What type of plugs are used in Barcelona?
As in the rest of Spain, the type of plug used in Barcelona is the 2 pin socket.
Electric supply system
In Spain, the electricity supply is 220 volts. In Ireland and UK they use 240 volts, but most of the electric devices that work with 220 will work with 24o volts too.
Traveling around Europe? No problem!
This type of plug is also used in the rest of Europe. An exception is made with the UK (dear English people, why do you always do differently?).