Rufi juriya: bukatar ma'aunai

Idan kun kasance saba da topic da wutar lantarki (ko da kadan), dole ne a sanar da irin wannan siffa a matsayin lantarki wayoyi rufi juriya daga karfe wayoyi. rufi ingancin kayyade AMINCI na wayoyi, da tsarin tabbatar da ingancinsu na maida su ba kome domin so abu. Aiki dokoki nuna m lokaci-lokaci review na bukata matakin na rufi aiki wayoyi hanya wadda ta ƙunshi a aunawa da juriya da yin amfani da ƙasa.

Standards yau da kullum cak data kasance rufi amfani a cikin gida da kuma a aiki da musamman dokokin lantarki da kayayyakin. Daga gare su, Gost, PUE (dokoki na lantarki na'urorin) da sauransu. A cikin wani hali, da gwajin na rufi da juriya da ya kamata a auna Megger. The na'urar yana a cikin abun da ke ciki wani irin ƙarfin lantarki source, tushen ƙarin resistances da magneto-lantarki rabo-mita. Kamar yadda irin ƙarfin lantarki janareta shan iko, amma dace embodiment da manual drive.

Tun megaommetry aiki a gaban mai tushe na kai tsaye halin yanzu, shi ne zai yiwu domin sanin rufi juriya a dagagge ƙarfin lantarki. Ya kamata ka manta da cewa a cikin hali na a haɗa megger da gwajin naúrar, wanda nuna juriya muhimmanci underestimated, to, shi yana raguwa a matsayin fitarwa ƙarfin lantarki ma'auni na'urar.

Auna da rufi juriya ya zama, a cikin hãlãye:

1. a cikin gwajin kewaye, irin ƙarfin lantarki-free.
2. Idan kewaye juriya darajar ba a sani, wajibi ne a kafa dokin ji ga iyakar darajar.
3. Short-circuited ko gaba daya da nakasa duk aiki kewaye abubuwa da low matakan da rufi, ciki har da capacitors, na'urorin da semiconductors.
4. Ground da kewaye karkashin gwajin a lokacin da aunawa aiki.
5. Samar da iko ga megohmmeter cikin minti. Dauki karatu a kan sikelin da na'urar.
6. Bayan kammala ma'aunai, da iyakar da na'urar don cire haɗi daga kewaye, cire tara cajin daga kewaye grounding Hanyar.

Ji na rufi da juriya da wayoyi yankunan da manyan capacitance darajar da aka fi yi bayan cikakken lõkacin fatara daga oscillation na kayan aiki akan. Girma a lighting da kuma ikon networks gudu a cikin yanayin da suka hada, dage farawa daga cikin fis-mahada da kuma katse daga cibiyar sadarwa sakamako na lantarki karba.

Dokokin haramta a gudanar da ma'aunai a kan layin da aza a kusa da layin, wanda shi ne a karkashin wani babban ƙarfin lantarki, kazalika da haramta daga aiki a lokacin da wani hadiri. Musamman a} asashen da rufi juriya rinjayar da zazzabi tsarin mulki. A auna a zazzabi na 5 digiri ko a sama.

Akwai zama shigarwa DC, inda iko na'urar abubuwa a matsayin voltmeter aunawa da rufi juriya, da ciwon babban mataki na ciki da juriya. A wannan yanayin, dubi yi na uku irin na danniya: tsakanin sanduna, tsakanin duniya da kuma kowane iyakacin duniya.

Gogaggen electricians ne model na lantarki megohm mita: F4101, F4102. su aka saba yi aiki a wani irin ƙarfin lantarki na 100, 500 da kuma 1000 V. Har ila yau a cikin shakka daga cikin mazan iri megohm mita daga M4100 / 1 da kuma M4100 / 5, da kuma MS-05.