Ii-insulators zohlobo lokunqunyanyiswa ngomatshini zibamba i-conductor ngaloo ndlela zikwahlula ekudibaneni nomhlaba kunye nabanye abaqhubi. Ukumiswa kweZiyong kuxhasa iintlawulo zoomatshini kunye nombane ukusuka kwi-10,000 ukuya kwi-50,000 lbs. kwaye ziyafumaneka kuwo onke amanqanaba oxinzelelo, kuzo zombini iinkqubo zokusasaza nezothumelo.
Ukumiswa kwe-porcelain yenzelwe ngokukodwa ukuhambelana nemigangatho ye-ANSI Class (C29.2-1992), iqinisekisa ukusebenza kwemisebenzi yombane kunye neyomatshini, kunye nokwanelisa zonke iinkcukacha ze-dimensional kunye neemfuno ezisebenzayo.