Zvinobudirira ivhu gandiwa

Kuti tizvidzivirire munhu anokuvadza zvinokonzerwa zvivako dzemagetsi akashandisa anokosha sechokudzivirira RCD, fuses, MCB (dunhu namapoporodzi) uye dzimwe kuchengeteka zvinhu. The inonyanya kufarirwa hurongwa kuchengeteka kwevanhu anonzi kuva gandiwa zvevhu. Ino chaiyo earthing mudziyo vane chinangwa kubatanidza kuti "pasi" nomunhu zvidimbu magetsi. Kana, mune mamwe mazwi, zvakabatana mumwe ari chinjikira uye kutwasuka electrodes (diverters), akaisa pasi muvhu pamusoro pane imwe kudzika.

On kurwisa kwemutariri iri sei:

• kutaipa, nemamiriro ezvinhu ivhu;
• ehupfumi of electrodes;
• Depth electrodes chiitiko;
• uwandu electrodes.

Functional ivhu rakakamurwa mhando mbiri:

• Protection - dzakagadzirirwa kuchengetedza mano ari magetsi pfupi-dunhu, vanhu vaibva zvinokonzerwa dzenzvimbo ngozi kuti kuitika panguva yacho mhosva.
• Vashandi - zvitsigiso vachishuva chokupika magetsi kugadzwa nomukombiyuta grounding pakati mhenyu nhengo dzayo.

Muitiro pakusika gandiwa

Musatya pamusoro mubvunzo sei kuti pasi loop, nekuti kuunganidza mune tsika, haakonzeri zvinetso zvakakomba. In basa divertors kuti grounding kungava dzakakodzera simbi dzinoita pamwe upamhi chikamu 45 kana 60 neMM, zvikwepa pakati diameters siyana. Grounding zano iri muchimiro netriangle akanaka nokuti kana munhu zvichibvira kutyora diverter kubatana mune rimwe mitsetse, kufanana mitsetse kuramba operative.

Best wakanyatsokodzera nokuti hunowedzera redunhu peaty ivhu mhando loamy nevhu uye ivhu rurefu mwero mwando. The kuipa rwevhu - matombo ivhu.

Zvinokurudzirwa kuti kusarudza yakananga nzvimbo kuunganidza pasi loop, imwe optimum nzvimbo zvinogona kunzi sezvo nzvimbo yakapoteredza switchgear. Grounding ngachibikwe alloys mhangura kana dema kana kwakakurudzira simbi pasina mufananidzo.

Foshoro vakachera mugero muchimiro netriangle, kumativi 3 metres, kudzika ishoma - 0.5-0.8 mamita. The netriangle vertices Akarovera simbi earthing pakureba 2.5-3 m. Kumigumo zvinogona Vakarodza kuti simbi nyore kuisa pasi. Above pasi kuchengeterwa ikakuruma, kusvika masendimita 20, iri welded kune chinjikira simbi kuzosunungura navo, zvichiita kuti simba magetsi nhoo. weld haangavi okushamisira kubata Anti-ngura kupenda kana Somuenzaniso, bhitumini.

Pashure vanomhanyisa ishande kuyerwa redunhu pasi, sezvamakaropafadzwa nokudzora kuyerwa rinoitwa kwaro nemishonga pamwero. Izvi zvinoitwa nokuda mudziyo, anonzi megohmmeter. Akazodzokorora kuyerwa akaita kanenge 1 nguva pagore. Nokuti chinangwa ichi kuburikidza grounding mudziyo anofanira kuvhara redunhu pamwe hazvizivi Magetsi, zvino kuti kuzvidzora kuyerwa mudunhu voltage donhwe. Pedyo huru electrode dzinongoda ebetsero uye batanidza kuti kunobva. Meter ngadzirambe zvinogona pedyo razero zvikuru pamusoro voltage donhwe iri huru electrode. Nzira iyi ine grounding redunhu kunoyerwa kakawanda kupfuura dzimwe nzira.