Thaum teeb tsa lub hnub ci photovoltaic (PV) qhov system, xaiv txoj cai cable loj yog qhov tseem ceeb rau kev ua haujlwm zoo, kev nyab xeeb, thiab kev ntseeg tau. A 2.5 mm² hnub ci cable yog ib qho kev xaiv rau ntau yam kev siv vim nws qhov sib npaug ntawm cov peev xwm nqa tam sim no, yoog raws, thiab kav ntev. Txawm li cas los xij, seb nws puas haum rau koj qhov kev teeb tsa hnub ci tshwj xeeb yog nyob ntawm ntau yam, xws li lub zog xav tau, cable ntev, thiab ib puag ncig.
Hauv tsab xov xwm no, peb yuav tham txog qhov tsim nyog ntawm 2.5 mm² hnub ci cables, tshawb xyuas kev ua raws li cov qauv zoo li H1Z2Z2-K thiab PV1-F, thiab qhia txog cov kev xav tseem ceeb rau kev siv photovoltaic (PV).
Txheej txheem cej luam ntawm Solar Cables
Dab tsi yog Solar Cable?
Lub hnub ci cable yog hom tshwj xeeb ntawm cov xaim tsim los tswj cov kev xav tau tshwj xeeb ntawm PV systems, suav nrog cov dej ntws siab, raug UV hluav taws xob, thiab huab cua huab cua. Tsis zoo li cov kab hluav taws xob zoo li qub, cov hnub ci hluav taws xob tau zoo rau kev siv sab nraum zoov thiab kev ua haujlwm ntev.
Cov Qauv rau Solar Cables
H1Z2Z2-K:
Cov txheej txheem European tau teev tseg hauv EN 50618.
Tsim los rau PV systems nrog qhov ntsuas hluav taws xob txog li 1.5 kV DC.
Muab kev tiv thaiv zoo heev rau UV rays, ozone, thiab mechanical stress.
PV1-F:
Ib tug laus tab sis dav saws tus qauv rau photovoltaic cables.
Rated txog li 1.0 kV DC, muab kev ruaj khov thiab tsis muaj halogen rwb thaiv tsev.
Ob tus qauv xyuas kom cov hnub ci cables ua tau raws li kev nyab xeeb, kev ua haujlwm zoo, thiab ib puag ncig yuav tsum tau ua.
Cov yam ntxwv ntawm 2.5 mm² Solar Cables
2.5 mm² hnub ci cable muaj thaj tsam ntawm 2.5 mm², uas txiav txim siab nws cov khoom siv hluav taws xob thiab tsim nyog rau kev siv sib txawv. Cov yam ntxwv tseem ceeb muaj xws li:
Tam sim no-Carrying Peev Xwm:
Feem ntau txhawb nqa tam sim no ntawm 20A thiab 30A, nyob ntawm qhov kev teeb tsa.
Kev ntsuas hluav taws xob:
H1Z2Z2-K cables:Txog li 1.5 kV DC.
PV1-F cables:Txog li 1.0 kV DC.
Thermal Resistance:
Ua haujlwm nyob rau hauv qhov dav ntawm qhov kub ntawm -40 degree mus rau +120 degree .
UV thiab huab cua Resistance:
Tsim los rau lub sijhawm ntev sab nraum zoov, ua kom muaj kev ruaj khov nyob rau hauv ib puag ncig hnyav.
Thaum twg koj tuaj yeem siv 2.5 mm² Solar Cable?
1. Nruab nrab-Power Systems
A 2.5 mm² hnub ci cable yog qhov zoo tagnrho rau kev teeb tsa me me rau nruab nrab PV, xws li:
Lub hnub ci vaj huam sib luag tsim hluav taws xob 1 kW txog 3 kW.
Me me off-grid setups, xws li lub hnub ci twj tso kua mis los yog tej thaj chaw deb teeb pom kev zoo systems.
2. Nruab Nrab Cable khiav
Lub 2.5 mm² cable yog tsim rau cable khiav mus txog 20 meters nyob rau hauv ib txwm tej yam kev mob. Kev ncua ntev tuaj yeem ua rau muaj qhov hluav taws xob ntau dua, uas txo cov kev ua haujlwm ntawm lub cev.
3. Txuas Panels rau Inverters lossis Junction Boxes
Rau kev sib txuas hnub ci vaj huam sib luag hauv ib qho array rau lub inverter lossis hlws ris lub thawv, 2.5 mm² cables tuaj yeem ua raws li cov qauv tam sim no tsim los ntawm cov qauv PV modules.
4. Ua raws li Cov Qauv
Xyuas kom meej tias cov cable ua tau raws li H1Z2Z2-K lossis PV1-F cov qauv, raws li cov no muab:
Resistance rau ib puag ncig degradation.
nplaim retardancy thiab halogen-free khoom rau ntxiv kev nyab xeeb.
Yam yuav tsum tau xav txog ua ntej siv 2.5 mm² Solar Cable
1. Qhov System Power Requirements
Lub cable yuav tsum tswj cov tam sim no uas tsim los ntawm koj lub hnub ci vaj huam sib luag. Siv tus qauv:
I=P/V
Qhov twg:
Kuv=Tam sim no (A)
P=Lub zog (W)
V=Voltage (V)
Piv txwv li, 300W hnub ci vaj huam sib luag ua haujlwm ntawm 12V tsim:
I=30012=25AI=\frac{300}{12}=25AI=12300=25A
Ib lub 2.5 mm² cable tuaj yeem tswj tau qhov tam sim no nyob rau hauv feem ntau.
2. Voltage poob
Voltage poob tshwm sim vim muaj kev tiv thaiv nyob rau hauv cable thiab tuaj yeem ua rau lub zog poob. Yuav kom txo qis voltage poob:
Khaws cable khiav kom luv li sai tau.
Xyuas kom qhov poob tsis tshaj 3% ntawm qhov system voltage.
Siv tus qauv:
Vdrop=I × R × L
Qhov twg:
R=Resistance ntawm cable ib 'meter'.
L=Ntev ntawm cable khiav (meters).
3. Kev nthuav dav yav tom ntej
Yog tias koj npaj yuav nthuav koj lub hnub ci rau yav tom ntej, xav txog seb qhov loj ntawm cable loj (xws li 4 mm² lossis 6 mm²) yuav tsim nyog dua.
4. Ib puag ncig tej yam kev mob
Rau kev teeb tsa sab nraum zoov, xyuas kom lub cable muaj:
UV tiv thaiv rau lub hnub raug ntev.
Weatherproof rwb thaiv tsev rau nag, daus, thiab kub hloov pauv.
Sib piv 2.5 mm² Cables nrog Lwm Qhov Loj
1. 1.5 mm² vs 2.5 mm²
1.5mm² Cable:Haum rau cov tshuab hluav taws xob qis thiab luv luv cable khiav.
2.5mm² Cable:Muaj peev xwm ntau dua tam sim no thiab tsim nyog rau kev siv hluav taws xob nruab nrab.
2. 4 mm² thiab loj
Cov kab hluav taws xob loj dua yuav tsum muaj rau cov tshuab hluav taws xob siab lossis kev khiav mus ntev.
Kev siv ntau ntawm 2.5 mm² Solar Cables
Chaw nyob Systems
Rau kev sib txuas cov vaj huam sib luag hauv ib lub tsev me me hnub ci rau ib qho chaw nyob ze inverter lossis lub thawv sib txuas, 2.5 mm² cable muab lub peev xwm txaus thiab kev nyab xeeb.
Off-Grid Solutions
Nyob rau hauv ib leeg ib leeg xws li lub hnub ci-powered cabins los yog me me twj tso kua mis, lub 2.5 mm² cable tshuav nyiaj li cas thiab kev ua tau zoo.
Pab Txuas Txuas
Ib lub 2.5 mm² cable kuj tseem siv tau rau cov khoom siv hluav taws xob, xws li kev sib txuas ntawm roj teeb lossis kev saib xyuas, muab qhov tam sim no tseem nyob hauv qhov txwv tsis pub muaj kev nyab xeeb.