Nyob rau hauv xyoo tas los no, thev naus laus zis ntawm kev lag luam photovoltaic tau tsim sai thiab nrawm dua, lub zog ntawm cov khoom siv ib leeg tau dhau los ua qhov loj thiab loj dua, cov hlua tam sim no kuj tau loj dua thiab loj dua, thiab tam sim no ntawm cov khoom siv hluav taws xob muaj zog tau mus txog ntau dua. 17 A.
Nyob rau hauv cov nqe lus ntawm kev tsim qauv, kev siv cov khoom siv hluav taws xob siab thiab tsim nyog tshaj qhov sib tw tuaj yeem txo tus nqi peev thiab tus nqi ib kilowatt-teev ntawm qhov system.
Tus nqi ntawm AC thiab DC cables nyob rau hauv qhov system account rau ib tug loj feem.Yuav ua li cas tsim thiab xaiv yuav raug txo kom txo tau cov nqi?
Kev xaiv ntawm DC cables
DC cables raug ntsia sab nraum zoov.Nws yog feem ntau pom zoo kom xaiv irradiated thiab cross-linked photovoltaic cables tshwj xeeb.
Tom qab high-zog electron beam irradiation, cov qauv molecular ntawm rwb thaiv tsev cov ntaub ntawv ntawm lub cable hloov los ntawm linear mus rau peb-dimensional mesh molecular qauv, thiab kub kuj theem nce los ntawm tsis-cross-linked 70 ℃ to 90 ℃, 105 ℃. , 125 ℃ , 135 ℃ , thiab txawm 150 ℃ , uas yog 15-50% siab tshaj qhov tam sim no nqa peev xwm ntawm cables ntawm tib yam specifications.
Nws tuaj yeem tiv taus qhov kub thiab txias hloov thiab kev yaig tshuaj lom neeg thiab tuaj yeem siv sab nraum zoov rau ntau tshaj 25 xyoo.
Thaum xaiv DC cables, koj yuav tsum xaiv cov khoom lag luam nrog cov ntawv pov thawj cuam tshuam los ntawm cov tuam txhab lag luam niaj hnub kom ntseeg tau tias siv sab nraum zoov mus ntev.
Qhov feem ntau siv photovoltaic DC cable yog PV1-F 1 * 4 4 square cable.Txawm li cas los xij, nrog kev nce ntawm photovoltaic module tam sim no thiab nce ntawm ib lub zog inverter, qhov ntev ntawm DC cable kuj nce, thiab daim ntawv thov ntawm 6 square DC cable kuj nce.
Raws li cov lus qhia tshwj xeeb, nws feem ntau pom zoo tias qhov poob ntawm photovoltaic DC yuav tsum tsis pub tshaj 2%.Peb siv tus qauv no los tsim kev xaiv DC cable.
Cov kab tsis kam ntawm PV1-F 1 * 4mm2 DC cable yog 4.6mΩ / meter, thiab kab tsis kam ntawm PV 6mm2 DC cable yog 3.1mΩ / meter.Piv txwv tias qhov ua haujlwm voltage ntawm DC module yog 600V, qhov poob qis ntawm 2% yog 12V.
Piv txwv tias lub module tam sim no yog 13A, siv 4mm2 DC cable, qhov kev ncua deb ntawm qhov kawg ntawm lub module mus rau lub inverter yog pom zoo kom tsis txhob tshaj 120 meters (ib txoj hlua, tsis suav nrog zoo thiab tsis zoo ncej).
Yog tias nws siab dua qhov kev ncua deb, nws raug pom zoo kom xaiv 6mm2 DC cable, tab sis nws raug pom zoo tias qhov kev ncua deb ntawm qhov kawg ntawm qhov module mus rau inverter yog tsis ntau tshaj 170 meters.
Kev xaiv ntawm AC cables
Txhawm rau txo cov nqi hluav taws xob, cov khoom siv thiab cov inverters ntawm photovoltaic fais fab chaw nres tsheb tsis tshua muaj teeb tsa hauv qhov sib piv 1: 1.Hloov chaw, qee qhov kev sib tw ntau dhau yog tsim los ntawm cov teeb pom kev zoo, qhov project xav tau, thiab lwm yam.
Piv txwv li, rau 110KW tivthaiv, 100KW inverter raug xaiv.Raws li 1.1 npaug tshaj qhov sib piv ntawm AC sab ntawm lub inverter, qhov siab tshaj plaws AC tso zis tam sim no yog li 158A.
Kev xaiv ntawm AC cables tuaj yeem txiav txim siab raws li qhov siab tshaj tawm tam sim no ntawm inverter.Vim tias tsis muaj teeb meem ntau npaum li cas cov khoom sib xyaw ua ke, qhov tam sim no ntawm inverter AC input yuav tsis dhau qhov siab tshaj plaws tso zis tam sim no ntawm inverter.
Feem ntau siv photovoltaic system AC tooj liab cables suav nrog BVR thiab YJV thiab lwm yam qauv.BVR txhais tau tias tooj liab tub ntxhais polyvinyl chloride insulated mos hlau, YJV cross-linked polyethylene insulated fais fab cable.
Thaum xaiv, xyuam xim rau qib voltage thiab kub theem ntawm cable.Xaiv hom nplaim-retardant.Cable specifications qhia los ntawm cov tub ntxhais tooj, nominal cross-section thiab voltage theem: ib leeg-core ceg cable specification qhia, 1 * nominal cross-section, xws li: 1 * 25mm 0.6 / 1kV, qhia ib tug 25 square cable.
Specifications ntawm multi-core twisted ceg cables: tus naj npawb ntawm cables nyob rau hauv tib lub voj * nominal cross-section, xws li: 3 * 50 + 2 * 25mm 0.6 / 1KV, qhia 3 50 square nyob hlau, ib tug 25 square nruab nrab hlau thiab ib 25 square ground wire.
Dab tsi yog qhov txawv ntawm ib leeg-core cable thiab multi-core cable?
Ib leeg-ntxhais cable hais txog ib lub cable nrog tsuas yog ib tus neeg xyuas pib hauv txheej rwb thaiv tsev.Multi-core cable yog hais txog ib lub cable uas muaj ntau tshaj ib tug tub ntxhais insulated.Nyob rau hauv cov nqe lus ntawm rwb thaiv tsev kev ua tau zoo, ob leeg ib leeg-core thiab multi-core cables yuav tsum tau raws li lub teb chaws tus qauv.
Qhov sib txawv ntawm ntau cov tub ntxhais cable thiab ib leeg-core cable yog tias ib leeg-core cable yog ncaj qha hauv av ntawm ob qho kawg, thiab cov hlau thaiv txheej ntawm lub cable kuj tseem tuaj yeem tsim cov circulating tam sim no, ua rau poob;
Multi-core cable feem ntau yog peb-core cable, vim tias thaum lub sijhawm ua haujlwm cable, cov txiaj ntsig ntawm cov dej ntws los ntawm peb lub cores yog xoom, thiab tsis muaj qhov cuam tshuam ntawm ob qho kawg ntawm cable hlau thaiv txheej.
Los ntawm qhov kev xav ntawm lub peev xwm ntawm Circuit Court, rau ib leeg-ntxhais thiab ntau-ntxhais cables, qhov ntsuas tam sim no nqa lub peev xwm ntawm ib leeg-core cables ntau dua li ntawm peb-core cables rau tib ntu ntu;
Lub tshav kub dissipation kev ua tau zoo ntawm ib leeg-core cables yog ntau dua li ntawm ntau cov tub ntxhais cables.Nyob rau hauv tib lub load los yog luv luv Circuit Court tej yam kev mob, lub tshav kub generated los ntawm ib tug tub ntxhais cables yog tsawg tshaj li ntawm multi-core cables, uas muaj kev ruaj ntseg dua;
Los ntawm qhov kev xav ntawm kev tso cable, ntau cov tub ntxhais cables yooj yim rau nteg, thiab cov cables nrog sab hauv thiab ntau txheej ob txheej tiv thaiv muaj kev nyab xeeb dua;single-core cables yog yooj yim dua rau khoov thaum lub sij hawm tso, tab sis qhov nyuaj ntawm nteg nyob rau hauv ntev kev deb yog ntau dua rau ib tug tub ntxhais cables ntau dua li cov tub ntxhais cables.
Los ntawm kev xav ntawm cable taub hau installation, ib leeg-core cable taub hau yog yooj yim rau nruab thiab yooj yim rau kev faib kab.Nyob rau hauv cov nqe lus ntawm tus nqi, chav tsev nqi ntawm multi-core cables yog me ntsis siab dua li ntawm ib tug tub ntxhais cables.
Photovoltaic system thaiv kev txawj ntse
Cov kab ntawm photovoltaic system tau muab faib ua DC thiab AC qhov chaw.Ob qhov no yuav tsum tau xaim nyias.DC ib feem yog txuas nrog cov khoom, thiab AC ib feem yog txuas nrog rau daim phiaj fais fab.
Muaj ntau ntau DC cables hauv nruab nrab thiab loj fais fab chaw nres tsheb.Txhawm rau pab txhawb kev txij nkawm yav tom ntej, kab xov tooj ntawm txhua lub cable yuav tsum tau txuas nrog.Cov kab hluav taws xob uas muaj zog thiab tsis muaj zog tau sib cais.Yog tias muaj cov kab teeb liab, xws li 485 kev sib txuas lus, lawv yuav tsum tau sib cais kom tsis txhob cuam tshuam.
Thaum txuas cov xov hlau, npaj cov kav dej thiab cov txuas hniav.Sim tsis txhob nthuav tawm cov xov hlau.Nws yuav zoo dua yog tias cov xov hlau raug xaim horizontally thiab vertically.Sim tsis txhob muaj cov kab sib txuas hauv cov kav dej thiab cov txuas hniav vim lawv tsis yooj yim rau kev tswj xyuas.Yog tias cov xov hlau txhuas hloov tooj liab, txhim khu kev qha tooj liab-aluminium adapters yuav tsum tau siv.
Nyob rau hauv tag nrho cov photovoltaic system, cables yog ib qho tseem ceeb heev tivthaiv, thiab lawv cov nqi koom nyob rau hauv lub system yog nce.Thaum peb tsim lub chaw nres tsheb fais fab, peb yuav tsum tau txuag cov nqi hluav taws xob ntau li ntau tau thaum ua kom ntseeg tau qhov kev ua haujlwm ntawm lub chaw nres tsheb fais fab.
Yog li ntawd, kev tsim thiab xaiv ntawm AC thiab DC cables rau cov tshuab photovoltaic yog qhov tseem ceeb tshwj xeeb.
Thov koj xav tiv tauj peb kom paub ntxiv txog cov hnub ci cables.
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Post lub sij hawm: Jun-17-2024
