Hauv kev tsim thiab kev teeb tsa lub hnub ci hluav taws xob, lub hnub ci cables thiab cov xov hluav taws xob hnub ci ua lub luag haujlwm tseem ceeb hauv kev xa hluav taws xob los ntawm hnub ci vaj huam sib luag mus rau lub inverter, roj teeb cia, thiab thaum kawg mus rau tsev neeg lossis kab sib chaws. Ib qho ntawm cov khoom tseem ceeb ntawm txhua lub hnub ci hluav taws xob yog xaiv txoj cai hnub ci hluav taws xob uas tuaj yeem ua kom muaj kev nyab xeeb ntawm cov khoom siv hluav taws xob uas xav tau, tsis tas yuav ua rau muaj hluav taws xob ntau dhau lossis kub dhau.
Ib lo lus nug uas tshwm sim thaum tsim lub hnub ci kev teeb tsa yog: Ntau npaum li cas kilowatt (kW) tuaj yeem ua 6 hli hnub ci cable? Qhov no yog ib qho tseem ceeb rau kev txiav txim siab vim tias xaiv qhov loj me me kom muaj kev nyab xeeb ntawm lub cev, kev ntseeg siab, thiab kev ua haujlwm zoo. Nyob rau hauv tsab xov xwm no, peb yuav delve rau hauv qhov tshwj xeeb ntawm lub hnub ci cables, yuav ua li cas los txiav txim siab lub peev xwm ntawm 6 hli hnub ci cable, thiab cov yam ntxwv uas cuam tshuam rau kW lub peev xwm rau hnub ci xaim.
Nkag siab txog Solar Cables thiab Solar Wires
Ua ntej peb xam ntau npaum li cas kW ib 6 hli hnub ci cable tuaj yeem ua tau, cia peb nkag siab tias cov hnub ci hluav taws xob thiab cov xov hluav taws xob hnub ci yog dab tsi, thiab vim li cas lawv tseem ceeb rau lub hnub ci.
Hnub ci Cable: Lub hnub ci cable yog ib qho hluav taws xob tshwj xeeb uas tsim los siv rau hauv cov tshuab photovoltaic (PV). Lub hnub ci cables yog tsim los ntawm tooj liab lossis txhuas conductors thiab yog insulated nrog cov ntaub ntawv xws li cross-linked polyethylene (XLPE) los yog ethylene tetrafluoroethylene (ETFE). Cov ntaub ntawv no yog tsim los tiv thaiv ib puag ncig hnyav, suav nrog UV raug, qhov kub thiab txias, thiab noo noo, thaum xa hluav taws xob ua haujlwm siab.
Hnub Ci Hlau: Hnub ci xaim yog hais txog tus neeg xyuas hauv lub hnub ci cable uas nqa hluav taws xob tam sim no. Cov hlau feem ntau yog xim-coded (liab rau qhov zoo thiab dub rau qhov tsis zoo) los qhia polarity. Cov hlau loj, feem ntau ntsuas hauv square millimeters (mm²), txiav txim siab lub peev xwm nqa tam sim no, thiab yog li tus nqi hluav taws xob (hauv kW) cov hlau tuaj yeem xa mus.
Nyob rau hauv ib qho kev teeb tsa hnub ci, xaiv qhov loj me me yog qhov tseem ceeb los xyuas kom muaj kev nyab xeeb ntawm kev xa hluav taws xob tam sim no los ntawm lub hnub ci vaj huam sib luag mus rau lwm yam khoom, xws li inverters, roj teeb, lossis kab sib chaws.
6mm Solar Cable txhais li cas?
Ib lub hnub ci 6 hli yog hais txog lub cable uas muaj thaj tsam ntawm 6 hli². Qhov kev ntsuas no qhia qhov tuab lossis txoj kab uas hla ntawm cov hlau tus neeg xyuas pib. Qhov loj ntawm cov xaim txiav txim siab npaum li cas tam sim no ( ntsuas hauv amps) nws tuaj yeem nqa yam tsis muaj cua sov, nrog rau qhov tso zis ntau tshaj plaws ( ntsuas hauv kilowatts lossis kW) uas tuaj yeem xa mus tau zoo.
Txawm li cas los xij, lub zog muaj peev xwm ntawm 6 hli hnub ci cable nyob ntawm ntau yam, suav nrog cov khoom siv ntawm cov hlau (tooj liab lossis txhuas), qhov system voltage, qhov kub thiab txias, thiab cov khoom siv rwb thaiv tsev. Lub hauv paus ntsiab lus yog tias cov cables loj tuaj yeem nqa tau ntau lub amps thiab, yog li ntawd, ntau dua kilowatts ntawm lub zog.
Kev txiav txim siab pes tsawg kW ib 6 hli hnub ci Cable tuaj yeem tuav tau
Txhawm rau txiav txim siab npaum li cas lub zog (hauv kW) 6 hli hnub ci cable tuaj yeem siv tau, peb yuav tsum xav txog cov hauv qab no:
Cov khoom siv coj ua: Copper vs. Aluminium
Kev ntsuas hluav taws xob ntawm qhov system
Ambient Kub
Ntev ntawm Cable
Kev txiav txim siab Voltage Drop
Cia peb tshawb xyuas cov xwm txheej no kom ntxaws.
1. Conductor Material: Copper vs. Aluminium
Cov khoom siv ntawm tus neeg xyuas pib yog ib qho ntawm cov tseem ceeb cuam tshuam rau lub peev xwm nqa tam sim no ntawm lub hnub ci xaim.
Tooj Solar Cable: Copper yog cov khoom siv feem ntau siv cov khoom siv vim nws cov hluav taws xob zoo tshaj plaws. Nws tuaj yeem nqa tam sim no ntau dua li txhuas ntawm tib qhov loj, ua rau tooj liab qhov kev xaiv zoo tshaj plaws rau cov tsev nyob thiab kev lag luam hnub ci. Rau 6 hli tooj liab hnub ci cable, lub ampacity (tam sim no-nqa peev) muaj peev xwm nyob ntawm 40 mus rau 50 amps nyob ntawm lub rwb thaiv tsev thiab kub tej yam kev mob.
Aluminium Solar Cable: Aluminium yog pheej yig dua tooj liab tab sis muaj qis conductivity. Raws li qhov tshwm sim, aluminium cables yuav tsum muaj thaj tsam loj dua los nqa tib qhov tam sim no. Rau 6 hli txhuas hnub ci cable, qhov ampacity feem ntau qis dua, nyob ib ncig ntawm 30 txog 40 amps.
Txij li thaum tooj liab muaj cov conductivity zoo dua, peb yuav xav tias tooj liab hnub ci cables hauv qhov piv txwv no, uas tuaj yeem ua tau zoo ntawm 40 txog 50 amps.
2. Kev ntsuas hluav taws xob ntawm qhov system
Lub zog hluav taws xob ntawm lub hnub ci ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab npaum li cas lub zog ntawm 6 hli hnub ci cable tuaj yeem xa mus. Nyob rau hauv lub hnub ci system, lub hwj chim (P) yog cov khoom ntawm voltage (V) thiab tam sim no (I):
P=V×I
Yog li, rau tib lub sijhawm tam sim no, lub zog hluav taws xob ntau dua tso cai rau koj xa hluav taws xob ntau dua.
12V System: Hauv 12V qhov system, qhov tam sim no feem ntau siab dua rau tib lub zog. Yog hais tias 6 hli hnub ci cable tuaj yeem ua tau 50 amps, lub zog siab tshaj plaws nws tuaj yeem nqa tau yog:
P{{0}}V × 50A=600W (0.6 kW)
24 V System: Hauv 24V qhov system, qhov tam sim no qis dua. Yog tias 6 hli tooj liab hnub ci cable tseem tuaj yeem ua 50 amps, lub zog siab tshaj plaws nws tuaj yeem nqa tau:
P=24V × 50A=1200W (1.2 kW)
48V System: Rau 48V qhov system, qhov kev xav tau tam sim no txo qis dua. Yog hais tias 6 hli tooj liab cable tuaj yeem ua 50 amps, lub zog muaj peev xwm yog:
P=48V × 50A=2400W (2.4 kW)
600V System: High-voltage systems (xws li 600V) feem ntau yog siv rau kev teeb tsa hnub ci loj. Yog tias 6 hli tooj liab hnub ci cable tuaj yeem nqa 50 amps, lub zog siab tshaj plaws nws tuaj yeem nqa tau yog:
P=600V × 50A=30, 000W (30 kW)
Yog li, lub zog (hauv kW) uas 6 hli hnub ci cable tuaj yeem xa tau yog nyob ntawm qhov system voltage. Qhov siab dua qhov hluav taws xob, lub zog ntau tuaj yeem xa mus rau tib qhov tam sim no.
3. Ambient kub thiab rwb thaiv tsev hom
Lub ambient kub thiab rwb thaiv tsev hom ntawm lub cable cuam tshuam nws ampacity. Nyob rau hauv ib puag ncig kub kub, lub peev xwm nqa tam sim no ntawm lub cable raug txo. Piv txwv li, 6 hli hnub ci cable ntsuas rau 90 degree nyob rau hauv ib puag ncig txias tuaj yeem tuav 50 amps, tab sis nyob rau hauv ib puag ncig 40 degree, lub ampacity yuav poob, yuav tsum tau ib tug loj cable loj rau tib lub load.
Tsis tas li ntawd, cov rwb thaiv tsev hom (xws li XLPE lossis ETFE) ua lub luag haujlwm hauv kev txiav txim siab qhov kub siab tshaj plaws uas lub cable tuaj yeem tiv taus. Cables nrog cov ntaub ntawv rwb thaiv tsev zoo dua tuaj yeem ua rau qhov kub thiab txias dua yam tsis muaj kev pheej hmoo ntawm kev puas tsuaj, yog li cia lawv nqa tam sim no ntau dua.
4. Ntev ntawm Cable thiab Voltage Drop Consideration
Voltage poob yog qhov txo qis hauv qhov hluav taws xob uas tshwm sim thaum cov hluav taws xob tam sim no ntws los ntawm cov hlau, feem ntau yog vim qhov tsis kam ntawm cov hlau. Qhov ntev ntawm cov hlau, qhov voltage poob ntau dua. Txhawm rau txo qhov teeb meem no, nws yog ib qho tseem ceeb uas yuav tsum ua kom lub cable khiav kom luv li sai tau, lossis siv cov cables loj dua yog tias lub cable khiav ntev.
Qhov hluav taws xob poob yuav tsum tau khaws cia kom tsawg (feem ntau qis dua 3%) kom ntseeg tau tias lub hnub ci ua haujlwm zoo. Rau kev khiav dej num ntev dua, lub hnub ci loj dua (xws li 10mm² lossis 16mm²) yuav tsum tau tiv thaiv kom tsis txhob muaj hluav taws xob ntau dhau.
Hom Lub Hwj Chim Muaj Peev Xwm ntawm 6mm Solar Cable
Cia peb xaus lub hwj chim tuav lub peev xwm ntawm 6 hli tooj liab hnub ci cable nyob rau hauv txawv voltage systems:
12V system: Ib lub 6 hli tooj liab hnub ci cable tuaj yeem nqa tau txog 0.6 kW (600W) ntawm lub zog.
24V system: Rau 24V qhov system, 6mm tooj liab hnub ci cable tuaj yeem nqa ib ncig ntawm 1.2 kW ntawm lub zog.
48V system: Hauv 48V qhov system, 6 hli tooj liab hnub ci cable tuaj yeem nqa kwv yees li 2.4 kW ntawm lub zog.
600V qhov system: Rau 600V qhov system, 6 hli tooj liab hnub ci cable tuaj yeem nqa txog li 30 kW ntawm lub zog.