Uyini usayizi wentambo wokushintsha okungu-40 amp
Okuqukethwe
Ngezinto zikagesi eziningi ezisindayo, njengezindawo zokupheka, ezomisa ngogesi, nezigaba zikagesi, uzodinga i-40-amp breaker.
Ukuba ne-40 amp circuit breaker kusiza ukuvikela izinto zakho zikagesi. Kodwa uma ungakhethi igeji efanele yocingo, ubeka engcupheni ukuphepha kwamasekhethi nezingxenye zakho. Ngakho-ke, uma unenkinga yokukhetha usayizi wentambo we-40 amp breaker yakho, ngilapha ukuze ngikunike amathiphu.
Ngokuvamile, intambo yethusi engu-8 AWG iwusayizi omncane wentambo ye-40 amp breaker. Nokho, intambo engu-8 AWG ifanele ubude obungaphansi kwamafidi angu-100. Kungenjalo, ungasebenzisa futhi izintambo ezi-6 AWG.
Ngizongena imininingwane eyengeziwe ngezansi.
Usayizi Wocingo we-40 Amp Circuit Breaker
I-8 AWG wire yethusi iyindlela efanelekile kakhulu ye-40 amp breaker. Singamaka le ntambo njengosayizi omncane wentambo wama-amps angu-40. Nokho, kufanele uhlole izici ezimbili ezilandelayo.
Ubude bezintambo
Uma usebenzisa izintambo ezingu-8 AWG ku-40 amp circuit breaker, ubude bentambo kufanele bube ngaphansi kwamafidi angu-100. Kumasekhethi kagesi, ukumelana kuyanda njengoba ubude bocingo bukhula.
Ngokomthetho ka-Ohm,
- V = Amandla kagesi
- I = ukugeleza
- R = ukumelana
Ngakho-ke, ukwehla kwe-voltage kuyehluka kuye ngokumelana.
Ngamanye amazwi, uma usebenzisa intambo engu-240V udlulele ku-8 AWG ngamafithi angu-50, kuphawu lwezinyawo ezingu-50 ngeke uthole i-240V egcwele. Kunalokho, uzothola inani elincane. Sikubize lokhu kwehla kwamandla kagesi. Kunevelu enconyiwe yalokhu kwehla kwamandla kagesi. Kufanele ugcine ukwehla kwamandla kagesi kungaphansi kuka-3% uma kukhanyiswa kanye no-5% kwezinye izinto zikagesi.
Uma usebenzisa intambo engu-8 AWG eyizinyawo ezingu-100 noma ngaphezulu, i-voltage yehla ngaphansi kwezinga elinconyiwe. Uma lokhu kwenzeka, into esetshenziswayo ngeke ithole i-voltage edingekayo. Lokhu kungase kulimaze izinto zikagesi.
Izintambo zokwakha
Ngaphandle kobude, into esemqoka okufanele icatshangelwe lapho ukhetha izintambo ezingu-8 ze-AWG yizinto ucingo olwenziwa ngazo. Isibonelo, uma ucela izintambo ezingu-8 ze-AWG esitolo sezingxenyekazi zehadiwe yangakini, umthengisi angase abuze ukuthi yiluphi uhlobo lwezintambo oludingayo, i-aluminium noma ithusi.
Kunesizathu esihle salo mbuzo. Nakuba ithusi ne-aluminium kokubili kungama-conductor kagesi amahle kakhulu, ithusi liyisinqumo esingcono kakhulu kune-aluminium. I-Copper ingumqhubi omuhle kakhulu.
Ngakho-ke kumjikelezo we-40A, 240V, i-8 AWG wire yethusi iyisinqumo esihle kakhulu. Kodwa-ke, uma uzosebenzisa i-aluminium, uzodinga izintambo ezi-6 AWG zesekhethi efanayo.
Ingabe intambo yethusi engu-6 AWG ilungele i-40 amp breaker?
Eqinisweni, i-6 AWG wire ifaneleka kakhulu kuma-65 amp circuit breaker. Kodwa lokho akusho ukuthi awukwazi ukuyisebenzisa nge-40 amp breaker. Ukusebenzisa izintambo ezingu-6 AWG kuzokunikeza indawo yokunweba. Uma kunesidingo, ungashintsha i-40 amp breaker nge-50 noma 60 amp eyodwa.
Ithiphu: Ukusebenzisa intambo engu-6 AWG ku-40 amp circuit breaker akwephuli imithetho ye-NEC.
Mangaki ama-amps angabamba i-40 amp circuit breaker?
I-circuit breaker ngayinye izoqala ukukhubeka lapho ifinyelela umthamo wayo omkhulu. Ku-40 amp breaker, isilinganiso esiphezulu samanje singama-amps angu-40. Ngale ndlela i-breaker izophatha ama-amps angu-40 ngaphandle kwezinkinga. Kodwa lapho umthwalo udlula ama-amps angu-40, i-breaker izohamba.
Nakuba ama-circuit breaker engakwazi ukuphatha umthwalo omkhulu ohambisanayo, i-NEC idinga umthamo omkhulu ukuba ube ngu-80%. Nansi eminye imininingwane ngalo mthetho.
Umthetho we-NEC wama-80%.
Kufanele kusetshenziswe u-80% kuphela womthamo ogcwele we-circuit breaker. Umjikelezo kufanele ukwazi ukugcina lo mkhawulo amahora angu-3 noma ngaphezulu.
Ngakho-ke uma sicabanga nge-40 amp breaker,
Ngakho-ke, gcina umthwalo kumkhawulo we-32 amp kuma-breaker angu-40 amp. Sebenzisa i-circuit breaker enkulu uma isifunda sakho sidonsa ama-amps angaphezu kwama-32 njalo. Isibonelo, i-50 amp breaker ingaba yisinqumo esihle.
Ithiphu: Amanye ama-circuit breaker akalwe ngo-100%.
Kungani kufanele ngilandele umthetho we-NEC we-80%?
Uma isekethe ihlala idonsa umthwalo omningi, izoshisa ngokuhamba kwesikhathi. Okufanayo kuzokwenzeka ngama-circuit breakers. Lokhu kuzodala ukuthi ama-circuit breaker aqale ukukhubeka. Noma ukushisa ngokweqile kungase kubangele umlilo kagesi. (1)
Mangaki ama-watts angaphathwa yi-40 amp breaker?
Noma nini lapho sibala amandla, sisebenzisa umthetho ka-Joule.
Uma sicabangela i-40 amp, i-240 V yamandla kagesi:
Ngokwethiyori, amandla = 40 × 240 = 9600 W.
Kodwa awukwazi ukusebenzisa amandla aphezulu we-breaker circuit. Kufanele usebenzise kuphela u-80%.
Ngakho-ke
Amandla (kucatshangelwa amandla angu-80%) = 40 × 80% × 240 = 7680 W.
Ngakho, i-40 amp breaker (isilinganiso esingu-80%) ingakwazi ukuphatha ama-watts angama-7680. Uma i-circuit breaker ikalwe ngo-100%, ingakwazi ukuphatha ama-watts angu-9600.
Bese ukhumbula: Kungakhathaliseki ukuthi usebenzisa i-80% noma i-100% ye-circuit breaker elinganiselwe, i-8 AWG wire iyisinqumo esihle kumasekhethi angenhla.
Unquma kanjani usayizi wentambo?
Igeji yocingo yaseMelika, eyaziwa nangokuthi i-AWG, iyindinganiso yaseNyakatho Melika yosayizi bezintambo. Lokhu kuzosinika isilinganiso esisekelwe kububanzi bocingo kanye nomthwalo ucingo oluthile olungawuthwala.
Inombolo ehambisanayo izophrintwa ku-insulation yocingo. Izimpawu zizokhombisa 4 AWG, 6 AWG, 8 AWG, 10 AWG, njll. Kulezi zinombolo ungakwazi ukubala ububanzi bocingo kanye namandla angaphathwa ucingo.
Isibonelo, intambo engu-12 AWG inobubanzi obungamayintshi angu-0.0808, futhi intambo engu-6 AWG inobubanzi obungu-0.162 amayintshi.
Njengoba ubona, ngezinombolo zegeji ephezulu ubukhulu bocingo buyanda.
Ingabe i-diameter ye-wire ihlanganisa ukufakwa?
Abakhiqizi bezintambo ze-AWG abafaki ukufakwa kwezintambo kusayizi wezintambo. Ngakho-ke, ububanzi be-wire ububanzi be-conductor.
Yini okufanele ngiyenze uma ngingasiboni isilinganiso sokuvala ucingo?
Uma ungasiboni isilinganiso ekufakweni kwentambo, sebenzisa i-digital caliper ukuze ulinganise ukushuba kwentambo. Nansi inkomba elula yokuthi ungakwenza kanjani.
- Okokuqala, hlubula intambo ofuna ukuyikala.
- Bese ubeka i-conductor engenalutho emhlathini omile we-digital caliper.
- Okulandelayo, letha umhlathi onyakazayo ocingweni.
- Ngemva kwalokhu, thola ukufundwa kusibonisi sedijithali.
- Okokugcina, sebenzisa Ishadi Lereferensi Yosayizi Wezintambo ze-AWG ukuze uthole isilinganiso esifanele salolo cingo.
Sebenzisa lesi sixhumanisi kumasayizi wezintambo ze-AWG.
Ithiphu: Amanye ama-caliper angase abonise isikali ngamamilimitha. Futhi ezinye zizovela ngamayintshi.
Nazi ezinye izintambo zethusi ezivamile kanye nobubanzi bazo kanye nezilinganiso ze-amperage.
| i-wire gauge | Ububanzi (amayintshi) | Ikalwe okwamanje |
| 12 awu | 0.0808 | Ama-amplifiers angama-20 |
| 10 awu | 0.1019 | Ama-amplifiers angama-30 |
| 8 awu | 0.1285 | Ama-amplifiers angama-40 |
| 6 awu | 0.1620 | Ama-amplifiers angama-65 |
Ukufingqa
Emakhishini esimanje, ukuba nesekethe kagesi okuthembekile kubalulekile. Ngeke uthole isekethe kagesi yekhwalithi enhle ngaphandle kwezintambo ezinosayizi ofanele. Ngakho-ke, uma usebenzisa i-40 amp breaker ekhaya lakho, qiniseka ukuthi usebenzisa izintambo ezingu-8 AWG noma ezingu-6 AWG. Izokuvikela nakanjani wena nezinto zakho zikagesi zasendlini. (2)
Bheka ezinye zezihloko zethu ngezansi.
- Lapho ungathola khona ucingo oluwugqinsi lwethusi lwezicucu
- Imuphi usayizi wentambo wama-amps angama-30 amafidi angama-200
- Isebenza kanjani izintambo ezindongeni zivundlile
Izincomo
(1) umlilo - https://www.britannica.com/science/fire-combustion
(2) amakhishi esimanje - https://www.houzz.com/photos/modern-kitchen-ideas-phbr1-bp~t_709~s_2105
Izixhumanisi zevidiyo
