Wayoyi nawa ne ke cikin 1/2 EMT?
Shin kun san cewa yawancin wayoyi masu ɗauke da ruwa mai yawa za su haifar da isasshen zafi don narkar da murfin vinyl, haifar da haɗarin wuta?
A cewar ESFI, kusan gobara 51,000, raunuka 1,400, da kuma asarar dukiya na faruwa a kowace shekara a Amurka saboda gobarar gida. Waɗannan ƙididdiga sun tabbatar da cewa dole ne ka shigar da madaidaicin wayoyi don kare dukiyarka. Shi ya sa zan koya muku daidai adadin wayoyi don 1.3 EMTs a cikin labarina.
Ina ƙarfafa ku da ku ci gaba da karantawa don gano adadin wayoyi da za ku iya dacewa da su a cikin sauran nau'ikan ducts na kebul:
Wayoyi nawa ne ke cikin mashin 1/2?
Adadin ingantattun wayoyi waɗanda zasu iya dacewa da magudanar ruwa ½-inch koyaushe zai dogara ne akan irin nau'in mashin ɗin lantarki da kuke amfani da su.
Akwai haɗarin cewa igiyoyi da yawa a cikin mashin ɗin da ke ɗauke da ruwa mai yawa za su haifar da isasshen zafi don narkar da murfin vinyl akan wayoyi masu ƙarfi, haifar da babban haɗarin wuta. Gano daidaitaccen kayan aikin magudanar ruwa shine matakin farko na tantance ƙarfin cikawa.
Lokacin da ba za ku iya amfani da kebul na NM ba don kare fallasa wayoyi na lantarki, wannan shine lokacin da kuke amfani da magudanar wutar lantarki azaman maye gurbin.
Wutar lantarki tana da matsakaicin adadin igiyoyin lantarki waɗanda za a iya tafiya ta cikinsa, ko an yi shi da ƙarfe mai ƙarfi (EMT), robobi mai wuya (VVC conduit), ko ƙarfe mai sassauƙa (FMC). Ƙarfin wutar lantarki wani ma'auni ne da aka saita ta Lambar Lantarki ta Ƙasa kuma ya dace da yawancin lambobin gida waɗanda ke aiki a matsayin mafi girman lambar doka a kowane wuri.
Don taimaka muku sanin yawan wayoyi a cikin 1 2 EMT, ƙasa akwai tebur daga Lambar Lantarki ta ƙasa don taimaka muku kewayawa:
| size | Nau'in bututun mai | 14 AWG | 12 AWG | 10 AWG | 8 AWG |
| EMT | 12 | 9 | 5 | 3 | |
| 1/2 inch | PVC-Sch 40 | 11 | 8 | 5 | 3 |
| PVC-Sch 80 | 9 | 6 | 4 | 2 | |
| FMC | 13 | 9 | 6 | 3 | |
| EMT | 22 | 16 | 10 | 6 | |
| 3/4 inch | PVC-Sch 40 | 21 | 15 | 9 | 5 |
| PVC-Sch 80 | 17 | 12 | 7 | 4 | |
| FMC | 22 | 16 | 10 | 6 | |
| EMT | 35 | 26 | 16 | 9 | |
| 1-inci | PVC-Sch 40 | 34 | 25 | 15 | 9 |
| PVC-Sch 80 | 28 | 20 | 13 | 7 | |
| FMC | 33 | 24 | 15 | 9 |
Wanne ya fi kyau, EMT ko PVC bututu?
Zan iya taimaka muku yanke shawarar da aka sani idan kuna muhawara tsakanin bututun ƙarfe na lantarki da bututun PVC da tashar EMT. PVC da karfe sun fi aluminium EMTs tsada sosai, waɗanda kuma sun fi ƙarfi da ɗorewa.
Anan akwai fa'idodi guda biyar na amfani da aluminum EMT:
- Ko da yake aluminum yana da nauyin 30% kasa da karfe, yana da karfi. Karfe na iya yin karyewa lokacin da aka fallasa shi zuwa ƙananan yanayin zafi, yayin da aluminum ke ƙara ƙarfi.
- Ana iya yanke Aluminum cikin sauƙi, lanƙwasa ko hatimi ba tare da kayan aiki na musamman ba.
- Aluminum garkuwar hasken lantarki na lantarki, yana hana tsangwama a cikin kayan aikin lantarki masu mahimmanci.
- Tare da zafi, aluminum shine kyakkyawan jagorar wutar lantarki. Yana zama lafiya ga taɓawa, komai zafi ko sanyi yana iya zama a waje.
- Wani ingancin aluminum shine juriya na lalata. Aluminum a dabi'a yana kare kansa ta hanyar samar da murfin oxide na bakin ciki lokacin da aka fallasa shi zuwa iskar oxygen. A sakamakon haka, ba ya lalacewa kamar karfe. Don kara kare karfe daga lalata, masana'antun kuma suna anodize shi. (1)
Dubi wasu labaran mu a kasa.
- Menene girman waya don 30 amps 200 ƙafa
- Yadda ake toshe wayoyin lantarki
- Yadda ake gudanar da wayoyi na lantarki a cikin gidan da ba a gama ba
shawarwari
(1) Aluminum - https://www.livescience.com/28865-aluminum.html
(2) bayyanar da iskar oxygen - https://www.sciencedirect.com/topics/
aikin injiniya / iskar oxygen
