> In the standard socket, you can have 10 amp, 15 amp or 20 amp, and they all have different sized pins. Yeah, Brazilian NBR 14136 does that too. It has 10A an

> In the standard socket, you can have 10 amp, 15 amp or 20 amp, and they all have different sized pins. Yeah, Brazilian NBR 14136 does that too. It has 10A and 20A variants, and the only difference is that 20A has slightly larger pins, so it won't fit into a 10A socket. (And the international standard it was based on, IEC 60906-1, has only a 16A variant with an intermediate pin size, so the 10A plug would fit into its socket and its plug would fit into the 20A socket.) Annoyingly, that's the only difference, making it quite hard to tell just by looking whether it's a 10A or 20A plug/socket; you have to try and see if it fits.