萬用表檢測led燈珠漏電 如何用萬用表測led燈是否損壞 |
| 發布時間:2022-09-21 12:34:42 |
大家(jia)好我是(shi)小(xiao)編一(yi)夢(meng)今天(tian)我們來介紹萬(wan)用(yong)(yong)表檢測led燈珠(zhu)漏電 如(ru)何(he)用(yong)(yong)萬(wan)用(yong)(yong)表測led燈是(shi)否損壞(huai)的問題(ti)，以下就(jiu)是(shi)一(yi)夢(meng)對此問題(ti)和相關問題(ti)的歸納整理,一(yi)起來看看吧。 文章目錄導航: 燈已裝好怎么用萬能表查漏電 1、用(yong)萬用(yong)表(biao)測量(liang)漏電電壓。把(ba)萬用(yong)表(biao)轉(zhuan)換開(kai)關(guan)放(fang)在(zai)(zai)(zai)交流電壓測量(liang)檔(dang)上，一般為(wei)(wei)250V檔(dang)位(wei)，然(ran)后把(ba)黑表(biao)筆(bi)插入所測設(she)備(bei)(bei)附近的土壤(rang)里，紅表(biao)筆(bi)接在(zai)(zai)(zai)設(she)備(bei)(bei)的金屬外殼上。這時(shi)看萬用(yong)表(biao)上指(zhi)示(shi)數，如果表(biao)針不動，可依次改(gai)放(fang)低(di)檔(dang)，直到(dao)指(zhi)示(shi)出(chu)具體的數據即為(wei)(wei)該設(she)備(bei)(bei)的漏電電壓。如果表(biao)筆(bi)在(zai)(zai)(zai)最低(di)檔(dang)時(shi)仍(reng)無指(zhi)示(shi)，即表(biao)示(shi)該設(she)備(bei)(bei)不存在(zai)(zai)(zai)漏電現象。 2、用(yong)驗(yan)電(dian)筆檢查是否漏電(dian)。檢查者手握驗(yan)電(dian)筆直接與用(yong)電(dian)設備(bei)的金屬外殼相接，當驗(yan)電(dian)筆中的氖管(guan)發亮(liang)時，即說明該設備(bei)有(you)(you)漏電(dian)現象，且漏電(dian)電(dian)壓(ya)較高。當氖管(guan)不(bu)亮(liang)時，則可能是漏電(dian)電(dian)壓(ya)低氖管(guan)亮(liang)不(bu)起來，也可能就(jiu)沒有(you)(you)漏電(dian)電(dian)壓(ya)。
怎么用萬用表測LED燈箱是否漏電 嚴(yan)格的(de)(de)說(shuo)LED測(ce)試漏(lou)電(dian)(dian)(dian)(dian)流(liu)(liu)是(shi)要(yao)(yao)用(yong)(yong)專業的(de)(de)光(guang)電(dian)(dian)(dian)(dian)測(ce)試儀(yi)的(de)(de),如(ru)(ru)果(guo)(guo)沒(mei)有專業設備可(ke)以用(yong)(yong)萬(wan)(wan)用(yong)(yong)表來(lai)粗測(ce)下,用(yong)(yong)指針(zhen)萬(wan)(wan)用(yong)(yong)表(47型)電(dian)(dian)(dian)(dian)阻*10K檔(dang)黑筆(bi)接LED正極,紅(hong)筆(bi)接LED負(fu)極,這(zhe)時(shi)的(de)(de)電(dian)(dian)(dian)(dian)阻很(hen)的(de)(de)小(xiao),并且同時(shi)LED會點亮,這(zhe)就說(shuo)明(ming)LED是(shi)完好的(de)(de),要(yao)(yao)測(ce)漏(lou)電(dian)(dian)(dian)(dian)流(liu)(liu)需要(yao)(yao)把(ba)表筆(bi)對調一下,也就是(shi)測(ce)LED的(de)(de)反(fan)向電(dian)(dian)(dian)(dian)阻,這(zhe)時(shi)需要(yao)(yao)把(ba)萬(wan)(wan)用(yong)(yong)表切(qie)換到歐姆*10K擋,測(ce)出的(de)(de)電(dian)(dian)(dian)(dian)阻應該是(shi)無窮大(da)或者指針(zhen)只是(shi)輕微擺(bai)動,如(ru)(ru)果(guo)(guo)電(dian)(dian)(dian)(dian)阻很(hen)小(xiao)就說(shuo)明(ming)LED漏(lou)電(dian)(dian)(dian)(dian)或是(shi)漏(lou)電(dian)(dian)(dian)(dian)流(liu)(liu)過大(da),阻值越小(xiao)說(shuo)明(ming)漏(lou)電(dian)(dian)(dian)(dian)流(liu)(liu)越大(da),漏(lou)電(dian)(dian)(dian)(dian)流(liu)(liu)很(hen)大(da)的(de)(de)LED則是(shi)不合格產品(pin),如(ru)(ru)果(guo)(guo)指針(zhen)擺(bai)到頭(tou)說(shuo)明(ming)這(zhe)只LED報(bao)廢了. 萬用表檢測led燈漏電 嚴格的說LED測試漏(lou)電流是(shi)要(yao)用(yong)專(zhuan)業的光電測試儀(yi)的,如果沒(mei)有專(zhuan)業設(she)備(bei)可以用(yong)萬用(yong)表(biao)來粗(cu)測下,用(yong)指針萬用(yong)表(biao)(47型)電阻*10K檔(dang)黑(hei)筆接LED正極,紅筆接LED負極,這(zhe)時的電阻很的小(xiao),并且同(tong)時LED會點亮,這(zhe)就說明LED是(shi)完好的, 要測(ce)漏(lou)電(dian)(dian)(dian)流(liu)需(xu)要把(ba)表筆對調(diao)一下,也就(jiu)是(shi)(shi)(shi)測(ce)LED的(de)(de)反向電(dian)(dian)(dian)阻,這時(shi)需(xu)要把(ba)萬用(yong)表切(qie)換到(dao)歐姆*10K擋(dang),測(ce)出的(de)(de)電(dian)(dian)(dian)阻應該是(shi)(shi)(shi)無(wu)窮大或者指針只(zhi)(zhi)是(shi)(shi)(shi)輕微擺動,如果電(dian)(dian)(dian)阻很小就(jiu)說(shuo)明LED漏(lou)電(dian)(dian)(dian)或是(shi)(shi)(shi)漏(lou)電(dian)(dian)(dian)流(liu)過大,阻值越(yue)小說(shuo)明漏(lou)電(dian)(dian)(dian)流(liu)越(yue)大,漏(lou)電(dian)(dian)(dian)流(liu)很大的(de)(de)LED則是(shi)(shi)(shi)不合格產品(pin),如果指針擺到(dao)頭說(shuo)明這只(zhi)(zhi)LED報(bao)廢了. 萬能表怎么查燈線路漏電 用(yong)萬用(yong)表電阻(zu)最高擋測火(huo)線(xian)和(he)零(ling)線(xian)對地阻(zu)值(zhi)，阻(zu)值(zhi)小(xiao)于一兆歐就是(shi)漏電了。 筒燈漏電怎么檢查 LED筒燈測(ce)試漏電(dian)流是要用(yong)專業的光電(dian)測(ce)試儀的,如果沒有專業設備(bei)可以用(yong)萬用(yong)表來粗測(ce)下。 用(yong)指針(zhen)萬(wan)用(yong)表(biao)(47型(xing))電(dian)(dian)阻(zu)(zu)(zu)*10K檔黑(hei)筆接LED正極,紅筆接LED筒(tong)燈負極,這(zhe)時的(de)電(dian)(dian)阻(zu)(zu)(zu)很的(de)小(xiao),并且同時LED筒(tong)燈會點亮,這(zhe)就(jiu)說(shuo)(shuo)明(ming)(ming)(ming)LED是(shi)完好(hao)的(de),要測漏電(dian)(dian)流需(xu)要把表(biao)筆對調一(yi)下,也就(jiu)是(shi)測LED的(de)反(fan)向電(dian)(dian)阻(zu)(zu)(zu),這(zhe)時需(xu)要把萬(wan)用(yong)表(biao)切換到歐姆*10K擋,測出的(de)電(dian)(dian)阻(zu)(zu)(zu)應(ying)該(gai)是(shi)無窮大(da)或者指針(zhen)只是(shi)輕(qing)微擺動,如(ru)果電(dian)(dian)阻(zu)(zu)(zu)很小(xiao)就(jiu)說(shuo)(shuo)明(ming)(ming)(ming)LED漏電(dian)(dian)或是(shi)漏電(dian)(dian)流過(guo)大(da),阻(zu)(zu)(zu)值越小(xiao)說(shuo)(shuo)明(ming)(ming)(ming)漏電(dian)(dian)流越大(da),漏電(dian)(dian)流很大(da)的(de)LED則是(shi)不(bu)合格(ge)產品,如(ru)果指針(zhen)擺到頭說(shuo)(shuo)明(ming)(ming)(ming)這(zhe)只LED報廢(fei)了(le). 以上就是(shi)天(tian)成小編對于萬(wan)用表檢測led燈珠漏電(dian) 如何用萬(wan)用表測led燈是(shi)否損壞問(wen)題和相關問(wen)題的解答了，希(xi)望對你有用 【責(ze)任編輯：一夢】 |
