Main earthing hurongwa

Munhu anoziva zvishoma pamusoro magetsi engineering, zvingaita sokuti muzvivako zvose dzinogarwa vanoshandisa chete simba rokupa Zvirongwa: avo chete maviri waya, haizoshandisi uye nezvigadziko.
Zvisinei, zvakawanda zvikuru kwakatooma, uye kuti pfungwa - chete "muromo iceberg." Huripo simba kuparadzirwa nematunhu vakasiyana mumwe, pakutanga kwezvose, nzira grounding ari urwu chirimwa uye midziyo kurutivi mutengi. Nemamwe mazwi, zvakasiyana earthing enyika. Kunyange zvazvo zvisiri pachena, iyi ndiyo inokosha chaizvo.

Pari, zvikuru kushandiswa zvitatu zvinokosha grounding hurongwa - mhando IT, TN, TT, uye nomukaka dzaro. chiratidzo ichi rakanyatsojeka anodzidzisa, asi chete kuti nyaya, kana uchiziva kuti decrypt nayo.

Huripo pasi hurongwa

Tsanangudzo iyi zvinoreva munhu kana rimwe configuration aripo That grid, anofunga kushandiswa pachake grounding kuguma User midziyo kunobatanidzwa sezvo pasi waya uye zero mutsetse, uyewo kana kwazvakarerekera iri makateyiwa. Kureva, pfungwa iyi amburera. Zvichienderana wemishonga izvi, pane mapoka matatu.

Mumwe mukuru - TN ichi. Ane chidimbu kubva Terre Neutre, iro rinogona kushandurwa kubva French sezvo vector kwazvakarerekera.

Zviri zvinotevedzana kubva TN-C. Pano, kuti "C" anomirira "Combined". Kusiyana yapfuura pakuti kwazvakarerekera waya uye grounding zvabatanidzwa kuva chete mutsetse. Nyaya iyi kunoita kuti kuderedza uwandu vakaisa mitsetse, asi kana kuvhiringidzwa kubva waya ari zviitiko yaisanganisira namano pomumbure rinowanika ane zvemagetsi kwaniso, inova ngozi. Kunyange zvakadaro, dzimwe nguva yakadaro nzira inoshandiswa pasina unyanzvi nemhizha ari sandara rechitatu pasi waya: kupetwa pakati razero uye earthing kuonana jumper anoiswa. Kwakadaro grounding gadziriro inokurudzirwa kushandiswa munyaya mbiri:

- hapana mumwe nzira zvevhu michina;

- mutsetse wacho anowedzera anodzivirirwa mudziyo igumburwe RCDs.

Chaiwo pakatarisana Kubatana - a TN-S (kubva «yoga» - paradzanisa). It razero uye panyika vakaparadzana mitsetse.

Next huru ezvinhu - a TT. Zvayakaita inomiririra maviri akazvimirira grounding mitsetse: mumwe akaberekwa kurutivi transformer, uye wechipiri - mutengi.

Pakupedzisira, mumwe akavimbika kupfuura nzira akauya IT wemuTesitamende izvo kwazvakarerekera mitsetse yoga aita, uye zvose muviri mutengi midziyo yemagetsi makachengeteka makateyiwa. Somugumisiro yepanyama leakage Kuyerera kusakosha zvikuru, uye kunyange kana iwe netsaona yarova munhu pasi zvinoitwa wemagetsi ngozi hakusi, kusiya pasi. Muchiitiko ichi zvakakosha kudzora kuramba mutengo.

Nokuti chero hurongwa kuchengetwa kutonga kuti earthing nemishonga inogona haapfuuri 4 ohms. Saka, chero maitiro, kubva grounding hoko Kupedzwa waya uye maererano pfungwa, zvinonzi zvakaongororwa zvaidiwa zvinodiwa ichi.