Zvinoenderana neGeneral Electrical Home Inspection Standards of Practice, "Muongorori achaongorora zvese-zvinokanganisa dhizaini zvinobatisa uye mabreaker edunhu anocherechedzwa uye anoonekwa seGFCIs achishandisa GFCI tester, pazvinogoneka ... uye oongorora nhamba inomiririra yekuchinja, zvigadziriso zvemwenje uye midziyo, kusanganisira midziyo inocherechedzwa uye inonzi ndeye arc-fault circuit interrupter (AFCI) -yakachengetedzwa uchishandisa bhatani rekuongorora reAFCI, pazvinogoneka."Vatariri vepamba vanofanirwa kujairana neruzivo rwunotevera kuti vawedzere kunzwisisa maitiro ekuongorora kwakaringana uye kwakakwana kweGFCIs uye AFCIs.
The Basics
Kuti unzwisise maGFCI nema AFCI, zvinobatsira kuziva tsanangudzo dzinoverengeka.Mudziyo chikamu chegadziriro yemagetsi, kwete waya yekondukita, inotakura kana kutonga magetsi.Chiedza chemwenje muenzaniso wemudziyo.Iyo yekubuda inzvimbo mune wiring system uko ikozvino inowanikwa kune yekugovera michina.Semuyenzaniso, muchina wekugezesa dhishi unogona kubatirwa mudura mukati me sink cabinet.Rimwe zita remupopo wemagetsi ndiro chigadziko chemagetsi.
Chii chinonzi GFCI?
A ground-fault circuit interrupter, kana GFCI, mudziyo unoshandiswa muwaya dzemagetsi kuti ubvise dhigirii panoonekwa pari pakati pe conductor ane simba ne neutral return conductor.Kusaenzana kwakadaro dzimwe nguva kunokonzerwa ne "kudonha" kwemazuva ano kuburikidza nemunhu ari panguva imwe chete achisangana nevhu uye chikamu chakasimbiswa chedunhu, izvo zvinogona kuguma nekutyisa kunouraya.GFCIs dzakagadzirirwa kupa dziviriro mumamiriro ezvinhu akadaro, kusiyana neyakajairwa matunhu mabreaker, ayo anorinda kubva pakuremerwa, mapfupi maseketi uye pasi zvikanganiso.
Chii chinonzi AFCI?
Arc-fault circuit interrupters (AFCIs) imhando dzakakosha dzezvigadziko zvemagetsi kana zvitoro uye mabreaker breaker akagadzirirwa kuona uye kupindura kune zvinogona kuva nengozi magetsi arcs muimba yebazi wiring.Sezvakagadzirwa, AFCIs inoshanda nekutarisa waveform yemagetsi uye nekukasira kuvhura (kukanganisa) dunhu ravanoshandira kana vakaona shanduko yemasaisai maitiro ayo ane njodzi arc.Pamusoro pekuonekwa kwemafungu ane ngozi maitiro (arcs anogona kukonzera moto), AFCIs zvakare akagadzirirwa kusiyanisa akachengeteka, akajairwa arcs.Muenzaniso weiyi arc ndeye kana switch yakabatidzwa kana plug inodhonzwa kubva mudura.Shanduko diki kwazvo mumasaisai emhando dzinogona kuwonekwa, kuzivikanwa, uye kupindurwa neAFCIs.
2015 International Residential Code (IRC) Zvinodiwa zveGFCIs uye AFCIs
Ndokumbira utarise kuChikamu E3902 che2015 IRC chine chekuita neGFCIs uye AFCIs.
GFCI kuchengetedza inokurudzirwa kune zvinotevera:
- 15- uye 20-amp yekubikira countertop zvigadziko uye zvitoro zvekugeza ndiro;
- 15- uye 20-amp yekugezera uye midziyo yekuwachira;
- 15- uye 20-amp zvigadziko mukati memamita matanhatu ekunze kwemupendero we sink, tabhu kana shawa;
- uriri hunodziiswa nemagetsi mudzimba dzokugezera, kicheni, uye mabhavhu anopisa mvura, maspa, uye mabhavhu anopisa;
- 15- uye 20-amp midziyo yekunze, iyo inofanirwa kuve neGFCI yekudzivirira, kunze kwemidziyo isingawanike nyore iyo inoshandiswa kwechinguva chidiki-kunyungudusa chando uye iri padunhu rakatsaurirwa;
- 15- uye 20-amp zvigadziro mumagaraji uye zvivakwa zvekuchengetera zvisina kupera;
- 15- uye 20-amp midziyo mudzimba dzezvikepe uye 240-volt uye zvishoma pane zvikepe zvinosimudza;
- 15- uye 20-amp midziyo mudzimba dzepasi dzisina kupera, kunze kwekugadzika kwemoto kana mbavha;uye
- 15- uye 20-amp zvigadziro munzvimbo dzinokambaira pa kana pasi pevhu.
GFCIs neAFCIs dzinofanirwa kuiswa munzvimbo dziri nyore kupinda nekuti dzine mabhatani ebvunzo anofanirwa kusundirwa nguva nenguva.Vagadziri vanokurudzira kuti varidzi vedzimba uye vaongorori vaedze kana kutenderera mabreaker uye midziyo nguva nenguva kubatsira kuona kuti zvinhu zvemagetsi zviri kushanda nemazvo.
Kudzivirirwa kweAFCI kunokurudzirwa pa15- uye 20-amp outlets pamasekete ebazi emakamuri ekurara, makabati, mapako, makamuri okudyira, makamuri emhuri, mukoridho, makicheni, nzvimbo dzekuwachira, maraibhurari, makamuri ekugara, parlors, makamuri ekutandara, uye zuva makamuri.
Makamuri akafanana kana nzvimbo dzinofanirwa kuchengetedzwa neimwe yeiyi inotevera:
- musanganiswa-mhando AFCI yakaiswa yedunhu rese rebazi.NEC ya2005 yaida maAFCI emhando yemubatanidzwa, asi musi waNdira 1, 2008 usati wasvika, maAFCI ebazi/anodyisa akashandiswa.
- bazi/feeder-type AFCI breaker yakaiswa papanera pamwe chete neAFCI receptacle pabhokisi rekutanga rekuburitsa padunhu.
- yakanyorwa yekuwedzera arc-protection yedunhu breaker (iyo isisiri kugadzirwa) yakaiswa papanera pamwe chete neAFCI receptacle yakaiswa panzvimbo yekutanga, apo ese anotevera mamiriro anosangana:
- iyo wiring inoenderera mberi pakati pekutyora uye AFCI yekubuda;
- kureba kwetambo hakusi kukuru kudarika mamita makumi mashanu kune 14-gauge wire, uye mamita makumi manomwe kune 12-gauge wire;uye
- bhokisi rekutanga rekuburitsa rinoiswa chiratidzo seyokutanga kubuda.
- chigadziko che AFCI chakanyorwa chakaiswa panzvimbo yekutanga padunhu pamwe chete neyakanyorwa overcurrent-protection mudziyo, uko zvese zvinotevera zvinosangana:
- iyo wiring inoenderera mberi pakati pechigadziro uye chigadziko;
- kureba kwepamusoro kwetambo hakusi kudarika mamita makumi mashanu kune 14-gauge wire uye mamita makumi manomwe kune 12-gauge wire;
- chokutanga chinobuda napo chakaiswa chiratidzo chekuti ndiyo yekutanga kubuda;uye
- musanganiswa we overcurrent-protection device uye AFCI receptacle inoonekwa sekusangana nezvinodiwa zvemubatanidzwa-mhando AFCI.
- chigadziko cheAFCI uye nzira yesimbi wiring;uye
- chigadziko che AFCI uye kongiri encasement.
Summary
Muchidimbu, kuti ive nechokwadi chekuti madhigirii edunhu nezvigaba zviri kushanda nemazvo, varidzi vedzimba nevanoongorora dzimba vanofanirwa kupota vachitenderera kana kuyedza zvikamu zvemagetsi kuti zvishande zvakanaka.Iyo ichangoburwa yekuvandudza yeIRC inoda chaiyo GFCI uye AFCI dziviriro ye15- uye 20-amp yekugamuchira.Vatariri vepamba vanofanirwa kujairana nemirairo mitsva iyi kuti vaone kuyedzwa kwakanaka uye kuongororwa kweGFCIs uye AFCIs.
Nguva yekutumira: Sep-22-2022