Sei kushanda kwe photovoltaic cables kwakakosha?Photovoltaic cables anowanzo kuvhenekerwa nechiedza chezuva, uye solar magetsi masisitimu anowanzoshandiswa mumamiriro ezvinhu akaomarara, senge tembiricha yakanyanya uye ultraviolet mwaranzi.MuEurope, mazuva ekupisa kwezuva achaita kuti tembiricha yepasi pesimba rezuva isvike 100°C.
Parizvino, zvinhu zvakasiyana-siyana zvatingashandisa zvinosanganisira PVC, rubber, TPE uye yepamusoro-soro-yekubatanidza zvinhu, asi zvinosuruvarisa, tambo dzerabha dzakatarwa pa90 ° C uye kunyange PVC cables dzakatarwa pa70 ° C dzinowanzoshandiswa kunze.Kuti uchengetedze mari, makondirakiti mazhinji haasarudze tambo dzakakosha dzesimba rezuva, asi sarudza akajairwa PVC tambo kutsiva photovoltaic tambo.Zviripachena, izvi zvichakanganisa zvakanyanya hupenyu hwesevhisi yehurongwa.
Hunhu hwemafotovoltaic tambo anotemerwa neakakosha tambo insulation uye sheath zvinhu, izvo zvatinodaidza kuti cross-linked PE.Mushure mekuvhenekerwa neirradiation accelerator, iyo molecular chimiro chetambo zvinhu chinoshanduka, nekudaro ichipa ayo akasiyana maitiro ekuita.
Kupokana nemitoro yemagetsi Muchokwadi, panguva yekuisa nekugadzirisa, tambo dzinogona kufambiswa pamipendero yakapinza yezvivakwa zvedenga, uye tambo dzinofanirwa kumira kumanikidzwa, kukotama, kushushikana, kuyambuka-tension mitoro uye mhedzisiro yakasimba.Kana iyo tambo sheath isina kusimba zvakakwana, iyo tambo yekuvharisa tambo ichakuvadzwa zvakanyanya, zvichikanganisa hupenyu hwesevhisi yetambo yese, kana kukonzera matambudziko akadai sepfupi, moto uye kukuvara kwemunhu.
Kuita kwe photovoltaic cables
Magetsi zvinhu
DC kuramba
Iyo DC kuramba kweiyo conductive musimboti wetambo yapera pa20 ℃ haina kukura kupfuura 5.09Ω/km.
Mvura inonyudza voltage test
Tambo yapera (20m) inonyudzwa mu (20±5) ℃ mvura kwe1h uye yoyedzerwa 5min voltage (AC 6.5kV kana DC 15kV) isina kuputsika.
Yenguva refu DC voltage resistance
Muenzaniso wacho wakareba 5m uye wakaiswa mu (85±2)℃ mvura yakadirwa ine 3% sodium chloride (NaCl) ye (240±2)h, migumo yese iri pachena pamusoro pemvura kwe30cm.A DC voltage ye 0.9kV inoshandiswa pakati pepakati nemvura (iyo conductive core yakabatanidzwa kune yakanaka pole uye mvura yakabatanidzwa kune yakaipa danda).Mushure mekutora sampuli, kuyedzwa kwemvura kunyudzwa kwemagetsi kunoitwa.The test voltage is AC 1kV, uye hapana kuparara kunodiwa.
Insulation resistance
Kudzivirira kwekudzivirira kwetambo yakapedzwa pa 20 ℃ haisi pasi pe 1014Ω˙cm, uye kudzivirira kwekudzivirira kwetambo yakapedzwa pa90 ℃ haisi pasi pe1011Ω˙cm.
Sheath surface resistance
Kupokana kwepamusoro kweiyo yakapedzwa tambo sheath kunofanirwa kunge isiri pasi pe109Ω.
Zvimwe zvinhu
High tembiricha pressure test (GB/T 2951.31-2008)
Tembiricha (140 ± 3) ℃, nguva 240min, k=0.6, kudzika kweiyo indentation hakupfuuri 50% yehupamhi hwese hwekuvhara uye sheath.Uye AC6.5kV, 5min voltage bvunzo inoitwa, uye hapana kuparara kunodiwa.
Wet heat test
Sample inoiswa munzvimbo ine tembiricha ye90 ℃ uye imwe humidity ye85% ye1000h.Mushure mekutonhodza kusvika kune tembiricha yekamuri, shanduko yekusimba kwesimba iri ≤-30% uye shanduko yekurebesa panguva yekuzorora ndeye ≤-30% kana ichienzaniswa nepamberi bvunzo.
Asidhi uye alkali mhinduro yekuramba bvunzo (GB/T 2951.21-2008)
Mapoka maviri emasampuli akanyudzwa mu oxalic acid solution ine concentration ye45g/L uye sodium hydroxide solution ine concentration ye40g/L, zvichiteerana, patembiricha ye23℃ ye168h.Kuenzaniswa neyakanyudzwa isati yanyudzwa mune mhinduro, shanduko yekusimba kwesimba yaive ≤± 30%, uye elongation panguva yekuzorora yaive ≥100%.
Kuenderana bvunzo
Mushure mokunge tambo yakwegura ye7 × 24h pa (135 ± 2) ℃, chiyero chekuchinja kwesimba rekugadzirisa kusati kwasvika uye mushure mekuvhara kuchembera kwaiva ≤± 30%, uye kuchinja kwekureba panguva yekuzorora kwaiva ≤± 30%;chiyero chekuchinja kwesimba rekusimba pamberi uye mushure mekuchembera kwesheath yaive ≤-30%, uye shanduko yekurebesa pakuzorora yaive ≤± 30%.
Yakaderera tembiricha kukanganisa bvunzo (8.5 mu GB/T 2951.14-2008)
Kutonhora kwekushisa -40 ℃, nguva 16h, kudonha uremu 1000g, kukanganisa block mass 200g, kudonha kureba 100mm, hapana kuputika kunoonekwa pamusoro.
Kudzikira tembiricha yekukotama bvunzo (8.2 muGB/T 2951.14-2008)
Kutonhodza tembiricha (-40 ± 2) ℃, nguva 16h, bvunzo tsvimbo dhayamita 4 ~ 5 nguva yekunze dhayamita tambo, 3 ~ 4 anotendeuka, hapana anooneka makatsemuka pamusoro sheath pamusoro pashure bvunzo.
Ozone resistance test
Muenzaniso wakareba 20cm uye unoiswa mumudziyo wekuomesa kwemaawa gumi nematanhatu.Iyo dhayamita yetambo yekuyedza inoshandiswa muyedzo yekupeta ndeye (2±0.1) nguva yedhayamita yekunze kwetambo.The test room: tembiricha (40 ± 2) ℃, humidity yakaenzana (55±5)%, ozone concentration (200±50)×10-6%, kuyerera kwemhepo: 0.2~0.5 times the test room volume/min.Muenzaniso unoiswa mukamuri yekuyedza kwemaawa makumi manomwe nemaviri.Mushure mekuedzwa, hapafanirwe kuve nekutsemuka kunoonekwa pamusoro peiyo sheath.
Weather kuramba / ultraviolet bvunzo
Kutenderera kwega kwega: kudiridza kwemaminetsi gumi nemasere, xenon rambi kuomesa kwemaminitsi zana, tembiricha (65±3) ℃, humidity 65%, simba shoma pasi pewavelength 300~400nm: (60±2)W/m2.Mushure memaawa 720, bvunzo yekukotama inoitwa pamhepo tembiricha.Iyo dhayamita yebvunzo tsvimbo ndeye 4 ~ 5 nguva yekunze dhayamita yetambo.Mushure mekuedzwa, hapafanirwe kuve nekutsemuka kunoonekwa pamusoro peiyo sheath.
Dynamic kupinda bvunzo
Pasi pekushisa kwekamuri, kucheka kukurumidza 1N / s, nhamba yekucheka bvunzo: 4 nguva, nguva imwe neimwe sampu yekuyedza inoenderera mberi, inofanirwa kuenderera mberi 25mm uye kutenderera 90 ° wachi isati yaenderera.Rekodha simba rekupinda F kana tsono yesimbi yechitubu ichibata waya yemhangura, uye kukosha kweavhareji iri ≥150˙Dn1/2 N (4mm2 cross section Dn=2.5mm)
Dent resistance
Tora zvikamu zvitatu zvemasampuli, chikamu chega chega chiri 25mm kure, uye ita 4 dents pa 90 ° kutenderera, kudzika kwe dent ndeye 0.05mm uye perpendicular kune conductor yemhangura.Zvikamu zvitatu zvemasamples zvinoiswa mu -15 ℃, tembiricha yekamuri, uye +85 ℃ makamuri ebvunzo kwe3h, uye vobva vakuvara pa mandrel mumakamuri avo ebvunzo.Iyo mandrel dhayamita ndeye (3±0.3) nguva yakaderera yekunze dhayamita yetambo.Inenge notch imwe yemuenzaniso wega wega inowanikwa kunze.Hapana kuparara kunoonekwa panguva yeAC0.3kV kunyudza voltage bvunzo.
Sheath kupisa kupisa shrinkage bvunzo (11 muGB/T 2951.13-2008)
Sample inochekwa kusvika pakureba L1 = 300mm, inoiswa muovheni ye120 ℃ kwe1h, yozoburitswa yotonhodzerwa kusvika kukamuri tembiricha.Dzokorora iyi inopisa uye inotonhora kutenderera kashanu, uye pakupedzisira inotonhorera kusvika kukamuri tembiricha.Muenzaniso wekupisa shrinkage rate inodiwa kuva ≤2%.
Vertical combustion test
Mushure mekunge tambo yapera yaiswa pa (60±2) ℃ ye4h, iyo vertical combustion test inotsanangurwa muGB/T 18380.12-2008 inoitwa.
Halogen yemukati bvunzo
PH uye conductivity
Kuiswa kwemuenzaniso: 16h, tembiricha (21～25) ℃, humidity (45～55)%.Sampuli mbiri, imwe neimwe (1000 ± 5) mg, yakapwanyika kuita zvidimbu pazasi 0.1mg.Mwero wekuyerera kwemhepo (0.0157˙D2) l˙h-1±10%, chinhambwe chiri pakati pechikepe chinopisa uye kumucheto kwenzvimbo inoshanda yekudziya yechoto ≥300mm, tembiricha pachikepe chemoto chinofanira kunge chiri ≥935. ℃, uye tembiricha iri pa300m kure nechikepe chinopisa (parutivi rwekuyerera kwemhepo) inofanira kunge iri ≥900℃.
Iyo gasi inogadzirwa nemuenzaniso webvunzo inounganidzwa kuburikidza negasi rekugezesa bhodhoro rine 450ml (PH kukosha 6.5±1.0; conductivity ≤0.5μS/mm) distilled mvura.The test cycle: 30min.Zvinodiwa: PH≥4.3;conductivity ≤10μS/mm.
Cl uye Br zvirimo
Kuiswa kwemuenzaniso: 16h, tembiricha (21 ~ 25) ℃, humidity (45 ~ 55)%.Mienzaniso miviri, imwe neimwe (500 ~ 1000) mg, yakapwanyika kusvika 0.1mg.
Mhepo yekuyerera kwemhepo ndeye (0.0157˙D2)l˙h-1±10%, uye sampuli inodziya zvakafanana kusvika (800±10) ℃ ye40min uye inochengeterwa 20min.
Iyo gasi inogadzirwa nemuenzaniso wekuedzwa inotorwa kuburikidza negasi rekugezesa bhodhoro rine 220ml / chidimbu 0.1M sodium hydroxide solution;iyo mvura yemabhodhoro maviri ekugeza gasi inoiswa mubhodhoro revolumetric, uye bhodhoro rekugeza gasi uye zvishongedzo zvaro zvinocheneswa nemvura yakasvibiswa uye inopindwa mubhodhoro revolumetric kusvika ku1000ml.Mushure mekutonhora kusvika kukamuri yekupisa, 200ml yemhinduro yakaedzwa inodonhedzwa mubhodhoro revolumetric nepipette, 4ml ye concentrated nitric acid, 20ml ye 0.1M silver nitrate, uye 3ml ye nitrobenzene inowedzerwa, uye yobva yabvongodzwa kusvikira machena machena aiswa;40% ammonium sulfate aqueous solution uye madonhwe mashoma enitric acid solution inowedzerwa kuti isanganiswe zvachose, yakamutswa nemagnetic stirrer, uye ammonium hydrogen sulfide titration solution inowedzerwa.
Zvinodiwa: Avhareji yeyedzo kukosha kwemasamples maviri: HCL≤0.5%;HBr≤0.5%;
Iko kukosha kweyedzo yemuenzaniso wega wega ≤ avhareji yeyedzo kukosha kwemasampuri maviri ± 10%.
F zvemukati
Isa 25-30 mg yezvinhu zvemuenzaniso mumudziyo weokisijeni we1, wedzera madonhwe maviri-3 ealkanol, uye wedzera 5 ml ye0.5M sodium hydroxide solution.Rega muenzaniso upise, wodira zvakasara mukapu yekuyeresa ye50 ml nekusukurudza zvishoma.
Sanganisa 5 ml yebuffer solution mumuenzaniso mhinduro uye sukurudza mhinduro kune mucherechedzo.Dhirowa calibration curve kuti uwane huwandu hwefluorine yemuenzaniso mhinduro, uye uwane iyo fluorine percentage yemukati mumuenzaniso nekuverenga.
Zvinodiwa: ≤0.1%.
Mechanical zvimiro zvekudzivirira uye sheath zvinhu
Usati wachembera, kusimba kwesimba rekudzivirira ndeye ≥6.5N/mm2, kureba panguva yekuzorora kuri ≥125%, kusimba kwesheath kuri ≥8.0N/mm2, uye kurebesa panguva yekuzorora kuri ≥125%.
Mushure mekuchembera pa (150 ± 2) ℃ uye 7 × 24h, shanduko yekusimba kwesimba rekudzivirira uye sheath musati uye mushure mekuchembera ndeye ≤-30%, uye shanduko yekurebesa pakureba kwekuvhara uye sheath pamberi uye mushure mekuchembera. iri ≤-30%.
Thermal elongation test
Pasi pemutoro we20N/cm2, mushure mekunge sample yaiswa pakuyedzwa kwekurebesa kwekushisa pa (200±3)℃ kwe15min, kukosha kwepakati kwekurebesa kwekuvhara uye sheath haifanire kunge yakakura kudarika 100%, uye yepakati. kukosha kwekuwedzera kwechinhambwe pakati pemitsara yekumaka mushure mekunge sampuli yatorwa kubva muchoto uye yakatonhodzwa haifanirwe kunge yakakura kupfuura 25% yechinhambwe chisati chaiswa mufananidzo muchoto.
Hupenyu hwekupisa
Zvinoenderana neArrhenius curve yeEN 60216-1 uye EN60216-2, iyo tembiricha index ndeye 120 ℃.Nguva 5000h.Kuchengetedza mwero wekurebesa pakupwanya kwekuvhara uye sheath: ≥50%.Zvadaro ita bvunzo yekukotama pane tembiricha yekamuri.Iyo dhayamita yetambo yekuyedza kaviri dhayamita yekunze kwetambo.Mushure mekuedzwa, hapafanirwe kuve nekutsemuka kunoonekwa pamusoro peiyo sheath.Hupenyu hunodiwa: 25 makore.
Ndapota inzwa wakasununguka kutibata kuti uwane rumwe ruzivo nezve solar cables.
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