1. Taw qhia rau XHHW Hlau thiab nws cov ntawv thov
XHhw cov neeg saib xyuas feem ntau ua los ntawm txhuas lossis tooj liab, insulated nrog tus ntoo khaublig sib txuas (XLPE), thiab ntsuas rau 600V daim ntawv thov. Lawv lub kub kub tiv taus (nce txog 90 degree hauv cov xwm txheej qhuav thiab 75 degree nyob rau hauv cov chaw ntub dej) ua rau lawv zoo tagnrho rau:
Xhhw hauv conduit: Siv nyob rau hauv Runeways rau kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv tshuab.
Xhhw mc cable: Cov kab ua paug rau cov chaw muaj kev lag luam uas hloov tau thiab siv tau yog qhov tseem ceeb.
Daim ntaub ntawv hlau hauv tsev: Cov lus faib hluav taws xob hauv cov qauv lag luam.
Lub rwb thaiv tsev kev ua tau zoo cuam tshuam kev nyab xeeb thiab kev ncua ntev, yuav tsum muaj kev soj ntsuam kev sib tw tau zoo.
2. Tus Qauv Tseem Ceeb Tswj Hwm XHHW Rwb thaiv tsev kev kuaj
Kev kuaj sim nrog International thiab Kev Lag Luam Cov Qauv Txheej Txheem los xyuas kom muaj kev ua raws cai thiab kev nyab xeeb:
UL 44: Thawj cov qauv rau thermoplastic-insulated xov hlau, suav nrog xhhw, offlining qhov yuav tsum tau ua, dielectric zog, thiab thermal kev laus.
Iec {60695-2-13: Txheeb xyuas GLOW-hlau hlau hluav taws kub (GWIT), tseem ceeb rau kev ntsuas cov phom phom.
ASTM thiab IEC Corrosion kev ntsuam xyuas: Xws li GB / T 2423. 51-2020}, uas simulates corrosive ib puag ncig.
Cov qauv qauv xyuas kom cov rhhhw rwb thaiv tsev ua tau raws li cov tshuab hluav taws xob, hluav taws xob, thiab kev nyab xeeb ntawm hluav taws xob.
3. Kev Ntsuas Lub Cev thiab Kev Ntsuas Ntawm XHHW Rwb thaiv tsev
3.1 tensile lub zog thiab elongation
XLPE rwb thaiv tsev yuav tsum zwm rau txhua yam kev ntxhov siab thaum lub sijhawm teeb tsa. Kev Ntsuam Xyuas Ntsuas:
Lub zog tensile: Quab yuam yuav tsum tau ncab cov rwb thaiv tsev kom txog thaum tawg.
Elongation: Feem pua nce nyob rau hauv ntev ua ntej tawg.
Cov txiaj ntsig tau muab piv rau ul ul ul 44 pib kom muaj kev yoog raws thiab kav ntev.
3.2 Txwv thiab txiav-los ntawm tsis kam
RauXhhw hauv conduit, rwb thaiv tsev raug sim tawm tsam kev puas siv kev siv reciprocating tuaj lossis cov suab paj nruag. Txiav-los ntawm cov ntawv xeem thov kom siab rau simulate puas tsuaj los ntawm cov npoo ntse.
4. Kev Kuaj Hluav Taws Xob Kev Tshuaj Ntsuam Xyuas
4.1 dielectric lub zog ntsuas
A high-voltage test applies 2,000–3,000 volts to the insulation for one minute. Ua tsis tiav (piv txwv li, arcing) qhia lub zog tsis txaus ntseeg.
4.2 Rwb thaiv tsev tsis kam
Kev ntsuas dej xau tam sim no hla cov rwb thaiv tsev siv manohmeter. Kev tsis tshua muaj kev tiv thaiv kev ya raws ingress lossis khoom tsis xws luag.
4.3 Kev Ntsuam Xyuas Ib nrab
Kuaj tau micro-tawm hauv cov rwb thaiv tsev voids, uas tuaj yeem ua rau ntev kev ua rau muaj kev mob siab ntev. Tseem ceeb rauXhhw mc cableNyob rau hauv high-voltage daim ntawv thov.
5. Kev Ntsuas Hluav Taws Xob thiab Hluav Taws Kev Nyab Xeeb Kev Nyab Xeeb
5.1 Kev Kuaj Mob Hluav Taws Xob
Cov qauv yog rhuab rau 121 degree rau 7-14 hnub, tom qab ntawd rov xeem dua rau tensile lub zog thiab elongation. Xyuas kom cov khoom siv rwb thaiv tsev tau txais cov khoom siv kub ntev.
5.2 Glow-hlau hlau taws kub (GWIT)
Rau ib tug i6 60695-2-13}, ib lub hlau rhuab (txog li 960 degree) tiv toj cov rwb thaiv tsev los txiav txim siab qhov ntsuas kub tshwm sim. Xhhw feem ntau tshaj li 750 degree, ua kom muaj hluav taws kub.
5.3 nplaim taws retardancy (UL Ntsug Hluav Taws Xob)
Rwb thaiv tsev yog nthuav tawm cov nplaim taws qhib rau 30 vib nas this. Tus kheej-extinguishing lub sij hawm thiab char ntev tau ntsuas los txheeb xyuas qhov ua raws.
6. Kev Ntsuam Xyuas Ib Cheeb Tsam thiab Tshuaj Tsuag Tiv Thaiv Kev Ntsuas
6.1 kev sim dej hauv dej
Cov qauv yog submerged nyob rau hauv dej ntawm 75 degree rau 14 hnub. Kev kuaj tom qab, rwb thaiv tsev tsis kam thiab dielectric lub zog yog rov ntsuas dua kom paub meej tias cov dej tsis kam.
6.2 Tshuaj lom neeg
Kev ntsuam xyuas koom tes nrog kev nthuav tawm rwb thaiv tsev kom cov roj, kua qaub, thiab cov kuab tshuaj (t ustm d543). Lub cev hloov pauv thiab lub cev tsis taus kev soj ntsuam.
6.3 corrosion tsis kam
GB/T 2423.51-2020's mixed-gas corrosion test simulates harsh environments, ensuringXhhw tus cwj pwmUa kom tawm tsam oxidation thiab sulfidation.
7. Daim Ntawv Thov-Kev Ntsuas Tshwj Xeeb
7.1 conduit compatibility
RauXhhw hauv conduit, rwb thaiv tsev yog sim rau kev sib xyaw nrog PVC lossis hlau hlau. Kev sib txhuam thiab cov coefficients coefficients yog tshuaj ntsuam kom tiv thaiv kev puas tsuaj thaum nruab lub sijhawm teeb tsa.
7.2 MC CABLE COPS FLEX
Xhhw mc cableUndergoes pheej khoov rau simulate siv tiag-ntiaj teb kev siv. Rwb thaiv tsev yog kuaj xyuas kom tawg lossis sib cais los ntawm tus neeg xyuas pib.
8. Tswjhwm Zoo Hauv Kev Raug
Cov thawj coj tuam ntxhab, zoo li Shanghai Mornbai mornba morn hluav taws xob, xws li cov khoom kuaj ntsuas hluav taws xob (piv txwv li, cov tshuab hluav taws xob txawv teb) kom paub tseeb. Cov kauj ruam tseem ceeb suav nrog:
Hauv-kab kuaj: Lub sijhawm soj ntsuam tiag tiag ntawm cov rwb thaiv tsev tuab thiab ua kom haum.
Kev kuaj xyuas zaum kawg: 100% kev sim rau Dielrictric lub zog thiab txuas ntxiv.
Hauv kev sib tw hauv North American kev ua lag luam, tsuas yog muaj txiaj ntsig zoo, tag nrho cov khoom tiav thiab cov khoom sib tw tuaj yeem sawv.Dongguan Ntau Yam Hlau & Cable Co., Ltd. yog koj txoj kev ntseeg cable tsim cov kws tshaj lij! Peb muab cov thomk xaim, NM-B cable, MC cable, xhhw xaim, UF-B Cable, MTW cable. Txhua yam khoom ua raws li cov ntawv pov thawj U nrog UL43, UL44, ULR469, UL693, UL693, UPROSTION, kho tau cov kab mob siab, xeb tawm tsam, thiab rwb thaiv tsev muaj zog. Lawv tuaj yeem siv nyob rau hauv thaj chaw, kev lag luam, kev lag luam, lub zog thiab lwm thaj chaw. Peb muaj cov kab ntau lawm, cov txheej txheem hauv ntiaj teb ua lag luam thiab kho nruj ua qauv zoo, thiab muab cov neeg siv khoom ncaj qha rau cov nqi sib tw tshaj plaws hauv kev lag luam. Tiv tauj peb kom tau txais cov lus tsocai!