直埋電纜敷設有哪些要求

直埋拖鏈電纜敷設有的耍求？（1）挖方的溝底是松散的持力層，要是是鵝卵石或硬塑雜質要鋪100mm厚的軟土或砂層。高壓電線高壓電攬周圈的和泥土如含有鋁合金腐蝕高壓電線高壓電攬鋁合金包皮，應清理和換土，埋深應不乘以0.7m，穿梭田地應立即不乘以1m。在對接建筑材料結構施工物、與底下停車場建筑材料結構施工物交疊及跳過底下停車場建筑材料結構施工物處，可淺埋，但應選用保護處理，高壓電線高壓電攬應埋于凍持力層下面，當受標準被限時，應選用可以防止高壓電線高壓電攬感受到受傷的處理。（2）電力電纜線敷設后，里面要鋪100mm厚的軟土或沙子，再蓋緊瀝青水泥瀝青水泥砼土土保養好板，覆蓋面間距應大于電力電纜線下方之內各50mm，或用磚替換瀝青水泥瀝青水泥砼土土保養好板。

（3）中(zhong)間(jian)商連(lian)接(jie)頭(tou)盒(he)室(shi)外要有鑄鐵質或水泥水泥土(tu)呵護盒(he)。（4）線(xian)(xian)(xian)(xian)(xian)金(jin)屬接(jie)頭(tou)接(jie)下應(ying)墊以瀝青c30混凝土(tu)土(tu)地基(ji)板(ban)，段(duan)長(chang)度要伸出手線(xian)(xian)(xian)(xian)(xian)金(jin)屬接(jie)頭(tou)保障盒(he)兩(liang)(liang)端600?700mm，通(tong)信(xin)電(dian)(dian)纜(lan)自(zi)土(tu)溝招引橋隧、人(ren)孔和(he)房子物時，要穿(chuan)(chuan)在分液漏(lou)斗，并將出水管(guan)(guan)閉(bi)塞，處(chu)理冒(mao)水。（5）拖(tuo)鏈低(di)壓(ya)電(dian)(dian)纜(lan)相(xiang)互(hu)完善交(jiao)叉性(xing)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)，與其電(dian)(dian)力(li)管(guan)(guan)和(he)通(tong)道交(jiao)叉性(xing)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)，殺手穿(chuan)(chuan)越(yue)機耕路(lu)(lu)和(he)墻頂時，都需要穿(chuan)(chuan)在保障管(guan)(guan)上(shang)(shang)，保障管(guan)(guan)長(chang)超出范圍交(jiao)叉性(xing)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)點1m，交(jiao)叉性(xing)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)的(de)(de)(de)(de)(de)情(qing)(qing)(qing)(qing)況(kuang)(kuang)凈(jing)距應(ying)當該(gai)不(bu)低(di)于(yu)(yu)250mm，保障管(guan)(guan)直徑應(ying)當該(gai)不(bu)低(di)于(yu)(yu)拖(tuo)鏈低(di)壓(ya)電(dian)(dian)纜(lan)外徑的(de)(de)(de)(de)(de)1.5倍。（6）直埋電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)常見在使用(yong)鎧裝(zhuang)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)。在鎧裝(zhuang)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)材料(liao)外皮(pi)兩(liang)(liang)端要可靠的(de)(de)(de)(de)(de)地線(xian)(xian)(xian)(xian)(xian)，地線(xian)(xian)(xian)(xian)(xian)熱敏電(dian)(dian)阻嚴(yan)禁不(bu)小于(yu)(yu)10Ω。（7）直埋拖(tuo)鏈電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)在直線(xian)(xian)(xian)(xian)(xian)方程段(duan)不(bu)間(jian)斷50?100m處(chu)，拖(tuo)鏈電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)線(xian)(xian)(xian)(xian)(xian)接(jie)頭(tou)處(chu)、轉彎處(chu)、開始房屋(wu)建筑(zhu)立面(mian)等處(chu)，應(ying)設置成比較明顯的(de)(de)(de)(de)(de)坐向(xiang)圖標或標樁(zhuang)。（8）通(tong)信(xin)電(dian)(dian)纜(lan)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)與其余管(guan)(guan)線(xian)(xian)(xian)(xian)(xian)、市政道路(lu)(lu)、建筑(zhu)結構物等間(jian)平(ping)形(xing)和(he)交(jiao)叉式時的(de)(de)(de)(de)(de)小凈(jing)距，應(ying)非常符內控范約(yue)定。不(bu)許將通(tong)信(xin)電(dian)(dian)纜(lan)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)平(ping)形(xing)敷設于(yu)(yu)管(guan)(guan)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)右(you)上(shang)(shang)方或右(you)上(shang)(shang)方。

標簽：直埋電纜