Holly Electronic Co., Ltd.
Brazil, which had been using mostly Europlugs, and NEMA 1–15 and NEMA 5–15 standards, adopted a (non-compliant) variant of IEC 60906-1 as the national standard in 1998 under specification NBR 14136 (revised in 2002).one for 10 A, with a 4.0 mm pin diameter, and another for 20 A, with a 4.8 mm pin diameter.
Few private houses in Brazil have an earthed supply, so even if a three-pin socket is present it is not safe to assume that all three terminals are actually connected. Most large domestic appliances were sold with the option to fit a flying earth tail to be locally earthed, but many consumers were unsure how to use this and so didn't connect it. The new standard has an earth pin, which in theory eliminates the need for the flying earth tail.
The Swiss standard is SN SEV 1011:2009 Plugs and socket-outlets for household and similar purposes.The standard defines a hierarchical system of plugs and sockets with two, three and five pins, and various ratings. Sockets will accept plugs with the same or fewer number of pins and the same or lower ratings.