Main earthing tsarin

A mutum wanda ya san kadan game da lantarki injiniya, shi iya ze cewa duk zama gine-gine amfani da wannan ikon rarraba makircinsu: wadanda wannan biyu wayoyi, sauya kuma yi kwasfa.
Duk da haka, da yawa mafi rikitarwa, kuma cewa da hankali - kawai da "tip na dutsen kankara." Data kasance ikon rarraba haihuwarka ne daban-daban daga juna, na farko, a hanya na grounding da sa shuka da kuma kayan aiki a kan mabukaci gefe. A wasu kalmomin, su ne daban-daban earthing tsarin. Ko da yake yana da ba a bayyane yake, wannan batu yana da muhimmanci sosai.

A halin yanzu, amfani da yadu uku na asali grounding tsarin - da iri IT, TN, TT, da kuma Kalam daga gare ta. Wannan alama ce shi ne quite m, amma kawai a wannan lõkacin, idan ka san yadda za a sauya shi.

Data kasance ƙasa tsarin

Wannan definition yana nufin daya ko sauran sanyi na data kasance Grid, daukan la'akari da used embodiment grounding karshen mai amfani da kayan aiki ne kunshe a matsayin ƙasa waya da kuma cikin sifili line, kazalika ko tsaka tsaki ne na rasa. Wancan ne, wannan ra'ayi ne laima. Dangane da hade da wadannan abubuwa, akwai uku azuzuwan.

Daya daga cikin manyan - wannan TN. Shin wani raguwa da Terre Neutre, wanda za a iya fassara daga Faransa a matsayin earthed tsaka tsaki.

Yana mai ma'ana ci gaban TN-C. A nan, "C" tsaye ga "Hada". Ba kamar da suka gabata a cewa tsaka tsaki waya da kuma grounding hade cikin guda line. Wannan yanayin ba ka damar rage yawan aza Lines, amma idan akwai katsewa da waya a lokuta kunshe a cikin na'urorin sadarwa bayyana wani lantarki m, wanda shi ne mai hadarin gaske. Duk da haka, wani lokacin da irin wannan hanyar da ake amfani da in babu gwani sana'a a wani lebur na uku ƙasa waya: a kwasfansu tsakanin sifili da earthing lamba jumper aka sanya. Irin wannan grounding tsarin bada shawarar da za a yi amfani da biyu lokuta:

- akwai wani sauran hanyar da ƙasa kayan aiki;

- da layin da aka bugu da žari kare na'urar tuntube RCDs.

Kishiyar hade - a TN-S (daga «raba» - tsaga). Yana sifili da ƙasa akwai raba Lines.

Next da babban tsarin - TT. Fasali mai wakiltar biyu m grounding Lines: daya bred a gidan wuta gefe, da kuma na biyu - da mabukaci.

A karshe, daya daga cikin mafi m zabin gabatar IT tsarin a cikin abin da tsaka tsaki Lines ware sanya, da kuma duk jikin mabukaci kayan tam na rasa. A sakamakon da na halitta yayyo halin yanzu shi ne musamman bai isa a kula, da kuma ko da idan ka ba da gangan buga wani mutum a karkashin mataki na wani lantarki m hadari ba, da barin ƙasa. A wannan yanayin yana da muhimmanci don sarrafa juriya darajar.

Ga wani tsarin da za a lura mulki cewa earthing juriya iya wuce 4 ohms. Saboda haka, duk wani tsarin, daga grounding fil kuma karewa wayoyi da kuma dangane da maki, shi aka bari for yarda da wannan bukata.