線(xian)纜敷(fu)(fu)設(she)(she)(she)的方式有：直(zhi)埋(mai)，管道(dao)敷(fu)(fu)設(she)(she)(she)，淺(qian)溝(gou)(gou)敷(fu)(fu)設(she)(she)(she)，電(dian)纜溝(gou)(gou)敷(fu)(fu)設(she)(she)(she)，電(dian)纜隧道(dao)敷(fu)(fu)設(she)(she)(she)，架空敷(fu)(fu)設(she)(she)(she)。

這(zhe)(zhe)些方(fang)法(fa)都(dou)有各(ge)自的(de)(de)(de)優缺點(dian)。總體上要考(kao)(kao)慮到(dao)(dao)城市(shi)發(fa)(fa)展規劃(hua)、現(xian)(xian)有建(jian)筑物密度(du)、線纜(lan)(lan)長度(du)及周邊環(huan)境的(de)(de)(de)影響。從技術上講，電(dian)(dian)(dian)纜(lan)(lan)隧(sui)(sui)道和(he)(he)電(dian)(dian)(dian)纜(lan)(lan)溝便(bian)于(yu)施(shi)工(gong)，維護(hu)(hu)和(he)(he)維修(xiu)。公共(gong)隧(sui)(sui)道已(yi)經(jing)(jing)被納入(ru)一(yi)些發(fa)(fa)達國家城市(shi)的(de)(de)(de)城市(shi)規劃(hua)和(he)(he)建(jian)設(she)中(zhong)(zhong)去考(kao)(kao)慮。實際(ji)應用表明(ming)，該(gai)方(fang)案運(yun)行(xing)效果良好，很大(da)地減(jian)少了重復投(tou)資(zi)和(he)(he)路面重復開挖現(xian)(xian)象(xiang)。但初(chu)期投(tou)資(zi)大(da)，建(jian)筑材料耗資(zi)多。由(you)于(yu)各(ge)種因(yin)素(su)的(de)(de)(de)影響，這(zhe)(zhe)種鋪設(she)方(fang)式在(zai)中(zhong)(zhong)國并不(bu)多見。而直埋電(dian)(dian)(dian)纜(lan)(lan)和(he)(he)淺(qian)槽敷(fu)設(she)方(fang)式則(ze)更為經(jing)(jing)濟。直接埋入(ru)式電(dian)(dian)(dian)纜(lan)(lan)是(shi)(shi)經(jing)(jing)濟、應用廣泛(fan)(fan)的(de)(de)(de)電(dian)(dian)(dian)氣(qi)敷(fu)設(she)方(fang)式，在(zai)郊區和(he)(he)車輛不(bu)經(jing)(jing)常經(jing)(jing)過的(de)(de)(de)地區得(de)到(dao)(dao)廣泛(fan)(fan)應用。但是(shi)(shi)，對電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)維修(xiu)和(he)(he)保養不(bu)利。當電(dian)(dian)(dian)纜(lan)(lan)出現(xian)(xian)故障時，即使測試員(yuan)發(fa)(fa)現(xian)(xian)故障點(dian)，也(ye)要重新(xin)挖掘電(dian)(dian)(dian)纜(lan)(lan)溝，十分不(bu)便(bian)。所以，電(dian)(dian)(dian)纜(lan)(lan)敷(fu)設(she)方(fang)式的(de)(de)(de)選擇應根據實際(ji)情(qing)況(kuang)，根據工(gong)程條件、環(huan)境特點(dian)、電(dian)(dian)(dian)纜(lan)(lan)型號及數量等因(yin)素(su)，結合(he)開發(fa)(fa)的(de)(de)(de)需要，根據運(yun)行(xing)滿足可靠性(xing)的(de)(de)(de)要求(qiu)，便(bian)于(yu)維護(hu)(hu)，符合(he)技術原則(ze)，經(jing)(jing)濟合(he)理。

電纜選用。

普通電(dian)力電(dian)纜主要(yao)有油浸(jin)式電(dian)纜、PVC絕緣(yuan)電(dian)纜、交聯PE電(dian)纜等(deng)。

可根(gen)據不同(tong)的(de)使用(yong)(yong)場合擴展到不同(tong)類(lei)型的(de)專用(yong)(yong)電(dian)(dian)纜(lan)。近年來，隨著生產工(gong)藝的(de)不斷(duan)改(gai)進，交聯聚乙烯電(dian)(dian)纜(lan)已成為應用(yong)(yong)廣(guang)泛的(de)電(dian)(dian)纜(lan)產品。應根(gen)據不同(tong)使用(yong)(yong)環境和條件，并結合具體情況選擇(ze)電(dian)(dian)纜(lan)，以(yi)更大限度地減少(shao)各類(lei)鐵路、公路和通信電(dian)(dian)纜(lan)的(de)穿越。鋼鎧裝電(dian)(dian)纜(lan)應用(yong)(yong)于直槽和淺槽敷設。

電纜橫截面積的(de)選取。

線(xian)纜(lan)(lan)橫截(jie)面積的選擇與線(xian)纜(lan)(lan)投資、線(xian)損、電壓質(zhi)量和線(xian)纜(lan)(lan)壽命有關(guan)。

若截斷面(mian)積(ji)過小，電(dian)壓(ya)質量降(jiang)低(di)，線損(sun)過大(da)，初(chu)始投(tou)資過大(da);根(gen)據(ju)負(fu)荷預測結(jie)果和開發計(ji)劃(hua)，合(he)理選擇電(dian)纜截面(mian)積(ji)，使(shi)其在(zai)更大(da)工作電(dian)流(liu)下(xia)能滿足鐵心溫度(du)和壓(ya)降(jiang)要求(qiu)，在(zai)更大(da)短路電(dian)流(liu)作用下(xia)能滿足熱(re)穩定要求(qiu)。因負(fu)荷預測難度(du)大(da)，精度(du)不(bu)高，電(dian)纜截面(mian)積(ji)的選取應符合(he)《城市(shi)中低(di)壓(ya)配電(dian)網(wang)絡改造技術導(dao)(dao)則(ze)》及(ji)《城市(shi)電(dian)網(wang)規劃(hua)導(dao)(dao)則(ze)》的要求(qiu)。

在選擇低(di)壓(ya)(ya)三相(xiang)四線(xian)(xian)(xian)電(dian)網電(dian)源時，還(huan)應(ying)考(kao)慮零(ling)(ling)線(xian)(xian)(xian)截(jie)(jie)面(mian)積(ji)的(de)選擇。公共低(di)壓(ya)(ya)電(dian)網由于受用戶因素的(de)影響，三相(xiang)負荷平衡很難控制。為改善電(dian)壓(ya)(ya)品質，降低(di)線(xian)(xian)(xian)損，零(ling)(ling)線(xian)(xian)(xian)截(jie)(jie)面(mian)積(ji)應(ying)等于相(xiang)線(xian)(xian)(xian)截(jie)(jie)面(mian)積(ji)。

有(you)線(xian)網(wang)(wang)絡和(he)有(you)線(xian)網(wang)(wang)絡的(de)自動化。

由(you)于(yu)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜在(zai)(zai)配(pei)(pei)電(dian)(dian)(dian)(dian)網(wang)(wang)絡中的不斷推廣和使用(yong)，配(pei)(pei)電(dian)(dian)(dian)(dian)網(wang)(wang)絡可(ke)以分為(wei)電(dian)(dian)(dian)(dian)纜網(wang)(wang)和架空(kong)網(wang)(wang)(包括架空(kong)網(wang)(wang)和電(dian)(dian)(dian)(dian)纜混合網(wang)(wang))。城鎮中低(di)電(dian)(dian)(dian)(dian)壓配(pei)(pei)電(dian)(dian)(dian)(dian)網(wang)(wang)改(gai)造(zao)技(ji)術(shu)導則(ze)(實(shi)施(shi)補(bu)充意見(jian))>實(shi)施(shi)補(bu)充意見(jian)也對(dui)配(pei)(pei)電(dian)(dian)(dian)(dian)網(wang)(wang)電(dian)(dian)(dian)(dian)纜自動(dong)(dong)(dong)化(hua)提出具(ju)體要求。所以在(zai)(zai)配(pei)(pei)網(wang)(wang)區域網(wang)(wang)CATV網(wang)(wang)絡中，應(ying)根據配(pei)(pei)網(wang)(wang)自動(dong)(dong)(dong)化(hua)的要求，采用(yong)新(xin)技(ji)術(shu)、新(xin)設備(bei)，對(dui)自動(dong)(dong)(dong)化(hua)進行試(shi)驗，對(dui)條件不成熟的配(pei)(pei)套設備(bei)進行選型(xing)，為(wei)實(shi)施(shi)自動(dong)(dong)(dong)化(hua)打下基礎(chu)。