Ilaphu elimnyama elithe nkqo libizwa ngokuba iiblades zixhonywe ngokuthe nkqo kuloliwe ongaphezulu, kwaye zinokufihlwa ngokukhululekileyo ngasekhohlo nasekunene ukufezekisa injongo yomthunzi.Umgangatho welaphu elimnyama elithe nkqo liya kuba nempembelelo enkulu ekusebenziseni ixesha elizayo, ngoko xa kuthengwa ikhethini elithe nkqo, kufuneka sinikele ingqalelo kumgangatho welaphu elimnyama elithe nkqo.Nanga amanye amacebiso okuthenga ilaphu leemfama ezithe nkqo:
1.Umbala wekhethini elithe nkqo kufuneka ulungelelaniswe nombala wegumbi lonke.Ukuba ifenitshala imnyama ngesitayela, ngoko ke ikhethini elithe nkqo kufuneka lisebenzise iimveliso ezinombala okhanyayo, ngaphandle koko imibala emnyama kakhulu iya kwenza abantu bazive bedakumbile.
I-2.Isitayela selaphu le-blind blinds silula, sifanelekile kwiindlela zokuhombisa zanamhlanje, ezilula okanye zaseMelika.Kufanelekile ngakumbi ukufakwa kwendawo kunye neefestile ezisezantsi ukuya kwisilingi.