Le divayisi ebanzi yokuvikela nokulawula ye-microcomputer ifanele amanethiwekhi wamandla we-35KV nangaphansi, futhi ihlinzeka ngokuvikela, ukulawula, ukulinganisa nemisebenzi yokuqapha izintambo zokudlulisa, ama-transformer, ama-capacitor, amamotho kanye nezinye izinto zokusebenza eziyinhloko.