Brazil, which had been using mostly Class II Euro plugs, and NEMA 1–15 and NEMA 5–15 standards, adopted a modified (non-compliant) version of IEC 60906-1 as the national standard in 1998 (revised in 2002) under specification NBR 14136.[32] There are two types of sockets and plugs in NBR 14136: one for 10 A, with a 4 mm pin diameter, and another for 20 A, with a 4.8 mm pin diameter, the latter used for heavier appliances such as microwave ovens.[33] NBR 14136 was not enforced or encouraged in that country until 2007, when its adoption was made optional for manufacturers, becoming compulsory on January 1, 2010. It helped domestic consumers that most of Class II plugs fitted in the new NBR 14136 sockets.http://www.yunhuanelectric.com/Brazil-power-cords-standard.html
