Cov chav kawm rwb thaiv tsev hais txog lub peev xwm ntawm cov khoom siv insulating kom tiv taus cua sov, uas yog qhov tseem ceeb hauv ntau yam kev siv, los ntawm cov tshuab hluav taws xob mus rau kev tsim vaj tsev. Nws kuj yog ib qho ntawm cov tsis tseem ceeb ntawm hluav taws xob lub cev muaj zog. Kev faib tawm ntawm cov chav kawm rwb thaiv tsev yog qhov tseem ceeb los xyuas kom meej tias cov khoom tuaj yeem tiv taus qhov kub thiab txias yam tsis muaj degrading lossis poob nws cov txiaj ntsig. Cov chav kawm rwb thaiv tsev feem ntau muab faib ua ntau pawg: A, E, B, F, H, Y, thiab C, txhua tus sawv cev rau qib sib txawv ntawm qhov kub thiab txias.
Hauv cov khoom siv hluav taws xob xws li cov tshuab hluav taws xob,peb theem induction ac motorsthiab lwm series ntawm hluav taws xob motors, cov ntaub ntawv rwb thaiv tsev sawv cev rau qhov muaj qhov tsis zoo. Cov ntaub ntawv no tshwj xeeb yog raug rau qhov kub thiab txias, uas ua rau lawv cov laus thiab kev puas tsuaj. Cov ntaub ntawv rwb thaiv tsev sib txawv muaj qhov sib txawv ntawm cov khoom siv hluav taws xob sib txawv, thiab cov khoom siv hluav taws xob siv cov ntaub ntawv rwb thaiv tsev sib txawv muaj qhov sib txawv ntawm qhov kub thiab txias. Yog li, cov khoom siv hluav taws xob dav dav muaj qhov ntsuas kub siab tshaj plaws ntawm kev ua haujlwm.
Kev faib tawm pib nrog Class A, uas tsim nyog rau cov ntawv thov kub qis, thiab Class C rau qhov kub siab tshaj plaws. Txhua chav kawm zoo sib xws rau cov rwb thaiv tsev qhov kub thiab txias, txhais tau hais tias cov chav kawm siab dua, cov khoom muaj peev xwm tiv taus cua sov ntau dua yam tsis muaj kev cuam tshuam nws cov qauv kev ncaj ncees. Piv txwv li, Class B rwb thaiv tsev tuaj yeem tiv taus qhov kub txog li 130 ° C, thaum Class H tuaj yeem tiv taus kub tshaj 180 ° C.
Cov ntaub ntawv rwb thaiv tsev tuaj yeem muab faib ua peb pawg: roj, kua, thiab khoom. Gas rwb thaiv tsev feem ntau yog siv cov huab cua los yog lwm yam gases los muab thermal kuj thiab feem ntau yog siv nyob rau hauv daim ntawv thov xws li ob-glazed qhov rais. Cov rwb thaiv tsev ua kua, ntawm qhov tod tes, suav nrog cov khoom siv xws li roj lossis gels uas sau rau hauv qhov chaw thiab muab lub thermal thaiv. Cov khoom rwb thaiv tsev muaj ntau yam khoom siv, suav nrog ua npuas dej, fiberglass, thiab roj hmab, uas feem ntau siv rau hauv kev lag luam thiab chaw nyob.
Nkag siab txog kev faib cov qib thermal rwb thaiv tsev yog qhov tseem ceeb rau cov engineers, architects, thiab builders vim nws ncaj qha cuam tshuam rau kev ua tau zoo thiab kev nyab xeeb ntawm thermal tswj nyob rau hauv ntau lub tshuab. Xaiv qhov zoo thermal rwb thaiv tsev qib kom ntseeg tau tias cov khoom ua tau zoo nyob rau hauv cov xwm txheej tshwj xeeb, thaum kawg ua tiav kev txuag hluav taws xob thiab txhim khu kev ruaj ntseg. Raws li kev siv thev naus laus zis, kev txhim kho cov ntaub ntawv thermal rwb thaiv tsev tshiab txuas ntxiv mus, cog lus tias yuav ua tau zoo dua thiab ruaj khov rau yav tom ntej.