It's a little out of date, South Africa has mandated IEC 60906-1 (SANS 164-2) on all new installations for some time now, replacing the huge old BS 546 (SANS 164-1) socket.

Incidentally, IEC 60906-1 was designed to be a new global plug standard but almost no countries want to go through the trouble of changing their own standards to adopt it. The Brazilian implementation is also not 100% compatible any more.