French (also known as type E, CEE 7/5 (socket), CEE 7/6 (plug)
Originally developed in France, the plug is rated at 230v 16A, and has two 4.8mm x 19mm pins. The earth connection is made by an earth pin which protrudes from the socket, and engages with a hole in the plug (there are no side earth strips). Until 2002, there was no convention as to whether sockets had the live wired to the left or right hole. However, it is now more likely that the live will be wired to the right hole (as you face the socket). This cannot be relied upon, as many sockets are still wired the other way, and to further confuse matters, the Czech standard still recommends wiring the live to the left hole! Due to the earth pin projecting from the socket, the plug is polarised, so can only be inserted one way around.
Universal CEE 7/7 Plug
In order to bridge the differences between German and French standards, the CEE 7/7 plug was developed. It has a hole to accept the earth pin on a French socket, and side strips to connect to the earth clips on the side of German sockets. It is often incorrectly referred to as as Schuko plug.
( source https://www.toughleads.co.uk/pages/european-sockets )
Originally developed in France, the plug is rated at 230v 16A, and has two 4.8mm x 19mm pins. The earth connection is made by an earth pin which protrudes from the socket, and engages with a hole in the plug (there are no side earth strips). Until 2002, there was no convention as to whether sockets had the live wired to the left or right hole. However, it is now more likely that the live will be wired to the right hole (as you face the socket). This cannot be relied upon, as many sockets are still wired the other way, and to further confuse matters, the Czech standard still recommends wiring the live to the left hole! Due to the earth pin projecting from the socket, the plug is polarised, so can only be inserted one way around.
Universal CEE 7/7 Plug
In order to bridge the differences between German and French standards, the CEE 7/7 plug was developed. It has a hole to accept the earth pin on a French socket, and side strips to connect to the earth clips on the side of German sockets. It is often incorrectly referred to as as Schuko plug.
( source https://www.toughleads.co.uk/pages/european-sockets )