1. Cov khoom siv toughened iav lub zog thiab hlau, siab thermal stability, dua li cov plooj (porcelain) tsis yooj yim rau kev laus thiab lub neej ntev. Qhov nyuaj ntawm kev sib xyaw insulators yog los daws qhov kev laus ntawm cov ntaub ntawv organic nyob rau hauv cov xwm txheej sab nraum zoov, tawg tawg thiab nkag ntawm mandrel. Nws tuaj yeem pom tias cov iav tempered tsis tsuas yog muaj zog ntau dua txhua yam thiab insulating lub zog dua li cov plooj (porcelain), tab sis kuj muaj cov khoom tiv thaiv kev laus zoo tshaj li cov khoom siv organic, uas ua rau lub hauv paus zoo rau kev lag luam txhim khu kev qha ntawm insulators.
2. Cov qauv khoom thiab kev ua qias tuaj
Iav insulator txais cov qauv cylindrical taub hau, bearing Cheebtsam nyob rau hauv uniform quab yuam, muaj cov yam ntxwv ntawm me me, lub teeb yuag, siab zog thiab zoo heev hluav taws xob kev ua tau zoo. Vim hais tias cov linear expansion coefficient ntawm iav yog loj dua li ntawm cov plooj (porcelain), qhov tsos me me dua li ntawm cov khoom siv insulating, thiab nws yooj yim rau kev txuas nrog cov khoom siv hlau thiab cov cement, yog li cov khoom ntawm cov khoom ntawm cov khoom muaj kev ntxhov siab zoo sib xws. Nyob rau hauv ntau yam kev nyab xeeb, nws tsis yooj yim li cov plooj (porcelain) thiab cov insulators sib xyaw ua kom muaj kev ntxhov siab txaus ntshai thiab ua rau muaj kev laus. Nws yog ib qho nyuaj rau kev sib xyaw insulators los daws cov qauv zoo ntawm cov khoom sib txuas. Txawm li cas los xij, cov khoom siv insulators muaj cov pa phem zoo heev thiab feem ntau tsis tas yuav ntxuav. Qhov no zoo heev txo cov nqi kho kab. Cov iav insulators muaj qhov sib txawv loj heev, tsis tshua muaj condensation ntawm qhov chaw thiab muaj zog tiv thaiv thermal kev ntxhov siab los ntawm cov pa phem, yog li lawv tsis tuaj yeem ua rau muaj kev sib tsoo.
3. Mechanical Properties
Lub zog ntawm txhua yam thiab hluav taws xob tsis ua hauj lwm load yog ib qho tseem ceeb Performance index ntawm insulator kev ua tau zoo. Nws tau pom tias lub zog ntawm cov khoom siv hluav taws xob ntawm cov insulators nrog cov txiaj ntsig tsis zoo ntawm qhov ntsuas tau maj mam txo qis nrog kev nce ntawm lub sijhawm khiav. Tom qab 15-20 xyoo ntawm kev ua haujlwm, qhov ntsuas tus nqi ntawm qee cov porcelain insulators qis dua lub Hoobkas kuaj tus qauv tus nqi, thiab tus nqi tsis tsim nyog tau nce ntxiv nrog rau xyoo ua haujlwm. Tom qab qhov kev sim siab ntawm kev vibration qaug zog, cov neeg kho tshuab thiab hluav taws xob lub zog ntawm cov plooj (porcelain insulator) txo qis dua. Kev ruaj ntseg thiab dispersibility ntawm iav insulators yog zoo dua li cov porcelain insulators, thiab cov neeg kho tshuab thiab hluav taws xob lub zog ntawm iav insulators tsis hloov ntau tom qab high-frequency vibration fatigue test. Lub zog ntawm cov khoom siv hluav taws xob thiab hluav taws xob tsis ua haujlwm ntawm cov khoom siv hluav taws xob yog qhov siab, tab sis tom qab ob peb xyoos ntawm kev ua haujlwm, lub zog ntawm cov khoom siv hluav taws xob tau raug tshem tawm rau kev kuaj xyuas lub zog, thiab pom tias lub zog ntawm cov khoom sib xyaw insulators kuj txo qis rau qee yam. qhov twg.
4. xob laim flashover kev ua tau zoo
xob laim flashover tshwm sim ntawm cov insulators hauv ob qhov xwm txheej hauv qab no: Kev tawm tsam: Yog tias xob laim tawm tsam tus pej thuam lossis tus pas nrig ncaj qha, nws yuav ua rau overvoltage ntawm cov rwb thaiv tsev ntawm kab. Thaum qhov tam sim no high voltage tshaj qhov poob siab tawm voltage ntawm cov hlua insulator, lub insulator yuav flashover. Winding Strike: Txawm hais tias muaj ib qho hluav taws xob hauv av saum cov kab hluav taws xob siv hluav taws xob, qee zaus xob laim hla nws thiab cuam tshuam ncaj qha rau cov xaim, uas yog winding strike. Thaum winding strike tshwm sim, xob laim yuav tsim ntau pua txhiab volts ntawm xob laim overvoltage ntawm kab. Yog hais tias lub overvoltage tshaj qhov cuam tshuam flashover voltage ntawm cov hlua insulator ntawm kab, uas yog, tnws insulator hlua yuav flashover thiab ua rau txoj kab mus txawv tebchaws. Raws li kev ua haujlwm dhau los, cov hluav taws xob hluav taws xob tsis ua haujlwm ntawm cov khoom siv hluav taws xob sib xyaw yog siab dua li cov iav iav insulators hauv cov kab sib kis, tshwj xeeb tshaj yog nyob rau hauv cov kab sib txuas nrog qhov voltage ntawm 110kV thiab hauv qab no. xob laim flashover ntawm insulators yuav ua rau tripping ntawm kis kab, uas yog heev unfavorable rau kis tau tus mob thiab fais fab mov. Yog li ntawd, peb yuav tsum sim los txhim kho cov kev tiv thaiv xob laim ntawm cov kab sib kis. Lub ntsiab tiv thaiv kev tiv thaiv xob laim yog: teeb tsa xob laim kom txo cov av tiv thaiv ntawm tus pej thuam; Erection ntawm coupling hauv av xaim; Txais cov rwb thaiv tsev tsis sib npaug; Siv arc suppression coil grounding: siv kab ntes: ntxiv dag zog rau rwb thaiv tsev thiab lwm yam.
5. Kev ua haujlwm tsis zoo
Rau kev xaiv cov kab hluav taws xob hluav taws xob, qhov deterioration ntawm insulators yuav tsum tau xav txog. Raws li kev ua haujlwm tam sim no, qhov tsis zoo ntawm cov plooj (porcelain insulators) tau tshwm sim yog "zero tus nqi" thiab "tus nqi qis" ntawm lub taub hau stealth. Rau cov porcelain insulators nrog xoom lossis tus nqi qis, nws yog ib qho tsim nyog yuav tsum tau sim lawv ntawm tus ncej ib los ntawm ib qho, uas yuav tsum muaj ntau lub zog thiab cov khoom siv txhua xyoo. Tsis tas li ntawd, qhov tseeb ntawm kev sim tau cuam tshuam zoo heev los ntawm kev paub ntawm cov neeg ua haujlwm, atmospheric humidity, phau ntawv hloov ntawm qhov sib txawv deb thiab lwm yam. Ntawm qhov tod tes, qhov deterioration tus nqi ntawm porcelain insulators belongs rau lig raug. Nyob rau hauv qhov kev txiav txim ntawm cov neeg kho tshuab thiab hluav taws xob load, qhov deterioration tus nqi yuav maj mam nce nrog nce lub sij hawm khiav. Cov iav insulators muaj cov yam ntxwv ntawm xoom tus nqi ntawm tus kheej-detonation, thiab tus kheej-detonation tus nqi ntawm iav insulators ua haujlwm nyob rau hauv cov cheeb tsam uas muaj kuab paug loj yuav nce. Tus kheej-detonation tus nqi ntawm iav insulators belongs rau thaum ntxov raug, thiab nrog rau kev nce ntawm lub sij hawm ua hauj lwm, tus self-detonation tus nqi yog tsawg xyoo los ntawm lub xyoo. Ntev npaum li kev tshuaj xyuas ib ntus tau ua tiav, cov iav insulators tsis raug tuaj yeem pom thiab hloov lub sijhawm yam tsis xav tau ntauwd nce toj. Kev ntseeg tau ntawm kev ua haujlwm ntawm cov khoom sib xyaw ua ke zoo dua li cov plooj (porcelain) thiab iav insulators, tab sis nrog lub sijhawm ua haujlwm nce ntxiv, cov khoom tsis zoo ntawm cov organic yuav maj mam ua qhov tseem ceeb.
6. Anti-aging tus nqi
Nrog rau qhov nce ntawm kev khiav hauj lwm lub neej, ntau hom insulators muaj teeb meem kev laus rau qee qhov. Lub peev xwm los tiv thaiv kev laus ntawm cov plooj (porcelain insulators) muaj zog, tab sis kev laus zuj zus ntxiv thiab hnyav dua nrog qhov nce ntawm lub sijhawm khiav. Lub zog hluav taws xob ntawm iav rwb thaiv tsev feem ntau tseem zoo ib yam thoob plaws hauv kev ua haujlwm, thiab nws cov txheej txheem kev laus kuj qeeb; Synthetic insulators yog tsim los ntawm cov khoom siv organic uas muaj hnub nyoog sai dua li cov ntaub ntawv inorganic xws li porcelain thiab iav. Kev laus ntawm cov insulators yuav ua rau kev puas tsuaj ntawm lawv cov kev ua tau zoo hauv ntau yam. Yog li ntawd, qhov teeb meem kev laus yuav tsum tau xav txog hauv kev xaiv thiab kev saib xyuas ntawm cov insulators.