Xyoo 2020-11-23
Slocable TUV Hnub Ci Vaj Huam Sib Luag Cable 4MM 1500V
DC lub cev kab yog cov kab sib kis los ntawm photovoltaic module system mus rau inverter tom qab tau sib koom los ntawm lub thawv sib txuas.Yog hais tias lub inverter yog lub plawv ntawm tag nrho cov square array system, ces DC trunk kab system yog lub aorta.Vim tias DC lub cev kab hluav taws xob tau txais kev daws teeb meem tsis muaj av, yog tias lub cable muaj qhov txhaum hauv av, nws yuav ua rau muaj kev puas tsuaj ntau dua rau lub cev thiab txawm tias cov khoom siv ntau dua AC.Yog li ntawd, PV system engineers tau ceev faj txog DC trunk cables dua li lwm cov engineers hluav taws xob.
Xaiv qhov raugDC hnub ci cablerau qhov system photovoltaic ntsia hauv koj lub tsev lossis chaw ua haujlwm yog qhov tseem ceeb rau kev ua haujlwm thiab kev nyab xeeb.Lub hnub ci hluav taws xob muaj zog yog tsim los hloov lub hnub ci zog ntawm ib feem ntawm lub cev mus rau lwm qhov rau kev hloov mus rau hauv hluav taws xob hluav taws xob.Koj txhua hnub tooj liab hlau yuav ua haujlwm kom raug thiab tej zaum koj yuav xaus nrog qhov tsis ua haujlwm.
Kev tsom xam ntawm ntau yam xwm txheej cable, peb txiav txim siab tias cable hauv av faults account rau 90-95% ntawm tag nrho cable txhaum.Muaj peb lub ntsiab ua rau av txhaum.Ua ntej, cov khoom siv cable tsis raug yog cov khoom tsis tsim nyog;thib ob, qhov chaw ua haujlwm yog hnyav, ntuj aging, thiab puas los ntawm sab nraud rog;thib peb, kev teeb tsa tsis yog tus qauv thiab cov xov hlau tsis zoo.
Muaj tsuas yog ib qho hauv paus ua rau hauv av txhaum - cov khoom siv rwb thaiv tsev ntawm lub cable.Kev ua haujlwm ib puag ncig ntawm DC lub cev kab ntawm photovoltaic fais fab nroj tsuag yog qhov hnyav.Cov chaw nres tsheb loj hauv av feem ntau yog cov suab puam, av saline-alkali, nrog qhov kub thiab txias sib txawv thaum nruab hnub, thiab qhov chaw ntub dej heev.Rau faus cables, qhov yuav tsum tau ua kom tiav thiab khawb cov kab trenches yog qhov siab;thiab kev khiav hauj lwm ib puag ncig ntawm kev faib hluav taws xob chaw nres tsheb cables tsis zoo dua li hauv av.Cov cables yuav tiv taus kub heev, thiab lub ru tsev kub tuaj yeem ncav cuag 100-110 ℃.Cov hluav taws-pov thawj thiab nplaim hluav taws-retardant yuav tsum tau ntawm cov cable, thiab qhov kub thiab txias muaj kev cuam tshuam zoo rau lub rwb thaiv tsev tawg voltage ntawm cable.
Yog li ntawd, ua ntej txhim kho thiab khiav lub system, koj yuav tsum xyuas kom meej tias qhov luaj li cas ntawm lub hnub ci cable ntsia yog proportional rau tam sim no thiab voltage ntawm lub system.Nov yog qee qhov nta, uas yuav tsum tau kuaj xyuas ua ntej qhib lub kaw lus;
1. Xyuas kom meej tias qhov ntsuas hluav taws xob ntawm pv dc cable yog sib npaug los yog ntau tshaj qhov ntsuas hluav taws xob ntawm qhov system.
2. Xyuas kom meej tias lub peev xwm nqa tam sim no ntawm lub hnub ci cable yog sib npaug los yog ntau dua li lub peev xwm nqa tam sim no ntawm lub cev.
3. Nco ntsoov tias cov cables yog tuab thiab muaj kev tiv thaiv txaus los tiv thaiv ib puag ncig hauv koj cheeb tsam.
4. Txheeb xyuas qhov hluav taws xob poob kom muaj kev nyab xeeb.(Qhov voltage poob yuav tsum tsis pub tshaj 2%.)
5. Qhov kev tiv thaiv hluav taws xob ntawm photovoltaic DC cable yuav tsum siab tshaj qhov siab tshaj plaws ntawm qhov system.
Tsis tas li ntawd, kev xaiv thiab tsim ntawm PV DC trunk cables rau photovoltaic fais fab chaw nres tsheb yuav tsum tau xav txog: cov rwb thaiv tsev kev ua tau zoo ntawm lub cable;cov dej-pov thawj, txias-pov thawj thiab huab cua tsis kam ntawm cable;lub tshav kub-resistant thiab nplaim-retardant kev ua tau zoo ntawm lub cable;txoj kev tso ntawm kab;Cov khoom siv ntawm tus neeg xyuas pib ntawm lub cable (Copper core, aluminium alloy core, aluminium core) thiab cross-section specifications ntawm cable.
Slocable 6 hli Hnub Ci Hlau EN 50618
Feem ntau ntawm PV DC cables tau muab tso rau sab nraum zoov thiab yuav tsum tau tiv thaiv los ntawm noo noo, tshav ntuj, txias, thiab ultraviolet.Yog li ntawd, DC cables hauv cov tshuab hluav taws xob faib hluav taws xob feem ntau xaiv cov xov tooj hluav taws xob tshwj xeeb uas muaj ntawv pov thawj, suav nrog cov zis tam sim no ntawm DC connectors thiab photovoltaic modules.Tam sim no, feem ntau siv photovoltaic DC cables yog PV1-F 1 * 4mm specifications.
Lub thickness ntawm lub hnub ci cable koj xaiv rau lub system nyob ntawm qhov voltage ntawm lub system.Qhov siab dua qhov system voltage, lub thinner lub cable, vim hais tias DC tam sim no yuav poob.Xaiv lub inverter loj los ua kom qhov system voltage.
Kev poob hluav taws xob hauv lub tshuab hluav taws xob photovoltaic tuaj yeem ua tau raws li: voltage poob = dhau tam sim no * cable ntev * voltage yam.Nws tuaj yeem pom los ntawm cov qauv uas qhov kev poob qis yog proportional rau qhov ntev ntawm lub cable.Yog li ntawd, lub hauv paus ntsiab lus ntawm array rau inverter thiab inverter rau parallel point yuav tsum tau ua raws li thaum tshawb nrhiav ntawm qhov chaw.Feem ntau, DC kab poob ntawm photovoltaic array thiab inverter yuav tsum tsis pub tshaj 5% ntawm cov zis voltage ntawm array, thiab AC kab poob ntawm lub inverter thiab parallel point yuav tsum tsis txhob ntau tshaj 2% ntawm cov zis voltage ntawm lub inverter.Cov mis empirical tuaj yeem siv rau hauv cov txheej txheem ntawm daim ntawv thov engineering:△U = (I*L*2)/(r*S)
Ntawm lawv △U: cable voltage poob -V
I: Lub cable yuav tsum tiv taus qhov siab tshaj plaws cable-A
L: Ntev ntawm cable tso -m
S: qhov chaw hla ntawm kab-mm²
r: conductivity ntawm tus neeg xyuas pib-m / (Ω * mm²), r tooj liab = 57, r aluminium = 34
Ua ntej yuav, thov xyuas qhov ntsuas tam sim no ntawm lub hnub ci cable.Rau kev sib txuas ntawm inverter, xaiv pv dc cable ntsuas tam sim no yog 1.25 npaug ntawm qhov siab tshaj plaws txuas ntxiv tam sim no hauv kev suav cable.Thaum rau kev sib txuas ntawm sab hauv ntawm lub photovoltaic array thiab nruab nrab ntawm cov array, xaiv pv dc cable ntsuas tam sim no yog 1.56 npaug ntawm qhov siab tshaj plaws txuas ntxiv tam sim no hauv kev suav cable.Txhua tus neeg tsim khoom, xws liSlocable, tau luam tawm ib lub rooj teev cov kev ntsuam xyuas tam sim no ntawm cov cables tsim raws li lawv qhov loj thiab hom.Nco ntsoov xaiv qhov loj me me, vim tias cov xaim me me dhau tuaj yeem ua kom sov sai sai thiab tseem raug kev txom nyem qhov poob qis, uas yuav ua rau lub zog poob.
solar cable datasheet
Qhov ntev ntawm lub cable kuj yog ib qho tseem ceeb uas yuav tsum tau xav txog thaum xaiv qhov tseeb cable rau lub hnub ci.Feem ntau, qhov ntev ntawm cov hlau, qhov zoo dua qhov kev sib kis tam sim no.Tab sis nws yog qhov zoo tshaj plaws los siv cov cai yooj yim ntawm tus ntiv tes xoo los xam cov xaim ntev raws li qhov muaj peev xwm tam sim no ntawm lub kaw lus.
Tam sim no / 3 = cable loj (mm2)
Siv cov qauv no, koj tuaj yeem tau txais qhov tseeb tshaj plaws thiab tsim nyog qhov system cable loj thiab zam txhua yam xwm txheej lossis kev ua tsis tiav.
Cov txheej txheej insulating (sheath) ntawm cov khoom tsim nyog yog mos, yoog raws thiab hloov tau, thiab txheej txheej txheej yog nruj, du, tsis muaj roughness, thiab muaj ntshiab gloss.Qhov saum npoo ntawm txheej insulating (sheath) yuav tsum yog qhov tseeb thiab khawb-resistant Mark, cov khoom ua los ntawm cov ntaub ntawv insulating tsis zoo, cov txheej insulating zoo li pob tshab, nkig, thiab tsis tawv.
Cov kab hluav taws xob tsis tu ncua yuav raug cim nrog cov kab hluav taws xob photovoltaic.Kos cov cables tshwj xeeb rau photovoltaics, thiab cov tawv nqaij sab nraud ntawm cov cables raug cim nrog PV1-F1 * 4mm.
Lub teb chaws tus qauv muaj cov ntaub ntawv meej meej ntawm qhov thinnest point ntawm uniformity ntawm hlau rwb thaiv tsev txheej thiab qhov nruab nrab thickness.Lub thickness ntawm lub rwb thaiv tsev tsis tu ncua yog zoo ib yam, tsis eccentric, thiab nruj nreem nyem rau ntawm tus neeg xyuas pib.
Nws yog cov tub ntxhais hlau uas tsim los ntawm cov khoom siv tooj liab ntshiab thiab raug nruj hlau kos duab, annealing (softening), thiab stranding.Nws nto yuav tsum ci, du, tsis muaj burrs, thiab stranding nruj yog tiaj, mos thiab tawv, thiab tsis yooj yim rau tawg.Qhov zoo tib yam cable core yog ntshav-liab tooj liab hlau.Lub hauv paus ntawm lub photovoltaic cable yog nyiaj, thiab qhov hla ntawm cov tub ntxhais tseem yog tooj liab hlau liab.
Tus neeg xyuas pib yog ci, thiab tus neeg xyuas pib loj raws li tus qauv yuav tsum tau ua.Cov khoom siv hlau thiab cable uas ua tau raws li qhov yuav tsum tau ua ntawm tus qauv, txawm tias lawv yog txhuas lossis tooj liab conductors, yog qhov ci thiab tsis muaj roj, yog li DC tsis kam ntawm tus neeg xyuas pib ua tau raws li tus qauv, muaj kev ua haujlwm zoo thiab kev ua haujlwm siab.
Daim ntawv pov thawj cov khoom lag luam yuav tsum qhia lub npe ntawm cov chaw tsim khoom, chaw nyob, xov tooj tom qab muag, qauv, cov qauv kev qhia tshwj xeeb, ntu nominal (feem ntau 2.5 square, 4 square xaim, thiab lwm yam), rated voltage (ib leeg-core hlau 450 / 750V , ob-core tiv thaiv sheath cable 300/500V), ntev (lub teb chaws tus qauv qhia tias qhov ntev yog 100M ± 0.5M), cov neeg ua haujlwm tshuaj xyuas tus lej, hnub tsim khoom, thiab cov khoom lag luam lub teb chaws tus lej lossis daim ntawv pov thawj.Tshwj xeeb, tus qauv ntawm ib leeg-ntxhais tooj liab tub ntxhais yas xaim cim rau ntawm cov khoom tsis tu ncua yog 227 IEC01 (BV), tsis yog BV.Thov xyuam xim rau tus neeg yuav khoom.
Raws li cov khoom lag luam cuam tshuam rau tib neeg thiab cov khoom ntiag tug, cov cables yeej ib txwm tau teev tseg raws li qhov tseem ceeb ntawm tsoomfwv saib xyuas thiab tshuaj xyuas.Cov tuam txhab lag luam tsis tu ncua yuav raug tshuaj xyuas los ntawm lub tuam tsev saib xyuas raws sij hawm.Yog li ntawd, tus neeg muag khoom yuav tsum muaj peev xwm muab cov ntaub ntawv soj ntsuam ntawm lub chaw soj ntsuam zoo, txwv tsis pub, qhov zoo ntawm cov khoom siv hlau thiab cable tsis muaj lub hauv paus.
Tsis tas li ntawd, txhawm rau txiav txim siab seb nws puas yog hluav taws xob hluav taws xob thiab hluav taws xob hluav taws xob, txoj hauv kev zoo dua yog txiav tawm ib ntu thiab ignite nws.Yog hais tias nws ignites thiab burns spontaneously sai sai, nws yog obviously tsis yog ib tug nplaim hluav taws xob cable.Yog hais tias nws siv sij hawm ntev rau ignite, ib zaug nws tawm ntawm qhov hluav taws kub, nws yuav tua nws tus kheej, thiab tsis muaj pungent tsw, qhia tau hais tias nws yog ib tug nplaim hluav taws xob cable (nplaim-retardant cable tsis tag unignitable, nws yog ib qho nyuaj. mus ignite).Thaum nws kub hnyiab tau ntev, lub irradiated cable yuav muaj lub suab me me, thaum lub unirradiated cable tsis.Yog hais tias nws kub hnyiab tau ntev, lub insulating nto sheath yuav poob tawm tiag, thiab txoj kab uas hla tsis tau nce ntau, qhia tau hais tias cov hluav taws xob sib txuas kev kho mob tsis tau ua.
Thiab muab cov tub ntxhais cable tso rau hauv 90 degree dej kub, rwb thaiv tsev tsis kam ntawm cov irradiated tiag tiag cable yuav tsis poob sai nyob rau hauv ib txwm mob, thiab nws yuav nyob twj ywm siab tshaj 0.1 megohm / km.Yog hais tias qhov kev tiv thaiv poob sai heev los yog txawm qis dua 0.009 megohm ib kilometer, lub cable tsis tau hla-txuas thiab irradiated.
Thaum kawg, qhov cuam tshuam ntawm qhov kub thiab txias ntawm kev ua haujlwm ntawm photovoltaic dc cables yuav tsum tau xav txog.Qhov kub siab dua, qhov qis dua tam sim no-nqa lub peev xwm ntawm lub cable.Lub cable yuav tsum tau muab ntsia rau hauv qhov chaw ventilated kom deb li deb tau.
Slocable Cable Hnub Ci 10mm2 H1Z2Z2-K
Yog li xaiv qhov loj ntawm cov hlau zoo rau koj lub hnub ci yog qhov tseem ceeb rau kev ua haujlwm thiab kev nyab xeeb vim li cas.Yog tias cov xov hlau tsis zoo, yuav muaj qhov poob qis hauv cov xov hlau uas ua rau lub zog poob ntau dhau.Tsis tas li ntawd, yog tias cov xov hlau tsis zoo, muaj kev pheej hmoo tias cov xaim hluav taws xob tuaj yeem ua kom sov mus txog qhov uas ua rau muaj hluav taws kub.
Tam sim no tsim los ntawm cov hnub ci vaj huam sib luag yuav tsum ncav cuag lub roj teeb nrog tsawg kawg nkaus poob.Txhua lub cable muaj nws tus kheej Ohmic tsis kam.Qhov voltage poob vim qhov tsis kam yog raws li Ohm txoj cai:
V = I x R (Ntawm no V yog qhov hluav taws xob poob hla lub cable, R yog qhov tsis kam thiab kuv yog qhov tam sim no).
Qhov tsis kam (R) ntawm cable nyob ntawm peb qhov tsis muaj:
1. Cable Length: Lub cable ntev dua, ntau dua yog qhov kev tiv thaiv ntau dua
2. Cable Cross-section Area: Loj dua qhov chaw, qhov me me yog qhov tsis kam
3. Cov khoom siv: tooj liab lossis txhuas.Copper muaj kev tiv thaiv tsawg dua piv rau Aluminium
Hauv daim ntawv thov no, tooj liab cable yog qhov zoo dua.Cov xov tooj tooj liab yog qhov loj siv qhov ntsuas ntsuas: American Wire Gauge (AWG).Qhov qis dua tus lej ntsuas, qhov kev tiv thaiv tsawg dua cov hlau muaj thiab yog li qhov siab dua tam sim no nws tuaj yeem ua tau zoo.
1. Lub teb lub zog thiab kev ntxhov siab ntawm AC cables yog sib npaug.Cov khoom siv rwb thaiv tsev cable tsom rau qhov dielectric tas li, uas tsis cuam tshuam los ntawm qhov kub thiab txias;thaum lub sij hawm kev ntxhov siab ntawm DC cables yog lub siab tshaj plaws rwb thaiv tsev txheej ntawm lub cable, uas yog cuam tshuam los ntawm cov tsis kam ntawm cov ntaub ntawv rwb thaiv tsev cable.Kev cuam tshuam ntawm cov coefficient, cov khoom siv rwb thaiv tsev muaj qhov tsis zoo ntawm qhov kub thiab txias coefficient tshwm sim, uas yog, qhov kub thiab txias tuaj yeem txo qis;
Thaum lub cable ua haujlwm, qhov poob ntawm cov tub ntxhais yuav ua rau qhov kub thiab txias, thiab cov hluav taws xob tiv thaiv ntawm cov khoom siv insulating ntawm lub cable yuav hloov raws li, uas tseem yuav ua rau lub zog hluav taws xob ntawm cov txheej insulating hloov raws li.Hauv lwm lo lus, txheej insulating ntawm tib lub thickness yuav hloov vim qhov kub thiab txias.Raws li nws nce, nws tawg voltage txo raws li.Rau DC lub cev kab ntawm qee qhov chaw nres tsheb fais fab, vim qhov kev hloov pauv ntawm qhov ntsuas kub, cov khoom siv rwb thaiv tsev ntawm cov cable muaj hnub nyoog sai dua li cov cables tso rau hauv av.Cov ntsiab lus no yuav tsum tau them nyiaj tshwj xeeb rau.
2. Thaum lub sij hawm tsim cov txheej txheem ntawm cov rwb thaiv tsev cable, qee qhov impurities yuav inevitably yuav yaj.Lawv muaj cov rwb thaiv tsev me me, thiab lawv qhov kev faib tawm raws li radial kev taw qhia ntawm cov txheej rwb thaiv tsev tsis sib xws, uas yuav ua rau muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv.Nyob rau hauv lub DC voltage, hluav taws xob teb ntawm lub cable rwb thaiv tsev txheej kuj yuav txawv.Nyob rau hauv txoj kev no, lub rwb thaiv tsev ntim resistivity yuav muaj hnub nyoog sai dua thiab dhau los ua thawj qhov kev phom sij ntawm kev puas tsuaj.
AC cable tsis muaj qhov tshwm sim no.Feem ntau, qhov kev ntxhov siab thiab kev cuam tshuam ntawm AC cable khoom yog sib npaug tag nrho, thaum lub zog rwb thaiv tsev ntawm DC lub cev cable yog ib txwm cuam tshuam rau qhov tsis muaj zog tshaj plaws.Yog li ntawd, AC thiab DC cables nyob rau hauv cov txheej txheem tsim cable yuav tsum muaj kev tswj thiab cov qauv sib txawv.
3. Hla-txuas polyethylene insulated cables tau dav siv hauv AC cables.Lawv muaj cov khoom dielectric zoo heev thiab lub cev muaj zog, thiab muaj txiaj ntsig zoo heev.Txawm li cas los xij, raws li DC cables, lawv muaj qhov chaw them nqi teeb meem uas nyuaj los daws.Nws muaj nuj nqis heev hauv high voltage DC cables.
Thaum cov polymer yog siv rau DC cable rwb thaiv tsev, muaj ntau lub zos ntxiab nyob rau hauv lub rwb thaiv tsev txheej, uas ua rau cov tsub zuj zuj ntawm qhov chaw nyob rau hauv lub rwb thaiv tsev.Qhov cuam tshuam ntawm qhov chaw them nqi ntawm cov khoom siv insulating feem ntau yog tshwm sim nyob rau hauv ob yam ntawm hluav taws xob teb distortion nyhuv thiab tsis yog hluav taws xob teb distortion nyhuv.Qhov cuam tshuam yog teeb meem heev rau cov ntaub ntawv insulating.
Qhov chaw them nqi yog hais txog ib feem ntawm tus nqi uas tshaj qhov nruab nrab ntawm ib chav tsev ntawm cov khoom macroscopic.Nyob rau hauv ib qho khoom, qhov zoo lossis qhov tsis zoo ntawm qhov chaw them nqi yog khi rau qee lub zog hauv zos thiab muab rau hauv daim ntawv ntawm cov polaron xeev.Polarization nyhuv.Qhov chaw hu ua polarization yog cov txheej txheem ntawm accumulating tsis zoo ions ntawm lub interface ntawm lub zoo electrode sab thiab zoo ions nyob rau hauv lub interface ntawm qhov tsis zoo electrode sab vim ion zog thaum dawb ions muaj nyob rau hauv lub dielectric.
Nyob rau hauv AC hluav taws xob teb, kev tsiv teb tsaws ntawm qhov zoo thiab qhov tsis zoo ntawm cov khoom siv tsis tuaj yeem ua raws li cov kev hloov pauv sai hauv lub zog hluav taws xob zaus, yog li qhov chaw them nqi yuav tsis tshwm sim;Thaum nyob rau hauv DC hluav taws xob teb, hluav taws xob teb yog faib raws li qhov resistivity, uas yuav tsim qhov chaw tsub nqi thiab cuam tshuam rau hluav taws xob teb tis.Muaj ntau lub xeev hauv cheeb tsam hauv cov rwb thaiv tsev polyethylene, thiab qhov chaw them nqi yog qhov tshwj xeeb.Tus ntoo khaub lig-txuas Polyethylene rwb thaiv tsev txheej yog chivically hla-txuas thiab yog ib qho qauv sib txuas.Nws yog ib qho tsis muaj polar polymer.Los ntawm kev xav ntawm tag nrho cov qauv ntawm lub cable, lub cable nws tus kheej zoo li lub capacitor loj.Tom qab DC kis tau tus mob nres, Nws yog sib npaug rau kev ua tiav ntawm kev them nyiaj rau lub capacitor.Txawm hais tias tus neeg xyuas pib core yog grounded, nws tsis tuaj yeem tawm tau zoo.Ib tug loj npaum li cas ntawm DC fais fab tuag tseem muaj nyob rau hauv lub cable, uas yog hu ua qhov chaw them nqi.Qhov chaw them nqi no tsis zoo li AC fais fab.Lub cable yog noj nrog lub dielectric poob, tab sis yog enriched ntawm lub cable tsis xws luag;tus ntoo khaub lig-txuas polyethylene insulated cable, nrog rau kev txuas ntxiv ntawm kev siv lub sijhawm lossis kev cuam tshuam tsis tu ncua thiab kev hloov pauv ntawm lub zog tam sim no, nws yuav khaws ntau thiab ntau qhov chaw nqi.Ua kom muaj kev laus nrawm ntawm txheej txheej insulating, yog li cuam tshuam rau lub neej kev pabcuam.Yog li ntawd, kev rwb thaiv tsev ntawm DC lub cev cable tseem txawv ntawm AC cable.
Dongguan Slocable Photovoltaic Technology Co., Ltd.
Ntxiv: Guangda Manufacturing Hongmei Science thiab Technology Park, No. 9-2, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, Suav teb
TEL: 0769-22010201
