Just one tactic for resolving this example is taken in Poland, wherever CEE seven/5 sockets are usually put in in pairs, the higher (upside-down) one particular possessing the "French" polarity along with the decrease one particular possessing the "Czech" polarity, so that the user can choose what to plug where https://plug-types23332.thekatyblog.com/28641786/an-unbiased-view-of-types-of-electrical-plugs-uk