Nyob rau hauv aphotovoltaic (PV) system, Cesles yog cov tseem ceeb tivthaiv uas ua kom muaj kev sib kis hluav taws xob ntawm lub zog hluav taws xob los ntawm cov inverter, lub zog cia cov khoom lossis hluav taws xob xa khoom. Txij li cov panels hnub ci tau teeb tsa hauv cov huab cua sab nraud xws li cov khoom siv cable, los ntawm cov khoom siv cable, cov khoom siv hluav taws xob, kev ua haujlwm hauv ib puag ncig, thiab lwm yam ua haujlwm, thiab lwm yam.
Kab lus no yuav mus saib qhov sib txawv ntawm qhov sib txawv ntawm lub hnub ci, cov kab ke, thiab lawv cov ntaub ntawv tshwj xeeb hauv photovoltaic.
1. Cov lus txhais ntawmHnub Ci Cable
Hnub ci cable yog txoj hlua tshwj xeeb tsim rau photovoltaic (PV). Nws lub ntsiab muaj nuj nqi yog los txuas cov vaj ntxwv hnub ci nrog cov invereters, lub zog faib khoom los yog lub zog hluav taws xob los hloov hluav taws xob hluav taws xob tsim los ntawm photovoltaic modules. Hnub ci clesles muaj cov yam ntxwv tshwj xeeb xws li anti-ultriolet, uas pab kom lawv tswj hwm kev nyab xeeb rau sab nraum zoov thiab sab nraud kev nyab xeeb.
1.1 qauv ntawm hnub ci cable
Hnub ci cables feem ntau muaj cov neeg coj ua, rwb thaiv tsev cov khaubncaws sab nraud thiab txheej txheem sab nraud. Tus neeg coj ua feem ntau siv tooj liab (CU) lossis txhuas (al), ntawm cov tooj liab ntau dua thiab yog li ntau dua hauv photovoltaic. Lub rwb thaiv tsev txheej feem ntau siv hla polyethylene (xlpe), thiab lwm yam ntaub ntawv, thiab cov khoom siv sab nraud (PE) thiab lwm yam khoom siv hluav taws xob.
2. Cov lus txhais ntawm kev siv cable
Cables dog dig yog clesles siv dav rau kev lag luam, kev lag luam lag luam thiab hauv tsev. Lawv txoj haujlwm tseem ceeb yog txhawm rau hloov hluav taws xob hluav taws xob. Muaj ntau hom kab ntsig dog dig, suav nrog cov hluav taws xob ntau, tswj cov cables, kev sib txuas lus cables, thiab lwm yam nrog cov chaw ib puag ncig. Cov qauv ntawm cov txheej txheem dog dig kuj suav nrog cov kev xaiv ntsej muag, thiab feem ntau tsis muaj kev lag luam UV lossis kev tiv thaiv huab cua tsis kam los yog corrosion tsis kam los ntawm hnub ci.
3. Lub ntsiab sib txawv ntawm lub hnub ci cirles thiab cov cab xwm dog dig
Muaj ntau ntau qhov kev sib txawv ntawm lub hnub ci thiab cov cab kuj, uas ua rau lawv sib txawv hauv kev thov ib puag ncig, cov khoom xaiv thiab kev ua tau zoo.
3.1 ib puag ncig tsis kam
Hnub ci cim:Hnub ci cov qoob loo feem ntau yuav tsum tau tiv thaiv cov kev mob uas nyuaj siab ib puag ncig. Piv txwv li, cov kab ke hauv photovoltaic yuav tsum tau nquag mus rau sab nraum zoov ib puag ncig xws li huab cua sov, cua thiab xuab zeb, tshuaj (xws li cov tshuaj ntxuav ntsev). Yog li ntawd, lub cleter sab nraud thiab rwb thaiv tsev txheej ntawm lub hnub ci tsis kam, UV tiv taus, dej tsis kam thiab corrosion tsis kam. Feem ntau, cov riam sab nraud ntawm lub hnub ci cirles yog ua los ntawm ultraviolet (UV) -resistant polyethylene (PE) lossis lwm yam khoom siv los tiv thaiv UV kev laus thiab cov khoom siv tsis taus.
Cables dog dig:Cov qoob loo zoo tib yam feem ntau yog siv nyob rau hauv ib puag ncig sab hauv tsev lossis tsis ncaj ncees rau huab cua huab, yog li qhov yuav tsum tau ua rau ib puag ncig yog qhov tsawg. Cov ntaub pua av sab nraud ntawm cov kab sib txawv feem ntau tsis muaj muaj zog tshwj xeeb UV kam ua, thiab tsuas yog tsim nyog rau cov kev nyab xeeb rau kev nyab xeeb. Yog tias cov Cables yuav tsum muaj kev siv sab nraum zoov, yuav tsum muaj kev tiv thaiv ntxiv.
3.2 Cov Khoom Siv Cable Rwb Thaiv Tsev
Hnub ci cim:Cov ntaub ntawv rwb thaiv tsev ntawm lub hnub ci clesles yuav tsum muaj cov kub ua kom tsis kam, UV tsis kam thiab muaj zog oxidation tsis kam. Txij li thaum photovoltic panels tej zaum yuav raug lub hnub ci rau lub sijhawm ntev, cov rwb los thaiv cov ntaub ntawv uas tuaj yeem tiv taus ntau kub, thiab kev laus txog kev laus. Piv txwv li, cov khoom siv rwb thaiv rwb siv rau cov kab cim hnub ci suav nrog Polyethylastics (XLPE), Fluoroplastics (FREP) thiab polyvinyl chloride (PVC) **. Cov ntaub ntawv no tuaj yeem ua haujlwm stably rau lub sijhawm ntev hauv kev kub siab thiab ultraviolet ib puag ncig.
Cables dog dig: Cov ntaub ntawv rwb thaiv tsev ntawm cov cables dog dig feem ntau yog PVC (polyvinyl chloride), polyethylene (PE) lossis roj hmab. Cov ntaub ntawv no tsim nyog siv rau hauv cov neeg tsis muaj zog thiab muaj cov neeg tsis zoo UV kuj thiab kev laus tsis kam. Yog li ntawd, cables dog dig tsis tsim nyog rau kev sib tw ntev los yog hnub ci lossis ib puag ncig sab nraud.
3.3 kev voltage theem
Hnub ci cim:Qhov ntsuas hluav taws xob ntawm lub hnub ci feem ntau yog qhov siab dua thiab feem ntau yog nyob ntawm cov qauv tsim hluav taws xob ntawm lub photovoltaic. Cov xov xwm hnub ci sib luag yog ntsuas rau 600V, 1000V lossis 1500v. Rau feem ntau ntawm cov chaw lag luam xov tooj thiab cov xov tooj ua lag luam, qhov hluav taws xob ntawm 1000000 ntau ntau; Rau cov photovoltaic fais fab nroj tsuag, qib siab dua, xws li 1500v, tej zaum yuav tsum tau ua. Cov kev voltage no ua kom cov hnub ci hluav taws xob tuaj yeem ua haujlwm nyab xeeb hauv photovoltaic lub tshuab ntev.
Cables dog dig:Qhov ntsuas hluav taws xob zoo nkauj sib txawv raws li cov ntawv thov sib txawv, feem ntau yog 300 / 750V, thiab lwm yam rau tsev neeg. Cov cable tsis tu ncua feem ntau muaj qhov ntsuas ntsuas hluav taws xob qis dua lub hnub ci sib kis thiab yog li tsis tuaj yeem siv rau lub hwj chim sib kis hauv photovoltaic.
3.4 Yooj Yim Thiab Hnav Tsis Tau
Hnub ci cim:Vim tias muaj kev sib txawv ntawm cov photovoltaic cov kab ke installation ib puag ncig, lub hnub ci cables feem ntau yuav tsum muaj kev kub hlwb thiab hnav tsis kam. Cov qoob loo feem ntau yuav tsum tau pw hauv av lossis txuas nrog cov khoom sib txawv, yog li lawv lub zog tensile thiab bending tsis yog qhov tseem ceeb. Lub tsho tiv thaiv sab nraud ntawm lub hnub ci clesles feem ntau yog qhov muaj zog thiab tuaj yeem tiv taus qhov extrusion thiab ncab ntawm cov rog sab nraud.
Cables dog dig:Qhov kev txhaum ua tsis zoo thiab tshuab zog ntawm cov xov tooj dog dig tsis zoo raws li hnub ci ib puag ncig uas lawv yuav cuam tshuam los ntawm cua, nag, thiab kev cuam tshuam ntawm lub cev. Yog tias cov clesrom me me siv nyob rau hauv photovoltaic, nws yuav ua rau cable kev puas tsuaj lossis tsis ruaj khov.
4. Cov Qauv Txheej Txheem rau Hnub Ci Cables thiab Cables dog dig
Ob lub hnub ci ntsa iab thiab cov nplais zoo tib yam yuav tsum tau ua raws li cov qauv kev nyab xeeb thiab kev tsim kho hnub ci thiab tsim kom muaj kev nyab xeeb thiab kev nyab xeeb hauv photovoltaic.
4.1 Cov Qauv Rau Hnub Ci Cabar
IEC 60216:Cov qauv rau cov kub ua luam ntawm cov cables, uas xav tau cov cables kom muaj kev ua kom hluav taws xob hauv qhov chaw kub.
IEC 60754:Qhia txog cov tseev kom muaj pa luam yeeb thiab corrosive gases los ntawm clesles thaum tua hluav taws.
UL 4703:Nov yog tus qauv Asmeskas tshwj xeeb uas yog hais tias tus qauv tsim, kev ua tau zoo thiab kev sim tshuaj ntawm photovoltaic cables tuaj yeem siv tau kev nyab xeeb hauv ntau qhov chaw.
TÜV Daim Ntawv Pov Thawj: Cov ntawv pov thawj European qauv rau photovoltaic cable, kom cov cables muaj huab cua tsis txaus thiab UV tsis txaus siab thiab UV tsis kam thiab UV tsis kam thiab UV tiv taus.
4.2 Cov Qauv rau Cov Cables Txawv Tebchaws
IEC 60227:Tus qauv tsim nyog rau cov hluav taws xob dav dav, tsuas yog tsom rau cov khoom siv thiab cov qauv tsim ntawm cov cable.
UL 83:American txheem uas qhia meej txog kev nyab xeeb kom muaj kev nyab xeeb thiab kev sim tshuaj rau lub zog hluav taws xob.
Rau 50525:European txheem rau cov cab kuj tsis tshua muaj hluav taws xob tsawg.
5. Thov cov xwm txheej ntawm lub hnub ci clesles thiab cov cab kuj
5.1 Daim ntawv thov ntawm lub hnub ci cable
Hnub ci clesles yog dav siv nyob rau ntau hom photovoltaic, suav nrog cov chaw nyob, ua lag luam thiab loj-nplai photovoltaic fais fab nroj tsuag. Lawv feem ntau yog siv los txuas cov panels ci ntsa iab rau inverters, roj teeb cia tshuab thiab muab cov kev faib khoom kom ntseeg tau tias muaj kev nyab xeeb ntawm lub zog. Txij li thaum photovoltaic cov tshuab feem ntau yog nruab sab nraum zoov, cov xaim thiaj yuav tsum tau tiv taus UV, kev laus thiab kub.
5.2 Daim ntawv thov ntawm cov cab xwm dog dig
Cov khoom siv hluav taws xob zoo tib yam tau siv rau lub zog sib kis hauv tsev, kev sib txuas ntawm hluav taws xob, thiab feem ntau yog cov khoom siv hluav taws xob, thiab tsis haum rau cov chaw me me rau sab nraud lossis cov huab cua phem.