Residential electrical loads, linear or non-linear, used on household devices must receive attention regarding efficiency, immunity, conducted and irradiated interference in order to preserve power quality. Individually, the cost of the energy loss or the effect of undesirable interference and reduction of MTBF will be hardly calculated. Therefore, the treatment of residential loads is not, in short time, a real advantage for the consumer, however collectively is significant to the energy supplier. Other issues are the quick depreciation and reduction of life expectancy for electrical and electronic products, such as motors, air conditioners, computers, LED lights, etc. This paper organizes the technical information for the improvement of conformity assessment and the optimization of the energy use, targeting its better distribution, comparing the current regulations established by the Brazilian National Institute of Metrology, Quality and Technology — INMETRO with the specification of the National Agency of Electrical Power-ANEEL in the ‘Procedures for Electrical Power Distribution on the National Electrical System’ — PRODIST Module 8.