Piv nrog cov tsoos ceramic / porcelain thiab iav insulators, cov khoom siv insulators (tseem hu ua polymeric insulators los yog silicon roj hmab insulators) yog tus cwj pwm los ntawm kev ua haujlwm zoo antifouling, me me, lub teeb yuag, siab mechanical zog, xoom tshuaj xyuas, tsawg dua kev tu, kev thauj mus los yooj yim, thiab lwm yam. Cov txiaj ntsig zoo no tau lees paub thoob ntiaj teb.
Thaum lub sijhawm ua haujlwm tiag tiag ntawm cov phiajcim hluav taws xob, txawm li cas los xij, muaj ntau yam teeb meem ntawm cov khoom siv insulators, xws li nkig kawg ntawm cov tub ntxhais qws vim cov khoom siv tsis zoo, tsis pom kev flashover, tsis zoo xob laim, kev laus ntawm cov khoom siv roj hmab silicone, thiab lwm yam.
Nyob rau hauv xyoo tas los no, thaum ua qhov kev ntsuam xyuas icing ntawm cov khoom siv insulator, STRI lub chaw kuaj mob hauv Sweden thiab Chongqing University hauv Suav teb kuj pom tias cov dej khov ua rau daim tiab deformation, lub zos arc kub hnyiab, thiab ib feem poob ntawm hydrophobicity uas nyuaj rau rov qab los, thiab qhov ntawd. Nyob rau hauv tib lub icing mob lub flashover (nrog) voltage ntawm cov khoom insulator yog tsawg dua li ntawm ceramic thiab iav insulator hlua ntawm tib theem voltage.
Lub ntsiab yog vim li cas rau cov teeb meem no yog vim hais tias nrog lub composite insulator npog nrog dej khov, cov ntug dej khov tau yooj yim txuas ib feem ntawm daim tiab, ua kom luv lub creepage nrug, thiab tawm feem ntau ntawm voltage yuav tsum tau yug los ntawm huab cua clearance ntawm cov dej khov ntug thiab lub tsho nyob ze. lub high-voltage kawg ntawm cov khoom insulator vim yog ib qho kev ncua deb ntawm lub tsho thiab lub tsho me me txoj kab uas hla.
Thaum lub sij hawm hluav taws xob simulation ntawm cov hluav taws xob sib xyaw thiab cov kab hluav taws xob cov kab hluav taws xob ib txwm muaj, Chongqing University pom tias nyob rau hauv tib lub icing mob, qhov siab tshaj plaws ntawm cov hluav taws xob nyob rau ntawm qhov chaw yog kwv yees li 5kV / cm siab dua li ntawm cov porcelain insulator hlua.
Xws li hluav taws xob siv hluav taws xob siab ua rau hauv cheeb tsam arcs raws qhov sib txawv ntawm huab cua, thiab cov arcs hauv zos tuaj yeem nkag mus tau yooj yim ntawm cov insulator, yog li tsim lub flashover. Qhov teeb meem ntawm kev poob qis hauv kev ua haujlwm hluav taws xob ntawm cov khoom siv hluav taws xob sib xyaw ua ke los ntawm cov dej khov tau nyiam cov neeg tshawb fawb tshawb fawb hauv tsev thiab txawv teb chaws.