Plugs and polarity in Europe
The de facto standard single phase European plug used in most countries is known as 'Schuko' or CEE 7/X. CEE 7/7 is the grounded version and CEE 7/16 is the non-grounded version for small appliances.
The CEE 7/X family of plugs is *not* polarised i.e. you can insert the plugs either way.
As a result *all* appliances on sale in Europe must be designed to be perfectly safe regardless of whether the phase and neutral are reversed.
The plugs used in the UK and Ireland are polarised and can only be inserted in one way.
Also, when CEE 7/7 plugs are used in French sockets, they are polarised as there's a grounding pin which prevents the plug from being inserted the 'wrong' way.
European wiring:
N = 0V (Blue)
L1 = 230V (Brown)
L2 = 230V (Black)
L3 = 230V (Grey)
Ground =0V (Yellow & Green stripes)
Phase to Phase = 400V
The standard CEE 7 socket outlet rated 16Amps (Grounding connectors are the clips at the top and bottom of the socket recess. The recessed socket is designed to make it impossible to touch the pins when you're inserting the plug.

The de facto standard single phase European plug used in most countries is known as 'Schuko' or CEE 7/X. CEE 7/7 is the grounded version and CEE 7/16 is the non-grounded version for small appliances.
The CEE 7/X family of plugs is *not* polarised i.e. you can insert the plugs either way.
As a result *all* appliances on sale in Europe must be designed to be perfectly safe regardless of whether the phase and neutral are reversed.
The plugs used in the UK and Ireland are polarised and can only be inserted in one way.
Also, when CEE 7/7 plugs are used in French sockets, they are polarised as there's a grounding pin which prevents the plug from being inserted the 'wrong' way.
European wiring:
N = 0V (Blue)
L1 = 230V (Brown)
L2 = 230V (Black)
L3 = 230V (Grey)
Ground =0V (Yellow & Green stripes)
Phase to Phase = 400V
The standard CEE 7 socket outlet rated 16Amps (Grounding connectors are the clips at the top and bottom of the socket recess. The recessed socket is designed to make it impossible to touch the pins when you're inserting the plug.
