Editing AC power plugs and sockets (section)

==== CEE 7/5 socket and CEE 7/6 plug (French; Type E) ====
{{anchor|CEE 7/5 socket|CEE 7/6 plug|Type E}}
[[File:French-power-socket.jpg|French socket (CEE&nbsp;7/5)|thumb|upright=.9]]
[[File:French Plug CEE 7 6.jpg|Rewireable French plug (CEE&nbsp;7/6, now rare)|thumb|upright=.9]]

[[France|French]] standard NF C 61-314 defines the CEE&nbsp;7/5 socket and CEE&nbsp;7/6 plug, (and also includes CEE&nbsp;7/7, 7/16 and 7/17 plugs). The socket has a circular recess with two round holes. The round earth pin projecting from the socket connects before the energized contacts touch. The earth pin is centred between the apertures, offset by {{convert|10|mm|in|3|abbr=on}}. The plug has two round pins measuring {{convert|4.8|by|19|mm|in|3|abbr=on}}, spaced {{convert|19|mm|in|3|abbr=on}} apart and with an aperture for the socket's projecting earth pin. This standard is also used in [[Belgium]], [[Poland]], the [[Czech Republic]], [[Slovakia]] and some other countries.

Although the plug is polarised, CEE&nbsp;7 does not define the placement of the live and neutral, and different countries have conflicting standards for that. For example, the French standard NF C 15-100 requires live to be on the right side, while Czech standard ČSN 33 2180 requires it to be on the left side of a socket. Thus, a French plug when plugged into a Czech socket (or a Czech plug when plugged into a French socket) will always have its polarity reversed, with no way for the user to remedy this situation apart from rewiring the plug. One approach for resolving this situation is taken in Poland, where CEE&nbsp;7/5 sockets are typically installed in pairs, the upper (upside-down) one having the "French" polarity and the lower one having the "Czech" polarity, so that the user can choose what to plug where.

CEE&nbsp;7/4 (Schuko) plugs are not compatible with the CEE&nbsp;7/5 socket because of the round earthing pin permanently mounted in the socket; CEE&nbsp;7/6 plugs are not compatible with Schuko sockets due to the presence of indentations on the side of the recess, as well as the earth clips. CEE&nbsp;7/7 plugs have been designed to solve this incompatibility by being able to fit in either type of socket.<ref>{{cite web |title=Museum of Plugs and Sockets: CEE 7 standard/title> |url=https://plugsocketmuseum.nl/CEE-standard.html |access-date=21 May 2024 |website=plugsocketmuseum.nl}}</ref>

Sales and installations of 7/5 sockets are legally permitted in [[Denmark]] since 2008, but the sockets are hard to find in physical stores,<ref>{{cite web |url=https://www.greenline.dk/lk-stikkontakt-1-modul-med-pindjord-hvid-15420 |title=LK stikkontakt 1 modul med pindjord, hvid |access-date=13 November 2023 |language=da |publisher=Greenline.dk}}</ref> and installation is exceedingly rarely performed.

{{anchor|CEE 7/7 plug}}