Yintoni uKhuseleko lwe-IEC
Iiklasi zoKhuseleko ze-IEC: I-IEC (iKomishoni ye-Electrotechnical International) ngumbutho wamazwe ngamazwe obeka imigangatho yokhuseleko kwindawo ye-electrotechnology. I-Classition ye-I kunye ne-Class ye-II yokufaka igalelo ibhekisela kulwakhiwo lwangaphakathi kunye nokufakelwa kombane kombane. Le migangatho yaphuhliswa ukukhusela umsebenzisi kumothuko wombane. Isetyenziswa kwishishini lokuvelisa izixhobo zombane ukwahlula phakathi kweemfuno zokudityaniswa komhlaba ezikhuselayo zezixhobo.
Udidi I: Ezi zixhobo kufuneka zibe ne-chassis yazo eqhagamshelwe kumhlaba wombane (umhlaba) ngumqhubi womhlaba. Impazamo kwisixhobo esibangela ukuba umqhubi ophilayo aqhagamshelane ne-casing iya kubangela ukuhamba kwangoku kwi-conductor yomhlaba. Umsinga kufuneka ukhubekise nokuba sisixhobo esisebenza ngaphezulu okanye isiphambanisi sesekethe esishiyekileyo, esiya kuphelisa unikezelo lombane kwisixhobo.
Udidi II: Udidi lwe-2 okanye isixhobo sombane esifakwe kabini senziwe ngendlela yokuba ayifuni (kwaye akufanele sibe nayo) uqhagamshelo olukhuselekileyo kumhlaba wombane (umhlaba).
Udidi lwe-III: Yenzelwe ukunikezelwa ukusuka kumthombo wamandla we-SELV. Umbane ovela kunikezelo lwe-SELV uphantsi ngokwaneleyo ukuba phantsi kweemeko eziqhelekileyo umntu unokunxibelelana ngokukhuselekileyo ngaphandle komngcipheko wokutshatyalaliswa kombane. Iimpawu ezongezelelweyo zokhuseleko ezakhelwe kwiKlasi 1 kunye neClass 2 izixhobo zombane ke ngoko azifuneki.