Nyob rau hauv ib lub hnub ci zog system, hnub ci cables los yoghnub ci xov hlauyog ib feem ntawm lub luag hauj lwm rau kev hloov hluav taws xob tam sim no los ntawmphotovoltaic (PV) panelsmus rau lwm qhov chaw ntawm lub cev xws li inverters, chargers, thiab hluav taws xob daim phiaj. Txhawm rau xyuas kom cov cables no ua tau zoo thiab ua tau zoo nyob rau hauv ib puag ncig sab nraum zoov, lawv yuav tsum tau insulated nrog cov ntaub ntawv ruaj khov uas tuaj yeem tiv taus ib puag ncig xws li UV hluav taws xob, huab cua kub, thiab kev ntxhov siab. Cov khoom siv rwb thaiv tsev yog qhov tseem ceeb rau kev nyab xeeb tag nrho, kev ua haujlwm ntev, thiab kev ua haujlwm ntawm cov hnub ci cables.
Kab lus no tshawb txog ntau yam ntaub ntawv rwb thaiv tsev siv nyob rau hauv hnub ci cables, lawv cov khoom, thiab vim li cas lawv thiaj li raug xaiv rau cov kev siv tshwj xeeb hauv lub hnub ci.
1. Lub luag hauj lwm ntawm rwb thaiv tsev nyob rau hauv hnub ci Cables
Lub rwb thaiv tsev nyob ib puag ncig lub hnub ci cable ua haujlwm rau ntau yam haujlwm tseem ceeb:
Kev nyab xeeb hluav taws xob: Nws tiv thaiv kev luv luv los ntawm kev cais cov tub ntxhais conductive (tooj liab lossis txhuas) los ntawm cov khoom siv sab nraud thiab lwm yam khoom siv hluav taws xob.
Kev tiv thaiv los ntawm Environmental Factors: Nws tiv thaiv lub cable los ntawm kev puas tsuaj sab nraud los ntawm UV hluav taws xob, nag, ya raws, plua plav, thiab kub hloov pauv.
Mechanical Protection: Nws muab cov txheej txheem tiv thaiv lub cev hnav thiab tsim kua muag, xws li kev puas tsuaj, cuam tshuam, thiab crushing.
Thermal Resistance: Rwb thaiv tsev tiv thaiv overheating los ntawm kev tswj cov kab hluav taws xob cua sov thiab ua kom muaj kev nyab xeeb hauv qhov chaw kub.
Cov khoom siv rwb thaiv tsev yuav tsum ua tau raws li cov kev cai tshwj xeeb ntawm lub hnub ci kev teeb tsa, kom ntseeg tau tias lub hnub ci cables muaj kev nyab xeeb, ruaj khov, thiab ua haujlwm tau ntev.
2. Cov khoom siv hluav taws xob zoo siv hauv cov hnub ci cables
Ob peb cov ntaub ntawv yog siv rau rwb thaiv tsev ntawm solar cables. Qhov kev xaiv ntawm cov khoom yog nyob ntawm tej yam xws li ib puag ncig tej yam kev mob, qhov kub thiab txias, kev xav tau ntawm txhua yam, thiab kev xav txog kev nyab xeeb ntawm hluav taws. Hauv qab no yog cov khoom siv rwb thaiv tsev feem ntau siv nyob rau hauv hnub ci xaim:
2.1 Hla-Txuas Polyethylene (XLPE)
Hla-txuas polyethylene (XLPE) yog ib qho ntawm cov khoom siv rwb thaiv tsev feem ntau siv hauvhnub ci cables. Nws yog ib hom polyethylene uas tau dhau los ua cov txheej txheem tshuaj hu ua cross-linking, uas txhim kho nws cov khoom thiab ua rau nws tsim nyog siv rau hauv lub hnub ci zog.
Cov yam ntxwv tseem ceeb ntawm XLPE:
Kub Kub Resistance: XLPE tuaj yeem tiv taus qhov kub thiab txias xws li -40 degree mus rau 90 degree, nrog qee qhov sib txawv rau qhov kub siab dua. Qhov no ua rau nws zoo tagnrho rau kev siv nyob rau hauv ib puag ncig nrog qhov kub thiab txias ncaj qha.
UV Resistance: Cov txheej txheem kev sib txuas ua rau XLPE tiv taus UV hluav taws xob, uas pab tiv thaiv kev degradation ntawm lub cable thaum lub sij hawm, tshwj xeeb tshaj yog nyob rau sab nraum zoov hnub ci daim ntaub ntawv uas cables raug rau lub hnub lub rays.
Durability: XLPE paub txog nws cov khoom siv kho tshuab zoo heev, suav nrog kev ua haujlwm tsis zoo, cuam tshuam, thiab ya raws. Qhov kev ua haujlwm ntev no ua kom muaj kev ntseeg tau ntev ntawm cov hnub ci cables txawm tias nyob rau hauv cov xwm txheej hnyav.
Tshuaj tiv thaiv: XLPE tiv taus rau feem ntau cov kua qaub, cov hauv paus, thiab cov roj, ua rau nws tsim nyog rau kev siv ntau yam ntawm ib puag ncig, suav nrog thaj chaw uas raug tshuaj lom neeg lossis cov av noo siab.
XLPE rwb thaiv tsev feem ntau yog siv rau hauv cov cables tsim rau ob qho tib si hauv tsev thiab kev lag luam hnub ci kev teeb tsa, vim nws ua ke ua haujlwm ntev, yooj yim, thiab kev nyab xeeb ntawm tus nqi pheej yig.
2.2 Thermoplastic Elastomer (TPE)
Thermoplastic elastomer (TPE) yog lwm cov khoom siv feem ntau siv rau kev rwb thaiv tsev ntawmhnub ci cables. TPE yog cov khoom siv ntau yam uas sib txuas cov yam ntxwv ntawm ob qho tib si roj hmab thiab yas, muab kev yooj yim thiab ua haujlwm rau kev ntxhov siab sab nraud.
Cov yam ntxwv tseem ceeb ntawm TPE:
Siab Flexibility: TPE yog qhov hloov tau yooj yim, ua rau nws yooj yim rau nruab thiab tuav, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov nrog nruj lossis nyuaj routing yuav tsum tau.
UV thiab huab cua Resistance: TPE yog inherently resistant rau UV hluav taws xob thiab huab cua, ua rau nws zoo tagnrho rau sab nraum zoov siv nyob rau hauv lub hnub ci systems raug tshav ntuj, los nag, thiab kub fluctuating.
Abrasion thiab Impact Resistance: TPE tiv taus kev puas tsuaj thiab cuam tshuam, muab kev tiv thaiv ntxiv rauhnub ci cableslos ntawm lub cev hnav thiab tsim kua muag.
Tsawg Toxicity thiab Environmental Friendliness: TPE raug suav tias yog ib puag ncig zoo dua piv rau lwm cov khoom siv yas vim nws tsis muaj cov khoom phom sij xws li txhuas thiab cadmium.
TPE-insulated hnub ci xov hlau yog qhov zoo tagnrho rau cov chaw nyob thiab kev lag luam kev teeb tsa uas yooj yim, ua haujlwm ntev, thiab kev tiv thaiv ib puag ncig yog qhov tseem ceeb.
2.3 Polyvinyl Chloride (PVC)
Polyvinyl chloride (PVC) yog ib qho ntawm cov khoom siv rwb thaiv tsev feem ntau siv hauv kev siv hluav taws xob, suav nrog qee lub hnub ci cables. Txawm hais tias PVC tsis yog siv dav hauv lub hnub ci li XLPE lossis TPE, nws tseem ua haujlwm zoo li cov khoom siv rwb thaiv tsev zoo rau cov ntawv thov tshwj xeeb.
Cov yam ntxwv tseem ceeb ntawm PVC:
Nqi-zoo: PVC yog ib qho ntawm cov khoom siv hluav taws xob pheej yig tshaj plaws, ua rau nws yog ib qho kev xaiv rau kev siv nyiaj tsawg hnub ci lossis qhov twg tus nqi yog qhov tseem ceeb.
Nruab nrab kub Resistance: PVC rwb thaiv tsev feem ntau muaj qhov kub thiab txias ntawm -15 degree mus rau 70 degree, uas ua rau nws haum rau cov huab cua me me thiab kev siv sab hauv tsev tab sis tsis zoo tagnrho rau cov tshuab raug kub heev.
UV Resistance (Limited): PVC tsis yog ib txwm tiv taus UV hluav taws xob. Txhawm rau txhim kho nws txoj kev tiv thaiv UV, nws feem ntau kho nrog cov tshuaj ntxiv. Tsis muaj kev tiv thaiv UV, PVC tuaj yeem degrade thiab nkig thaum raug tshav ntuj rau lub sijhawm ntev.
Cov tshuaj tiv thaiv nruab nrab: PVC yog resistant rau ntau yam tshuaj, tab sis nws yuav degrade nyob rau hauv lub xub ntiag ntawm tej yam hnyav, roj, thiab acids. Qhov no ua rau nws tsis haum rau ib puag ncig hnyav piv rau XLPE thiab TPE.
PVC feem ntau yog siv rau hauvhnub ci cablesrau kev siv sab hauv tsev lossis thaj chaw uas tsis muaj qhov kub thiab txias lossis UV hluav taws xob. Nws kuj tseem tuaj yeem siv rau hauv kev siv nyiaj-nco txog kev teeb tsa uas yuav tsum muaj kev ua haujlwm tsawg dua.
2.4 Ethylene Propylene Diene Monomer (EPDM)
Ethylene Propylene Diene Monomer (EPDM) yog ib hom roj hmab hluavtaws siv rau hauv rwb thaiv tsev thiab sheathing ntawmhnub ci cables, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov uas yuav tsum tau siab yooj thiab tsis kam mus rau sab nraum cov ntsiab lus.
Cov yam ntxwv tseem ceeb ntawm EPDM:
Zoo heev UV Resistance: EPDM muab kev tiv thaiv tshwj xeeb tiv thaiv UV hluav taws xob, ua rau nws zoo tagnrho rau kev teeb tsa hnub ci sab nraum zoov qhov chaw raug tshav ntuj ntev.
Kub kub ntau yam: EPDM tuaj yeem tiv taus ntau qhov kub thiab txias, feem ntau yog los ntawm -40 degree mus rau 90 degree, thiab tuaj yeem tiv taus luv luv ntawm qhov kub txog li 120 degree. Qhov no ua rau nws haum rau ib puag ncig nrog huab cua hloov pauv.
Dej thiab huab cua tiv taus: EPDM muaj kev tiv thaiv zoo heev rau dej, huab cua, thiab ozone, uas ua kom lub neej ntev ntawm cov hnub ci cables hauv qhov chaw ntub dej lossis cov av noo siab.
Yooj yim: EPDM yog qhov hloov pauv tau yooj yim, uas tso cai rau kev teeb tsa yooj yim dua hauv cov chaw nruj thiab thaj chaw uas xav tau txoj hauv kev nyuaj.
EPDM feem ntau yog siv rau sab nraum zoovhnub ci cableCov ntawv thov uas yuav tsum tau ua kom yooj yim thiab ua haujlwm rau UV rays, ya raws, thiab kub heev.
2.5 Fluoropolymers (FEP, PFA, ETFE)
Fluoropolymers, suav nrog fluorinated ethylene propylene (FEP), perfluoroalkoxy (PFA), thiab ethylene tetrafluoroethylene (ETFE), yog cov khoom siv hluav taws xob ua haujlwm siab siv hauv cov ntawv thov hnub ci, tshwj xeeb tshaj yog qhov muaj zog tiv taus tshuaj, tshav kub, thiab huab cua ib puag ncig yog xav tau. .
Tus cwj pwm tseem ceebFluoropolymers:
Kub kub Resistance: Fluoropolymers muaj qhov tshwj xeeb ntawm qhov kub thiab txias, nrog cov ntaub ntawv zoo li FEP thiab PFA muaj peev xwm tiv taus qhov kub ntawm -200 degree mus rau 260 degree.
Tshuaj Tiv Thaiv: Fluoropolymers muaj peev xwm tiv taus ntau yam tshuaj lom neeg, roj, thiab cov kuab tshuaj, ua rau lawv zoo tagnrho rau kev siv hauv ib puag ncig hnyav lossis qhov chaw uas muaj cov tshuaj corrosive.
UV Resistance: Fluoropolymers muaj kev tiv thaiv zoo heev rau UV hluav taws xob, kom ntseeg tau tias cov hnub ci hluav taws xob tswj lawv txoj kev ncaj ncees nyob rau lub sijhawm thaum raug tshav ntuj.
Tsis tshua muaj kev sib txhuam thiab tsis-stick: Cov ntaub ntawv no muaj kev sib txhuam tsawg, txo qhov hnav thiab tsim kua muag ntawm cov cables thaum nruab thiab ua haujlwm.
Fluoropolymers feem ntau yog siv nyob rau hauv high-endhnub ci cablesrau cov ntawv tshwj xeeb, xws li nyob rau hauv ib puag ncig huab lossis kev ua haujlwm siab hnub ci uas yuav tsum tau ua kom muaj cua sov zoo dua thiab muaj tshuaj lom neeg.
3. Cov yam ntxwv cuam tshuam rau kev xaiv cov khoom siv rwb thaiv tsev
Kev xaiv cov khoom siv rwb thaiv tsev rau cov hnub ci cable nyob ntawm ntau yam, suav nrog:
Ib puag ncig tej yam kev mob: Rau kev teeb tsa hnub ci sab nraum zoov, cov khoom siv nrog UV thiab huab cua tsis kam, xws li XLPE, TPE, thiab EPDM, yog qhov nyiam. Rau kev teeb tsa sab hauv tsev lossis vaj tse, PVC yuav yog qhov kev xaiv zoo dua.
Qhov kub thiab txias: Qhov ntsuas kub ntawm cov khoom siv rwb thaiv tsev yuav tsum ua raws li cov huab cua puag ncig uas lub hnub ci yuav ua haujlwm. XLPE thiab EPDM muab qhov kub thiab txias ntau dua li PVC, ua rau lawv tsim nyog rau kev teeb tsa hauv thaj chaw uas muaj qhov kub thiab txias.
Mechanical Requirements: Hnub ci cablesuas yuav raug cuam tshuam rau lub cev, xws li kev puas tsuaj lossis kev cuam tshuam, yuav tsum muaj cov ntaub ntawv rwb thaiv tsev zoo li XLPE lossis EPDM.
Kev txiav txim siab nqi: PVC thiab TPE muab cov kev daws teeb meem zoo rau qee yam kev siv, txawm hais tias lawv yuav tsis muab tib theem kev tiv thaiv raws li cov ntaub ntawv kim dua xws li XLPE lossis fluoropolymer.
XOV XWM TSHIAByog lub tuam txhab ua cable tshwj xeeb hauv kev tsim khoom thiab muab cov khoom lag luam zoo cable. Nrog rau xyoo ntawm kev lag luam kev lag luam, peb muab ntau hom cables, suav nrog America UL cables, Australia SAA cables, VDE cables, thiab TUV cables, catering rau ntau yam kev siv xws li kev lag luam, kev lag luam, thiab kev siv hauv tsev.
Tiv tauj peb hnub no kom paub ntau ntxiv txog peb cov khoom thiab kev pabcuam. Peb pab neeg mob siab rau yog npaj los pab koj nrog txhua yam koj xav tau cable.