi)次、消費者在購買高壓電(dian)(dian)纜時，要(yao)檢查外(wai)(wai)包(bao)裝和(he)(he)合格證(zheng)上(shang)(shang)的(de)(de)(de)信息是(shi)否(fou)齊(qi)全，尤其(qi)是(shi)生產(chan)廠(chang)家(jia)的(de)(de)(de)名稱、地址、型號(hao)規格、電(dian)(dian)壓等(deng)級等(deng)。除了查看(kan)(kan)外(wai)(wai)包(bao)裝和(he)(he)合格證(zheng)上(shang)(shang)的(de)(de)(de)內容(rong)外(wai)(wai)，還應(ying)查看(kan)(kan)高壓電(dian)(dian)纜上(shang)(shang)的(de)(de)(de)印刷標(biao)識是(shi)否(fou)有(you)生產(chan)廠(chang)家(jia)的(de)(de)(de)名稱、型號(hao)和(he)(he)電(dian)(dian)壓等(deng)級，也可(ke)以要(yao)求查看(kan)(kan)商家(jia)的(de)(de)(de)相關的(de)(de)(de)檢驗(yan)報告(gao)和(he)(he)合格證(zheng)。

蕞后、高壓電纜的(de)(de)外(wai)觀應光滑，絕(jue)緣和護套層應無明顯(xian)缺陷(xian)、氣孔和粗糙，標識應印刷(shua)清晰，高壓電纜的(de)(de)觸(chu)感(gan)應無油膩感(gan)。如果可(ke)能(neng)的(de)(de)話，還應該(gai)檢查(cha)一(yi)下高壓電纜的(de)(de)橫截面(mian)。絕(jue)緣和護套應有一(yi)定(ding)(ding)的(de)(de)厚度，不(bu)(bu)(bu)得有嚴重的(de)(de)偏心。銅導體表面(mian)不(bu)(bu)(bu)應氧化發黑，鋁導體表面(mian)不(bu)(bu)(bu)應氧化發白。用手撕絕(jue)緣或護套要有一(yi)定(ding)(ding)的(de)(de)韌性和柔韌性，不(bu)(bu)(bu)容易(yi)斷

高壓電纜為什么要做接地處理？

高壓電(dian)(dian)(dian)纜用(yong)于輸送1kV到1000kV之間(jian)的電(dian)(dian)(dian)力，多用(yong)于輸配電(dian)(dian)(dian)，是電(dian)(dian)(dian)力電(dian)(dian)(dian)纜的一種。高壓電(dian)(dian)(dian)纜的組成部分從里到外(wai)包括：導(dao)體、內護(hu)套、絕緣、填充物和(he)外(wai)絕緣。當然，鎧(kai)裝高壓電(dian)(dian)(dian)纜可(ke)以抵抗地面的高強度壓迫，高壓電(dian)(dian)(dian)纜廠家將其(qi)用(yong)于地下埋(mai)設，防止其(qi)他(ta)外(wai)力破壞(huai)。

接(jie)地(di)(di)原因(yin)：1、高壓三(san)(san)芯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜接(jie)地(di)(di)：35kV及以(yi)下電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓等(deng)級的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜兩端接(jie)地(di)(di)，這是(shi)因(yin)為這些電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜大(da)多是(shi)三(san)(san)芯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜。正(zheng)常運(yun)行時(shi)(shi)，流過(guo)三(san)(san)芯的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流之和為零(ling)，鋁包(bao)層(ceng)(ceng)或(huo)金(jin)屬屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)兩端基本沒有感(gan)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，鋁包(bao)層(ceng)(ceng)或(huo)金(jin)屬屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)外基本沒有磁鏈，所以(yi)兩端接(jie)地(di)(di)后也(ye)不會有感(gan)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流流過(guo)鋁包(bao)層(ceng)(ceng)或(huo)金(jin)屬屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)。2、高壓單芯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜接(jie)地(di)(di)：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜帶負(fu)荷運(yun)行時(shi)(shi)，屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)內(nei)會形(xing)成感(gan)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓。如(ru)果兩端屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)同時(shi)(shi)接(jie)地(di)(di)，屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)與(yu)大(da)地(di)(di)之間會形(xing)成回路(lu)，產生(sheng)感(gan)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流，消耗(hao)大(da)量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)，使電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜屏(ping)(ping)蔽(bi)(bi)(bi)層(ceng)(ceng)發熱，影響(xiang)線(xian)路(lu)正(zheng)常運(yun)行。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜線(xian)路(lu)遭受短路(lu)故障、雷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)沖擊(ji)或(huo)操作(zuo)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓時(shi)(shi)，屏(ping)(ping)蔽(bi)(bi)(bi)會形(xing)成很(hen)高的感(gan)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，可能(neng)擊(ji)穿電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜外護(hu)套(tao)，會危及人身安全(quan)。為了避免(mian)這種現象，高壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜廠(chang)家通常采用一(yi)端接(jie)地(di)(di)。當線(xian)路(lu)很(hen)長時(shi)(shi)，也(ye)可以(yi)采用中性點接(jie)地(di)(di)和交叉互(hu)聯