Unoziva here chinonzi Photovoltaic (PV) Wire?

       Photovoltaic waya, inozivikanwawo sePV wire, ndeye imwechete conductor waya inoshandiswa kubatanidza photovoltaic simba system mapaneru.

Iyo conductor chikamu chephotovoltaic tambo imhangura kana tin-plated mhangura conductor, iyo insulation layer ndeye radiation crosslinked polyolefin insulation, uye sheath ndeye radiation crosslinked polyolefin insulation.Nhamba huru yeDC tambo mu photovoltaic magetsi zviteshi zvinoda kuiswa kunze, uye mamiriro ezvakatipoteredza akaoma.Iyo tambo zvinhu zvinofanirwa kunge zvichibva pane anti-ultraviolet, ozone, yakanyanya kushanduka tembiricha uye kukukurwa kwemakemikari.Inofanira kunge iine hunyoro-uchapupu, anti-kuratidzwa, kutonhora, inodzivirira kupisa, uye anti-ultraviolet.Mune dzimwe nzvimbo dzakakosha, zvinhu zvemakemikari zvakaita seasidhi uye alkali zvinodiwa zvakare.

Code Wiring Zvinodiwa

NEC (National Electrical Code of the United States) yakagadzira Chinyorwa 690 Solar Photovoltaic (PV) masisitimu ekutungamira masisitimu emagetsi emagetsi, array circuits of photovoltaic systems, inverters uye machaji controller.NEC inowanzoshandiswa mukuisa kwakasiyana-siyana muUnited States (mirau yemuno inogona kushanda).

Iyo 2017 NEC Chinyorwa 690 Chikamu IV wiring nzira inobvumira nzira dzakasiyana dze wiring kuti dzishandiswe mu photovoltaic system.Kune imwechete conductors, kushandiswa kweUL-yakasimbiswa USE-2 (yepasi pevhu rebasa rekupinda) uye PV mhando dzewaya dzinobvumidzwa munzvimbo yakazaruka yekunze kweiyo photovoltaic simba redunhu mune photovoltaic array.Iyo zvakare inobvumira PV tambo kuti iiswe mumatireyi ekunze PV sosi maseketi uye PV inobuda maseketi pasina kudiwa kweyakayerwa kushandiswa.Kana iyo photovoltaic simba rekupa uye rinobuda redunhu redunhu riri pamusoro pe30 volts munzvimbo dzinosvikika, pane zvechokwadi zvisingakwanisi.Muchiitiko ichi, mhando yeMC kana kondakita akakodzera akaiswa mujaho anodiwa.

NEC haizive mazita emhando yeCanada, senge RWU90, RPV kana RPVU tambo dzisina mbiri mbiri dzakasimbiswa solar application.Nekumisikidzwa muCanada, 2012 CEC Chikamu 64-210 inopa ruzivo pamusoro pemhando dzewaya dzinobvumidzwa kune photovoltaic application.

Kusiyana pakati pe photovoltaic cables uye tambo dzakajairwa

PV Advantages

Zvinhu zvakasiyana-siyana zvinogona kushandiswa kune akajairwa tambo zvinhu zvemhando yepamusoro zvakarukwa zvakarukwa senge polyvinyl chloride (PVC), rabha, elastomer (TPE) uye muchinjiko-yakabatana polyethylene (XLPE), asi zvinonzwisa tsitsi kuti iyo yepamusoro-yakatemerwa. tembiricha yetambo dzakajairwa Mukuwedzera, kunyange PVC insulated tambo dzine rated tembiricha 70 ℃ anowanzoshandiswa panze, asi havagoni kuzadzisa zvinodiwa tembiricha yepamusoro, UV kudzivirira uye kutonhora kuramba.
Nepo tambo dzephotovoltaic dzichiwanzo kuvhenekerwa nechiedza chezuva, masisitimu emagetsi ezuva anowanzoshandiswa munzvimbo dzakaoma, senge tembiricha yakaderera uye ultraviolet mwaranzi.Kumba kana kunze kwenyika, kana mamiriro ekunze akanaka, tembiricha yepamusoro yesolar system ichakwira se100 ℃.

——Anti-muchina mutoro

Kune photovoltaic cables, panguva yekuisa uye kushandiswa, tambo dzinogona kufambiswa pamipendero yakapinza yedenga reimba.Panguva imwecheteyo, tambo dzinofanirwa kumira kumanikidzwa, kukotama, kushushikana, kusungirirwa mitoro inorema uye yakasimba mhedzisiro yekupikisa, iyo iri pamusoro peyakajairika tambo.Kana iwe ukashandisa tambo dzakajairwa, sheath ine yakashata yekudzivirira UV kuita, izvo zvinokonzeresa kuchembera kwekunze sheath yetambo, izvo zvinokanganisa hupenyu hwesevhisi yetambo, izvo zvinogona kutungamira mukuonekwa kwezvinetso senge cable short circuit. , aramu yemoto, uye kukuvara kune ngozi kune vashandi.Mushure mekudziridzwa, iyo photovoltaic cable insulation bhachi ine tembiricha yakanyanya uye inotonhora kuramba, mafuta kuramba, asidhi uye alkali munyu kuramba, kuchengetedzwa kweUV, kudzoreredza murazvo, uye kuchengetedza kwezvakatipoteredza.Photovoltaic tambo dzemagetsi dzinonyanya kushandiswa munzvimbo dzakaomarara nehupenyu hwebasa hweanopfuura makore makumi maviri nemashanu.

Main Performance

1. DC kuramba

Iyo DC kuramba kweiyo conductive musimboti wetambo yapera pa20 ℃ haina kupfuura 5.09Ω/km.

2. Mvura immersion voltage test

Tambo yapera (20m) haizopunzike mushure mekunyudzwa mu (20±5) ℃ mvura kwe1h mushure me5min voltage test (AC 6.5kV kana DC 15kV).

3. Yenguva refu DC voltage resistance

Sample kureba i5m, wedzera (85±2)℃ mvura yakadirwa ine 3% NaCl (240±2)h, uye patsanura pamusoro pemvura ne30cm.Isa DC 0.9kV voltage pakati pepakati nemvura (iyo conductive core yakabatana, uye mvura yakabatana naNick).Mushure mekutora pepa, ita bvunzo yekunyudzwa kwemvura.The test voltage is AC 1kV, uye hapana kuparara kunodiwa.

4. Insulation resistance

Kudzivirira kwekudzivirira kwetambo yakapera pa20 ℃ haisi pasi pe1014Ω · cm,
Kudzivirira kwekudzivirira kwetambo yakapedzwa pa90 ℃ haisi pasi pe1011Ω · cm.

5. Kuramba kwepamusoro kwesheath

Kupokana kwepamusoro kweiyo yakapedzwa tambo sheath haifanire kunge iri pasi pe109Ω.

Performance Test

1. High-temperature pressure test (GB/T2951.31-2008)

Tembiricha (140 ± 3) ℃, nguva 240min, k=0.6, indentation kudzika hakupfuuri 50% yehupamhi hwese hwekuvharira uye sheath.Uye ita AC6.5kV, 5min voltage bvunzo, hapana kuparara kunodiwa.

2. Damp heat test

Sample inoiswa munzvimbo ine tembiricha ye90 ℃ uye hunyoro hunoenderana ne85% ye1000h.Mushure mekutonhodza kusvika kune tembiricha yekamuri, shanduko yekusimba kwesimba iri ≤-30% uye shanduko yekurebesa panguva yekuzorora ndeye ≤-30% kana ichienzaniswa nepamberi bvunzo.

3. Acid uye alkali resistance test (GB/T2951.21-2008)

Mapoka maviri emasampuli akanyudzwa mu oxalic acid solution ine mutsara we 45g / L uye sodium hydroxide solution ine huwandu hwe40g / L, pakupisa kwe23 ° C kwe168h.Kuenzaniswa nemhinduro isati yanyudzwa, chiyero chekusimba chesimba chaive ≤± 30%, kureba panguva yekuzorora ≥100%.

4. Kuenderana bvunzo

Mushure mokunge tambo yose yakwegura ye 7 × 24h pa (135 ± 2) ℃, kuchinja kwesimba rekugadzirisa simba risati rasvika uye mushure mekuchembera kukwegura ndeye ≤± 30%, shanduko yekureba panguva yekuzorora ndeye ≤± 30%;shanduko yekusimba kwesimba risati rasvika uye mushure mekunge sheath yakwegura ndeye ≤ -30%, shanduko yekurebesa pakureba ≤± 30%.

5. Kudzikira-tembiricha kukanganisa bvunzo (8.5 muGB/T2951.14-2008)

Kutonhodza tembiricha -40 ℃, nguva 16h, uremu hwekudonha huremu 1000g, huremu hwekukanganisa block 200g, kureba kwekudonha 100mm, hapafanirwe kuve nekutsemuka kunoonekwa pamusoro.

6. Low tembiricha yekukotama bvunzo (8.2 mu GB/T2951.14-2008)

Kutonhodza tembiricha (-40 ± 2) ℃, nguva 16h, dhayamita yetsvimbo yebvunzo ndeye 4 kusvika 5 nguva yekunze dhayamita yetambo, inomonereka 3 kusvika 4 nguva, mushure mebvunzo, hapafanirwe kuve nekutsemuka kunoonekwa pasheath. pamusoro.

7. Ozone resistance test

Kureba kwemuenzaniso ndeye 20cm, uye inoiswa mumudziyo wekuomesa kwe16h.Iyo dhayamita yetambo yekuyedza inoshandiswa muyedzo yekupeta ndeye (2±0.1) nguva yedhayamita yekunze kwetambo.The test room: tembiricha (40±2) ℃, humidity (55±5)%, ozone concentration (200±50)×10-6%, Mhepo inoyerera: 0.2 kusvika 0.5 nguva yekamuri vhoriyamu/min.Muenzaniso unoiswa mubhokisi rekuedza kwemaawa makumi manomwe nemaviri.Mushure mekuedzwa, hapafanirwe kuve nekutsemuka kunoonekwa pane sheath pamusoro.

8. Weather resistance / ultraviolet test

Kutenderera kwega kwega: kupfapfaidza mvura kwe18min, xenon kuomeswa kwemwenje kwe102min, tembiricha (65±3) ℃, humidity 65%, simba shoma pasi pemamiriro ewavelength 300～400nm: (60±2)W/m2.Mushure memaawa 720, bvunzo yekukotama patembiricha yekamuri yakaitwa.Iyo dhayamita yetambo yekuedza ndeye 4 kusvika ku5 nguva yekunze kwetambo.Mushure mekuedzwa, hapafanirwe kuve nekutsemuka kunoonekwa pane sheath pamusoro.

9. Dynamic kupinda bvunzo

Pakupisa kwekamuri, kasi yekucheka ndeye 1N / s, uye nhamba yekucheka miedzo: 4 nguva.Muenzaniso unofanirwa kuendeswa mberi ne25mm uye kutenderedzwa 90 ° wachi nguva imwe neimwe.Rekodha simba rekupinda F panguva yechitubu simbi tsono inobata waya yemhangura, uye avhareji kukosha yakawanikwa ≥150 · Dn1/2N (4mm2 chikamu Dn = 2.5mm)

10. Kuramba kune dents

Tora zvikamu zvitatu zvemasamples, chikamu chega chega chiri 25mm chakaparadzana, uye tenderera 90 ° kuita huwandu hwe4 dents, kudzika kwemazi 0.05mm uye perpendicular kune waya yemhangura.Zvikamu zvitatu zvemasampuli zvakaiswa mubhokisi rekuedza pa -15 ° C, tembiricha yekamuri, uye +85 ° C kwemaawa matatu, ndokuzokuvara pane mandrel mune imwe neimwe inoenderana bvunzo bhokisi.Iyo dhayamita ye mandrel yaive (3±0.3) nguva yakaderera yekunze dhayamita yetambo.Chibodzwa chimwechete chemuenzaniso wega wega chiri kunze.Iyo haiputsi mu AC0.3kV mvura immersion voltage test.

11. Sheath thermal shrinkage test (No. 11 mu GB/T2951.13-2008)

Iyo yakachekwa kureba kwesample iL1 = 300mm, inoiswa muovheni pa120 ° C kweawa imwe uye yozoendeswa kune kamuri tembiricha kuti itonhodze.Dzokorora ichi kutonhora nekudziya kutenderera kashanu, uye pakupedzisira kutonhora kusvika kukamuri tembiricha.Iko kupisa kwekushisa kwemuenzaniso kunodiwa kuva ≤2%.

12. Vertical burning test

Mushure mekunge tambo yakapedzwa yaiswa pa (60±2) ° C kwemaawa mana, inoiswa pasi peyedzo yekupisa inotsanangurwa muGB/T18380.12-2008.

13. Halogen content test

PH uye conductivity
Kuiswa kwemuenzaniso: 16h, tembiricha (21～25) ℃, humidity (45～55)%.Sampuli mbiri, imwe neimwe (1000 ± 5) mg, yakapwanyika kuita zvidimbu pazasi 0.1 mg.Kuyerera kwemhepo (0.0157 · D2) l·h-1±10%, chinhambwe chiri pakati pechikepe chinopisa uye kumucheto kwenzvimbo inoshanda yekudziya yechoto iri ≥300mm, tembiricha pachikepe chekupisa chinofanira kunge chiri ≥935℃, 300m. kure nechikepe chinopisa (munzira yekuyerera kwemhepo ) Tembiricha inofanira kunge iri ≥900℃.
Iyo gasi inogadzirwa nemuenzaniso wekuedza inounganidzwa kuburikidza nebhodhoro rekugeza gasi rine 450ml (PH kukosha 6.5±1.0; conductivity ≤0.5μS/mm) yemvura yakasvibiswa.Nguva yekuedza: 30min.Zvinodiwa: PH≥4.3;conductivity ≤10μS/mm.