Nyob rau hauv lub hnub ci photovoltaic (PV) systems, kev xaiv ntawm cable loj yog qhov tseem ceeb rau kev ua tau zoo thiab kev nyab xeeb. Lub 4mm² hnub ci cable yog ib qho kev xaiv nrov rau nruab nrab mus rau qhov loj-teev kev teeb tsa vim nws muaj peev xwm tswj tau cov hluav taws xob ntau dua thiab tswj cov hluav taws xob tsawg tsawg tshaj qhov ntev. Kab lus no tshawb txog lub peev xwm nqa tam sim no ntawm 4mm² hnub ci kab hluav taws xob thiab nws qhov tsim nyog hauv PV systems, tsom rau H1Z2Z2-K, PV1-F, thiab cov qauv kev siv hluav taws xob photovoltaic.
Cov yam ntxwv tseem ceeb ntawm 4mm² Solar Cable
Hla-Sectional Area
Ib qho 4mm² cable muaj tus neeg xyuas pib hla thaj tsam ntawm 4 square millimeters, muab qhov chaw loj dua rau cov dej ntws tam sim no thiab txo qhov tsis kam piv rau cov cables me.
Standards thiab Certifications
H1Z2Z2-K:
Rated mus txog 1.5 kV DC.
Tsim los rau niaj hnub hnub ci PV systems nrog txhim khu kev ruaj ntseg nta xws li nplaim taws retardance, halogen-dawb rwb thaiv tsev, thiab siab yooj.
PV1-F:
Rated mus txog 1.0 kV DC.
Feem ntau hauv cov tshuab qub thiab siv dav hauv cov qauv PV installation.
Environmental Durability
Ob leeg H1Z2Z2-K thiab PV1-F cables yog tsim los siv sab nraum zoov, muab:
UV thiab huab cua Resistance:Ua kom muaj kev ua haujlwm ntev ntev hauv qhov chaw hnyav.
Qhov kub thiab txias:Ua haujlwm tau zoo ntawm -40 degree thiab +120 degree, haum rau huab cua huab cua.
Tam sim no-Carrying Peev Xwm ntawm 4mm² Hnub Ci Cable
Lub peev xwm nqa tam sim no ntawm 4mm² hnub ci cable yog nyob ntawm yam xws li kev teeb tsa, qhov kub thiab txias, thiab cov khoom siv hluav taws xob cable.
Cov Lus Qhia dav dav
Hauv Huab Cua Dawb:
Ib qho 4mm² cable feem ntau tuaj yeem nqa tam sim no ntawm 30A txog 40A nyob rau hauv qhov kev pom zoo.
Hauv Conduits lossis Underground:
Txo cov cua kub dissipation txwv lub peev xwm tam sim no rau ib ncig ntawm 25A txog 35A.
Influence ntawm Kub
Kev kub siab ambient kub txo cov cable lub peev xwm nqa tam sim no vim muaj zog tiv thaiv thiab thermal buildup. Piv txwv li:
Ntawm 30 degree, lub peev xwm yuav yog 35A.
Ntawm 50 degree, nws tuaj yeem poob mus txog 30A.
Kev txiav txim siab Voltage Drop
Voltage poob tshwm sim nyob rau hauv qhov ntev thiab yog proportional rau tam sim no, cable ntev, thiab kuj. Ib qho hluav taws xob qis qis ua kom muaj kev ua haujlwm siab dua, tshwj xeeb tshaj yog nyob rau hauv kev teeb tsa hnub ci loj.
Daim ntawv thov ntawm 4mm² Solar Cable
4mm² hnub ci cable yog ntau yam thiab siv dav hauv hnub ci PV tshuab rau ntau yam kev siv:
1. Nruab nrab mus rau Loj Solar Systems
Haum rau cov tsev nyob thiab kev lag luam nrog nruab nrab mus rau siab zog tso zis.
Feem ntau siv los txuas cov hnub ci vaj huam sib luag rau inverters lossis cov thawv sib txuas.
2. Ntev Cable khiav
Qhov zoo tshaj plaws rau kev teeb tsa uas qhov kev ncua deb ntawm cov khoom (xws li, panels thiab inverters) tshaj10 meters, raws li qhov loj me me minimizes voltage poob.
3. High-Tam sim no Systems
Nrog lub peev xwm txog li 40A, 4mm² cable tuaj yeem tswj cov khoom siv hluav taws xob tam sim no los ntawm ntau lub hnub ci vaj huam sib luag hauv cov kab lossis cov teeb tsa sib npaug.
Xam cov peev xwm tam sim no hauv PV Systems
Txhawm rau txiav txim siab qhov siab tshaj plaws tam sim no 4mm² cable tuaj yeem ua haujlwm hauv ib daim ntawv thov tshwj xeeb, siv cov qauv:
I=P/V
Qhov twg:
Kuv=Tam sim no (A)
P=Lub zog (W)
V=Voltage (V)
Piv txwv xam
Rau lub kaw lus nrog lub zog tso zis ntawm 3 kW thiab qhov hluav taws xob ntawm 48V:
I=3000/48=62.5
Txij li qhov no tshaj qhov muaj peev xwm ntawm 4mm² cable, koj yuav xav tau cov kab loj loj, xws li 6mm² lossis 10mm².
Muab piv 4mm² nrog rau lwm yam Solar Cable Size
| Cable Loj | Tam sim no muaj peev xwm (A) | Qhov Voltage (kV) | Cov ntawv thov zoo tshaj plaws |
|---|---|---|---|
| 1.5 mm² os | 12–15A | Mus txog 1.5 kV | Kev teeb tsa me me, luv cable khiav |
| 2.5 mm² os | 20–30A | Mus txog 1.5 kV | Nyob hauv PV systems, nruab nrab nyob deb |
| 4mm 2 ua | 30–40A | Mus txog 1.5 kV | Nruab nrab mus rau loj systems, ntev cable khiav |
| 6mm 2 ua | 40–55A | Mus txog 1.5 kV | Kev lag luam thiab kev lag luam installation |
Cov ntsiab lus tseem ceeb rau kev siv 4mm² Solar Cables
1. Qhov System Voltage thiab Tam sim no
Xyuas kom lub cable lub peev xwm tam sim no phim cov txheej txheem cov cai. Rau cov ntawv thov tam sim no, ib lub cable loj dua yuav tsim nyog.
2. Voltage Drop Limits
Khaws qhov hluav taws xob poob hauv 3% rau kev ua haujlwm zoo. Xam qhov poob siv:
Vdrop=I × R × L
R=Resistance ib 'meter' (Ω/m).
L=Tag nrho cov kab ntev (meters).
3. Ua raws li Cov Qauv
Xyuas kom tseeb tias cov cable ua tau raws li H1Z2Z2-K lossis PV1-F cov qauv, ua kom muaj kev ruaj ntseg thiab kev nyab xeeb hauv cov xwm txheej hnyav.
4. Ib puag ncig tej yam kev mob
Xav txog qhov kub thiab txias, UV raug, thiab ib puag ncig kev teeb tsa. Lub 4mm² cable tsim los rau cov qauv no ua tau zoo hauv kev teeb tsa sab nraum zoov.
5. Yav tom ntej Scalability
Yog tias lub kaw lus yuav nthuav dav, xav txog kev siv cov kab loj loj kom haum rau cov khoom siv hluav taws xob ntau ntxiv.
Qhov zoo ntawm Kev Siv 4mm² Solar Cable
Siab dua tam sim no:
Kov mus txog 40A, ua rau nws haum rau nruab nrab mus rau loj installation.
Txo Voltage poob:
Cov cheeb tsam loj dua tuaj yeem txo qhov kev poob qis hauv qhov ntev.
Durability:
Cov qauv zoo li H1Z2Z2-K thiab PV1-F ua kom muaj kev ua haujlwm ntev thiab ua haujlwm rau ib puag ncig yam.
Kev txwv ntawm 4mm² Solar Cable
Tus nqi:
Ntau tshaj li cov cables me me xws li 2.5mm².
Installation nyuaj:
Kev hloov pauv me ntsis, yuav tsum tau siv zog ntau dua rau txoj hauv kev nruj.
Tsis haum rau High Currents:
Rau cov ntawv thov uas xav tau tam sim no siab dua 40A, cov cables loj dua yog qhov tsim nyog.