Nyob rau hauv kev loj hlob ntawm lub zog tauj dua tshiab, lub hnub ci zog sawv tawm los ua tus neeg tseem ceeb hauv kev ua tiav cov kev daws teeb meem hluav taws xob ruaj khov. Lub hauv paus rau txhua lub hnub ci zog yog cov hnub ci hluav taws xob thiab cov xov hluav taws xob hnub ci uas xa cov hluav taws xob hluav taws xob uas tsim los ntawm cov hnub ci vaj huam sib luag rau ntau yam kab ke, xws li inverters, roj teeb, thiab hluav taws xob daim phiaj. Cov cables no ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb, ua haujlwm zoo, thiab txhim khu kev qha ntawm tag nrho lub hnub ci.
Ib qho lus nug uas tshwm sim thaum lub hnub ci tsim thiab kev teeb tsa yog hais txog lub peev xwm thauj khoom ntawm cov xaim - tshwj xeeb, lub peev xwm ntawm 4 hli hnub ci xaim yog dab tsi?
Hauv tsab xov xwm no, peb yuav teb cov lus nug no thiab tshawb txog cov yam ntxwv uas txiav txim siab lub peev xwm ntawm lub hnub ci hluav taws xob thiab cov xov hluav taws xob hnub ci, yuav ua li cas xam nws, thiab dab tsi cuam tshuam rau kev xaiv ntawm cable loj hauv daim ntawv thov hnub ci.
Dab tsi yog Solar Cable thiab Solar Wire?
Ua ntej delving rau hauv cov ntsiab lus ntawm 4 hli hnub ci xaim thiab nws lub peev xwm thauj khoom, cia ua ntej txhais cov hnub ci cables thiab hnub ci xov hlau.
Hnub ci Cable: Lub hnub ci cable yog ib hom hluav taws xob xaim tshwj xeeb tsim los siv rau hauv lub hnub ci hluav taws xob. Cov kab hluav taws xob no tau tsim los tswj cov kev xav tau tshwj xeeb ntawm lub hnub ci zog, xws li raug UV hluav taws xob, huab cua kub, thiab noo noo. Cov kab hluav taws xob hnub ci feem ntau yog ua los ntawm tooj liab lossis aluminium conductors thiab insulated nrog cov ntaub ntawv ruaj khov xws li cross-linked polyethylene (XLPE) lossis ethylene tetrafluoroethylene (ETFE). Lawv tau tsim los nqa cov hluav taws xob tam sim no los ntawm cov hnub ci vaj huam sib luag mus rau lwm qhov ntawm lub cev, xws li inverters, cov tswj hwm, lossis cov roj teeb cia.
Hnub Ci Hlau: Hnub ci xaim yog hais txog tus neeg xyuas hauv lub hnub ci cable uas yog lub luag haujlwm nqa hluav taws xob tam sim no. Cov xov hlau no yog tsim los ntawm tooj liab lossis txhuas thiab feem ntau yog xim xim (liab rau qhov zoo thiab dub rau qhov tsis zoo) los qhia polarity. Qhov loj ntawm cov xaim - ntsuas hauv square millimeters (mm²) - txiav txim siab tus nqi tam sim no nws tuaj yeem nqa tau yam xyuam xim.
Lub luag haujlwm ntawm Solar Cable Loj
Qhov loj ntawm lub hnub ci cable lossis hnub ci xaim yog ib qho tseem ceeb tshaj plaws hauv kev txiav txim siab txog kev nyab xeeb, kev ua tau zoo, thiab kev ua haujlwm ntawm lub hnub ci zog. Kev ua kom zoo ntawm cov kab hluav taws xob kom ntseeg tau tias lub kaw lus tuaj yeem tswj cov khoom hluav taws xob tsis muaj kev pheej hmoo ntawm overheating lossis tsis ua haujlwm.
Lub peev xwm thauj khoom ntawm lub cable yog hais txog tus nqi hluav taws xob tam sim no ( ntsuas hauv amps) uas lub cable tuaj yeem nqa tau zoo. Yog hais tias ib tug cable yog undersized rau tus nqi ntawm cov tam sim no ntws los ntawm nws, lub cable yuav overheat, uas yuav ua rau rwb thaiv tsev puas, hluav taws kub, los yog puas rau cov hluav taws xob Cheebtsam ntawm lub system.
Thaum xaiv ib lub hnub ci cable loj, koj yuav tsum tau ua ntau yam rau hauv tus account:
Ampacity: Qhov no yog qhov siab tshaj plaws tam sim no ib lub cable tuaj yeem nqa tau yam tsis muaj cua sov. Nws nyob ntawm cov khoom siv hlau, hom rwb thaiv tsev, ambient kub, thiab qhov ntsuas hluav taws xob.
Voltage poob: Lub cable khiav ntev dua, qhov ntau dua qhov voltage poob, uas tuaj yeem txo qhov kev ua haujlwm ntawm lub cev. Cov cables loj dua txo qhov voltage poob.
Kev nyab xeeb: Lub cable yuav tsum raug xaiv kom tsis txhob muaj overloading, uas tuaj yeem ua rau muaj kev phom sij xws li hluav taws xob hluav taws xob.
Load Capacity ntawm 4mm Hnub Ci Hlau
Txhawm rau txiav txim siab lub peev xwm ntawm 4 hli hnub ci xaim, peb yuav tsum xav txog hom khoom siv hluav taws xob, rwb thaiv tsev, qhov kub thiab txias, thiab qhov system qhov hluav taws xob. Cia peb rhuav cov xwm txheej no ib los ntawm ib qho.
1. Conductor Material: Copper vs. Aluminium
Cov khoom siv hluav taws xob ntau tshaj plaws siv nyob rau hauv hnub ci xaim yog tooj liab thiab txhuas, ob qho tib si muaj hluav taws xob sib txawv.
Tooj: Copper muaj cov conductivity zoo heev, txhais tau tias nws muaj peev xwm nqa tau ntau tshaj li txhuas ntawm tib qhov loj. Copper solar wire yog cov khoom siv ntau tshaj plaws hauv kev teeb tsa hnub ci, tshwj xeeb tshaj yog nyob rau hauv vaj tse thiab kev lag luam me. Rau 4 hli tooj liab hnub ci xaim, lub ampacity muaj peev xwm nyob ntawm 25 mus rau 35 amps nyob ntawm qhov rwb thaiv tsev thiab kev teeb tsa.
Aluminium: Aluminium tsis tshua muaj hluav taws xob ntau dua tooj liab, yog li ib qho txhuas cable yuav tsum muaj txoj kab uas hla loj dua kom nqa tau tib yam tam sim no. Rau 4 hli txhuas hlau, qhov ampacity feem ntau yog nyob ib ncig ntawm 20 mus rau 30 amps, nyob ntawm seb cov khoom siv rwb thaiv tsev thiab qhov kub thiab txias. Aluminium yog tus nqi ntau dua li tooj liab thiab tuaj yeem siv rau hauv kev teeb tsa loj dua qhov kev txuag nqi tseem ceeb.
Feem ntau, tooj liab feem ntau yog siv rau 4 hli hnub ci xaim, vim nws muab kev ua tau zoo dua thiab ua haujlwm zoo.
2. Cov khoom siv rwb thaiv tsev thiab ntsuas kub
Lub rwb thaiv tsev nyob ib ncig ntawm cov xaim yog qhov tseem ceeb rau kev txiav txim siab ntawm cov hlau ampacity. Rwb thaiv tsev cov ntaub ntawv xws li cross-linked polyethylene (XLPE), ethylene tetrafluoroethylene (ETFE), thiab polyvinyl chloride (PVC) muab ntau theem ntawm kev tiv thaiv tshav kub, UV hluav taws xob, thiab cov khoom siv kho mob.
XLPE rwb thaiv tsev: Hom rwb thaiv tsev no muaj cov cua kub tsis kam thiab feem ntau siv rau cov hnub ci cables vim tias nws tuaj yeem tiv taus qhov kub thiab txias, feem ntau mus txog 90 degree lossis ntau dua. Nrog XLPE rwb thaiv tsev, 4mm tooj liab hnub ci xaim tuaj yeem nqa tau kwv yees li 35 amps nyob rau hauv ib txwm muaj.
ETFE rwb thaiv tsev: ETFE muab kev tiv thaiv zoo tiv thaiv UV hluav taws xob thiab yog qhov zoo tagnrho rau kev siv sab nraum zoov hauv lub hnub ci. Nrog ETFE rwb thaiv tsev, 4mm tooj liab hnub ci xaim tuaj yeem ua qhov zoo sib xws lossis siab dua me ntsis ntawm 35 amps.
Lub ambient kub kuj ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab lub peev xwm thauj khoom. Cables yuav muaj qis ampacity nyob rau hauv siab dua. Piv txwv li, nyob rau hauv ib puag ncig qhov kub tsis tu ncua tshaj 40 degree, lub ampacity ntawm 4 hli hnub ci xaim yuav raug txo. Nyob rau hauv xws li mob, tej zaum koj yuav tau siv ib tug loj cable los them rau qhov poob nyob rau hauv lub peev xwm vim cua sov.
3. Kev ntsuas hluav taws xob ntawm qhov system
Qhov ntsuas qhov ntsuas hluav taws xob ntawm lub hnub ci txiav txim siab tus nqi tam sim no xav tau los xa tib lub zog. Feem ntau, hnub ci tshuab ua haujlwm ntawm qhov hluav taws xob tsawg (piv txwv li, 12V, 24V) lossis siab voltage (xws li, 600V, 1000V rau cov tshuab loj). Qhov siab dua qhov system voltage, qhov me me tam sim no xav tau los xa cov tib lub zog.
Rau 12V lossis 24V hnub ci system, 4 hli hnub ci xaim yuav tsum tau nqa tam sim no ntau dua piv rau 600V qhov system, qhov tam sim no xav tau yuav qis dua rau tib lub zog tso tawm.
Rau 12V qhov system, qhov ampacity ntawm 4 hli tooj liab xaim tuaj yeem nyob ze rau 25-30 amps, thaum rau 48V lossis 600V qhov system, qhov ampacity tuaj yeem mus txog 35 amps rau tib lub xaim loj, nyob ntawm qhov rwb thaiv tsev thiab ambient kub.
4. Cable Length thiab Voltage poob
Lwm qhov tseem ceeb uas cuam tshuam lub peev xwm ntawm 4 hli hnub ci xaim yog qhov ntev ntawm lub cable. Qhov ntev ntawm lub cable khiav, qhov ntau dua qhov voltage poob, uas txo cov nqi hluav taws xob xa mus rau qhov system. Voltage poob yog proportional rau qhov tsis kam ntawm cov xaim, thiab cov cables loj dua nrog thaj tsam ntau dua qhov kev sib tw muaj kev tiv thaiv tsawg dua thiab yog li txo qis voltage.
Rau cov kab hluav taws xob luv luv (tsawg dua 10 meters), 4 hli tooj liab hnub ci xaim yuav tsum txaus rau nqa 25 mus rau 35 amps. Txawm li cas los xij, kom ntev cable khiav, koj yuav tau siv cov xov hlau tuab (xws li, 6mm² lossis 10mm²) kom txo qis voltage thiab txhim kho kev ua haujlwm.
Yuav ua li cas xam qhov Load Capacity ntawm 4mm Solar Wire
Txhawm rau xam cov peev txheej ntawm 4 hli hnub ci xaim, koj yuav tsum xav txog cov kauj ruam hauv qab no:
Txiav txim qhov tam sim no: Thawj kauj ruam yog xam cov nqi tam sim no uas yuav ntws los ntawm cov xaim. Qhov no nyob ntawm qhov system qhov hluav taws xob thiab lub zog tso zis. Piv txwv li, rau 12V system, yog tias koj lub hnub ci vaj huam sib luag tau tsim 500W ntawm lub zog, qhov xav tau tam sim no yog:
I=PV=500W12V=41.67AI=\frac{P}{V}=\frac{500W}{12V} {{9} }.67AI=VP=12V500W=41.67A
Xaiv cov khoom siv hlau zoo: Xaiv seb koj yuav siv tooj liab lossis txhuas rau cov hlau. Copper wires muaj lub zog ntau dua, yog li rau tib lub sijhawm tam sim no, 4mm tooj liab hlau yuav txaus los nqa tam sim no ntau dua li cov hlau txhuas.
Tus account rau Cable Length thiab Voltage poob: Yog hais tias lub cable khiav ntev, tej zaum koj yuav tau ua kom cov hlau loj kom txo tau qhov voltage poob thiab tswj qhov system efficiency.
Txheeb xyuas hom rwb thaiv tsev thiab ntsuas kub: Xyuas kom meej tias cov khoom siv rwb thaiv tsev thiab qhov ntsuas kub ntawm cov hlau haum rau koj qhov kev teeb tsa. Piv txwv li, yog tias lub kaw lus ua haujlwm nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias (piv txwv li, 40 degree), lub ampacity ntawm cov hlau yuav txo qis, thiab cov xaim loj yuav xav tau.