Raws li kev siv lub hnub ci hluav taws xob txuas ntxiv mus thoob ntiaj teb, kom ntseeg tau tias muaj kev ntseeg siab, kev nyab xeeb, thiab kev ua haujlwm ntev ntawm tag nrho cov khoom ntawm photovoltaic (PV) system tau dhau los ua qhov tseem ceeb. Ntawm cov khoom no, cov hnub ci cables, tseem hu ua hnub ci xov hlau, ua lub luag haujlwm tseem ceeb hauv kev xa hluav taws xob hluav taws xob los ntawm lub hnub ci vaj huam sib luag mus rau lwm qhov ntawm lub cev xws li inverters, roj teeb, thiab qhov kawg ntawm daim phiaj hluav taws xob lossis cov neeg siv kawg. Ib qho tseem ceeb tshaj plaws uas cuam tshuam rau kev ua haujlwm thiab kev ua haujlwm ntawm cov hnub ci cables yog lawv qhov kub thiab txias.
Kev khiav hauj lwm kub ntawm lub photovoltaic cable hais txog qhov kub thiab txias nyob rau hauv uas lub cable tuaj yeem ua haujlwm zoo thiab ua haujlwm zoo yam tsis muaj kev cuam tshuam nws cov kev ua haujlwm lossis kev nyab xeeb. Kev nkag siab txog qhov kub thiab txias ntawm lub hnub ci hluav taws xob yog qhov tseem ceeb thaum tsim thiab txhim kho lub hnub ci fais fab, vim tias cov hnub ci hluav taws xob feem ntau raug cuam tshuam rau qee qhov xwm txheej, xws li huab cua sov, txias, thiab hnub ci.
Tsab ntawv xov xwm no yuav piav qhia txog qhov kub thiab txias ntawm cov khoom siv hluav taws xob photovoltaic, cov yam ntxwv uas cuam tshuam rau nws, vim li cas nws tseem ceeb heev rau lub hnub ci fais fab, thiab yuav ua li cas xaiv cov cables uas tuaj yeem tiv taus qhov kub thiab txias hauv cov huab cua sib txawv.
1. Kev khiav hauj lwm kub yog dab tsiPhotovoltaic Cables?
Kev khiav hauj lwm kub ntawm lub photovoltaic cable yog txhais raws li qhov kub thiab txias nyob rau hauv uas lub cable tuaj yeem ua haujlwm tsis tu ncua yam tsis muaj kev cuam tshuam loj hauv kev ua haujlwm lossis kev pheej hmoo rau kev nyab xeeb. Qhov ntau yam no feem ntau txawv nyob ntawm cov khoom siv rwb thaiv tsev thiab cov neeg siv khoom siv hauv cable, nrog rau cov qauv tsim tshwj xeeb thiab kev tsim kho ntawm lub cable nws tus kheej.
Feem ntau, feem ntau cov hnub ci cables yog tsim los tiv thaiv ob qho tib si siab thiab qis kub ib yam ntawm cov chaw sab nraum zoov. Qhov kev khiav hauj lwm kub ntawm cov kab hluav taws xob photovoltaic poob ntawm -40 degree rau +90 degree (kwv yees li -40 degree F txog +194 degree F). Qee cov kab hluav taws xob zoo yog tsim los rau qhov kub thiab txias ntau dua, xws li -40 degree rau +120 degree (-40 degree F txog +248 degree F), kom suav rau ib puag ncig yam tseem ceeb, suav nrog lub hnub ci hnyav, qhov siab siab, thiab huab cua hloov pauv raws caij nyoog.
Cov khoom siv rwb thaiv tsev, cov khoom siv hluav taws xob, thiab kev tsim kho tag nrho ntawm lub hnub ci cable tag nrho ua rau kev txiav txim siab qhov kub thiab txias.
2. Cov yam ntxwv cuam tshuam rau kev ua haujlwm kub ntawmHnub ci Cables
Ntau yam cuam tshuam rau kev ua haujlwm kub ntawm cov hnub ci cables. Kev nkag siab txog cov xwm txheej no yog qhov tseem ceeb rau kev ua kom ntseeg tau tias hom kab hluav taws xob raug xaiv rau lub hnub ci hluav taws xob, tshwj xeeb hauv cov cheeb tsam uas muaj huab cua huab cua.
1. Cov khoom siv rwb thaiv tsev
Cov khoom siv rwb thaiv tsev siv nyob rau hauv hnub ci cables ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab lub peev xwm ntawm qhov kub thiab txias. Cov khoom siv rwb thaiv tsev sib txawv muaj qhov sib txawv ntawm qhov kub thiab txias:
Hla-txuas polyethylene (XLPE): Qhov no yog ib qho ntawm feem ntau cov ntaub ntawv rwb thaiv tsev siv nyob rau hauv hnub ci cables vim nws zoo heev thermal stability, tsis kam mus rau UV rays, thiab durability. Cables nrog XLPE rwb thaiv tsev feem ntau muaj qhov dav ntawm kev ua haujlwm kub, feem ntau -40 degree rau +90 degree . XLPE tseem paub txog nws qhov kev tiv thaiv ib puag ncig kev ntxhov siab thiab nws lub peev xwm tiv taus qhov kub thiab txias.
Thermoplastic Elastomer (TPE): Lwm cov khoom siv rwb thaiv tsev feem ntau, TPE yog qhov hloov tau yooj yim thiab tuaj yeem tiv taus ntau yam kub. Hnub ci cables nrog TPE rwb thaiv tsev feem ntau yog ntsuas rau qhov kub thiab txias ntawm -40 degree thiab +90 degree .
Polyvinyl Chloride (PVC): PVC yog lwm qhov kev xaiv rau insulating hnub ci cables, txawm hais tias nws feem ntau muaj qhov nqaim ntawm qhov ntsuas kub piv rau XLPE lossis TPE. Cables nrog PVC rwb thaiv tsev tej zaum yuav raug ntsuas rau -20 degree rau +70 degree los yog -30 degree rau +80 degree, nyob ntawm seb cov qib tshwj xeeb ntawm PVC siv.
Ethylene Propylene Diene Monomer (EPDM): EPDM roj hmab muaj zog tiv taus ib puag ncig kev ntxhov siab, suav nrog kub kub thiab UV hluav taws xob. Nws yog qee zaum siv nyob rau hauv cov hnub ci cables thiab tuaj yeem ua haujlwm nyob rau hauv thaj tsam ntawm -40 degree mus rau +90 degree, nrog rau qee qhov kev hloov pauv nyob ntawm qhov chaw tshwj xeeb.
2. Cov khoom siv hluav taws xob
Cov khoom siv hluav taws xob hauv cov hluav taws xob hnub ci (feem ntau yog tooj liab lossis txhuas) kuj cuam tshuam rau cable qhov kub thiab txias. Thaum tooj liab thiab txhuas ob leeg muaj cov ntsiab lus siab melting, lawv muaj cov hluav taws xob sib txawv thiab cov khoom siv thermal.
Tooj: Copper yog cov khoom siv feem ntau siv hauv cov hnub ci cables vim nws cov hluav taws xob zoo heev thiab thermal stability. Copper conductors feem ntau tuaj yeem tiv taus qhov kub thiab txias dua li aluminium conductors, thiab cables nrog tooj liab conductors tuaj yeem tswj kev ua haujlwm ntawm qhov kub txog li +90 degree lossis siab dua yam tsis muaj degradation.
Aluminium: Thaum aluminium conductors feem ntau siv nyob rau hauv hnub ci cables vim hais tias lawv yog cov nqi-zoo thiab lub teeb yuag, aluminium muaj thermal conductivity qis dua piv rau tooj liab. Yog li ntawd, hnub ci cables nrog txhuas conductors tej zaum yuav muaj qhov kub thiab txias me ntsis dua li cov uas muaj tooj liab conductors, txawm hais tias lawv tseem feem ntau ua tau zoo nyob rau hauv tib -40 degree rau +90 degree kub ntau yam.
3. Kev tsim kho thiab tsim kab
Zuag qhia tag nrho kev tsim kho ntawm lub hnub ci cable-xws li lub thickness ntawm rwb thaiv tsev, tus naj npawb ntawm conductors, thiab cov khoom siv rau sab nrauv sheath-tuaj yeem cuam tshuam nws lub peev xwm tiv taus qhov kub thiab txias. Nyob rau hauv lub hnub ci cables, ntau txheej kev tsim kho (nrog rwb thaiv tsev, sheathing, thiab reinforcement) xyuas kom meej tias lub cable tseem ruaj thiab hloov tau txawm nyob rau hauv hnyav hnyav.
Txheej txheej: Cov ntaub qhwv sab nraud ntawm lub cable, uas tiv thaiv cov conductors sab hauv thiab rwb thaiv tsev los ntawm ib puag ncig ib puag ncig, ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cable los ntawm huab cua kub. Feem ntau yog tsim los ntawm cov ntaub ntawv xws li thermoplastic elastomer (TPE) lossis polyvinyl chloride (PVC), lub tsho sab nrauv yuav tsum raug ntsuas kom tiv taus UV hluav taws xob, los nag, daus, thiab kub heev.
Reinforced los yog Armored Cables: Qee qhov xwm txheej, tshwj xeeb tshaj yog rau cov xov tooj hnub ci siv nyob rau hauv cov chaw lag luam lossis raug rau cov neeg kho tshuab kev ntxhov siab, cov kab hluav taws xob yuav tsum tau ntxiv cov txheej txheem ntxiv los yog armored nrog hlau los tiv thaiv cov tub ntxhais los ntawm kev ntxhov siab sab nraud. Cov cables no feem ntau tau txhim kho qhov kub thiab txias thiab tuaj yeem ua tau zoo txawm tias nyob hauv ib puag ncig huab cua.
4. Ib puag ncig thiab kev nyab xeeb
Kev khiav hauj lwm kub ntau ntawm cov hnub ci cables yuav tsum tsim nyog rau ib puag ncig tshwj xeeb uas lawv yuav raug teeb tsa. Cables nyob rau hauv cov suab puam tej zaum yuav tsum tau tiv taus kub, thaum cables nyob rau hauv txias huab cua yuav tsum tau tswj kev ua tau zoo thaum lub caij ntuj no txias. Tsis tas li ntawd, raug UV rays, av noo, thiab noo noo tuaj yeem cuam tshuam rau thermal stability ntawm cov hnub ci cables.
Piv txwv li, nyob rau hauv cov huab cua kub heev xws li Middle East los yog ib feem ntawm Africa, cov hnub ci cables yuav raug kub kub tsis tu ncua, yog li xaiv cov cables uas muaj qhov ntsuas kub ntau dua (txog +120 degree) tuaj yeem pab ua kom ntseeg tau. kev ntseeg tau. Hloov pauv, nyob rau hauv cov cheeb tsam txias nrog qhov kub qis qis, cov kab hluav taws xob tsim los ua haujlwm ntawm -40 degree lossis qis dua yuav tsim nyog.
3. Yog vim li cas qhov kev khiav hauj lwm qhov kub thiab txias nyob rau hauv lub hnub ci fais fab system
Kev khiav hauj lwm kub ntawm cov hnub ci cables yog qhov tseem ceeb rau ntau yam. Hauv qab no yog qee qhov laj thawj tseem ceeb vim li cas nws tseem ceeb hauv lub hnub ci fais fab:
1. Kev nyab xeeb
Qhov kev txhawj xeeb tseem ceeb thaum nws los txog rau qhov kub ntawm cov hnub ci cables yog kev nyab xeeb. Cov kab hluav taws xob uas tsis tsim los tswj qhov kub thiab txias yuav dhau los ua kom muaj kev puas tsuaj ntawm cov rwb thaiv tsev, hluav taws xob hluav taws xob, lossis lub cev tsis ua haujlwm. Piv txwv li, yog tias lub hnub ci xaim raug kub siab tshaj nws qhov peev xwm, cov rwb thaiv tsev tuaj yeem yaj lossis tawg, uas ua rau luv luv Circuit Court lossis arcing.
2. Durability thiab ntev
Cables uas tuaj yeem ua haujlwm nyob rau hauv qhov dav dav ntawm qhov kub thiab txias yuav muaj lub neej ntev dua. Cov kab hluav taws xob hnub ci raug kub hnyiab rau lub sijhawm ntev yog feem ntau ua rau cov neeg kho tshuab hnav, tawg, lossis rwb thaiv tsev tawg. Los ntawm kev xaiv cov kab hluav taws xob uas tsim nyog rau kev ua haujlwm kub, cov tswv hauv lub cev tuaj yeem ua kom cov kab hluav taws xob hnub ci yuav ua tau zoo thoob plaws hauv lub neej ntawm lub hnub ci zog, uas tuaj yeem yog 25 xyoo lossis ntau dua.
3. Kev ua tau zoo thiab kev ua haujlwm zoo
Cov kub hloov pauv cuam tshuam rau tag nrho kev ua haujlwm ntawm lub hnub ci zog. Yog hais tias lub hnub ci cables tsis tuaj yeem ua haujlwm zoo nyob rau hauv qhov kub thiab txias ntawm ib puag ncig, kev xa hluav taws xob tuaj yeem cuam tshuam. Piv txwv li, thaum tshav kub kub, yog hais tias lub hnub ci xov hlau tsis txaus nyob rau qhov kub thiab txias, kuj yuav nce, ua rau lub zog poob thiab txo lub zog efficiency.
4. Compatibility nrog System Cheebtsam
Kev khiav hauj lwm kub ntawm lub hnub ci cables kuj yuav tsum tau sib xws nrog qhov ntsuas kub ntawm lwm cov khoom hauv lub hnub ci zog, xws li hnub ci vaj huam sib luag, inverters, thiab roj teeb. Yog hais tias cov cables tsis tuaj yeem tswj qhov kub ntawm qhov sib txawv uas cov khoom no ua tau, qhov kev ua tau zoo ntawm lub kaw lus yuav raug cuam tshuam.