電纜測試儀怎么使用
標簽: 電纜故障測試儀
電纜測試儀怎么使用:電纜故障測試系統:電(dian)力的輸送和有線通信的暢(chang)通有賴于電纜線路的正常運行。如果線路發生障礙,那就會造成電力和通(tong)信的中斷,如果不能馬上查出故障并且迅速予以排除故障,那就會很可能造成非常大的的經濟損失和不良的社會影響。因此,電纜故障測試儀是維護各種電纜的非常重要的測試工具。電力電纜故障智能測試儀采用了多種故障探測方法,應用當前 先進的電子技術成果,采用了計算機和特殊性電子技術,通過結合公司常久研制電纜測試儀的成(cheng)功經驗(yan)而推出的智能(neng)化,功能(neng)全的新一(yi)代高科技產品。
為了能(neng)(neng)更好和(he)更多(duo)查找故障點(dian),在探測(ce)(ce)到故障點(dian)時(shi)(shi),探測(ce)(ce)人(ren)員的(de)雙腳要(yao)盡(jin)量拉開(kai)距離。以減小接(jie)地(di)(di)(di)點(dian)的(de)面積再探測(ce)(ce)一(yi)段時(shi)(shi)間后,如果(guo)(guo)發現指示燈(deng)亮度不夠時(shi)(shi),必須要(yao)充電(dian)后再進(jin)行探測(ce)(ce)。如果(guo)(guo)地(di)(di)(di)埋(mai)線(xian)(xian)漏電(dian)故障點(dian)太多(duo)或對地(di)(di)(di)埋(mai)線(xian)(xian)不能(neng)(neng)供電(dian)時(shi)(shi),可(ke)以用(yong)B型機(ji)進(jin)行探測(ce)(ce)。用(yong)B型機(ji)進(jin)行探測(ce)(ce)時(shi)(shi),應首先(xian)要(yao)把(ba)要(yao)測(ce)(ce)的(de)線(xian)(xian)路和(he)高壓連(lian)線(xian)(xian)全(quan)部斷(duan)開(kai)。然后把(ba)大功率信號(hao)發射器的(de)紅色(se)接(jie)線(xian)(xian)柱,接(jie)在地(di)(di)(di)埋(mai)線(xian)(xian)其中一(yi)根和(he)多(duo)根線(xian)(xian)上(shang),黑色(se)接(jie)線(xian)(xian)柱接(jie)上(shang)連(lian)線(xian)(xian),用(yong)長(chang)大約5-15公(gong)分(fen)的(de)鐵釘釘在地(di)(di)(di)上(shang)( 好把(ba)接(jie)地(di)(di)(di)的(de)地(di)(di)(di)方(fang)用(yong)水灑濕),然后按以上(shang)步驟,就(jiu)可(ke)進(jin)行探測(ce)(ce)。
除此之(zhi)外,使用電(dian)(dian)纜故(gu)(gu)障(zhang)測試儀時(shi),首先(xian)在探測之(zhi)前(qian),要弄清漏電(dian)(dian)故(gu)(gu)障(zhang)線(xian)(xian)的性(xing)質,向線(xian)(xian)路(lu)(lu)送(song)電(dian)(dian)。如果只是絕緣損壞向大(da)地漏電(dian)(dian),線(xian)(xian)路(lu)(lu)不短(duan)路(lu)(lu),不斷線(xian)(xian)時(shi),可用常規向線(xian)(xian)路(lu)(lu)送(song)電(dian)(dian);如果線(xian)(xian)間短(duan)路(lu)(lu)且(qie)漏電(dian)(dian)或線(xian)(xian)間絕緣正(zheng)常,有部分斷線(xian)(xian)且(qie)漏電(dian)(dian)時(shi),可將(jiang)本路(lu)(lu)所(suo)有的線(xian)(xian)(三線(xian)(xian)或四線(xian)(xian))并接在一(yi)起,向線(xian)(xian)路(lu)(lu)單相送(song)電(dian)(dian);如果對地絕緣良好,內芯斷線(xian)(xian)故(gu)(gu)障(zhang)時(shi),可將(jiang)所(suo)有好線(xian)(xian)及(ji)斷芯故(gu)(gu)障(zhang)線(xian)(xian)的一(yi)端(duan)一(yi)并接地,由故(gu)(gu)障(zhang)線(xian)(xian)的另(ling)一(yi)端(duan)向故(gu)(gu)障(zhang)線(xian)(xian)送(song)單相電(dian)(dian)源。
電纜測試儀需一人操作。將(jiang)電(dian)纜故障測(ce)試儀的耳(er)機(ji)插頭插入儀器(qi)(qi)耳(er)機(ji)孔,按下開關,指示燈亮。將(jiang)探(tan)測(ce)板上的連(lian)線(xian)分別接在紅黑接線(xian)柱(zhu)上,然(ran)后(hou)把(ba)探(tan)測(ce)板相碰幾下,同時(shi)(shi)耳(er)機(ji)內應聽到(dao)(dao)咯(ge)叭(ba)聲(sheng)(sheng),機(ji)器(qi)(qi)屬正常。把(ba)帶釘的探(tan)測(ce)板分別扣在探(tan)測(ce)員的左右(you)腳上,做為探(tan)測(ce)器(qi)(qi)的兩個(ge)接地點(dian),然(ran)后(hou)就可(ke)以對(dui)地埋(mai)線(xian)進(jin)行探(tan)測(ce)。在地埋(mai)線(xian)上方從(cong)線(xian)路的一端向另一端探(tan)測(ce),緩慢向前行走,在對(dui)地絕緣良(liang)好(hao)的線(xian)段,耳(er)機(ji)基(ji)本無聲(sheng)(sheng),在臨近故障點(dian)(C)時(shi)(shi),聲(sheng)(sheng)音(yin)逐漸由小到(dao)(dao)大(da),到(dao)(dao)故障點(dian)(A)時(shi)(shi),聲(sheng)(sheng)音(yin) 大(da),當越(yue)過故障點(dian)到(dao)(dao)(B)時(shi)(shi),聲(sheng)(sheng)音(yin)則由大(da)變(bian)小至無聲(sheng)(sheng),然(ran)后(hou)可(ke)退回到(dao)(dao)聲(sheng)(sheng)音(yin) 大(da)時(shi)(shi)的地方(A),此點(dian)即(ji)為漏(lou)電(dian)故障點(dian)。