Hnub ci cables, tseem xa mus raws li hnub ci xov hlau, yog qhov tseem ceeb ntawm photovoltaic (PV). Lawv ua haujlwm ua cov khoom siv rau kev xa hluav taws xob hloov hluav taws xob los ntawm cov hnub ci ntsa iab rau lwm cov kab ke xws li Inverters, roj teeb, thiab cov hluav taws xob hluav taws xob. Txij li hnub ci lub zog hluav taws xob feem ntau yog siv ntau puag ncig yog qhov tseem ceeb ntawm kev ua kom sib txawv, ua haujlwm, thiab kev nyab xeeb ntawm lub system.
Hauv tsab xov xwm no, peb yuav tshawb nrhiav li cas cov cabar cables ua nyob rau ntau ib puag ncig ib puag ncig, suav nrog qhov kub thiab txias, thiab raug rau UV hluav taws xob siab. Peb tseem yuav tham txog cov khoom siv ntawm lub hnub ci cables thiab seb lawv tsim los los tiv thaiv cov xwm txheej huab.
1. Kev ua tau zoo nyob rau hauv qhov chaw kub-ib puag ncig
Kev ntxhov siab ntau yog ib qho kev ntxhov siab ib puag ncig uas muaj lub ntsej muag ib puag ncig uas lub hnub ci zoo tshaj plaws uas muaj kev tshav ntuj hnyav thiab huab cua sov. Qhov ntsuas kub tuaj yeem cuam tshuam ntau ntxiv cuam tshuam rau cov ntaub ntawv rwb thaiv tsev thiab kev ua tau tag nrho ntawm cov cable.
1.1 thermal muaj zog ntawmHnub ci cables
Hnub ci cable yog tsim los ua haujlwm hauv ntau qhov kub, feem ntau los ntawm +90 degree, thiab qee cov cable tshwj xeeb tuaj yeem ua kom muaj qhov kub siab dua. Cov neeg saib xyuas, rwb thaiv tsev, thiab txheej sab nraud yog tsim los ntawm cov ntaub ntawv uas muaj kev tiv thaiv kub kom tiv thaiv kev ua tsis raws sijhawm.
Cov Ntawv Qhia Cov Ntawv: Feem ntau cov hluav taws xob hluav taws xob siv cov xov tooj tooj liab vim lawv cov hluav taws xob zoo hluav taws xob thiab tiv taus oxidation. Tooj liab tseem ua tau zoo nyob rau hauv cov kub thiab txias, ua kom muaj zog ruaj khov. Muaj qee kis, txhuas yog siv rau cov kev daws teeb meem zoo nqi, tab sis nws tsis tshua muaj peev xwm ua rau tooj liab thiab tej zaum yuav muaj kev nthuav dav ntau thiab kev txhawb nqa.
Rwb thaiv tsev ntaub ntawv: Cov ntaub ntawv feem ntau siv rau insulating hnub ci cables yog hla polyethylene roj hmab (epr), thiab polyvinyl chloride (PVC). Cov ntaub ntawv no tau tsim los tiv taus kev txwv tsis pub muaj kev kub siab. XLPE thiab EPR feem ntau nyiam rau cov ntawv thov kub siab vim lawv cov khoom siv ua kom zoo tshaj plaws.
1.2 Cov teebmeem ntawm qhov kub ntawm lub hnub ci cables
Thaum lub hnub ci ntsa iab yog tsim los kom muaj qhov kub thiab txias, ntev ntev los ua kom muaj cua sov heev tuaj yeem ua kev puas tsuaj yog tias qee yam kev ceev faj
Kev tsis txaus ntseeg ntawm rwb thaiv tsev: Raug txuas ntxiv mus rau cov khoom kub tuaj yeem ua rau cov khoom siv rwb thaiv tsev kom mos muag, tawg, lossis ua rau muaj peev xwm ua tau hluav taws xob. Tej zaum yuav kub siab kuj tseem ua kom nrawm nrawm ntawm cov kab ke, txo lawv lub neej pabcuam.
Overheating ntawm tus neeg coj: Cov kub kub tuaj yeem ua rau muaj kev kub siab heev, tshwj xeeb yog cov cables tau undersized rau cov kev cia siab lossis yog tias lub system tau ntsib cov txheej txheem overcurrent. Qhov no tuaj yeem ua rau lub neej sib tawg ntawm cov rwb thaiv tsev, cov kab luv luv, lossis hluav taws kub.
1.3 Cov kev daws teeb meem rau kev ua haujlwm siab
Txhawm rau txo cov kev cuam tshuam ntawm qhov kub ntawm lub hnub ci cables, cov khoom lag luam siv UV-resistant thiab tshav kub resistant thiab cua sov resistant cov ntaub ntawv rau rwb thaiv tsev thiab sheathing. Txuas ntxiv:
Kev Siv Conduits thiab Cable Tais: Nyob rau hauv cov chaw sov, muab hnub ci tso rau hauv cov khoom tiv thaiv lossis cov tais cable tuaj yeem tiv thaiv lawv los ntawm tshav ntuj ncaj qha thiab kub, pab tswj kom sov ruaj khov.
Sab nraum zoov: Cov xov xwm hnub ci zoo yog qhov tseem ceeb rau kev tiv thaiv kev kub ntxhov. Cov qoob loo uas me me rau cov thauj khoom tam sim no tuaj yeem kho dua sai sai, ua rau muaj kev puas tsuaj rau ob qho tib si cables thiab cov cuab yeej sib txuas.
2. Kev ua tau zoo hauv qhov chaw tsawg-kub
Tsawg kub, qhov tshwj xeeb tshaj yog nyob rau hauv cov huab cua txias, nthuav qhia lawv tus kheej cov kev cov nyom rau hnub ci cabar. Thaum cleslese tau khov txias, cov ntaub ntawv siv rau rwb thaiv tsev kom sov, sheathing tuaj yeem ua tawg lossis tawg uas yuav ua rau cov neeg sab hauv.
2.1 tsawg-qhov kub ntawmHnub ci cables
Lub rwb thaiv tsev thiab sab nraud sheathing ntawm lub hnub ci xov tooj yuav tsum tiv taus huab cua txias kom muaj kev tswj hwm kom muaj lawv cov khoom siv tau thiab siv tau. Cables tsim rau kev siv sab nraud sab nraum zoov feem ntau yog ntsuas ua qhov kub ntawm qhov kub thiab txias li {{0} degree. Cov khoom siv ntawm XLPE, PVC, thiab EPR xyuas kom meej tias cov cables tseem nyob twj ywm thiab tiv taus kev tawg txawm tias nyob hauv ib puag ncig txias heev.
2.2 Qhov cuam tshuam ntawm qhov kub tsawg ntawm lub hnub ci cabar
Cov kev pheej hmoo tseem ceeb ntawm cov kub tsawg rau hnub ci cables suav nrog:
Brittleness thiab kev tawg: ThaumHnub ci cablesraug rau subzero kub, lawv cov khoom rwb tuaj yeem ua tau nkawv, ua kom muaj kev pheej hmoo ntawm kev tawg. Qhov no tuaj yeem ua rau raug rau ntawm cov xov hlau sab hauv, ua rau muaj peev xwm luv luv ntawm cov hluav taws xob lossis hluav taws xob tsis ua haujlwm.
Txo kev ua haujlwm: Ntawm qhov tsis tshua muaj qhov kub heev, cov tsis kam ntawm cov neeg saib xyuas yuav nce ntxiv, ua rau kom muaj zog ua kom muaj zog thiab txo qis kev ua haujlwm.
2.3 Cov ntsiab lus rau qhov ntsuas kub tsawg
Txhawm rau kom ntseeg tau hnub ci solar zoo nyob rau hauv tsawg-kub ib puag ncig, cov tuam ntxhab ua haujlwm ntau yam:
Cov cua txias-huab cua resistant: Siv cov qoob loo uas tau tsim tshwj xeeb rau kev ua tau kub tsawg. EPR thiab XLPE rwb thaiv tsev yog feem ntau siv nyob rau hauv cov huab cua txias vim tias lawv muaj peev xwm tswj tau yooj yim txawm tias muaj qhov txias txias.
Kom zoo: Nruab cov cables nrog kev tiv thaiv txaus, xws li conduits lossis cov tais lossis cov tais, kom tiv thaiv tau qhov xwm txheej kom zoo. Ib qho ntxiv, xyuas kom meej tias cov xaim tsis khoov ntawm cov ces kaum ntse, raws li qhov no tuaj yeem ua rau tawg rau hauv qis qis.
3. Kev ua tau zoo hauv cov av noo thiab cov chaw ntub dej
Cov av noo thiab cov huab cua ntub yog ib qho tseem ceeb ib puag ncig cuam tshuam nrog lub durability thiab kev ua tau zoo ntawm lub hnub ci cable. Yo dej noo tuaj yeem ua rau muaj kev xeb, tshwj xeeb tshaj yog nyob rau hauv txuas thiab hlau tus cwj pwm, ua rau poob ntawm kev ua haujlwm, luv luv, thiab thaum kawg, system tsis ua haujlwm.
3.1 noo noo tiv thaiv ntawm lub hnub ci clesles
Hnub ci cov cab yog tsim los tiv thaiv cov dej noo thiab cov av noo los ntawm kev siv cov khoom siv dej thiab rwb thaiv tsev tshuab. Ntau cov xov hlau hluav taws xob tau tsim los ua cov dej-resistant lossis dej tsis txaus ntseeg, nrog cov txheej txheem sib txuas thiab cov txheej txheem tiv thaiv uas tiv thaiv dej los ntawm kev nkag mus rau hauv lub system.
Cov Khoom Siv Dej: Cesles siv nyob rau hauv cov chaw ntub dej ib puag ncig feem ntau yog coated nrog polyethylene (PE), XLPE, lossis EPR, uas tiv thaiv kev nkag mus. Ib qho ntxiv, silicone thiab tinned tooj cov neeg sojntsuam feem ntau siv nyob rau hauv cov cheeb tsam mus kom ya raws vim tias lawv muaj kev tiv thaiv corrosion ntxiv.
Kaw Kaw Cov Txuas Txuas thiab Cov Khaub Ncaws: Cov khoom siv dej tsis sib xws thiab cov thawv hlws ris tau siv los tiv thaiv cov dej tso dej thiab ua kom muaj kev ntseeg tau ntawm cov khoom siv hluav taws xob sib txuas.
3.2 cuam tshuam ntawm cov av noo nyob rau hnub ci cable
Ntev ntev raug rau cov av noo siab los yog dej tuaj yeem muaj ntau yam kev cuam tshuam ntawm hnub ci cables:
Corrosion ntawm kev coj: Noo noo tuaj yeem ua rau lub xeb ntawm tooj liab lossis aluminium center, ua rau muaj kev nce ntxiv thiab txo qis hauv kev kis cov khoom siv fais fab.
Rwb thaiv tsev kev: Ntev nthuav tawm cov dej noo tuaj yeem ua rau cov khoom siv rwb thaiv tsev, ua rau cov kab nrib pleb, lossis tsis ua haujlwm.
3.3 Cov kev daws teeb meem rau cov chaw muaj huab cua siab
Txhawm rau kom ntseeg tau hnub ci solar nyob rau hauv high-vaum lossis ntub dej, kev ntsuas hauv qab no yuav tsum tau ua:
Waterproof Conduits thiab Sleeving: Siv cov tshuaj tiv thaiv dej cawv los yog muab tes tsho ntxiv nyob ib ncig ntawm cov cable pab muab cov dej los ntawm cov dej los ntawm qhov chaw dej. Qhov no yog qhov tshwj xeeb tshaj yog thaum cables tab tom khiav hauv av lossis hauv cov cheeb tsam raug los nag hlob heev.
Kev kuaj xyuas tsis tu ncua thiab txij nkawm: Kev tshawb xyuas cov xas tsis tu ncua rau cov paib kev puas tsuaj, suav nrog cov dej noo hauv lub thawv sib tshuam lossis cov ntu, thiab hloov cov ntu uas puas lawm.
4. Kev ua tau zoo nyob rau hauv ntug dej hiav txwv thiab Salagwater ib puag ncig
Cov ntug dej hiav txwv ib puag ncig tam sim no cov kev sib tw rau hnub ci cables vim tias cov kev cuam tshuam corrosive. Ntsev muaj peev xwm ua kom nrawm qhov kev tsis txaus siab ntawm cov hlau tuav thiab nce kev pheej hmoo ntawm corrosion, uas tuaj yeem ua rau cov system ua tsis tiav yog tias tsis yog nyob.
4.1 Sealwater Corrosion Kuj
Hnub ci teeb tau siv rau hauv cov ntug hiav txwv yuav tsum tau tshwj xeeb tsim los tawm tsam corrosion tshwm sim los ntawm salgetwater thiab salty huab cua. Cov kab ke no feem ntau ua cov tooj liab towned, uas yog cov tiv taus ntau dua rau corrosion dua tooj liab. Tsis tas li ntawd, marine-co-co tsho lossis tshwj xeeb corrosion-resistant sheathing feem ntau siv los tiv thaiv cov cable.
4.2 Cov teebmeem ntawm Saltwater raug
Kev ua yeeb yam dej qab ntsev ua rau cov tshuaj corrosion, tshwj xeeb yog tooj liab, ua rau:
Corrosion ntawm kev coj: Saltwater yuav muaj peev xwm txo cov lifespan ntawm tooj liab tus cwj pwm, ua rau kev nce ntxiv ntawm kev tiv taus thiab kub tiam.
Kev tsis txaus ntseeg ntawm rwb thaiv tsev: Ntsev kuj tuaj yeem ua rau lub neej puas yog cov ntaub ntawv rwb thaiv tsev, tshwj xeeb tshaj yog tias cov cables tsis tsim los tiv thaiv cua lossis dej.
4.3 Cov ntsiab lus rau cov ntug hiav txwv
Txhawm rau txo cov kev cuam tshuam ntawm cov ntsev ntawm cov xov hluav taws xob, cov tswv yim hauv qab no tau pom zoo:
Siv tinned tooj liab: Tinned tooj cov neeg sojntsuam yog tiv taus corrosion ntau dua tus tooj liab, ua rau lawv zoo tagnrho rau kev siv hauv ntug hiav txwv lossis dej hiav txwv.
Marine-qib tiv thaiv sheathing: Hnub ci cables tsim rau siv nyob rau hauv ntug hiav txwv ib puag ncig yuav tsum muaj kev tiv thaiv salosion dej.
Thiab kho kom zoo: Cesles yuav tsum tau muab ntsia rau hauv cov ntim, cov quav dej los yog cov tais tsis taus kom txo qis ncaj qha rau sillwater thiab noo noo. Kev tshawb xyuas ib txwm thiab saib xyuas yuav tsum tau ua kom ntseeg tau tias cov cables nyob twj ywm zoo.