Chii chinonzichinopwanya dunhu rinobuda?
Mudziyo wekudonhedza mvura, inoshandiswa kudzivirira kuvhunduka kwemagetsi. Kana paine kubuda kwemvura, simba remagineti rinogadzirwa nechinhu chikuru chinobata, coil inoparadzanisa, coil inoparadzanisa uye switch huru.
Mudziyo wekudonhedza mvurabasa: kana dunhu pfupi kana kuwandisa kwemagetsi kuchigona kuitwa nenguva, bvisa simba.
Kana paine chidziviriro chekubuda kwemvura mudunhu, kana paine dambudziko rekubuda kwemvura kana kuwanda kwemvura, chidziviriro chekubuda kwemvura hachishande uye chinotumira chiratidzo chekurira uye chechiedza. Hapana kudzima nemaoko kunodiwa.
Zvinangwa zvikuru:
1. Kuchengetedza kuchengetedzeka kwemunhu kana paine kubuda kwemvura mumidziyo yemagetsi yemumba kana yemuboka revanhu.
2. Inofanira kuiswa munzvimbo dzeveruzhinji nenzvimbo dzinobvira moto nedzinoputika (senge nzvimbo dzekugadzira zvinhu, matura, nezvimwewo) uko vanhu vanowanzo famba vachidzivirira moto nedzimwe tsaona dzinokonzerwa nekubuda kwemagetsi.
Haikwanise kugovana simba remagetsi nezvimwe zvishandiso zvemagetsi.
1. Swichi yekudzivirira kubuda kwemvura inogona kudzima magetsi nekukurumidza kana paine grounding short circuit kana grounding fault mu low-voltage power network, zvichiita kuti midziyo yekudzivirira isakuvare.
2. Kana switch yekudzivirira kubuda kwemvura nemidziyo yemagetsi zvikakundikana panguva imwe chete, dambudziko rekubuda kwemvura pamidziyo yemagetsi rinogona kubviswa nenzira yakasarudzwa kuitira kuti pasave nekurasikirwa kwakakwana kwemagetsi, nokudaro zvichiita kuti pave nekuchengetedzeka kwemunhu uye kudzivirira kuwedzera kwetsaona dzemagetsi.
3. Mugridi yemagetsi ine waya ine simba shoma ine mawaya matatu, kana paine dambudziko rekudzika kwemagetsi muchikamu chimwe chete, simba remagetsi rinogona kudzima nekukurumidza uye panguva yakakodzera kudzivirira kukura kwetsaona.
4. Kusarudzwa kweswitch yekudzivirira kubuda kwemvura kwakanaka kwazvo nekuda kwemabasa ayo maviri ekuwedzera kwemhepo (TN -C) uye kuburitsa simba zvakanyanya (TT-B).
5. Kana nzvimbo mbiri dzemota dzamira nekuda kwekuvhundutswa kwemagetsi kana chimwe chikonzero, simba rinogona kudzima nekukurumidza uye zvakavimbika.
Usashandise magetsi echikamu chimwe chete pakuisa chiedza.
Kuiswa kwekudzivirira kubuda kwemvura: 1. Kuiswa kwekudzivirira kubuda kwemvura kunofanirwa kutevedzera mitemo yakakodzera, nzvimbo yacho inofanira kunge yakasimba uye yakavimbika, uye inofanira kuvharwa sezvinodiwa.
2. Chiyero chemudziviriri wekudonha kwemvura chinofanira kusarudzwa nemushandisi zvichienderana nekushandiswa kwacho, asi kazhinji hachifanirwe kudarika simba rekushanda rakachengeteka (30mA).
3. Muenzaniso uye zvirevo zvemudziviriri wekudonha kwemvura zvinofanira kukodzera tambo yekubatanidza.
4. Magumo emudziviriri wekudonhedza mvura uye magumo ese ari maviri emutsetse wekutakura zvinhu anofanira kunge akabatana zvakanaka uye akasimba uye akavimbika.
5. Kana zvikaonekwa kuti chinhu chinodzivirira kubuda kwemvura chine ruzha rusina kujairika, kukwira kwekupisa, kunzwa kwemaoko zvisina kujairika, nezvimwewo, nyanzvi yemagetsi inofanira kuwanikwa nenguva kuti iongororwe uye igadziriswe.
6. Zvidziviriro zvekudonha kwemvura hazvifanirwe kushandiswa kwenguva yakareba uye kazhinji hazvifanirwe kushandiswa kwenguva inopfuura hafu yegore. Kana zvichidikanwa kuti urambe uchishandisa zvidziviriro zvakadaro, zvinofanirwa kuongororwa zvizere zvisati zvashandiswa.
Haikwanise kutsivachinopwanya dunhu chinobudanesokisi yakajairika.
Nekuti soketi yakajairika pachayo goko resimbi uye kuvharwa kwewaya dzemukati hazvigone kudzivirira, saka kana kubuda kwemvura, magetsi anopinda mumuviri nesoketi, zvichikonzera tsaona yekuvhunduka kwemagetsi.
Kushandisa magetsi zvakachengeteka kwakakosha zvikuru. Hazvina chekuita nekuchengetedzeka kwedu chete, asiwo nevanhu vakatipoteredza. Kana ukasateerera kushandiswa kwemagetsi panguva yekuchengetedza, kusangwarira kuchaita kuti utye magetsi. Saka, muhupenyu hwezuva nezuva unofanira kuva netsika yakanaka yemagetsi akachengeteka.
Swichi yekudzivirira kubuda kwemvura inogona kuunza yambiro yemoto yemagetsi, kutarisa moto wemagetsi, kurasa moto wemagetsi nezvimwe zvinhu. Swichi yekudzivirira kubuda kwemvura inogona kuiswa muimba yekugovera mvura inogonawo kuiswa munzvimbo imwe neimwe yekudzivirira nzvimbo yacho, uye inogona kuderedza mukana wetsaona dzinokonzerwa nekubuda kwemvura.
Kana uchishandisachinopwanya dunhu chinobuda, zvinhu zvinotevera zvinofanira kucherechedzwa:
1. Usati waisa circuit breaker inobuda, zvakakosha kuti unyatsoongorora kana chitarisiko uye mitsetse yekubatanidza ye leaky circuit breaker yakanaka uye kana waya dzinoshandiswa dzichizadzisa zvinodiwa. Kuti uone kana zero sequence current value ye leaky circuit breaker iri mukati menguva yakatarwa, hapafanirwe kuve nechiitiko chisina kujairika chisati chashanda leaky circuit breaker.
2. Pakuisa leakage circuit breaker, kutarisirwa kunofanira kupihwa pakushandiswa kwakakodzera kwefuse ine rated current value uye simba rinofanira kugurwa usati watarisa leakage protector. Leakage circuit breakers haifanirwe kushandiswa kana external circuit ikapinda mukamuri kana kana paine short-circuit fault.
3. Pakuisa circuit breaker inodonhedza mvura, circuit breaker inofanira kuiswa panzvimbo yakati sandara uye yakasimba uye inofanira kusimbiswa zvakanaka kana kuti kusiyiwa zero.
4. Mushure mekuiswa, leakage circuit breaker inofanira kuongororwa nguva nenguva nekudzima simba remagetsi, uye kana risingakwanise kubatanidzwa mukati memaminitsi maviri, simba remagetsi rinogona kubatanidzwazve.
Nguva yekutumira: Kukadzi-20-2023