Kev ua tau zoo ntawm cov khoom siv insulators
Composite insulators muaj zog tiv thaiv huab cua thiab kev ua haujlwm zoo ntawm tus kheej hauv cov khoom. Nws tsuas yog yuav tsum tau kuaj xyuas cov pa phem ib zaug txhua 4-5 xyoo, thiab lub sijhawm tu thiab kev sib txuas yog luv dua. Vim lub siab tensile lub zog ntawm mandrel, tag nrho qhov hnyav ntawm cov khoom insulator yog lub teeb heev. Lawv qhov hnyav tsuas yog 10-20 feem pua ntawm cov porcelain insulator hlua ntawm tib theem voltage. Nyob rau hauv tib qhov ntsuas hluav taws xob, lawv qhov ntev tuaj yeem ua kom luv li ntawm 10 feem pua, uas tuaj yeem txo qis kev ua haujlwm ntawm kev thauj mus los thiab cov neeg ua haujlwm ua haujlwm.
Composite insulators muaj ntau qhov zoo, tab sis kuj muaj qhov tsis zoo xws li poob ntawm hydrophobicity, nkig thiab tawg mandrels, kev pheej hmoo ntawm xob laim ntaus thiab noog ntog, uas tag nrho ua rau cov insulators tsis zoo.
Vim tias qhov me me ntawm txoj kab uas hla ntawm qhov sib xyaw insulator, nws qhov tsawg kawg nkaus arc nrug yog me dua li ntawm cov porcelain insulator hlua ntawm tib qhov ntev, thiab cov qib hluav taws xob kuj tseem me dua li qhov ntev ntawm cov porcelain insulator hlua. .
Tom qab xob laim tawm tsam, tsuas yog cuam tshuam rau cov khoom siv hluav taws xob sib xyaw yog cov hluav taws xob hluav taws xob dawb. Tsis muaj kev hloov pauv hauv lawv cov khoom insulating. Tab sis kev saib xyuas yuav tsum tau them rau corrosion thaum kawg ntawm qhov haum.
Qhov kev ncua deb ntawm cov rwb thaiv tsev sab hauv ntawm cov khoom siv hluav taws xob sib xyaw yog yuav luag sib npaug ntawm cov khoom siv hluav taws xob sab nraud, thiab nws tau tsim los ua ib feem ntawm cov ntaub ntawv pov thawj insulator pawg, yog li tsis tas yuav tsum tau sim cov xoom-tus nqi insulator, uas ua rau kom txo tau cov nqi hluav taws xob ntau. insulation coefficient ntawm insulator. rwb thaiv tsev. Kev ua haujlwm thiab kev saib xyuas kev ua haujlwm.
Composite insulators muaj silicone roj hmab sheath thiab sheath cov ntaub ntawv uas tsis tshua muaj zog nto. Qhov sib xyaw insulator muaj qhov sib txawv loj ntawm qhov deb, me me txoj kab uas hla, thiab qhov chaw hydrophobic tsiv teb tsaws. Txawm hais tias nyob rau hauv qhov chaw ntub dej thiab muaj kuab paug, qhov ntws ntawm qhov sib xyaw insulators tsis tsim cov yeeb yaj kiab dej txuas ntxiv. Yog li ntawd, nws yog superior rau porcelain insulators nyob rau hauv cov nqe lus ntawm cov pa phem kuj.
Cov khoom tseem ceeb ntawm cov khoom siv insulators yog silicone roj hmab sheath. Silicone roj hmab yog tsim los ntawm kev sib txuas cov polymers ntawm polydimethylsiloxane thiab organic oxygen compounds. Cov saw tseem ceeb yog tsim los ntawm silicon-oxygen bonds. Vim yog lub zog siab ntawm daim ntawv cog lus silicon-oxygen, nws yog thermally ruaj khov thiab tuaj yeem ua haujlwm ntawm qhov kub ntawm -100 mus rau 350 degree. Silicone roj hmab muaj qhov zoo ozone tsis kam, thaum butadiene-propylene-butadiene roj hmab yog ib qho yooj yim tawg, thiab nyob rau hauv 150ppm ozone siab ntawm chav tsev kub, silicone roj hmab tuaj yeem kav ntev li ob peb lub hlis yam tsis muaj kev tawg.
