Okwamakhondaktha avumelana nezimo futhi aqinile
·Ifanele zonke izinto zokufakelwa
·Ubude bokuhlubula bungalungiseka ngesitobhi sokuphela
·Ukuvuleka okuzenzakalelayo kwemihlathi ebambayo ngemva kokukhumula
·Awekho ama-conductor angawodwana
·Iguquguquka kuma-insulation thicknesses ahlukahlukene
·Izintambo ezifakwe kabili ezinyathelweni ezimbili zenqubo ngaphandle kokulungiswa okukhethekile
·Akukho ukudlala kuyunithi yokusika ezilungisayo