Cov ntaub ntawv insulating feem ntau muab faib ua peb pawg:
⑴ Inorganic insulating cov ntaub ntawv: mica, porcelain, asbestos, marble, iav, sulfur, thiab lwm yam. Siv rau winding rwb thaiv tsev ntawm motors thiab cov khoom siv hluav taws xob, hloov soleplates thiab insulators, thiab lwm yam.
(2) Organic insulating cov ntaub ntawv: roj hmab, resin, shellac, paj rwb xov paj ntawv, hemp, txhob lo lo ntxhuav, rayon raj, thiab lwm yam.
(3) Cov khoom siv insulating sib xyaw: tsim cov khoom siv insulating ua tiav los ntawm ob yam khoom siv insulating.