IEC bụ moto ọkọlọtọ na Europe

E guzobere International Electrotechnical Commission (IEC) na 1906 ma nwee akụkọ ihe mere eme nke afọ 109 ruo 2015. Ọ bụ ụlọ ọrụ nhazi electrotechnical mbụ n'ụwa, na-ahụ maka nhazi mba ụwa n'ọhịa nke injinia eletriki na injinia eletriki. Isi ụlọ ọrụ nke International Electrotechnical Commission dị na London, mana ọ kwagara n'isi ụlọ ọrụ ya ugbu a na Geneva na 1948. Na ogbako electrotechnical mba ụwa isii emere site na 1887 ruo 1900, ndị ọkachamara sonyere kwetara na ọ dị mkpa ịtọlite ​​​​òtù nhazi electrotechnical mba ụwa na-adịgide adịgide iji dozie nsogbu nke nchekwa eletriki na nhazi ngwaahịa eletriki. Na 1904, International Electrotechnical Conference nke emere na St. Louis, USA, mere mkpebi maka ịtọlite ​​​​ụlọ ọrụ na-adịgide adịgide. Na June 1906, ndị nnọchiteanya nke mba 13 zukọrọ na London, depụta iwu na iwu usoro IEC, ma guzobe International Electrotechnical Commission n'ụzọ iwu. Na 1947, e tinyere ya na International Organization for Standardization (ISO) dị ka ngalaba electrotechnical, na 1976, e si na ISO wepụta ya. Ebumnuche ya bụ ịkwalite mmekorita mba ụwa na okwu niile metụtara nhazi electrotechnical n'ọhịa nke teknụzụ electrotechnical, electronic na ndị metụtara ya, dịka nyocha nhazi nke ụkpụrụ. Ebumnuche nke kọmitii ahụ bụ: imezu mkpa ahịa ụwa nke ọma; iji hụ na ọ kacha mkpa na ojiji kachasị nke ụkpụrụ ya na atụmatụ nyocha nhazi n'ụwa niile; inyocha ma melite ogo ngwaahịa na ọrụ nke ụkpụrụ ya kpuchiri; iji nye maka ojiji nkịtị nke sistemụ mgbagwoju anya Mepụta ọnọdụ; mụbaa irè nke usoro mmepụta ihe; melite ahụike na nchekwa mmadụ; chebe gburugburu ebe obibi.

Moto NEMA bụ ọkọlọtọ nke ndị Amerịka.

E guzobere NEMA na 1926. E guzobere otu ụlọ ọrụ mmepụta eletrọniki mbụ na United States na 1905, aha ya bụ Electronic Manufacturers Alliance (Electrical Manufacturers Alliance: EMA), ma gbanwee aha ya ka ọ bụrụ Electrical Manufacturers Club (EMC Club), 1908 Ndị na-emepụta moto America E guzobere American Association of Electric Motor Manufacturers: AAEMM, na 1919 a gbanwere aha ya ka ọ bụrụ Electric Power Club (EPC Power Club). Òtù atọ ahụ jikọtara ọnụ iji guzobe Electrical Manufacturers Council (EMC).