Vim li cas kev ua haujlwm ntawm photovoltaic cables tseem ceeb?Cov kab hluav taws xob photovoltaic feem ntau raug tshav ntuj, thiab lub hnub ci hluav taws xob feem ntau siv nyob rau hauv ib puag ncig hnyav, xws li kub kub thiab hluav taws xob ultraviolet.Hauv Tebchaws Europe, hnub ci hnub ci yuav ua rau qhov kub ntawm qhov chaw ntawm lub hnub ci zog mus txog 100 ° C.
Tam sim no, ntau yam ntaub ntawv uas peb tuaj yeem siv tau suav nrog PVC, roj hmab, TPE thiab cov khoom siv sib txuas zoo, tab sis hmoov tsis, cov roj hmab cables ntsuas ntawm 90 ° C thiab txawm tias PVC cables nyob ntawm 70 ° C feem ntau siv sab nraum zoov.Yuav kom txuag tau tus nqi, ntau tus neeg cog lus tsis xaiv cov cables tshwj xeeb rau lub hnub ci zog, tab sis xaiv cov PVC zoo tib yam los hloov cov kab hluav taws xob photovoltaic.Obviously, qhov no yuav cuam tshuam rau lub neej kev pab cuam ntawm lub system.
Cov yam ntxwv ntawm photovoltaic cables yog txiav txim los ntawm lawv tshwj xeeb cable rwb thaiv tsev thiab sheath ntaub ntawv, uas peb hu ua cross-linked PE.Tom qab irradiation los ntawm irradiation accelerator, cov qauv molecular ntawm cov khoom siv cable yuav hloov, yog li muab nws ntau yam kev ua tau zoo.
Kev tiv thaiv rau cov khoom siv kho tshuab Qhov tseeb, thaum lub sij hawm installation thiab txij nkawm, cables tuaj yeem raug xa mus rau ntawm cov npoo ntse ntawm lub ru tsev, thiab cov cables yuav tsum tiv taus siab, dabtsi yog khoov, nro, hla-nruj loads thiab muaj zog cuam tshuam.Yog hais tias lub cable sheath tsis muaj zog txaus, txheej rwb thaiv tsev cable yuav raug puas tsuaj, yog li cuam tshuam rau lub neej kev pab cuam ntawm tag nrho cov cable, los yog ua rau muaj teeb meem xws li luv luv Circuit Court, hluav taws kub thiab tus kheej raug mob.
Kev ua haujlwm ntawm photovoltaic cables
Cov khoom hluav taws xob
DC tsis kam
DC tsis kam ntawm cov tub ntxhais conductive ntawm cov khoom tiav ntawm 20 ℃ tsis ntau dua 5.09Ω / km.
Kev ntsuas dej immersion voltage
Lub cable tiav lawm (20m) yog raus rau hauv (20 ± 5) ℃ dej rau 1h thiab tom qab ntawd kuaj rau 5min voltage (AC 6.5kV lossis DC 15kV) yam tsis muaj kev puas tsuaj.
Lub sij hawm ntev DC voltage kuj
Cov qauv yog 5m ntev thiab muab tso rau hauv (85 ± 2) ℃ distilled dej uas muaj 3% sodium chloride (NaCl) rau (240 ± 2) h, nrog rau ob qho tib si xaus rau cov dej nto rau 30cm.Ib qho hluav taws xob DC ntawm 0.9kV yog siv nruab nrab ntawm cov tub ntxhais thiab cov dej (cov tub ntxhais conductive txuas nrog tus ncej zoo thiab cov dej txuas nrog cov ncej tsis zoo).Tom qab nqa tawm cov qauv, ib qho kev ntsuas dej immersion voltage yog nqa tawm.Qhov ntsuas hluav taws xob yog AC 1kV, thiab tsis tas yuav tsum tau tawg.
Rwb thaiv tsev tsis kam
Kev rwb thaiv tsev ntawm cov kab tiav ntawm 20 ℃ tsis tsawg dua 1014Ω˙cm, thiab cov rwb thaiv tsev tiv thaiv ntawm 90 ℃ tsis tsawg dua 1011Ω˙cm.
Sheath nto kuj
Qhov kev tiv thaiv nto ntawm lub tiav cable sheath yuav tsum tsis pub tsawg tshaj 109Ω.
Lwm yam khoom
Kev ntsuas kub siab (GB / T 2951.31-2008)
Kub (140 ± 3) ℃, lub sij hawm 240min, k = 0.6, qhov tob indentation tsis tshaj 50% ntawm tag nrho cov thickness ntawm rwb thaiv tsev thiab sheath.Thiab AC6.5kV, 5min voltage test yog nqa tawm, thiab tsis tas yuav tsum tau tawg.
Kev ntsuas kub ntub dej
Cov qauv yog muab tso rau hauv ib puag ncig nrog qhov kub ntawm 90 ℃ thiab qhov txheeb ze av noo ntawm 85% rau 1000h.Tom qab txias rau chav tsev kub, qhov kev hloov pauv ntawm lub zog tensile yog ≤-30% thiab qhov kev hloov pauv ntawm elongation ntawm kev so yog ≤-30% piv nrog ua ntej kev xeem.
Acid thiab alkali tshuaj tiv thaiv kev ntsuas (GB / T 2951.21-2008)
Ob pawg ntawm cov qauv tau muab tso rau hauv oxalic acid tov nrog ib qho concentration ntawm 45g / L thiab sodium hydroxide tov nrog ib tug concentration ntawm 40g / L, raws li, ntawm qhov kub ntawm 23 ℃ rau 168h.Piv nrog rau ua ntej immersion nyob rau hauv cov tshuaj, qhov kev hloov ntawm tensile lub zog yog ≤ ± 30%, thiab elongation ntawm so yog ≥100%.
Compatibility xeem
Tom qab lub cable muaj hnub nyoog rau 7 × 24h ntawm (135 ± 2) ℃, qhov hloov pauv ntawm tensile lub zog ua ntej thiab tom qab rwb thaiv tsev laus yog ≤ ± 30%, thiab qhov kev hloov pauv ntawm elongation ntawm so yog ≤ ± 30%;Qhov kev hloov pauv ntawm lub zog tensile ua ntej thiab tom qab kev laus ntawm cov sheath yog ≤-30%, thiab qhov hloov pauv ntawm elongation ntawm kev tawg yog ≤ ± 30%.
Kev ntsuas kub tsawg (8.5 hauv GB / T 2951.14-2008)
Txias kub -40 ℃, sij hawm 16h, poob yuag 1000g, cuam tshuam thaiv pawg 200g, poob siab 100 hli, tsis pom cov kab nrib pleb ntawm qhov chaw.
Kev ntsuas kub qis qis (8.2 hauv GB / T 2951.14-2008)
Txias kub (-40 ± 2) ℃, lub sij hawm 16h, xeem pas nrig txoj kab uas hla 4 ~ 5 npaug ntawm sab kab ntawm lub cable, 3 ~ 4 lem, tsis pom cov kab nrib pleb ntawm lub sheath nto tom qab kuaj.
Ozone resistance test
Cov qauv ntev yog 20cm thiab muab tso rau hauv lub thawv kom qhuav rau 16h.Txoj kab uas hla ntawm cov pas ntsuas ntsuas siv hauv qhov kev sim khoov yog (2 ± 0.1) lub sij hawm ntawm txoj kab uas hla sab nraud.Chav ntsuas: kub (40 ± 2) ℃, txheeb ze av noo (55 ± 5), ozone concentration (200 ± 50) × 10-6%, huab cua ntws: 0.2 ~ 0.5 npaug ntawm chav ntsuas ntim / min.Cov qauv muab tso rau hauv chav kuaj rau 72 teev.Tom qab kev sim, yuav tsum tsis muaj qhov pom kev tawg ntawm qhov chaw ntawm lub plhaub.
Weather resistance/ultraviolet test
Txhua lub voj voog: watering rau 18 feeb, xenon teeb kom qhuav rau 102 feeb, kub (65 ± 3) ℃, txheeb ze av noo 65%, tsawg zog nyob rau hauv wavelength 300 ~ 400nm: (60 ± 2) W / m2.Tom qab 720 teev, qhov kev sim khoov yog nqa tawm ntawm chav tsev kub.Txoj kab uas hla ntawm tus pas ntsuas ntsuas yog 4 ~ 5 npaug ntawm txoj kab uas hla sab nraud.Tom qab kev sim, yuav tsum tsis muaj qhov pom kev tawg ntawm qhov chaw ntawm lub plhaub.
Dynamic penetration test
Nyob rau hauv chav tsev kub, txiav ceev 1N / s, tus naj npawb ntawm cov kev ntsuam xyuas txiav: 4 zaug, txhua zaus cov qauv ntsuas txuas ntxiv, nws yuav tsum txav mus rau pem hauv ntej 25 hli thiab tig 90 ° clockwise ua ntej pib.Sau lub zog nkag mus F thaum lub caij nplooj ntoos hlav steel koob hu rau tooj liab, thiab qhov nruab nrab tus nqi yog ≥150˙Dn1/2 N (4mm2 hla ntu Dn = 2.5mm)
Kev tiv thaiv kab mob
Siv 3 ntu ntawm cov qauv, txhua ntu yog 25 hli sib nrug, thiab ua 4 qhov dents ntawm 90 ° kev sib hloov, qhov tob tob yog 0.05mm thiab yog perpendicular rau tus neeg xyuas pib tooj liab.3 ntu ntawm cov qauv raug muab tso rau hauv -15 ℃, chav ntsuas kub, thiab +85 ℃ chav ntsuas rau 3h, thiab tom qab ntawd raug mob ntawm lub mandrel hauv lawv cov chav kuaj.Lub mandrel txoj kab uas hla yog (3 ± 0.3) lub sij hawm qhov tsawg kawg nkaus txoj kab uas hla ntawm cable.Yam tsawg kawg yog ib qho ntawm txhua tus qauv yog nyob rau sab nraud.Tsis muaj kev puas tsuaj raug pom thaum lub sij hawm AC0.3kV immersion voltage test.
Sheath heat shrinkage test (11 in GB/T 2951.13-2008)
Cov qauv raug txiav kom ntev L1 = 300mm, muab tso rau hauv qhov cub 120 ℃ rau 1h, ces muab tawm thiab txias rau hauv chav tsev kub.Rov ua lub voj voog kub thiab txias no 5 zaug, thiab thaum kawg txias rau chav sov.Tus qauv kub shrinkage tus nqi yuav tsum yog ≤2%.
Vertical combustion test
Tom qab cov cable tiav lawm muab tso rau ntawm (60 ± 2) ℃ rau 4h, ntsug combustion xeem teev nyob rau hauv GB / T 18380.12-2008 yog nqa tawm.
Kev ntsuas Halogen
PH thiab conductivity
Qauv tso kawm: 16h, kub (21 ~ 25) ℃, av noo (45 ~ 55)%.Ob qhov qauv, txhua (1000 ± 5)mg, crushed rau cov khoom hauv qab 0.1mg.Cua ntws tus nqi (0.0157˙D2) l˙h-1 ± 10%, qhov kev ncua deb ntawm lub nkoj combustion thiab ntug ntawm cov cua kub zoo ntawm lub cub tawg yog ≥300mm, qhov kub ntawm lub combustion nkoj yuav tsum ≥935 ℃, thiab qhov kub ntawm 300m deb ntawm lub nkoj combustion (raws li huab cua khiav kev taw qhia) yuav tsum yog ≥900 ℃.
Cov roj uas tsim los ntawm cov qauv kuaj yog sau los ntawm lub raj mis ntxuav roj uas muaj 450ml (PH tus nqi 6.5 ± 1.0; conductivity ≤0.5μS / mm) dej distilled.Lub sij hawm xeem: 30 min.Qhov yuav tsum tau muaj: PH≥4.3;conductivity ≤10μS / hli
Cl thiab Br cov ntsiab lus
Qauv tso kawm: 16h, kub (21 ~ 25) ℃, av noo (45 ~ 55)%.Ob qho piv txwv, txhua (500 ~ 1000) mg, crushed rau 0.1mg.
Cov huab cua khiav yog (0.0157˙D2) l˙h-1 ± 10%, thiab cov qauv yog uniformly rhuab mus rau (800 ± 10) ℃ rau 40min thiab tuav rau 20min.
Cov roj uas tsim los ntawm cov qauv ntsuas yog nqus los ntawm lub raj mis ntxuav roj uas muaj 220ml / thooj 0.1M sodium hydroxide tov;Cov kua ntawm ob lub raj mis ntxuav yog txhaj rau hauv lub raj mis ntim, thiab lub raj mis ntxuav thiab nws cov khoom siv tau ntxuav nrog dej distilled thiab txhaj rau hauv lub raj mis ntim rau 1000ml.Tom qab txias rau hauv chav tsev kub, 200ml ntawm cov tshuaj ntsuam xyuas yog dripped rau hauv lub raj mis volumetric nrog ib tug pipette, 4ml ntawm concentrated nitric acid, 20ml ntawm 0.1M nyiaj nitrate, thiab 3ml ntawm nitrobenzene ntxiv, thiab ces stirred kom txog thaum dawb flocs deposited;40% ammonium sulfate aqueous tov thiab ob peb tee ntawm nitric acid tov yog ntxiv rau tov tag, nplawm nrog ib tug sib nqus stirrer, thiab ammonium hydrogen sulfide titration tov yog ntxiv.
Qhov yuav tsum tau muaj: Qhov nruab nrab ntawm qhov ntsuas qhov ntsuas ntawm ob qhov qauv: HCL≤0.5%;HBr≤0.5%;
Qhov ntsuas tus nqi ntawm txhua tus qauv ≤ qhov nruab nrab ntawm qhov ntsuas qhov ntsuas ntawm ob qhov qauv ± 10%.
F cov ntsiab lus
Muab 25-30 mg ntawm cov khoom coj mus rau hauv 1L oxygen thawv, ntxiv 2-3 tee ntawm alkanol, thiab ntxiv 5 ml ntawm 0.5M sodium hydroxide tov.Cia cov qauv hlawv tawm, thiab ncuav qhov seem rau hauv 50 ml ntsuas khob los ntawm me ntsis yaug.
Sib tov 5 ml ntawm cov tshuaj tsis haum rau hauv cov qauv tshuaj thiab yaug cov tshuaj rau lub cim.Kos lub calibration nkhaus kom tau txais cov fluorine concentration ntawm cov qauv kev daws teeb meem, thiab tau txais cov fluorine feem pua cov ntsiab lus hauv cov qauv los ntawm kev suav.
Kev xav tau: ≤0.1%.
Mechanical zog ntawm rwb thaiv tsev thiab sheath ntaub ntawv
Ua ntej kev laus, lub zog tensile ntawm rwb thaiv tsev yog ≥6.5N / mm2, lub elongation ntawm so yog ≥125%, lub tensile lub zog ntawm sheath yog ≥8.0N / mm2, thiab lub elongation ntawm so yog ≥125%.
Tom qab kev laus ntawm (150 ± 2) ℃ thiab 7 × 24h, qhov kev hloov pauv ntawm tensile lub zog ntawm rwb thaiv tsev thiab sheath ua ntej thiab tom qab kev laus yog ≤-30%, thiab qhov kev hloov pauv ntawm elongation ntawm tawg ntawm rwb thaiv tsev thiab sheath ua ntej thiab tom qab kev laus. yog ≤-30%.
Kev ntsuas kub elongation
Nyob rau hauv ib qho kev thauj khoom ntawm 20N / cm2, tom qab tus qauv raug kuaj xyuas thermal elongation ntawm (200 ± 3) ℃ rau 15min, tus nqi nruab nrab ntawm qhov elongation ntawm rwb thaiv tsev thiab sheath yuav tsum tsis txhob ntau tshaj 100%, thiab qhov nruab nrab tus nqi ntawm qhov nce nyob rau hauv qhov kev ncua deb ntawm cov kab kos tom qab cov qauv coj tawm ntawm qhov cub thiab txias yuav tsum tsis txhob siab tshaj 25% ntawm qhov kev ncua deb ua ntej cov qauv muab tso rau hauv qhov cub.
Thermal lub neej
Raws li Arrhenius nkhaus ntawm EN 60216-1 thiab EN60216-2, qhov ntsuas kub yog 120 ℃.Lub sijhawm 5000h.Kev tuav tus nqi ntawm elongation ntawm tawg ntawm rwb thaiv tsev thiab sheath: ≥50%.Tom qab ntawd ua qhov kev sim khoov ntawm chav tsev kub.Txoj kab uas hla ntawm tus pas ntsuas ntsuas yog ob zaug ntawm txoj kab uas hla sab nraud.Tom qab kev sim, yuav tsum tsis muaj qhov pom kev tawg ntawm qhov chaw ntawm lub plhaub.Yuav tsum muaj lub neej: 25 xyoo.
Thov koj xav tiv tauj peb kom paub ntxiv txog cov hnub ci cables.
sales5@lifetimecables.com
Tel/Wechat/Whatsapp: +86 19195666830
Post lub sij hawm: Jun-20-2024
