Tsib lub laj thawj tseem ceeb thiab kev paub txog kev tiv thaiv
Cov txheej rwb thaiv tsev ntawm cov kab hluav taws xob yog qhov cuam tshuam tseem ceeb los xyuas kom muaj kev nyab xeeb ntawm cov kab hluav taws xob. Thaum nws ua tsis tiav, nws tuaj yeem ua rau xau, luv Circuit Court, tripping, thiab txawm tias hluav taws kub sib tsoo. Cable rwb thaiv tsev tsis tshua muaj tshwm sim tam sim ntawd; Nws feem ntau tshwm sim los ntawm qhov ntev - lub sij hawm cumulative yam xws li hluav taws xob teb, kub kub, mechanical sab nraud quab yuam, ib puag ncig corrosion, thiab kev tsim kho tsis xws luag. Kab lus no piav qhia txog cov laj thawj tseem ceeb ntawm kev rwb thaiv tsev tsis ua haujlwm thiab kev tiv thaiv txoj hauv kev yooj yim thiab nrov.
1. Hluav taws xob kev nyuaj siab laus: Tsis pom hluav taws xob yaig
Cov kab hluav taws xob ua haujlwm nyob rau hauv hluav taws xob ntev ntev, thiab cov npuas me me, impurities, thiab tus neeg xyuas pib burrs nyob rau hauv lub rwb thaiv tsev tuaj yeem ua rau lub zog hluav taws xob hauv cheeb tsam, uas ua rau cov paug hauv zos. Qhov kev tso tawm tsis muaj zog no tsis pom ntawm qhov muag liab qab tab sis yuav ua rau cov qauv molecular ntawm cov khoom siv rwb thaiv tsev tsis tu ncua, maj mam tsim cov carbonized conductive raws. Nyob rau tib lub sijhawm, kev ua haujlwm rwb thaiv tsev tsis tu ncua poob, nws thiaj li ua rau tawg thiab luv luv. Tsis tas li ntawd, xob laim tawm thiab tam sim no overvoltages tsim los ntawm kev hloov pauv tuaj yeem yooj yim tawg los ntawm qhov tsis muaj zog rwb thaiv tsev txoj haujlwm, ua rau tsis ua haujlwm tam sim.
2. Thermal stress aging: Kub kub ho shortens cable lifespan
Kev ua haujlwm ntau dhau, kev sib tsoo ntom ntom, thiab tsis muaj cua sov dissipation tuaj yeem ua rau kub nce. Rwb thaiv tsev yas yog siab - cov ntaub ntawv molecular uas ntshai tshaj plaws ntawm qhov kub thiab txias tsis tu ncua. Kev lag luam cov cai qhia tau hais tias rau txhua txhua 8-10℃nce nyob rau hauv qhov kub thiab txias, cable lub neej yog ncaj qha halved. Cov kub kub yuav ua rau cov rwb thaiv tsev tawv, ua nkig, thiab tawg, txo cov rwb thaiv tsev. Rov ua dua qhov hloov pauv txias thiab kub kub yuav ua rau cov khoom siv qaug zog, thiab thermal aging yog irreversible, thiab cov rwb thaiv tsev puas tsis tuaj yeem rov qab los ntawm nws tus kheej.
3. Kev puas tsuaj rau cov khoom siv: Cov kev tsim kho thiab kev ua haujlwm ntau tshaj plaws
Thaum lub sij hawm tso cable, kev khoov ntau dhau, rub, dov, backfilling nrog cov pob zeb crushed, thiab ntev - lub sij hawm kev co thiab kev sib haum xeeb tuaj yeem ua rau me me tawg ntawm cov txheej rwb thaiv tsev. Tsis muaj qhov pom tseeb ua txhaum thaum xub thawj, tab sis dej vapor thiab huab cua yuav maj mam nkag mus rau hauv cov kab nrib pleb, ua rau cov dej noo nqus, tawm kev laus. Qhov kev ntxhov siab ntawm cov kab sib txuas thiab cov chaw nres tsheb yog qhov tsis muaj zog uas cov rwb thaiv tsev puas thiab qhov tsis zoo yuav tshwm sim.
4. Ib puag ncig corrosion: Ntev- lub sij hawm hnav thiab tsim kua muag los ntawm ib puag ncig sab nraud
Nyob rau hauv qhov chaw ntub dej hauv av, cov hlua cable yuav nqus dej, ua rau cov rwb thaiv tsev noo noo nqus, xau, thiab txheej txheej - los ntawm - txheej laus; Nyob rau hauv qhov chaw sab nraum zoov, ultraviolet rays los ntawm lub hnub ci yuav ua rau cov tawv nqaij sab nrauv flake, tawg, thiab tawv, thiab cov rwb thaiv tsev muaj peev xwm yuav maj mam poob. Hauv thaj chaw tshuaj lom neeg, ntsev, thiab alkaline, acids, roj, thiab corrosive gases yuav ncaj qha ua rau cov txheej txheem rwb thaiv tsev, ua rau kev laus mus tas li thiab tsis ua haujlwm.
5. Khoom thiab txheej txheem tsis xws luag: inherent deficiencies, laus ntxov ntxov
Tsawg- cov khoom siv hluav taws xob zoo tsis huv, cov rwb thaiv tsev tuab tsis sib xws, thiab muaj ntau cov npuas sab hauv. Lub cable nws tus kheej muaj qhov tsis zoo siab tsis kam thiab kev laus ua haujlwm. Ntawm -kev tsim kho ntawm qhov chaw tsis yog tus qauv, xws li kev sib koom ua ke ntxhib, txiav kev puas tsuaj rau lub rwb thaiv tsev, sealing tsis zoo, thiab tsis muaj dej tsis txaus, uas yog qhov ua rau ntawm - qhov chaw tsis ua haujlwm. Kev lag luam txheeb cais qhia tias ntau dua 60% ntawm cov kab hluav taws xob rwb thaiv tsev tsis ua haujlwm tshwm sim ntawm kev sib koom ua haujlwm.
6. Kev tiv thaiv yooj yim thiab siv tau zoo
Txhawm rau kom ntev lub neej ntawm cov cables thiab txo cov rwb thaiv tsev tsis ua haujlwm, tsuas yog tsom mus rau tsib lub ntsiab lus tseem ceeb hauv qab no: xaiv cov cables ua raws thiab tsim nyog thiab siv rau hauv qhov chaw tsim nyog; standardize cov txheej txheem nteg, zam mechanical puas, thiab meticulously kaw cov pob qij txha; nruj me ntsis txwv tsis pub ntev - lub sij hawm overloading ua hauj lwm los xyuas kom meej lub tshav kub dissipation ntawm cov kab; siv cov dej tsis zoo, tiv thaiv hnub ci, thiab tiv thaiv- tiv thaiv corrosion rau sab nraum zoov thiab hauv av cables; ua cov kev ntsuas rwb thaiv tsev tsis tu ncua, ntsuas qhov ntsuas kub infrared, thiab kev kuaj pom ib nrab los txheeb xyuas cov teeb meem kev laus ua ntej.
