為(wei)(wei)了(le)滿足(zu)配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)發展的(de)需求(qiu)，采(cai)用電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)供電(dian)(dian)(dian)(dian)(dian)已成(cheng)為(wei)(wei)必然趨勢。通過建立以高壓開(kai)關柜(ju)(ju)配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)模式(shi)為(wei)(wei)主的(de)配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)絡(luo)，實(shi)現在(zai)復雜網(wang)架下故(gu)障(zhang)(zhang)的(de)快(kuai)速處(chu)理和恢復，大大縮短了(le)停電(dian)(dian)(dian)(dian)(dian)時間。目(mu)前，配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)高壓開(kai)關柜(ju)(ju)以其(qi)可(ke)(ke)靠性(xing)和經(jing)濟性(xing)成(cheng)為(wei)(wei)配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)絡(luo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)化的(de)首選形式(shi)，與此同時，對配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)高壓開(kai)關柜(ju)(ju)可(ke)(ke)靠供電(dian)(dian)(dian)(dian)(dian)的(de)要求(qiu)也愈來(lai)愈高。隨(sui)著城(cheng)市化的(de)發展，在(zai)城(cheng)區(qu)的(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)大都(dou)從架空線(xian)路(lu)轉入到地下線(xian)路(lu)，電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)在(zai)配(pei)(pei)網(wang)系統中廣泛應用，其(qi)安全(quan)運行對于用戶供電(dian)(dian)(dian)(dian)(dian)可(ke)(ke)靠性(xing)非(fei)常重要。根據(ju)多年來(lai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)故(gu)障(zhang)(zhang)的(de)數據(ju)統計可(ke)(ke)以看出(chu)，致使電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)產生故(gu)障(zhang)(zhang)最根本的(de)緣由是電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中間接頭的(de)故(gu)障(zhang)(zhang)。

隧道電纜故障的原因：

1、在鋪設的過程中電纜接頭常常會(hui)因施工(gong)工(gong)藝不良從而(er)致使裝(zhuang)設的中間接頭存(cun)在某(mou)些缺陷。

2、中間(jian)接頭多數處于地下(xia)電(dian)(dian)纜(lan)溝中，環境較為惡劣，淤(yu)泥雨水對中間(jian)接頭的長期腐蝕(shi)，造成絕緣(yuan)(yuan)老化損壞(huai)，出現(xian)(xian)內部絕緣(yuan)(yuan)缺陷。這兩種情況(kuang)均(jun)會導致(zhi)局部放電(dian)(dian)現(xian)(xian)象的產生，進而(er)不斷腐蝕(shi)電(dian)(dian)纜(lan)的絕緣(yuan)(yuan)層，使其(qi)絕緣(yuan)(yuan)性能(neng)出現(xian)(xian)大幅下(xia)降，從而(er)引(yin)起(qi)電(dian)(dian)纜(lan)運行(xing)故障(zhang)，造成停電(dian)(dian)事故。因此針(zhen)對電(dian)(dian)纜(lan)井電(dian)(dian)纜(lan)接頭的溫(wen)度監測顯得(de)尤為重要。

日常(chang)(chang)工(gong)作(zuo)中(zhong)，電力系統運維人員通過(guo)(guo)定期到場(chang)巡檢電纜接(jie)頭(tou)溫(wen)(wen)(wen)度(du)值、接(jie)頭(tou)老化情況、工(gong)作(zuo)量(liang)較大、且工(gong)作(zuo)效率較低，無(wu)法(fa)(fa)(fa)實(shi)(shi)現實(shi)(shi)時溫(wen)(wen)(wen)度(du)監(jian)(jian)測(ce)(ce)需(xu)求，也不能及時發(fa)現問(wen)題(ti)，解決(jue)問(wen)題(ti)。電纜接(jie)頭(tou)運行溫(wen)(wen)(wen)度(du)監(jian)(jian)測(ce)(ce)方法(fa)(fa)(fa)較多(duo)，常(chang)(chang)用(yong)方法(fa)(fa)(fa)有紅外(wai)測(ce)(ce)溫(wen)(wen)(wen)法(fa)(fa)(fa)，紅外(wai)測(ce)(ce)溫(wen)(wen)(wen)法(fa)(fa)(fa)的原理是(shi)當故障點形成溫(wen)(wen)(wen)度(du)源(yuan)后，通過(guo)(guo)測(ce)(ce)量(liang)溫(wen)(wen)(wen)度(du)源(yuan)紅外(wai)輻射波(bo)獲得溫(wen)(wen)(wen)度(du)變化，缺點是(shi)不能實(shi)(shi)現在線測(ce)(ce)溫(wen)(wen)(wen)，需(xu)要人工(gong)巡檢，耗(hao)工(gong)費時。

華(hua)光(guang)天銳(rui)自主研發的電(dian)纜接頭(tou)熒光(guang)光(guang)纖(xian)測(ce)溫裝置和(he)變送器模塊具(ju)有更(geng)低的功率(lv)消耗，更(geng)加省電(dian)，使用壽命長(chang)，耐(nai)高壓(ya)、抗干擾、絕(jue)緣(yuan)、測(ce)溫探頭(tou)無金屬，光(guang)纖(xian)本質(zhi)安全，便于(yu)系(xi)統的維護，降低運行成本。