1. conductivity ntawm tooj liab
Tooj liab yog cov khoom siv dav siv ntau tshaj plaws thiab ib qho ntawm cov khoom tseem ceeb tshaj plaws yog nws cov khoom siv hluav taws xob zoo heev. Tsis tas li ntawd, tooj liab muaj ntau nyob rau hauv reserves tshaj kub thiab nyiaj, thiab tus nqi yog tsim nyog, yog li nws yog tsim rau ntau yam khoom xws li nyob ntawm tej thiab cables, connector terminals, busbars, thiab txhuas thav ntawv.
2. Corrosion kuj ntawm tooj liab
Tooj liab muaj qhov zoo corrosion kuj thiab tsis yooj yim rau oxidized hauv huab cua qhuav. Nyob rau hauv cov huab cua ntub uas muaj cov pa roj carbon dioxide, ib txheej ntawm cov tshuaj lom yooj yim tooj liab carbonate (patina) tau yooj yim tsim rau ntawm qhov chaw. Cov yeeb yaj kiab no tuaj yeem tiv thaiv tooj liab los ntawm kev corroded.
3. Lub ductility ntawm tooj liab
Tom qab kev txhim kho ntawm cov tuam txhab tooj liab nrog cov cuab yeej paub tab thiab cov cuab yeej siv siab heev, tooj liab nrog cov ductility zoo heev tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov kab hluav taws xob. Piv txwv li, ntawm cov thawv sib txuas thiab cov terminals, tooj liab tuaj yeem khoov, twisted thiab rub tsis tau ncab lossis tawg. Rau cov cables loj, stranded tooj liab hlau feem ntau yog siv (raws li qhov tsis zoo ntawm cov khoom hlau), uas ua rau lub cable hloov tau yooj yim dua thiab muaj ze li ntawm cov conductivity ib yam li ib leeg-stranded (khoom) neeg xyuas pib.
Yog li ntawd, cov xov hlau ua los ntawm cov khoom ntawm tooj liab yog siv dav hauv kev lag luam hluav taws xob thiab hluav taws xob (xws li cov kab hluav taws xob, cov kab xov tooj thiab cov cables network). Yog tias cov tooj liab siv hauv cov khoom no yog cov khoom zoo, cov khoom no tsis tsuas yog ua tau zoo, tab sis kuj muaj lub neej ntev ntev.
Txawm li cas los xij, txhawm rau muag ntawm tus nqi qis thiab txeeb khw, qee cov tub lag luam uas tsis muaj kev ntseeg siab yuav txuag tau cov nqi tsim khoom, txiav cov fab, siv tooj liab-clad hlau, tooj liab-clad aluminium thiab lwm yam tooj liab los yog tsim cov xov hlau tsis tau raws li tus qauv.
Xws li ib tug hlau muaj ib tug luv luv lub neej, uas yuav ua rau attenuation ntawm lub teeb liab kis tau tus mob, nce kev cuam tshuam nyob rau hauv txoj kev, yuam kev nyob rau hauv cov ntaub ntawv kis tau tus mob, thiab loj hem rau tus kheej thiab cov khoom muaj kev ruaj ntseg.
