Ntev - ncua PV arrays muaj kev thermal expansion stresses thiab cua-induced shear force ntawm rail junctions. Deploying internal aluminium rail splice connectors engineered los ntawm AL6005-T5 alloy nrog integrated bonding pins tswj cov txheej txheem txuas ntxiv mus hla spans tshaj 12 meters thaum tiv thaiv structural buckling nyob rau hauv thermal variation (-20℃rau +70℃). Xaiv cov khoom siv hnub ci txoj kev tsheb ciav hlau splice kom ua tau raws li AS / NZS 1170.2 cua thauj cov qauv thiab tswj cov av txuas ntxiv yam tsis muaj txuas ntxiv jumper.
Cov Txheej Txheem Sib Tw hauv Ntev -Span Solar Racking
Thaum lub hnub ci mounting rail ntev tshaj 6 mus rau 12 meters, ambient kub fluctuations induce axial thermal expansion thiab contraction. Rau cov txheej txheem aluminium profiles (AL6005-T5), linear thermal expansion coefficient yog kwv yees li $23 \\times 10^{-6} \\text{K}^{-1}$. Unmitigated nthuav dav thoob plaws 30-meter txoj kev tsheb ciav hlau khiav mus txog 34.5 hli ntawm axial hloov chaw tshaj 50℃thermal delta, tsim lub sijhawm khoov thiab siab hauv cheeb tsam shear stress ntawm kho cov ntsiab lus, hnub ci ru tsev hooks, thiab module thav ntawv.
Yog tsis muaj nplooj siab nthuav dav pob qij txha thiab precision- haum nrog cov khoom sib txuas, ntev -span arrays raug kev txom nyem los ntawm:
Prying kev txiav txim ntawm fasteners:Shear loads loosen M8 / M10 stainless hlau (SUS304) mounting hardware, tsis muaj zog txuas cov ntsiab lus rau cov qauv purlins.
Module ncej micro- cracking:Kev txwv thermal txav hloov kev ntxhov siab rau hauv cov qauv thiab iav, pheej hmoo laminate delamination thiab micro- tawg hauv PV hlwb.
Bonding txoj kev cuam tshuam:Mechanical loosening ntawm cov ntsiab lus sib txuas ua rau muaj hluav taws xob tiv thaiv, ua txhaum cov qauv hauv av xws li UL 2703 thiab IEC 61215.
Mechanical Performance & Material Specifications: Splice Kit Engineering
Kev sib txuas cov qauv kev tsheb ciav hlau hla qhov ntev ntev yuav tsum muaj kev sib koom ua ke sab hauv lossis sab nraud tuaj yeem hloov kho khoov lub sijhawm sib npaug los yog dhau ntawm txoj kev tsheb ciav hlau lub sijhawm nominal ($M_x$). Precision-extruded internal solar rail splice connectors haum rau hauv txoj kab sab hauv ntawm aluminium rails, muab cov qauv kev sib raug zoo tsis cuam tshuam nrog module mid-clamps lossis kawg-clamps raws lub dav hlau mounting sab saum toj.
| Parameter | Specification / Txuj | Tus nqi / Kev xav tau | Kev cuam tshuam rau qhov System Performance |
| Khoom Qib | ASTM B221 / EN AW -6005A-T5 | Yield Strength $\\ge 240 \\text{ MPa}$, Tensile $\\ge 260 \\text{ MPa}$ | Tiv thaiv elastic deformation nyob rau hauv huab cua loads |
| Fastener Khoom | Stainless hlau SUS304 / A2-70 | Qhov kawg Tensile Strength Ntau dua lossis sib npaug li 700 MPa | Resistant atmospheric corrosion thiab galvanic nkaus |
| Anodization Thickness | ISO 7599 / QUALANOD | Ntau dua lossis sib npaug rau 10 (Class 10) | Tiv thaiv oxidation nyob rau hauv cov ntug hiav txwv dej thiab cov chaw lag luam |
| Max Tsim Cua Load | AS/NZS 1170.2 / EN 1991-1-4 | Mus txog 60 m / s (3 vib nas this mem tes) | Ua kom muaj kev ruaj ntseg hauv cov cheeb tsam Typhoon |
| Grounding Mechanism | UL 2703 / Stainless Hlau Pins | Tsis kam <0.1Ω hla kev sib tshuam | Tshem tawm cov hlua khi tooj liab jumper |
Txhawm rau kom ua tiav qhov kev ruaj ntseg siab tshaj plaws, kev sib txuas ntawm lub hnub ci kev sib txuas txuas ntxiv yuav tsum tau ua qhov kev sim khoov zoo li qub los xam qhov siab tshaj plaws khoov lub sijhawm tsis kam (Mrd$) thiab shear peev (V_rd). Siv AL6005-T5 structural aluminium kom ntseeg tau tias cov splice profile sib tw coefficient ntawm thermal expansion ntawm lub ntsiab rail, tshem tawm kev ntxhov siab vim los ntawm mismatched thermal zog.
Hook:Xav tau qhov project- tshwj xeeb cua thauj khoom suav lossis kev cai OEM hnub ci rail splice profiles
Tham nrog peb cov kws tsim qauv hnub ci hnub ci hnub no
Thermal Expansion Management & Av Bonding Continuity
Precision Expansion Joint Calibration
Thermal expansion tswj yuav tsum tau splitting ntev rail khiav mus rau hauv xam segments. Splice connectors ob npaug raws li cov neeg kho tshuab zawv zawg pob qij txha thaum ntsia nrog kev xaiv nthuav dav.
Rau ib qho array raug rau qhov siab tshaj plaws qhov kub thiab txias delta (Δ T) ntawm 60 degree, qhov sib txawv ntawm qhov nthuav dav (ΔL) rau qhov txuas txuas ntxiv (L) yog xam los ntawm:
Txhim kho ib qho kev sib txuas sab hauv nrog cov ntsia hlau ntsia hlau los yog cov lus qhia ruaj khov tso cai rau $ 8 \\ ntawv nyeem {mm}$ rau $ 16 \\ text{ mm}$ ntawm axial txav ntawm kev xaiv thermal so, neutralizing cov qauv kev ntxhov siab thoob plaws purlins thiab ballast blocks.
Integrated Electrical Bonding (UL 2703 Ua raws)
Kev ua tiav hluav taws xob txuas ntxiv mus thoob plaws txhua lub hnub ci mounting rail txuas yog qhov tseem ceeb rau kev ruaj ntseg thiab kev tiv thaiv xob laim. Standard anodized aluminium coatings ua raws li hluav taws xob insulators nrog kev tawg voltages tshaj 500V.
Txhawm rau kov yeej qhov thaiv thaiv qhov thaiv qhov thaiv tsis muaj kev sib tsoo los yog ntxiv lwm cov tooj liab jumpers:
Penetrating Grounding Washers / Integrated Pins:Splice connectors siv SUS304 teeb screws nrog serrated xauv washers los yog embedded stainless hlau pins.
Anodization Piercing:Thaum teem screws yog torqued rau 12N.m, stainless hlau hniav tom los ntawm lub Greater tshaj los yog sib npaug rau 10μm nodized txheej ncaj qha mus rau raw AL6005-T5 substrate.
Tsawg-Txoj kev tsis kam:Cov hlau no -rau- hlau tiv tauj tsim ib txoj hauv kev hluav taws xob nrog kev tiv thaiv<0.1Ω, fulfilling UL 2703 grounding requirements for continuous fault-current dissipation.
Cov lus nug nquag
Dab tsi yog qhov siab tshaj plaws kev tsheb ciav hlau ntev tso cai ua ntej yuav tsum muaj qhov sib txawv thermal expansion?
Ib qho txuas txuas txuas txuas txuas txuas txuas yuav tsum tsis pub tshaj 12 txog 15 meters. Tshaj li 15 meters, thermal expansion generates structural rog muaj peev xwm ntawm loosening ru tsev attachments thiab cracking PV module iav. Siv cov zawv zawg sab hauv hnub ci mounting rail connector los tsim kev nthuav dav.
Puas yog cov khoom siv hluav taws xob sab hauv lub hnub ci splice yuav tsum tau cais cov tooj liab sib txuas rau hauv av?
Tsis yog. Siab- zoo splice connectors feature integrated SUS304 stainless hlau grounding pins los yog serrated washers uas nkag mus rau lub Great dua los yog sib npaug zos rau 10μm, anodized txheej thaum zawm, tsim ib tug hluav taws xob daim ntawv cog lus raws li 0.1Ω raws li UL 2703 qauv.
Yam tsawg kawg nkaus txiav txim kom muaj nuj nqis (MOQ) thiab OEM customization xaiv siv rau cov qauv rail splices?
Standard Hoobkas MOQ pib ntawm 1,000 units ib batch. Kev cai extrusion profiles, ua ntej- dhos ntsia liaj qhov rooj configurations, thiab private daim ntawv lo ntim yog muaj rau loj -scale EPC tej yaam num thiab OEM wholesale xaj.