Yuav ua li cas qhia yog hais tias ib tug hlau yog 12 gauge los yog 14 gauge (daim duab qhia)
Txheem
Kev txiav txim siab qhov ntsuas ntawm cov xaim (thickness) yog qhov tsim nyog thaum yuav cov khoom siv los yog cov hlaws dai, nrog rau cov khoom siv hlau xws li dhia rings, taub hau pins, qhwv ntsej hooks thiab lwm yam khoom siv. Thaum sib piv cov ntsuas, qhov nyias nyias ntawm cov hlau, qhov ntsuas tus lej me dua. Nrog rau qhov no hauv siab, xaiv txoj cai ntsuas kab hluav taws xob yog qhov tseem ceeb. Thaum muab piv 12 gauge hlau rau 14 gauge hlau, 12 gauge hlau yog superior.
Hlau yog feem ntau sau npe raws li 12 gauge lossis 14 gauge. Kab lus no yuav qhia koj yuav ua li cas qhia seb lub xov tooj yog 12 gauge lossis 14 gauge hauv kev nthuav dav ntxiv.
Yuav ua li cas qhia yog hais tias ib tug hlau yog 12 gauge los yog 14 gauge
Tshwj tsis yog tias tau sau tseg, ntsuas rau peb cov khoom siv suav nrog Standard Wire Gauge (SWG) (tseem hu ua British lossis Imperial Wire Gauge).
Qee cov tuam txhab lag luam kos lawv cov khoom siv American Wire Gauge AWG (tseem hu ua Brown & Sharpe Wire Gauge), uas yuav raug teev nyob rau hauv cov khoom piav qhia lossis AWG hlau loj daim ntawv.
Nrog cov ntsuas tuab, qhov sib txawv ntawm SWG thiab AWG yog qhov pom tau zoo tshaj plaws (16 thiab tuab dua).
Vim tias qhov kev npaj txhij txog ntawm tus nqi tooj liab nce ntxiv, cov neeg tsim khoom qee zaum siv txhuas ceg hlau tsis yog tooj liab ceg hlau hauv tsev hluav taws xob: tooj liab thiab txhuas ceg hlau, txhua cov hlau sib txawv.
Hlau thickness 12 gauge
Hais txog qhov loj me, 12 gauge hlau feem ntau yog 0.0808 nti lossis 2.05 hli tuab. Hlau gauge hais txog lub thickness ntawm cov hlau. Qhov siab dua qhov tsis kam, qhov nqaim ntawm qhov hla ntawm cov hlau. Raws li qhov kev tawm tsam nce, qhov tam sim no txo qis thiab cov zis hluav taws xob thoob plaws cov hlau nce.
Nyob rau hauv hluav taws xob conduction, hlau ions tsoo nrog txav electrons. Lawv siv hauv chav ua noj, chav ntxhua khaub ncaws, thiab cov qhov hluav taws xob hauv kev, nrog rau 120-volt cua txias tshuab uas tuaj yeem kos txog li 20 amps ntawm hluav taws xob xaim.
Raws li txoj cai dav dav, qhov thinner cov hlau, ntau cov xov hlau koj tuaj yeem txuas ua ke. 12 ntsuas hluav taws xob xaim raug pom zoo rau kev txhim kho lub zog xa hluav taws xob thaum xav tau lub zog hluav taws xob siab.
Hlau thickness 14 gauge
Txoj kab uas hla ntawm 14 gauge hlau yog kwv yees li sib npaug ntawm lub thickness ntawm daim ntawv clip. 14 gauge hlau yog 1.63mm nyob rau hauv txoj kab uas hla thiab yog zoo tagnrho rau 15 amp Circuit Court breaker.
Tau ze li ib puas xyoo, peb tau siv American Wire Gauge AWG txoj kev ntsuas hlau thickness.
Txoj hauv kev no faib cov xov hlau raws li txoj kab uas hla hauv AWG hlau loj daim ntawv qhia, tsis yog qhov tuab. Cov xov hlau no muaj qhov ntsuas siab tshaj plaws tam sim no rau cov hluav taws xob hluav taws xob uas lawv tuaj yeem nqa yam tsis muaj cua sov lossis melting.
Qhov (sockets) uas tuaj yeem muab tso rau ntawm 12 gauge hlau
Muaj kev txwv tsis pub dhau ntawm tus naj npawb ntawm qhov chaw tawm. Txawm li cas los xij, qhov tsim nyog thiab tso cai tus naj npawb ntawm cov qhov hluav taws xob uas tuaj yeem txuas nrog 12 ntsuas hluav taws xob nrog 20 ntsuas hluav taws xob hluav taws xob yog 10.
Circuit Court breakers nyob rau hauv koj lub tsev lub thaiv vaj huam sib luag muaj nuj nqi raws li kev ruaj ntseg khoom. Thaum qhov tam sim no nyob rau hauv Circuit Court tshaj qhov ntsuas, txhua lub cuab yeej yuav tua lub hwj chim.
Qhov (sockets) uas tuaj yeem muab tso rau ntawm 14 gauge hlau
Tsuas yog yim lub qhov hluav taws xob ntawm 14 gauge cable raug tso cai. Tsuas yog txuas 14 gauge hlau mus rau 15 amp Circuit Court breaker. Ib qho 15 gauge hlau amplifier Circuit Court tuaj yeem muaj qhov txwv tsis pub muaj qhov hluav taws xob.
Koj yuav overload lub Circuit Court breaker yog tias koj siv cov khoom siv uas kos hluav taws xob ntau tshaj li qhov Circuit Court breaker tuaj yeem ua tau.
Siv 12 gauge hlau
Koj tsis tuaj yeem siv cov cuab yeej tshwj xeeb nrog 12 gauge hlau. Ntawm qhov tod tes, 12-gauge hlau yog tsim rau cov khoom siv hauv chav ua noj, chav dej, chav dej sab nraum zoov, thiab 120-volt cua txias uas txhawb 20 amps.
Thaum txuas rau qhov siab, koj tuaj yeem khiav 12-gauge mus rau 70-foot cable ntawm 15-amp Circuit Court breaker. Txawm li cas los xij, ntawm 20 amp Circuit Court breaker, lub ncov yog txo mus rau 50 ko taw. Txij li thaum lub ntsuas hluav taws xob yog qhov tuab ntawm tus neeg xyuas pib los ntawm cov khoom siv hluav taws xob, tus neeg xyuas pib yuav tsum tuaj yeem txo qhov tsis kam thaum tswj kev sib kis tau zoo. (1)
Siv 14 gauge hlau
Rau cov khoom siv, cov khoom siv, thiab cov teeb pom kev zoo txuas nrog 15 amp Circuit Court breaker, 14 gauge tooj liab xaim tuaj yeem siv tau. Nco ntsoov, raws li tau hais ua ntej hauv cov ntawv nyeem, koj kuj yuav tsum txiav txim siab seb muaj pes tsawg qhov hluav taws xob txuas mus. Qhov yooj yim ntawm 14 gauge hlau ua rau nws nyuaj rau tuav cov khoom loj rau lub sijhawm ntev.
Tsis tas li ntawd, ib tug raug 14 gauge tooj liab hlau yog 1.63mm nyob rau hauv txoj kab uas hla, uas ua rau muaj zog resistive cua sov thiab overheating thaum khiav ntawm siab dua tam sim no. (2)
Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.
- Ntev npaum li cas yog 18 gauge hlau
- Qhov twg mus nrhiav tuab tooj liab hlau rau seem
- Yog tooj liab yog cov khoom ntshiab
tswv yim pom zoo
(1) electron flow - https://www.sciencedirect.com/topics/engineering/
electron ntws
(2) resistive heat - https://www.energy.gov/energysaver/electric-resistance-heating
