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高(gao)壓架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian)材(cai)(cai)(cai)料和(he)結(jie)(jie)構 1.導(dao)(dao)體(ti) 農村、山(shan)區和(he)林區的(de)(de)電(dian)(dian)(dian)網(wang)改造,高(gao)壓架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian),有部分需(xu)要(yao)采用架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan),尤其是林區更為(wei)(wei)重(zhong)要(yao),裸(luo)線(xian)(xian)(xian)輸電(dian)(dian)(dian)是引起森林火災的(de)(de)原因之(zhi)一,美國有確切的(de)(de)報道。農、山(shan)、林區的(de)(de)電(dian)(dian)(dian)桿(gan)跨度(du)(du)較(jiao)大,電(dian)(dian)(dian)線(xian)(xian)(xian)拉力要(yao)求高(gao),一般(ban)硬鋁還(huan)不能符(fu)合(he)要(yao)求,為(wei)(wei)避免增設(she)大量電(dian)(dian)(dian)桿(gan),可(ke)發展鋼(gang)芯鋁絞(jiao)線(xian)(xian)(xian)芯架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan),中(zhong)(zhong)雖未(wei)列入此產品(pin),但可(ke)制(zhi)定(ding)企業標準(zhun),導(dao)(dao)體(ti)一般(ban)可(ke)用現有鋼(gang)芯鋁絞(jiao)線(xian)(xian)(xian)結(jie)(jie)構,特殊要(yao)求可(ke)適當加強。2.絕(jue)緣(yuan) 低(di)壓1kV架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)標準(zhun)規定(ding)有三種絕(jue)緣(yuan)材(cai)(cai)(cai)料,中(zhong)(zhong)壓10-35kV架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)標準(zhun)規定(ding)二(er)種絕(jue)緣(yuan)材(cai)(cai)(cai)料。A、絕(jue)緣(yuan)有較(jiao)多的(de)(de)缺點(dian):①工作溫度(du)(du)70℃,短路(lu)溫度(du)(du)130℃;②耐氣(qi)候性(xing)能差,壽(shou)命較(jiao)短,一般(ban)為(wei)(wei)10年(nian)(nian)(nian),壽(shou)命也只有15年(nian)(nian)(nian)左右,這與電(dian)(dian)(dian)網(wang)要(yao)求運行40年(nian)(nian)(nian)以上,差距(ju)很(hen)大;B、黑(hei)色(se)交聯(lian)聚乙烯(xi)克服了上述(shu)缺點(dian):①工作90℃,短路(lu)溫度(du)(du)銅芯為(wei)(wei)250℃,鋁芯為(wei)(wei)200℃;②在正常情(qing)況(kuang)下,耐氣(qi)候老化壽(shou)命可(ke)超(chao)過40年(nian)(nian)(nian)。但是必(bi)須注意,如果電(dian)(dian)(dian)纜(lan)料配方中(zhong)(zhong)碳(tan)(tan)黑(hei)粒(li)徑、含碳(tan)(tan)黑(hei)量、碳(tan)(tan)黑(hei)分散度(du)(du)不符(fu)合(he)規定(ding)時,會影響耐氣(qi)候老化壽(shou)命;③交聯(lian)聚乙烯(xi)為(wei)(wei)熱(re)固(gu)性(xing)材(cai)(cai)(cai)料,與導(dao)(dao)體(ti)結(jie)(jie)合(he)穩定(ding),電(dian)(dian)(dian)纜(lan)長期運行中(zhong)(zhong)基本收縮不均(jun)勻的(de)(de)情(qing)況(kuang)很(hen)少發生。重(zhong)慶架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian)纜(lan),壁山(shan)架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian)路(lu),武隆架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian),江北架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian),綿陽架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian),德陽架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian),永川架(jia)(jia)(jia)(jia)(jia)(jia)(jia)空(kong)(kong)(kong)線(xian)(xian)(xian)路(lu),
高(gao)壓架空線架空線路與電纜線路有(you)3點區(qu)別:
一、架空線兩(liang)者的含義不同:
1、架(jia)(jia)空(kong)線(xian)路(lu)(lu)的含義:架(jia)(jia)空(kong)線(xian)路(lu)(lu)主要(yao)指(zhi)架(jia)(jia)空(kong)明線(xian),架(jia)(jia)設在(zai)地(di)面(mian)之上(shang),是用絕緣子(zi)將輸電(dian)導線(xian)固定在(zai)直立(li)于地(di)面(mian)的桿塔上(shang)以傳輸電(dian)能的輸電(dian)線(xian)路(lu)(lu)。
2、電(dian)(dian)(dian)纜(lan)線(xian)路(lu)的(de)含義:由通信電(dian)(dian)(dian)纜(lan)及其附屬設備構(gou)成的(de)電(dian)(dian)(dian)信號傳(chuan)輸系統。通信電(dian)(dian)(dian)纜(lan)是由多根相互(hu)絕(jue)緣的(de)芯(xin)線(xian)或導體按一定(ding)方式絞合而(er)成的(de)線(xian)束,其外包有密(mi)封的(de)護(hu)套,有的(de)還包覆(fu)外護(hu)層(ceng)。電(dian)(dian)(dian)纜(lan)線(xian)路(lu)可用于傳(chuan)送電(dian)(dian)(dian)報、電(dian)(dian)(dian)話(hua)、圖(tu)像(xiang)、數據等。
二(er)、兩者的特點不同(tong):
1、架(jia)空線路的(de)特點:架(jia)設及維(wei)修比較(jiao)方便,成本較(jiao)低,但容易(yi)受(shou)到(dao)氣象和環境(jing)(如大風、雷擊、污(wu)穢、冰雪等)的(de)影響(xiang)而引起故(gu)障,同(tong)時整個輸電(dian)走廊(lang)占用土地面積較(jiao)多,易(yi)對(dui)周邊環境(jing)造成電(dian)磁干擾。
2、電(dian)纜線(xian)路的特點(dian)(dian):電(dian)纜線(xian)路具有(you)使(shi)用壽(shou)命長,通信容量大,傳輸質量穩定,受外界干擾小,保密(mi)性能好等優點(dian)(dian),因而(er)在有(you)線(xian)電(dian)通信線(xian)路中占(zhan)主要地(di)位(wei)。
三、兩者(zhe)的基本要求不同:
1、架空線(xian)路(lu)的基(ji)本要求(qiu):
(1)電(dian)纜規格應符(fu)合規定(ding),排列應整齊(qi),無(wu)損傷,標牌齊(qi)全、正(zheng)確(que)、清晰。
(2)電(dian)纜的固定(ding)彎曲半徑、有關距離及(ji)單芯電(dian)力(li)電(dian)纜的金屬護(hu)層的接(jie)線應符合(he)要求。
(3)電纜終端、中間頭不滲漏油(you),安裝牢固,充(chong)油(you)電纜油(you)壓及表(biao)計(ji)整定(ding)值應符合(he)要求。
(4)接地良好
(5)電纜終端相色(se)正確,支架等的金屬部件(jian)油漆完(wan)整。
(6)電纜(lan)溝及隧道內、橋架(jia)上應無(wu)雜物,蓋板齊全。
武隆架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),綿陽(yang)架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),江北(bei)架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),渝中(zhong)架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),黔南架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),重慶架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian)纜,樂山架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian)路(lu),壁(bi)山架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian)路(lu),德陽(yang)架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian)路(lu),甘(gan)孜架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),石柱架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian),達州架(jia)(jia)空(kong)(kong)(kong)(kong)線(xian)(xian)纜。
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