Out of cutiosity, I looked up the specs, and according to a friend (I couldn't get the actual specs, so he measured) the pin diameter of a BS546 15A plug matches a 32A CEE industrial plug.

The 2 pin Euro plug with its plastic sleeved 4mm pins is rated at 2.5A. Yet the Italian 2 pin plug with plastic sleeved 4mm pins is rated 10A... and so far I didn't hear anything about common failure (unlike the Swiss 10A plugs with unsleeved 4mm pins prone to melting down cheaper outlets at even a continuous 10A load).