Power supply equipment
The electric current in Bulgaria is with parameters 220V, 50 Hz.
The standard electricity supply equipment is of the Schuko type (Schutzkontakt) – two cylindrical contacts of diameter 4,8 mm and length 19 mm with a distance of 19 mm between them. The two contacts are symmetric, i.e. it does not mater in which of the two possible ways the plug will be inserted into the power outlet. This a popular standard in many European countries.