Nzwisisa Arc Mhosho uye AFCI Dziviriro

Izwi rekuti "arc fault" rinoreva mamiriro ezvinhu anoregedzera kana corroded wiring connections anogadzira kudhumhana kunokonzeresa kuti magetsi apenye kana kuti arc pakati pemasimbi ekusangana.Iwe uri kunzwa arcing kana iwe uchinzwa mwenje chinja kana chinobuda kurira kana kuridza muridzo.Iyi arcing inoturikira kupisa uyezve inopa chinokonzeresa moto wemagetsi, izvi zvinopwanya kuvharisa kwakatenderedza waya yekuitisa munhu.Kunzwa switch buzz hazvireve kuti moto wave pedyo, asi zvinoreva kuti pane njodzi inogona kugadziriswa.

Arc Fault vs. Ground Fault vs. Short Circuit

Mazwi ekuti arc kukanganisa, mhosva yepasi, uye pfupi-dunhu dzimwe nguva yakakonzera kuvhiringika, asi ivo vane zvirevo zvakasiyana, uye imwe neimwe inoda imwe nzira yekudzivirira.

• Kukanganisa kwearc, sezvataurwa pamusoro, kunoitika kana waya dzisina kusimba kana waya dzakaora dzichikonzera kupisa kana kurovera, zvinogona kugadzira kupisa uye mukana wemoto wemagetsi.Inogona kunge iri nhanho yedunhu pfupi kana kukanganisa kwepasi, asi mukati uye pachayo, kukanganisa kwearc hakugone kuvhara kana GFCI kana dunhu redunhu.Nzira yakajairika yekudzivirira kukanganisa kwearc ndeye AFCI (arc-fault circuit interrupter) - ingave AFCI yekubuda kana AFCI circuit breaker.AFCIs anoitirwa kudzivirira (kuchengetedza) njodzi yemoto.
• A ground fault zvinoreva imwe mhando yeshort circuit umo ine simba "hot" current inobata netsaona pasi.Dzimwe nguva, kukanganisa kwepasi kunonyatsozivikanwa se "pfupi-ku-pasi."Kufanana nedzimwe mhando dzemapfupi mapfupi, waya dzedunhu dzinorasikirwa nekupokana panguva yekukanganisa kwepasi, uye izvi zvinokonzeresa kuyerera kusingadzoreki kwezvino izvo zvinofanirwa kuita kuti muparadzi wedunhu afambe.Zvisinei, muparadzi wedunhu angasashanda nekukurumidza kudzivirira kuvhunduka, iyo Code yemagetsi inoda midziyo yekudzivirira yakakosha nekuda kwechikonzero ichi, ndosaka GFCIs (ground-fault circuit interrupters) inoda kuiswa munzvimbo dzinowanzoita kukanganisa kwepasi, semapombi ari pedyo nepombi dzemvura kana munzvimbo dzekunze.Vanogona kuvhara dunhu kunyangwe kusati kwanzwa kuvhunduka nekuti izvi zvishandiso zvinonzwa simba rinochinja nekukurumidza.GFCIs, saka, chishandiso chekuchengetedza chinoitirwa kunyanya kuchengetedzakuvhunduka.
• A short circuit inoreva chero mamiriro ezvinhu umo simba "rinopisa" rinorasika kunze kweiyo yakamisikidzwa wiring system uye rinosangana neimwe nzira yekusarerekera wiring kana nzira yekudzika.Kuyerera kwezvino kunorasikirwa nekudzivisa uye kamwe kamwe kunowedzera muhuwandu kana izvi zvichiitika.Izvi zvinokurumidza kuita kuti kuyerera kupfuure amperage kugona kwedunhu rinotyora kudzora dunhu, iro rinowanzo famba kumisa kuyerera kwezvino.

Code Nhoroondo yeArc Mhosva Dziviriro

Iyo NEC (National Electrical Code) inogadziridza kamwe chete pamakore matatu ega ega, yakawedzera zvishoma nezvishoma zvinodiwa zvekudzivirira kwearc-fault pamaseketi.

Chii chinonzi Arc-Fault Dziviriro?

Izwi rekuti "arc-fault dziviriro" rinoreva chero mudziyo wakagadzirirwa kudzivirira kubva kune yakaipa kubatana inokonzera arcing, kana kupenya.Mudziyo wekuona unonzwa arc yemagetsi uye unopwanya dunhu kudzivirira moto wemagetsi.Arc-fault dziviriro michina inodzivirira vanhu kubva munjodzi uye yakakosha pakuchengetedza moto.

Muna 1999, Code yakatanga kuda kuchengetedzwa kweAFCI mumasekete ese achidyisa makamuri ekurara, uye kubva mugore ra2014 zvichienda mberi, anenge ese masekete anopa nzvimbo dzekugara munzvimbo dzekugara anodiwa kuve nekuchengetedzwa kweAFCI mukuvaka kutsva kana mukugadzirisa zvirongwa.

Nezve 2017 edition yeNEC, mazwi eChikamu 210.12 anoti:

Zvose120-volt, single-phase, 15- uye 20-ampere mapazi maseketi anopa zvitoro kana midziyo yakaiswa mumakicheni ekugara, makamuri emhuri, dzimba dzekudyira, dzimba dzekutandarira, makamuri, maraibhurari, mapako, yekurara, dzimba dzezuva, dzimba dzekutandarira, makamuri, muhoro, nzvimbo dzekuwachira, kana makamuri akafanana kana nzvimbo dzichachengetedzwa neAFCIs.

Kazhinji, masekete anogashira kuchengetedzwa kweAFCI kuburikidza neakakosha AFCI edunhu mabhureki anochengetedza zvese zvekubuda nemidziyo pamwe nedunhu, asi kana izvi zvisingaite, unogona kushandisa AFCI zvitoro semhinduro dzekuchengetedza.

Kudzivirirwa kweAFCI hakudiwi kune kuisirwa kuripo, asi kana dunhu rinowedzerwa kana kuvandudzwa panguva yekugadziridzwa, rinofanira kubva rawana kuchengetedzwa kweAFCI.Saka, nyanzvi yemagetsi inoshanda pane yako system inosungirwa kugadzirisa dunhu neAFCI dziviriro sechikamu chechero basa raanoita pairi.Nenzira inoshanda, zvinoreva kuti zvinenge zvese zvinotsiviwa nemutsivi wedunhu zvino zvichaitwa neAFCI breakers mune chero hutongi hwekutevera NEC (National Electrical Code).

Hadzisi nharaunda dzese dzinotevedzera NEC, zvisinei, ndapota bvunza kune zviremera zvemuno nezve zvinodiwa maererano nekuchengetedzwa kweAFCI.