Lub peev xwm ntawm 4mm² hnub ci cable los tswj hluav taws xob hluav taws xob yog cov lus nug ntau thaum tsim cov tshuab hluav taws xob hnub ci. Kev nkag siab zoo ua kom lub cev ua haujlwm tau zoo, tiv thaiv kom tsis txhob muaj cua sov, thiab zam kev nyab xeeb. Hauv tsab xov xwm no, peb yuav tshawb xyuas cov xwm txheej txiav txim siab lub zog ntawm 4mm² hnub ci cable (tseem hu ua lub hnub ci xaim) tuaj yeem ua tau, yuav ua li cas los laij nws lub peev xwm, thiab qhov tseem ceeb ntawm txoj kev xaiv cable hauv lub hnub ci.
Dab tsi yog Solar Cable?
Lub hnub ci cable lossis hnub ci xaim yog ib qho hluav taws xob tshwj xeeb uas tsim los siv rau hauv cov tshuab photovoltaic (PV). Nws txuas cov hnub ci vaj huam sib luag rau inverters, roj teeb, thiab lwm yam khoom, xa hluav taws xob tsim los ntawm lub hnub ci array.
Cov yam ntxwv tseem ceeb ntawm solar cables muaj xws li:
UV tsis kam:Tsim los rau ntev sab nraum zoov raug tshav ntuj.
High voltage kam rau ua:Muaj peev xwm tuav txog 1500V DC hauv cov tshuab niaj hnub.
Durability:Resistant mus rau qhov kub thiab txias, dej, thiab mechanical stress.
Cov qauv siv rau cov hnub ci hluav taws xob muaj xws li H1Z2Z2-K thiab PV1-F, ob qho tib si ua kom muaj kev nyab xeeb thiab kev ua haujlwm hauv PV kev teeb tsa.
Tam sim no-Nqa Peev Xwm ntawm 4mm² Hnub Ci Cables
Lub peev xwm nqa tam sim no ntawm lub hnub ci cable yog qhov tseem ceeb uas txiav txim siab seb lub zog hluav taws xob nws tuaj yeem ua li cas. Lub ampacity (qhov siab tshaj plaws tam sim no lub cable tuaj yeem nqa tau nyab xeeb) nyob ntawm:
Khoom siv:Feem ntau, hnub ci cables siv tinned tooj liab, uas muaj cov conductivity zoo heev thiab tsis kam mus corrosion.
Installation tej yam kev mob:Cables ntsia rau hauv qhov qhib cua dissipate cua sov zoo dua li cov faus los yog bundled.
Ambient kub:Qhov kub siab dua txo cov kab hluav taws xob ampacity.
Voltage poob:Nyob rau lub sijhawm ntev, qhov tsis muaj hluav taws xob tuaj yeem cuam tshuam kev ua haujlwm, xav tau cov cables tuab.
Rau tus qauv 4mm² hnub ci cable, tus nqi ampacity yog:
H1Z2Z2-K:Txog li 55A (ambient kub ntawm 30 degree, qhib-air installation).
PV1-F:Txog li 44A (zoo tib yam).
Xam fais fab (kW) a 4mm² Cable Can Handle
Lub zog muaj peev xwm tuaj yeem suav nrog cov qauv:
Lub zog (kW) =V (V) × Tam sim no (A) ÷ 1000
Piv txwv li:
4mm² hnub ci cable nrog ampacity ntawm 55A thiab kev ua haujlwm ntawm 1000V DC tuaj yeem ua haujlwm:
1000V × 55 A÷{2}} kW
Yog tias tib lub cable ua haujlwm ntawm 500V DC:
500V × 55 A÷{2}}.5 kW
Yog li, lub zog muaj peev xwm sib txawv ncaj qha nrog qhov system voltage.
Cov yam ntxwv cuam tshuam rau kev xaiv Cable
Qhov System Voltage thiab Tam sim no:
Kev khiav hauj lwm voltage thiab tam sim no txiav txim siab qhov xav tau ntawm cable. Rau cov tshuab hluav taws xob tam sim no, cov cheeb tsam loj dua tuaj yeem tsim nyog kom tsis txhob muaj cua sov ntau dhau.
Distance thiab Voltage poob:
Voltage poob yog ib qho kev sib tw hauv PV systems, tshwj xeeb tshaj yog nyob deb. Yuav kom txo qis zog poob, xyuas kom meej tias qhov hluav taws xob poob qis dua 3%. Rau kev siv cable ntev dua, xav txog qhov loj ntawm cable los yog siv cov tshuab hluav taws xob ntau dua.
Ib puag ncig tej yam kev mob:
Thaum tshav kub kub, UV raug, los yog noo noo tuaj yeem degrade cables. Xaiv cov kab hluav taws xob hnub ci uas ua tau raws li cov qauv xws li H1Z2Z2-K rau kev ua tau zoo dua hauv qhov chaw hnyav.
Cov qauv kev nyab xeeb:
Ua raws li cov qauv zoo li IEC 62930 ua kom cov kab hluav taws xob tiv taus hluav taws, tsis muaj pa taws, thiab tsis muaj halogen, txhim kho kev nyab xeeb.
Kev sib piv ntawm hnub ci thiab cov hluav taws xob tsis tu ncua
Cov kab hluav taws xob hnub ci tau tsim tshwj xeeb rau PV systems, muab qhov zoo dua li cov hluav taws xob tsis tu ncua:
| Feature | Hnub ci Cable | Tsis Siv Neeg Hluav Taws Xob Cable |
|---|---|---|
| UV Resistance | Yog lawm | Tsis muaj |
| Voltage Ntau | Txog li 1500V DC | Feem ntau 220V-600V AC |
| Kub Resistance | Dav dav (-40 degree rau +120 degree ) | Txwv (-10 degree rau +70 degree ) |
| Cov qauv | H1Z2Z2-K, PV1-F | Cov qauv hluav taws xob dav dav (xws li IEC 60227) |
Kev siv cov kab hluav taws xob tsis tu ncua rau kev teeb tsa hnub ci tuaj yeem ua rau txo qis kev ua haujlwm, degradation sai dua, thiab muaj kev nyab xeeb.
Tswv yim Siv Case rau 4mm² Solar Cables
Chaw nyob Systems:
Rau 5kW qhov system ua haujlwm ntawm 1000V DC, tam sim no nyob ib puag ncig 5A. Ib tug 4mm² cable yog ntau tshaj li txaus los tuav no load.
Commercial Installations:
Hauv 50kW qhov system, ntau qhov sib npaug sib npaug tuaj yeem siv 4mm² cables los txuas cov hlua ib leeg rau lub inverter.
Off-Grid Applications:
Rau cov kab hluav taws xob off-grid nrog qis voltage (xws li, 48V DC), xyuas kom cov tam sim no tsis pub dhau lub cable ampacity.
Cov txiaj ntsig ntawm Kev Siv Cov Hluav Taws Xob Hluav Taws Xob kom raug
Txhim kho Efficiency:
Txo qhov tsis kam thiab qhov hluav taws xob poob kom ntseeg tau tias lub zog ntau dua mus txog qhov chaw thau khoom lossis roj teeb cia.
Txhim khu kev ruaj ntseg:
Kev loj hlob zoo tiv thaiv overheating, txo kev pheej hmoo ntawm hluav taws thiab ua rau lub neej ntev.
Txoj Cai Ua Raws Cai:
Cov qauv kev sib ntsib xws li H1Z2Z2-K ua kom ua raws li cov cai hluav taws xob hauv zos thiab cov cai.
Feem ntau yuam kev hauv kev xaiv hnub ci Cable
Undersized Cables:
Kev siv lub cable nrog lub peev xwm tsis txaus tuaj yeem ua rau overheating thiab txo efficiency.
Ignoring Voltage poob:
Nyob rau qhov ntev, cov kab me me tuaj yeem ua rau lub zog loj.
Siv cov tsis-Solar Cables:
Cov kab hluav taws xob tsis tu ncua tsis muaj qhov ua tau ntev thiab kev nyab xeeb yam xav tau rau PV systems.