This Standard deals with:- the safety of microwave ovens with a cavity door intended for commercial use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances.- the safety of microwave ovens with a cavity door, the requirements for which are contained in Annex AA.- the safety of microwave ovens with a cavity door and with transportation means that are intended for commercial use only, for the heating of food and beverages, the requirements for which are contained in Annex BB.Microwave ovens, covered by annex BB, have transportation means for moving themicrowave load t