Kev teeb tsa lub hnub ci cables ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm tag nrho thiab kev ua haujlwm ntev ntawm lub hnub ci zog. Raws li lub hnub ci zog txuas ntxiv mus nce ntxiv hauv cov chaw nyob thiab kev lag luam, nws yog ib qho tseem ceeb kom ntseeg tau tias tag nrho cov khoom siv, tshwj xeeb tshaj yog cov xov hluav taws xob hnub ci thiab cov cables, raug teeb tsa kom raug kom tsis txhob muaj kev ua tsis tiav, tsis muaj txiaj ntsig, thiab kev nyab xeeb. Cov kab hluav taws xob hnub ci yuav tsum tiv taus qhov chaw sab nraum zoov, huab cua huab cua, thiab hluav taws xob thauj khoom thaum tuav lub sijhawm ntev thiab ua haujlwm.
Hauv tsab xov xwm no, peb yuav tshawb xyuas cov kev ceev faj tseem ceeb uas yuav tsum tau ua thaum txhim khohnub ci cablesthiabhnub ci xov hlau, suav nrog ntau yam xws li xaiv cov khoom siv, kev xav txog ib puag ncig, kev tuav kom zoo, kev ntsuas kev nyab xeeb, thiab cov txheej txheem kev teeb tsa.
1. Xaiv txoj cai hnub ci Cables
Thawj kauj ruam hauv kev teeb tsa lub hnub ci cable yog xaiv qhov tseeb ntawm cov cables. Cov kab hluav taws xob hnub ci tau tsim tshwj xeeb rau cov tshuab photovoltaic (PV), thiab xaiv cov ntaub ntawv zoo yog qhov tseem ceeb rau kev ua haujlwm zoo thiab kev nyab xeeb.
1.1 Conductor Khoom: Tooj vs. Aluminium
Tooj liab yog cov khoom siv feem ntau siv rau cov neeg xyuas pib hauv cov hnub ci cables vim nws muaj cov hluav taws xob zoo heev thiab muaj kev ntseeg siab heev rau kev siv hluav taws xob hnub ci. Txawm li cas los xij, tooj liab kuj ua rau corrosion, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj cov av noo siab lossis ntsev raug. Hauv thaj chaw ntug dej hiav txwv lossis qhov chaw muaj ntsev ntau, tinned tooj liab feem ntau pom zoo vim nws muaj kev tiv thaiv zoo dua rau corrosion.
Aluminium yog cov khoom siv hluav taws xob pheej yig dua, tab sis nws muaj qhov hluav taws xob qis dua li tooj liab thiab feem ntau ua rau oxidation. Nws feem ntau yog siv rau hauv kev teeb tsa loj dua lossis hauv cov xwm txheej uas tus nqi yog qhov tseem ceeb. Txawm li cas los xij, thaum siv aluminium conductors, kev teeb tsa kom zoo thiab kev txiav tawm yog qhov tseem ceeb los tiv thaiv cov teeb meem xws li overheating lossis kev sib txuas tsis zoo.
1.2 Cov khoom siv rwb thaiv tsev
Cov kab hluav taws xob hnub ci yuav tsum muaj cov rwb thaiv tsev uas tuaj yeem tiv taus qhov kub thiab txias, UV hluav taws xob, noo noo, thiab lub cev hnav thiab tsim kua muag. Cov khoom siv rwb thaiv tsev feem ntau siv rau cov hnub ci cables yog:
XLPE (Cross-Linked Polyethylene): Paub txog nws qhov kub thiab txias tsis kam, ua haujlwm ntev, thiab muaj peev xwm tiv taus ib puag ncig, XLPE feem ntau siv hauv cov hnub ci cables. Nws yog UV resistant, tshuaj lom neeg ruaj khov, thiab ruaj khov nyob rau hauv ob qho tib si sab hauv tsev thiab sab nraum zoov ib puag ncig.
EPR (Ethylene Propylene Roj Hmab): EPR yog lwm cov khoom siv hluav taws xob nrov siv hauv cov hnub ci cables. Nws muaj huab cua zoo heev thiab UV tsis kam thiab muaj peev xwm tiv taus qhov kub thiab txias.
Rau cov ntug hiav txwv dej los yog ntug hiav txwv dej, cables nrog UV-resistant rwb thaiv tsev yog qhov tseem ceeb los tiv thaiv kev degradation los ntawm lub hnub raug ntev.
1.3 Cov khoom siv sab nrauv
Sab nrauv ntawm lub hnub ci cable muab kev tiv thaiv ntawm lub cev puas tsuaj, ib puag ncig kev puas tsuaj, thiab hluav taws xob UV. Cov ntaub ntawv sheath muaj xws li:
PVC (Polyvinyl Chloride): PVC yog ib qho khoom siv zoo rau cable sheathing uas muaj kev tiv thaiv zoo tiv thaiv ya raws thiab UV hluav taws xob. Txawm li cas los xij, PVC tej zaum yuav degrade thaum lub sij hawm raug mob hnyav ib puag ncig, tshwj xeeb tshaj yog nyob rau hauv seaside ib puag ncig nrog ntsev raug.
TPE (Thermoplastic Elastomer): TPE yog qhov ruaj khov dua li PVC thiab muaj kev tiv thaiv zoo dua tiv thaiv ya raws, UV hluav taws xob, thiab qhov kub thiab txias. Nws feem ntau pom zoo rau cov ntawv thov uas cov cables raug cuam tshuam rau ib puag ncig hnyav, xws li cov ntug hiav txwv dej lossis sab hnub poob hnub ci.
LSZH (Low Smoke Zero Halogen): LSZH cables feem ntau yog tsim los siv sab hauv tsev lossis qhov chaw uas cov pa luam yeeb thiab tshuaj lom yuav tsum tau txo qis thaum muaj hluav taws kub. Cov cables no tsis tshua muaj rau kev teeb tsa sab nraum zoov tab sis tuaj yeem siv rau hauv ib puag ncig tshwj xeeb uas yuav tsum muaj kev nyab xeeb ntxiv.
1.4 Daim ntawv pov thawj thiab cov qauv
Thaum xaiv cov hnub ci cables, xyuas kom meej tias lawv ua tau raws li cov ntawv pov thawj tsim nyog thiab cov qauv los lav kev nyab xeeb, ua haujlwm ntev, thiab kev ua haujlwm. Cov qauv uas muaj xws li:
IEC 60216: Ua: Cov qauv no qhia txog kev ua tau zoo thiab kev sim ntawm cov cables siv nyob rau hauv cov tshuab photovoltaic, kom ntseeg tau tias lawv ua tau raws li qhov yuav tsum tau muaj rau ib puag ncig raug.
TIAB SA 4703: Daim ntawv pov thawj UL ua kom ntseeg tau tias cov cables ua tau raws li cov qauv kev nyab xeeb rau kev siv hauv kev teeb tsa hnub ci, suav nrog kev tiv thaiv kub kub, noo noo, thiab UV hluav taws xob.
TÜV: TÜV-certified cables paub txog lawv cov kev tsim kho thiab kev ua tau zoo nyob rau hauv kev nyuaj ib puag ncig.
2. Kev Tiv Thaiv Kev Tiv Thaiv
Kev txhim kho kom zoo yog qhov tseem ceeb rau kev ua kom lub neej ntev thiab ua haujlwm ntawm cov hnub ci cables. Kev teeb tsa tsis raug tuaj yeem ua rau hluav taws xob tsis ua haujlwm, kev nyab xeeb kev nyab xeeb, thiab lub neej luv dua rau lub hnub ci zog. Nov yog cov kev ceev faj tseem ceeb uas yuav tsum tau ua raws li:
2.1 Tsim nyog Cable Routing
Tsis txhob Sharp Khoov: Thaum routing solar cables, tsis txhob ntse khoov los yog twists, raws li qhov no yuav ua rau puas lub rwb thaiv tsev los yog conductor. Cables yuav tsum tau ua kom zoo thiab tsis muaj qhov nro. Nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov chaw tsim khoom tau pom zoo qhov tsawg kawg nkaus khoov vojvoog kom tsis txhob ua rau lub cable puas.
Kev tiv thaiv ntawm lub cev puas tsuaj: Xyuas kom tseeb tias cov cables tsis raug rau cov npoo ntse, cov ces kaum, lossis qhov chaw uas lawv tuaj yeem txiav tau yooj yim lossis abraded. Kev tiv thaiv kab mob los yog cov tais cable yuav raug siv los tiv thaiv cov kab hluav taws xob los ntawm kev puas tsuaj rau lub cev.
Tsis txhob overloading: Thaum routing solar cables, xyuas kom lawv tsis overloaded los ntawm cov hluav taws xob ntau dhau lawm. Overloading tuaj yeem ua rau cov cables overheat, uas tuaj yeem ua rau cov rwb thaiv tsev puas tsuaj thiab txawm ua rau hluav taws. Xyuas kom meej tias cov cable loj thiab kev ntaus nqi sib tw raws li qhov xav tau tam sim no thauj khoom.
2.2 Kev sib txuas ntawm Cable kom raug
Kev sib txuas ntawm cable tsis raug tuaj yeem ua rau hluav taws xob tsis raug, overheating, lossis hluav taws kub. Kev saib xyuas kom zoo yuav tsum tau ua thaum txiav cov hnub ci cables, tshwj xeeb tshaj yog thaum txuas cov cables rau cov khoom xws lihnub ci vaj huam sib luag, inverter, lossis roj teeb lub txhab nyiaj.
Siv cov khoom sib txuas tsim nyog: Ib txwm siv cov khoom sib txuas uas tsim tshwj xeeb rau cov hnub ci cables. Cov connectors no yuav tsum tau ntsuas rau kev siv sab nraum zoov thiab muaj peev xwm tuav tau qhov voltage thiab tam sim no ntawm lub system.
Waterproofing thiab sealing: Txhawm rau tiv thaiv cov kab hluav taws xob los ntawm kev ya raws, siv cov khoom siv dej tsis sib haum thiab cov thawv sib txuas uas raug kaw kom raug. Cov dej noo tuaj yeem ua rau corrosion ntawm cov conductors thiab connectors, uas ua rau lub cev tsis ua haujlwm.
Torque Settings: Rau connectors thiab terminals, ib txwm ua raws li cov kev pom zoo torque nqis kom tsis txhob xoob kev sib txuas. Kev sib txuas xoob tuaj yeem ua rau arcing thiab ua rau muaj kev pheej hmoo ntawm hluav taws.
2.3 Tsim nyog Cable Length
Cov kab hluav taws xob hnub ci yuav tsum raug txiav kom raug qhov ntev kom tsis txhob muaj kev sib tsoo ntau dhau, uas tuaj yeem ua rau tangling lossis raug rau qhov tsis tsim nyog hnav. Cov cables ntev kuj ntxiv rau qhov poob qis, txo qhov kev ua haujlwm ntawm lub cev.
Minimize Voltage poob: Hnub ci cables yuav tsum tau qhov loj me raws li qhov kev ncua deb ntawm lub hnub ci vaj huam sib luag mus rau lub inverter. Kev khiav dej num ntev dua yuav xav tau cov cables loj dua kom txo qis qhov hluav taws xob poob thiab tswj kev ua haujlwm zoo.
Kev suav Cable Length: Ua qhov ntsuas qhov ntsuas hluav taws xob raws li qhov ntev ntawm cable thiab cov khoom thauj tam sim no los txiav txim siab qhov tsim nyog cable loj rau kev teeb tsa.
2.4 Sab nraum zoov thiab Seaside Installation
Rau kev teeb tsa hauv thaj chaw ntug dej hiav txwv lossis ntug hiav txwv, yuav tsum tau ceev faj ntxiv vim qhov dej ntsev thiab huab cua ntsev:
Siv Marine-Qib Cables: Hauv thaj chaw ze ntawm dej hiav txwv lossis raug dej ntsev, yuav tsum tau siv cov kab hluav taws xob qib marine. Cov cables no tau tsim tshwj xeeb nrog kev txhim kho kev tiv thaiv corrosion thiab degradation los ntawm ntsev raug.
Txhim kho Cables los ntawm av: Yog tias ua tau, txhim kho cov kab hluav taws xob nce siab hauv av lossis faus rau hauv cov kav dej tiv thaiv kom tsis txhob muaj kev sib cuag ncaj qha nrog cov dej ntsev lossis dej noo.
Kev tshuaj xyuas tsis tu ncua: Nyob rau hauv ib cheeb tsam ntawm ntug hiav txwv dej, yuav tsum tau soj ntsuam cov hnub ci hluav taws xob tsis tu ncua los xyuas cov cim ntawm corrosion, hnav, lossis puas. Ua tib zoo saib xyuas thaj chaw uas cov cables tau raug dej hiav txwv lossis qhov chaw rwb thaiv tsev yuav tau degraded vim UV raug.
2.5 Kev Tiv Thaiv Kev Nyab Xeeb
Thaum kawg, kev nyab xeeb yog qhov tseem ceeb tshaj plaws thaum nruab hnub ci cables. Ua raws li cov lus qhia kev nyab xeeb hauv qab no:
Fais fab tuag qhov System: Ua ntej pib kev teeb tsa lossis kev saib xyuas ntawm cov hnub ci cables, xyuas kom meej tias lub kaw lus raug muab tua thiab de-energized. Qhov no yuav pab tiv thaiv hluav taws xob los yog luv luv Circuit Court thaum lub sij hawm installation.
Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE): Cov neeg tsim khoom yuav tsum hnav cov khoom tiv thaiv tus kheej tsim nyog, nrog rau cov hnab looj tes, tsom iav kev nyab xeeb, thiab cov cuab yeej insulated, kom txo qis kev pheej hmoo ntawm hluav taws xob.
Ua raws li Cov Cai Hauv Zos: Ib txwm ua raws li cov cai hluav taws xob hauv zos thiab cov kev cai kom ntseeg tau tias kev teeb tsa raug cai thiab nyab xeeb. Hauv ntau thaj tsam, cov kws tshaj lij kev teeb tsa yuav tsum tau tswj hwm lub hnub ci cable teeb tsa thiab lwm yam khoom siv hluav taws xob.
3. Post-Installation Testing and Maintenance
Thaum cov kab hluav taws xob hnub ci tau teeb tsa, nws yog ib qho tseem ceeb rau kev sim cov kab ke kom ntseeg tau tias nws ua haujlwm raug thiab ua tau zoo. Siv lub multimeter los yog megger los xyuas qhov txuas ntxiv thiab rwb thaiv tsev ntawm cov cables. Tej yam irregularities yuav tsum tau hais tam sim ntawd.