電纜識別儀廠商是用于(yu)將某一(yi)特定電纜從(cong)一(yi)束電纜中識別出(chu)來的儀器。它是一(yi)小型化手提式，緊湊(cou)型儀器，裝(zhuang)在鋁合金箱(xiang)內(nei)，由一(yi)個信號發生器，一(yi)個帶(dai)傳感器的接(jie)收機及連線構成。

電纜識別儀廠商簡介：為了(le)可靠準確(que)地識(shi)別(bie)電(dian)(dian)纜(lan)，需(xu)要給被識(shi)別(bie)電(dian)(dian)纜(lan)加一特(te)殊的(de)信號(hao)，該(gai)信號(hao)要被接收機接收，利用(yong)這(zhe)一特(te)性便能識(shi)別(bie)出要找的(de)電(dian)(dian)纜(lan)。

工作原理：

發(fa)生器將周(zhou)期性的(de)(de)單極性電(dian)(dian)(dian)壓脈沖(chong)饋入要(yao)(yao)識(shi)(shi)別(bie)(bie)的(de)(de)電(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)，該(gai)電(dian)(dian)(dian)纜(lan)(lan)需要(yao)(yao)在遠端(duan)接(jie)地(di)，以保證有足夠大的(de)(de)電(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過(guo)電(dian)(dian)(dian)纜(lan)(lan)。該(gai)系統要(yao)(yao)設計(ji)成返(fan)(fan)(fan)回電(dian)(dian)(dian)流(liu)(liu)不要(yao)(yao)從同一電(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)返(fan)(fan)(fan)回，能(neng)做到這(zhe)(zhe)一點，饋入電(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)的(de)(de)脈沖(chong)電(dian)(dian)(dian)流(liu)(liu)的(de)(de)方向(xiang)(xiang)可做為一明顯的(de)(de)識(shi)(shi)別(bie)(bie)標準，流(liu)(liu)出(chu)去(qu)(qu)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)僅(jin)從這(zhe)(zhe)一根(gen)電(dian)(dian)(dian)纜(lan)(lan)通(tong)過(guo)，所有其它(ta)鄰近電(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)流(liu)(liu)過(guo)的(de)(de)都是返(fan)(fan)(fan)回電(dian)(dian)(dian)流(liu)(liu)，但它(ta)們的(de)(de)極性相(xiang)反。除了電(dian)(dian)(dian)流(liu)(liu)方向(xiang)(xiang)這(zhe)(zhe)一實際差(cha)異外，電(dian)(dian)(dian)流(liu)(liu)幅度也是一識(shi)(shi)別(bie)(bie)特征，流(liu)(liu)出(chu)去(qu)(qu)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)僅(jin)通(tong)過(guo)一根(gen)電(dian)(dian)(dian)纜(lan)(lan)、而返(fan)(fan)(fan)回電(dian)(dian)(dian)流(liu)(liu)可通(tong)過(guo)幾根(gen)電(dian)(dian)(dian)纜(lan)(lan)、這(zhe)(zhe)意味(wei)著流(liu)(liu)出(chu)去(qu)(qu)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)比流(liu)(liu)過(guo)其它(ta)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)返(fan)(fan)(fan)回電(dian)(dian)(dian)流(liu)(liu)大。

　　接(jie)收機(ji)的(de)(de)(de)(de)任務是探測(ce)流(liu)(liu)(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方(fang)向(xiang)以及它(ta)(ta)的(de)(de)(de)(de)大小。為達到這一目的(de)(de)(de)(de)，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)傳(chuan)(chuan)(chuan)感器(qi)被用作傳(chuan)(chuan)(chuan)感器(qi)，它(ta)(ta)帶有(you)一放大器(qi)并串聯在電(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)(zhong)，傳(chuan)(chuan)(chuan)感器(qi)鉗住被測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)產生的(de)(de)(de)(de)磁場在傳(chuan)(chuan)(chuan)感器(qi)的(de)(de)(de)(de)線(xian)圈(quan)中(zhong)(zhong)感應出電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，該電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)極(ji)性由電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方(fang)向(xiang)和傳(chuan)(chuan)(chuan)感器(qi)線(xian)圈(quan)的(de)(de)(de)(de)方(fang)向(xiang)決定(ding)。為了得到明顯(xian)有(you)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方(fang)向(xiang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)極(ji)性，對一束電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)中(zhong)(zhong)所有(you)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)進(jin)行測(ce)試(shi)都采取相(xiang)同正確(que)的(de)(de)(de)(de)方(fang)向(xiang)。傳(chuan)(chuan)(chuan)感器(qi)線(xian)圈(quan)中(zhong)(zhong)感應的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)在表頭中(zhong)(zhong)顯(xian)示(shi)出來，如果傳(chuan)(chuan)(chuan)感器(qi)按上述方(fang)式連(lian)接(jie)，指針擺動(dong)(dong)方(fang)向(xiang)可顯(xian)示(shi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方(fang)向(xiang)，即只(zhi)有(you)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)出的(de)(de)(de)(de)這根電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)指針向(xiang)一邊偏(pian)，這根就(jiu)是要找的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)。所有(you)其它(ta)(ta)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)只(zhi)流(liu)(liu)(liu)過(guo)(guo)返回電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，指針向(xiang)另一邊偏(pian)、或無脈動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，指針不偏(pian)轉。接(jie)收機(ji)上的(de)(de)(de)(de)放大調節器(qi)可調整信號強(qiang)度。

二、功能介紹

識(shi)別儀主機各部分功能如(ru)下：

1.　電源開(kai)關：控制整機電源通(tong)斷(duan)。

2.　電源(yuan)輸(shu)入(ru)插座：用(yong)儀(yi)器(qi)所(suo)配電源(yuan)線，輸(shu)入(ru)50HZ、220V交流電源(yuan)。儀(yi)器(qi)使(shi)(shi)用(yong)時，應獨立使(shi)(shi)用(yong)三(san)孔(kong)電源(yuan)插座，插座接地線就近直(zhi)接接地。

3.　保(bao)險(xian)座：儀器使用(yong)10A保(bao)險(xian)芯，損壞時應換同(tong)規格(ge)保(bao)險(xian)芯。

4.　黑接線柱：測試時，用配套黑色測試線（Ф4插(cha)(cha)頭）插(cha)(cha)入此插(cha)(cha)孔，另一端測試夾接系統地。

5.　紅接(jie)線(xian)柱：測(ce)試時，用配套(tao)紅色測(ce)試線(xian)（Ф4插頭）插入此(ci)插孔(kong)，另一端測(ce)試夾接(jie)被測(ce)電纜芯線(xian)。

6.　表(biao)頭：指示(shi)輸(shu)出(chu)電(dian)流大小。7.輸(shu)出(chu)調(diao)節(jie)；調(diao)節(jie)輸(shu)出(chu)電(dian)流大小。

7、輸出調節(jie)旋鈕：用于輸出幅度大(da)小(xiao)的調節(jie)。以不滿刻度打表為(wei)原則(ze)。

接收機(ji)各部分功能(neng)如下(xia)：

1. 靈敏度調節：順(shun)時針旋(xuan)轉，接(jie)收機電表(biao)指(zhi)示值(zhi)增大，逆時針旋(xuan)轉，指(zhi)示值(zhi)變小。

2. 表頭(tou)：指示輸入信號幅度大(da)小與極性。

三、工作方法

帶電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜(lan)設備(bei)儀信號發生器由交流電(dian)(dian)(dian)(dian)(dian)源供電(dian)(dian)(dian)(dian)(dian)，它對已(yi)斷電(dian)(dian)(dian)(dian)(dian)的、要識(shi)別的電(dian)(dian)(dian)(dian)(dian)纜(lan)加上(shang)固定周期單極性的直流脈沖。工(gong)作時(shi)，將(jiang)發生器輸出線(xian)連在電(dian)(dian)(dian)(dian)(dian)纜(lan)芯線(xian)和接(jie)地點或地釘上(shang)，該電(dian)(dian)(dian)(dian)(dian)纜(lan)線(xian)鎧裝與大地斷開，芯線(xian)在遠(yuan)端與接(jie)地點或地釘相連，該回路可(ke)(ke)傳導脈沖電(dian)(dian)(dian)(dian)(dian)流，它可(ke)(ke)由識(shi)別儀上(shang)的表頭讀出，電(dian)(dian)(dian)(dian)(dian)流大小由環(huan)路電(dian)(dian)(dian)(dian)(dian)阻(zu)決定，環(huan)路電(dian)(dian)(dian)(dian)(dian)阻(zu)應盡可(ke)(ke)能小。

為(wei)保證(zheng)環(huan)路電阻(zu)的阻(zu)抗(kang)盡可能(neng)低，地釘(ding)與地之間要(yao)保證(zheng)接觸良好（將地釘(ding)附近的地方弄濕(shi)）。發射(she)機與電纜連接正確(que)但無輸(shu)出(chu)，說明環(huan)路電阻(zu)太大或未構成測試回路，應檢查終端(duan)接地。【將發射(she)機兩輸(shu)出(chu)夾(jia)短接，表頭有輸(shu)出(chu)，證(zheng)明儀器(qi)(qi)完好】警告：為(wei)確(que)保人身(shen)安全，對已確(que)定(ding)的電纜，在(zai)維修開鋸前，一定(ding)要(yao)進行扎(zha)釘(ding)試驗，可選DS1102型(xing)電纜安全刺(ci)扎(zha)器(qi)(qi)。

四、配套

帶(dai)電(dian)電(dian)纜(lan)設備儀主機　　　1臺　　　　

電源線　　　1條

帶電(dian)電(dian)纜設備儀接收機　　1臺　　　

說明書　　　1本

合(he)格證　　　　　　　　　　1份　　　　

測試線　　　2條

保修卡　　　　　　　　　　1份

注：1.測(ce)試(shi)時(shi)電流鉗上的紅色(se)箭頭標記指向電纜遠端！

2.發(fa)射機輸出電流調(diao)節(jie)大也超不過5A時，應檢查接(jie)地電阻，也可(ke)另打地釬。【對端芯線(xian)接(jie)地后，在首端測量(liang)芯地間電阻越(yue)小，輸出電流越(yue)大】

3.發射機正(zheng)常工(gong)作電(dian)流應(ying)調到大(da)(da)于10A小(xiao)于30A[5A可工(gong)作]，電(dian)流大(da)(da)時(shi)接收(shou)機指示明顯。發射機輸出正(zheng)常但接收(shou)機無(wu)指示，大(da)(da)多(duo)是卡鉗口未閉(bi)合(he)，請張開鉗口，快速讓(rang)其卡、卡閉(bi)合(he)幾次就可解決問題。