Raws li lub ntiaj teb hloov mus rau cov khoom siv hluav taws xob tauj dua tshiab, lub hnub ci zog tau dhau los ua ib qho tseem ceeb hauv lub ntiaj teb lub zog toj roob hauv pes. Hnub ci lub zog siv hluav taws xob tso siab rau ntau yam khoom, nrog rau cov cables ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev sib kis tau zoo ntawm hluav taws xob los ntawm lub hnub ci vaj huam sib luag mus rau inverters thiab cov tshuab cia. Ib qho ntawm cov khoom tseem ceeb hauv lub hnub ci hluav taws xob yog lub photovoltaic (PV) cable, uas tau tsim tshwj xeeb los ua kom tau raws li qhov tshwj xeeb xav tau ntawm kev teeb tsa lub hnub ci.
Hauv tsab xov xwm no, peb yuav tshawb txog qhov sib txawv ntawm cov hnub ci cables (lossis photovoltaic cables) thiab cov kab hluav taws xob zoo tib yam, qhia txog cov yam ntxwv tseem ceeb uas ua rau cov xov hluav taws xob photovoltaic tseem ceeb rau lub hnub ci. Peb yuav tham txog cov khoom siv lub cev, cov khoom siv, kev ua haujlwm ntev, thiab cov yam ntxwv kev nyab xeeb uas paub qhov txawv ntawm cov hnub ci hluav taws xob los ntawm cov qauv hluav taws xob cables, thiab peb kuj tseem yuav cuam tshuam txog qhov tseem ceeb ntawm cov xov tooj hnub ci hauv lub tshuab photovoltaic.
1. Dab tsi yog aPhotovoltaic (PV) Cable?
Lub photovoltaic cable yog ib hom tshwj xeeb ntawm hluav taws xob cable tsim los siv rau hauv lub hnub ci zog. Cov kab hluav taws xob no yog siv los txuas cov hnub ci vaj huam sib luag rau cov inverter thiab cov roj teeb, ua kom muaj kev nyab xeeb thiab muaj txiaj ntsig ntawm cov hluav taws xob uas tsim los ntawm lub hnub ci. PV cables tau tsim tshwj xeeb los tiv thaiv qhov hnyav ib puag ncig uas feem ntau pom nyob rau sab nraum zoov hnub ci kev teeb tsa, xws li raug UV hluav taws xob, huab cua kub, thiab noo noo.
Lub luag haujlwm tseem ceeb ntawm cov hluav taws xob hnub ci yog thauj cov hluav taws xob ncaj qha (DC) los ntawm cov hnub ci vaj huam sib luag mus rau lub inverter, uas tom qab ntawd hloov DC mus rau hauv alternating tam sim no (AC) uas tuaj yeem siv los siv hluav taws xob hauv tsev, kev lag luam, lossis muab rov qab rau hauv daim phiaj. .
2. Dab tsi yog ib qhoOrdinary Kab?
Ibkab lig kev cai, ntawm qhov tod tes, hais txog cov khoom siv hluav taws xob siv hluav taws xob siv rau ntau yam kev siv uas tsis koom nrog cov kev xav tau tshwj xeeb ntawm cov tshuab hluav taws xob txuas ntxiv xws li hnub ci zog. Ordinary cables feem ntau yog siv rau kev xa hluav taws xob tam sim no hauv thaj chaw, kev lag luam, thiab chaw tsim khoom, txuas cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob thiab khoom siv.
Cov kab hluav taws xob zoo ib yam yog tsim los ua kom tau raws li cov cai hluav taws xob, tab sis lawv tsis feem ntau muaj cov khoom tshwj xeeb uas cov xov tooj hnub ci lossis cov xov hluav taws xob photovoltaic muaj, xws li tiv thaiv UV hluav taws xob, huab cua huab cua, thiab hluav taws xob siab.
3. Qhov txawv tseem ceeb ntawm Photovoltaic Cables thiab Ordinary Cables
Thaum ob lub hnub ci cables thiab cov kab hluav taws xob zoo tib yam ua haujlwm tseem ceeb ntawm kev xa hluav taws xob tam sim no, lawv cov qauv tsim, cov khoom siv, thiab kev ua haujlwm ntev yog qhov sib txawv. Hauv qab no, peb yuav nkag mus tob rau hauv qhov sib txawv tseem ceeb:
1. Durability thiab huab cua tsis kam
Ib qho ntawm qhov sib txawv tseem ceeb tshaj plaws ntawm cov hnub ci cables thiab cov kab hluav taws xob zoo tib yam yog lawv lub peev xwm los tiv thaiv ib puag ncig sab nraum zoov. Cov kab hluav taws xob photovoltaic yog tsim los tiv thaiv kev puas tsuaj ntawm UV rays, huab cua kub, thiab noo noo-ntau yam uas cuam tshuam rau sab nraum zoov hluav taws xob. Txij li cov hnub ci vaj huam sib luag tau teeb tsa sab nraum zoov, cov kab hluav taws xob yuav tsum tau tsim los xyuas kom lub sijhawm ntev thiab kev ua haujlwm zoo.
UV Resistance: Hnub ci cables tshwj xeeb yog tsim los ntawm UV-resistant cov ntaub ntawv los tiv thaiv degradation los ntawm ntev raug rau tshav ntuj. Cov kab hluav taws xob zoo tib yam, yog tias raug tshav ntuj rau lub sijhawm ntev, tuaj yeem ua kom tawg thiab ua rau nkig, ua rau muaj kev phom sij rau kev nyab xeeb.
Kub Resistance: Cov kab hluav taws xob photovoltaic feem ntau tuaj yeem ua haujlwm nyob rau hauv ntau qhov kub thiab txias, txij li -40 degree mus rau +90 degree, ua rau lawv tsim nyog rau kev teeb tsa hauv ntau qhov kev nyab xeeb, txij li lub caij ntuj no khov rau lub caij ntuj sov. Ordinary cables, thaum ua haujlwm, yuav tsis muaj qhov sib txawv ntawm qhov kub thiab txias.
Waterproofing: Ntau lub hnub ci cables yog tsim los nrog cov txheej txheem tiv thaiv ntxiv kom ntseeg tau tias lawv nyob twj ywm tsis muaj dej thiab tiv taus corrosion. Cov kab hluav taws xob zoo ib yam yuav tsis muaj kev tiv thaiv qib no, uas tuaj yeem ua rau luv luv thiab muaj peev xwm puas tsuaj yog tias raug dej.
2. Cov khoom sib xyaw thiab rwb thaiv tsev
Cov ntaub ntawv siv nyob rau hauv kev tsim kho ntawm lub hnub ci cables txawv heev ntawm cov zoo tib yam cables, feem ntau yog vim xav tau kev ua tau zoo dua nyob rau hauv ib puag ncig hnyav.
Cov khoom siv coj ua: Ob leegsOlar cables thiab cov kab hluav taws xob zoo tib yam feem ntau siv tooj liab ua cov khoom siv hluav taws xob vim tias tooj liab yog cov khoom siv hluav taws xob zoo heev. Txawm li cas los xij, qee zaum, cov kab hluav taws xob hnub ci kuj tseem siv tau txhuas, tshwj xeeb tshaj yog nyob rau hauv kev teeb tsa hnub ci loj, kom txo tau qhov hnyav thiab tus nqi thaum tswj kev ua kom txaus.
Cov khoom siv rwb thaiv tsev: Cov khoom siv rwb thaiv tsev siv nyob rau hauv lub hnub ci xov hlau feem ntau yog ua los ntawm cross-linked polyethylene (XLPE) los yog ethylene-propylene-diene monomer (EPDM), ob qho tib si uas muaj kev tiv thaiv zoo rau UV hluav taws xob, noo noo, thiab kub heev. Ordinary cables feem ntau siv cov ntaub ntawv xws li PVC (Polyvinyl Chloride) lossis roj hmab, uas yuav tsis muaj kev tiv thaiv ib puag ncig kev ntxhov siab.
Sheath Material: Lub plhaub sab nraud ntawm lub hnub ci hluav taws xob feem ntau yog ua los ntawm TPE (Thermoplastic Elastomer) lossis LSZH (Low Smoke Zero Halogen) cov tebchaw uas muaj kev tiv thaiv siab rau UV rays thiab ib puag ncig degradation. Cov kab hluav taws xob zoo ib yam tuaj yeem siv cov ntaub ntawv pov thawj tsawg dua, uas tuaj yeem degrade sai dua thaum raug tshav ntuj thiab lwm yam sab nraum zoov.
3. Kev ntsuas hluav taws xob
Hnub ci cables yog tsim los tswj cov hluav taws xob siab uas cuam tshuam nrog kev teeb tsa hnub ci. Lawv feem ntau raug ntsuas rau 1,000 V (volts DC) rau cov qauv kev teeb tsa hauv tsev, thaum lub tshuab ua lag luam loj tuaj yeem xav tau cov kab hluav taws xob ntsuas txog li 1,500 V DC.
Hauv qhov sib piv, cov kab hluav taws xob zoo tib yam, uas yog siv rau hauv ntau hom kev siv, feem ntau yog ntsuas rau qis voltages (xws li 600 V lossis 1, 000 V rau AC circuits hauv thaj chaw thiab chaw lag luam). Qhov ntsuas hluav taws xob ntau dua hauv cov hluav taws xob hnub ci ua kom ntseeg tau tias lawv tuaj yeem ua haujlwm ruaj ntseg ntawm cov khoom siv hnub ci yam tsis muaj kev pheej hmoo ntawm overheating, luv luv, lossis lwm yam teeb meem uas yuav tshwm sim los ntawm cov hluav taws xob ntau dhau.
4. Yooj yim thiab yooj yim ntawm kev teeb tsa
Thaum ob hom kab hluav taws xob tau tsim los rau kev teeb tsa tshwj xeeb, hnub ci cables feem ntau hloov pauv ntau dua li cov kab hluav taws xob zoo tib yam. Qhov kev hloov pauv no ua rau lawv yooj yim dua rau kev ua haujlwm nrog thaum lub sijhawm teeb tsa, tshwj xeeb hauv kev teeb tsa lub ru tsev qhov twg cov cables yuav tsum tau dhau los ntawm cov ces kaum, khoov, thiab teeb meem.
Cov xov hluav taws xob hnub ci tau tsim los ua kom yooj yim txaus kom haum rau qhov chaw nruj thiab ua kom muaj kev nyab xeeb, qhov zoo tib yam cables, tshwj xeeb tshaj yog cov tsim los rau kev siv hluav taws xob siab, tej zaum yuav tsis yooj yim thiab nyuaj rau maneuver.
5. Daim ntawv pov thawj thiab cov qauv kev nyab xeeb
Ob lub hnub ci cables thiab cov kab hluav taws xob zoo tib yam yog tsim los ua kom tau raws li cov qauv kev nyab xeeb thiab cov ntawv pov thawj, tab sis cov hnub ci hluav taws xob yuav tsum ua tau raws li cov qauv kev lag luam tshwj xeeb kom ntseeg tau tias lawv tsim nyog rau cov tshuab photovoltaic.
TUV Certification: TÜV (Technischer Überwachungsverein) ntawv pov thawj yog ib qho ntawm cov ntawv pov thawj tshaj plaws rau hnub ci cables. Nws ua kom ntseeg tau tias cov cable ua tau raws li cov qauv kev nyab xeeb thiab cov qauv zoo, suav nrog UV tsis kam, nplaim hluav taws kub, thiab kev tiv thaiv kub. Cov kab hluav taws xob zoo ib yam tuaj yeem ua tau raws li cov qauv kev nyab xeeb hluav taws xob, tab sis lawv tsis raug rau cov kev ntsuam xyuas tshwj xeeb uas yuav tsum tau siv rau hauv lub hnub ci fais fab.
UL npe: Hauv Tebchaws Meskas, cov hnub ci hluav taws xob feem ntau muaj daim ntawv pov thawj UL 4703, uas yog tshwj xeeb rau cov kab hluav taws xob photovoltaic. Ordinary cables, txawm li cas los xij, tau teev tseg raws li cov qauv UL sib txawv, nyob ntawm seb lawv xav siv.
6. Tus nqi
Txij li cov kab hluav taws xob hnub ci tau tsim tshwj xeeb los tiv thaiv ib puag ncig tshwj xeeb cuam tshuam nrog kev teeb tsa hnub ci, lawv feem ntau kim dua li cov kab hluav taws xob zoo tib yam. Tus nqi ntxiv qhia txog cov ntaub ntawv zoo dua, kev tsim kho tshwj xeeb, thiab cov kev sim uas yuav tsum tau ua kom muaj ntawv pov thawj.
Ntawm qhov tod tes, cov kab hluav taws xob zoo tib yam yog tsim los rau ntau yam kev siv hluav taws xob thiab tsis tas yuav tsum muaj tib theem ntawm kev ua haujlwm ntev, ua rau lawv tsis tshua muaj nqi hauv kev sib piv.
7. Daim ntawv thov thiab siv cov ntaub ntawv
Hnub ci Cables: Cov cables no yog siv rau hauv photovoltaic (solar) systems rau xa DC hluav taws xob los ntawm lub hnub ci vaj huam sib luag rau inverters thiab roj teeb. Lawv kuj tau siv rau hauv kev lag luam loj hnub ci ua liaj ua teb, kev teeb tsa lub ru tsev, thiab thaj chaw hnub ci hluav taws xob.
Ordinary Cables: Cov kab hluav taws xob no yog siv rau ntau yam kev siv, suav nrog kev xaim hluav taws xob hauv tsev, kev lag luam hluav taws xob, kev siv tshuab, thiab khoom siv. Lawv siv rau ob qho tib si AC thiab DC daim ntawv thov tab sis tsis haum rau cov kev xav tau tshwj xeeb ntawm lub hnub ci zog.