Ingaphezulu lensimbi kufanele libe bushelelezi futhi lingagqwali.Ukugqwala akufanele kuqhekeke noma kuxebuke.Ibhokisi lepulasitiki akufanele lingalingani, libe luhlaza noma libe nemifantu noma umonakalo.I-insulation yezingxenye ezahlukene eziqhuba ugesi kufanele ithwale umsebenzi we-voltage yokuhlola futhi lapho
awekho ama-punctures kuwo.
I-90% yendawo izombozwa nge-solder.Ngaphandle kokuguqulwa kwesisekelo,
inganelisa ukusebenza kwemishini, kagesi.Isenzo ngaphandle kokuvinjwa
umkhuba, inkinobho ivumela ebusweni bafake