EXTRACT from standard: EN/IEC 62196-1:2014
10 Protection against electric shock
10.1 Accessories shall be so designed that live parts of socket-outlets and vehicle connectors, when they are wired as in normal use, and live parts of plugs and vehicle inlets, when they are in partial or complete engagement with the complementary accessories, are not accessible.
NOTE 1 In the following countries, IPXXD shutters are compulsory on live (phase and neutral) contact holes of socket-outlets when these socket-outlets are accessible to uninstructed persons (ordinary persons BA1, handicapped persons BA2 or children BA3): FRANCE, BR, PT, DK, IT.
NOTE 2 In the following countries, IPXXD shutters are compulsory on live (phase and neutral) contact holes of connectors when these connectors are permanently wired to the fixed installation and are accessible to uninstructed persons (ordinary persons BA1, handicapped persons BA2 or children BA3): FRANCE, PT.
NOTE 5 In the following countries, for installations in dwellings, wiring rules require the use of socket-outlets with shutters: UK, FRANCE, SG, IT.
Extract from standard: EN/IEC 61851-1 ed.3
This standard requires that vehicle connectors and EV socket-outlets intended for Mode 3 use, shall fulfil one of the following requirements:
a) Minimum opening of the contacts considering overvoltage category 3, e.g. the value given for 230 V/400 V is 4 kV rated impulse voltage withstand that implies at least 3 mm separation of contacts.
b) Presence of monitoring of the switching contacts associated with a means to operate another mechanical switching device providing isolating function upstream the above in case of fault of operation of the switching device upstream the accessory.
c) Presence of shutters on live entry hole of the socket-outlets or vehicle connectors.
NOTE 4 In FRANCE and UK socket-outlets are equipped with shutters where they are mandatory in residential and public locations.
Extract from standard: EN 62196-2:2012 + Amendments
Annex ZB (normative) - Special national conditions
Add a 2nd paragraph: When plugs & socket-outlets are used and socket-outlets are accessible to uninstructed persons, they shall be provided with shutters (as presently defined in Type 3).