Cross-txuas polyethylene (XLPE) tau dav siv rau qhov siab voltage cable rwb thaiv tsev cov khoom vim nws cov khoom hluav taws xob zoo thiab muaj zog zoo. Cov tshuaj tiv thaiv peroxide sib txuas ua ke yog cov txheej txheem ib txwm siv rau cov hluavtaws hluav taws xob hluav taws xob ntau polyethylene cable rwb thaiv tsev; txawm li cas los xij, tus txheej txheem no muaj ntau yam tsis zoo (e.g., kev ua haujlwm qeeb qeeb, lub zog siv, kev siv lub tshuab ua ntej sib txuas ua ke ntawm cov khoom saum npoo ntawm lub qhov hluav taws xob tuag thaum lub sijhawm ntev ntev).
Cov txheej txheem ultra-violet (UV) hluav taws xob hla kev sib txuas tus txheej txheem yuav dhau los ua tus neeg sib tw rau kev tsim cov siab ntawm cov khoom siv hluav taws xob ntau cable XLPE.With cov kev pab los ntawm cov duab-pib, UV lub zog tuaj yeem nkag tau yooj yim rau lub rwb thaiv tsev phab ntsa thiab ua rau muaj kev sib txuas thaum phab ntsa insulating yog pob tshab vim tias polyethylene muaju yaj tom qab cua sov los ntawm kev rho tawm.
Qhov zoo ntawm UV hla kev sib piv rau cov txheej txheem ib txwm muaj xws li kev ceev nrawm, thaj chaw tawg me me, txuag hluav taws xob, thiab kev tsim tawm tsis yog thermosensitive. Cov kev tshawb nrhiav sim tau pom tias qhov ntsuas ntawm UV hluav taws xob tiv thaiv kev sib txuas ntawm cov hluav taws xob sib txuas tsis yog tsuas yog cuam tshuam los ntawm lub zog, hluav taws xob hluav taws xob ntawm lub teeb muaj mercury, thiab UV teeb emitting diode (LED) hybrid system, tab sis kuj yog hom thiab cov ntsiab lus ntawm photoinitiator thiab crosslinker. Cov.
Nrog rau kev siv ntawm cov sib txuam ua tau zoo crosslinker triallyl isocyanurate (TAIC), txoj kev hla cov txheej txheem ntawm polyethylenentawmUV hluav taws xob tuaj yeem ua kom ceev npaum li milli-vib nas this, qhov kev sib tshooj hla no tsuas yog nyob ntawm cov sij hawm ib feeb xwb nrog kev siv cov duab thaij duab tsuas yog.
Txawm li cas los xij, cov tshuaj tiv thaiv mechanism ntawm polyethylene cross-txuasntawmUV hluav taws xob nyob ntawm cov atomic thiab cov qib theem tsis tau pom tseeb meej txog tam sim no, tshwj xeeb tshaj yog siv cov khoom hla tawm. Yog li, txhawm rau elucidate cov tshuaj ua rau muaj tshwm sim thaum lub hnub ci UV hluav taws xob hla kev sib txuas ntawm polyethylene rau kev txhim kho ntawm cov rwb thaiv tsev phab ntsa cov ntaub ntawv rau cov xov hluav taws xob hluav taws xob ntau, lub luag haujlwm ua si los ntawm crosslinker yuav tsum to taub kom meej meej.
Raws li qhov chaw siab thiab divergent hluav taws xob, kev tso tawm ib feem thiab rwb thaiv tsev tsis ua haujlwm yog feem ntau pib los ntawm hluav taws xob ntoo.
Cov ntsuas hluav taws xob ntawm XLPE ntxig fais fab txuas hluav taws xob tau txwv rau 500 kV txawm tias XLPE raug tsim nrog cov thev naus laus zis zoo thev naus laus zis. Kev tshawb fawb pom tau tias qee cov organic polycyclic uas muaj ntxhiab sib xyaw los yog cov muaj benzophenone zoo li cov qauv, uas ua haujlwm ua voltage voltage, tuaj yeem nce qhov tsis kam rau hluav taws xob hluav taws xob zoo.
Siv cov kev tshawb fawb theoretical, peb pab pawg ua ntej elucidated cov txheej txheem ntawm cov uas muaj ntxhiab carbonyl li voltage stabilizers rau nce qhov hluav taws xob tawg lub zog ntawm XLPE nyob rau xyoo 2013.Acetophenone yog ib qho piv txwv ntawm cov carbonyl uas muaj ntxhiab uas tuaj yeem ua haujlwm raws li voltage stabilizer; txawm li cas los xij, nws yooj yim migrates tawm ntawm polymeric txhoj. Yog li, cov carbonyl uas muaj ntxhiab thiab benzil-hom sib txuas nrog cov alkoxy loj dua tuaj yeem ua kom muaj qhov sib txuam nrog cov polyethylene matrix thiab txhim kho hluav taws xob cov ntoo hluav taws xob pib qhov tseem ceeb.
Qhov no tau tshoov peb lub sijhawm los tshawb xyuas yog tias polyethylene saw hlau tuaj yeem tsoo nrog voltage stabilizer cov lwg me me kom cov khoom lag luam nyob ruaj khov thaum lub caij UV hluav taws xob hla kev sib txuas rau cov khoom tsim ntawm XLPE rwb thaiv tsev cov ntaub ntawv muaj cov ua yeeb yam ntev.