1.xhhw xaim siv thiab cov khoom siv zoo
Cov Cheebtsam Tseem Ceeb
Tus coj nkauj: Xhhw tooj liab cov neeg ua kom pom kev zoo siab (100% IRS) nrog ntau yam AWG ntau thiab tsawg muaj
Kev rwb thaiv tsev: Hla-txuas Polyethylene (XLPE) muab:
Thermal stability txog 90 degree ntub / 150 degree qhuav
Tshuaj Kuj
Neeg Kho Tshuab Cov Nkaus
Jackan tsho: Nplaim taws-retardant, tshav ntuj-resistant tebchaw
Lub hauv paus nruab nrab ntawm cov cheebtsam no tsim cov kev sib tw daws teeb meem xhhw hlau 600V thiab 1000V yuav tsum nyob thoob plaws cov ntawv thov.
2.UV hluav taws xob: hem rau cov rwb thaiv tsev xaim
2.1 Kev nkag siab UV kev nyuaj siab
Ultraviolet hluav taws xob ({290-400 nm wavelength) pib photochemical cov tshuaj tiv thaiv nyob rau hauv polymers los ntawm:
Cov pob tw (molecular tawg)
Oxidation cov txheej txheem
Nto crazing / tawg
2.2 Qhov tshwm sim rau cov tshuab hluav taws xob
Rwb thaiv tsev brittleness ua rau tawg
Txo lub zog dielectric
Kev nqus dej ntxiv
Nrov cua sov thermal laus
Tsoos PVC-Insulated cov xov hlau feem ntau qhia 40-60}}}}}}% nrawm dua UV degradation piv rau xhhw counterparts.
3.XHHHW RUAJ RWB THAIV TSEV UV YAWM TSHUAB
3.1 Molecular Qauv Txhim Kho
Hla-txuas kev ntom ntom ntom ntom: XLPE's Peb-Sab Nraum:
Nce cov nyiaj txhoj puab los ntawm 80-90 kcal / mol (PVC) rau 100-110 kcal / mol
Txo cov dawb tshaj plaws radical tsim los ntawm 65%
UV Stabilizers: Cov qauv ntxiv nrog rau:
Hindered Amine Teeb Stabilizers (Hals)
Cov pa roj hmab dub (2-3% concentration)
Benzotriazole nqus
3.2 Kev Tsim Nyog
Kev xeem ntawv rau UL 44 / UL 1277 suav nrog:
{720- teev UV Raug (QUV ceev huab cua)
100% khaws cia ntawm kev sib tw elongation
<15% change in tensile strength
Field studies show XHHW-2 AWG cable maintains >95% tus thawj insulation kev sib koom ua ke tom qab 15 xyoo nyob rau hauv lub hnub ncaj qha.
4.Key Xhhw Cov Hlau Specifications thiab Kev Ntaus Nqi
Kev qhia dav dav
| Ntaus | Kev Ntsuas Hluav Taws Xob | Cov Kev Siv Cov Ntawv Siv |
|---|---|---|
| Xhhw | 600V | Kev Lag Luam Ceg |
| Xhhw -2 | 1000V | Hnub Ci Ua Liaj Ua Teb, Muaj Khoom Noj |
| 2AWG XHHW tooj liab 1000V | 1000V | Kev faib tawm siab tam sim no |
Kev Ntsuas Kub
Qhov chaw ntub dej: 75 degree
Cov chaw qhuav: 90 degree
Muaj Thaum Muaj Xwm Ceev Ntau Tshaj: 150 Qib (Max 100 Hrs / Xyoo)
Ntawv muaj
UL 44 / UL 1277
CSA C22.2 No. 38
MSHA / NEC 2023 Ua Raws
5.comParative Advantage: xhhw vs. addatives
UV Ua Metortrics
| Ntiag tug | Xhhw | Hwj chim | Pvc | Rho |
|---|---|---|---|---|
| UV Txiaj Ntsig (cov sijhawm ua tsis tiav) | 5,000+ | 1,200 | 800 | 3,000 |
| Tawg tawm tus nqi | 0. 02 hli / yr | {{0 {}}. 15 hli / yr | {{0 {}. 25 hli / yr | 0. 08 hli / yr |
| Dej ragentit | <0.1% | 0.4% | 0.6% | 0.2% |
Kev Tshawb Xyuas Tus Nqi
34% tus nqi tswj qis dua vs. thhn dua 20 xyoo
19% kev pabcuam ntev dua piv rau rhh
62% txo qis hauv UV-cuam tshuam cov vs kev lag luam nruab nrab
6. Luam tawm-cov kev daws teeb meem
6.1 Hnub Ci Zog (2aug Xhhw Tooj Liab 1000V)
Tuam Tsev 1000VDC Qav Circuits
UV Muaj Kev Ruaj Ntseg Ua Si 25-} xyoo pua xyoo lub xyoo lav lav lav
{{0 {}} degree rau 90 degree ua haujlwm ntau
6.2 Kev Siv Cable Cable (Xhhw -2 AWG Cable)
Kev Tiv Thaiv Kev Raug + UV
Txhawb Nqa 1000V Theem-Rau-Theem Nruab Nruab
50% tshav kub tsis sib xws vs. thhn
6.3 Cov Chaw Kho Dej (XHHW HLAU 600V)
Kev Siv Ntsuas Ntaus: 72 teev @ 1m tob
Hla IEEE 383 Ntsug Cov Hluav Taws Xob
100% ROHS Ua Raws
7.Installation kev coj ua zoo tshaj plaws
UV kis tau me me
Conduit yuav tsum: tsis muaj rau UV kev tiv thaiv (NEC 310.10 (g))
Kev faus ncaj qha: pom zoo nrog 90 degree ntub ntsuas
Aerial Instatorations: Siv UV-resistant tub txib cables
Cov Teons Terminques
Siv compression Lugs rau XLPE
Ua kom cov nqi tsawg kawg nkaus (6x OD rau 2AWG)
Siv cov tshuaj tiv thaiv kab ke rau kev sib txuas tooj liab
8. 8.Txoj kev tsim kho
Nano-ua kom XLEPE (2025 tso tawm):
40% Txhim Kho UV Kuj
500v / μm dielectric lub zog
Ntse Xhhw cables nrog UV sensors
Bio-based XLPE hom
Hauv kev sib tw khiav hluav taws xob Asmeskas cable ua lag luam,Dongguan Ntau Ntau Hlau & Cable Co., Ltd.sawv tawm. Peb cov kev sib txuas ntau lawm tau huv thiab ua rau peb cov neeg ua haujlwm muaj kev tawm tsam ntawm 1.3 lab meters ntawm cov zaub mov zoo hauv ib hlis. Peb cov khoom tau dhau los ua ntau daim ntawv pov thawj xws li UL83 thiab PC4. Piv txwv li, NM-B CABLE ntsib tus qib siab Asmeskas cov qauv hauv hluav taws thiab noo noo tsis kam. Nyob rau tib lub sijhawm, peb ua haujlwm ncaj qha nrog cov khoom siv raw khoom kom txo cov khoom lag luam hauv nruab nrab thiab txo cov khoom lag luam Asmeskas kom txaus siab rau cov khoom siv zoo ntawm cov nqi qis.