Electrical Plugs and Sockets

BS 1363 British 3-pin plug 13A/230-240V earthed (Type G)

BS 1363 (British 13A/230-240V 50 Hz earthed and fused)

CEE 7/16 - European ungrounded 2-pin plug (Type C)

defined under these standards:
Type C
CEE 7/16
EN 50075

Should these be linked fields?

with 4mm prongs

CEE 7/17 defines 4.8mm prongs, like the Type E and Type F, and has a round ended plug. I don't have a pic.

NEMA 1 - North American ungrounded 2-prong plug (Type A)

NEMA 5-15 - North American grounded 3-prong plug (Type B)

NEMA 5-15 (North American 15A/125V grounded)

JIS C 8303, Class I (Japanese 15A/100V grounded)

http://www.nema.org/stds/wd6.cfm

Type C - European ungrounded socket

2 round 4mm prongs (not earthed) spaced 19mm apart.

from wikipedia:

This two-prong plug is popularly known as the Europlug. The plug is non-earthed and has two round 4 mm (0.16 in) pins, which usually converge slightly towards their free ends. It can be inserted into any socket that accepts 4 mm round contacts spaced 19 mm (0.75 in) apart. It is described in CEE 7/16[12] and is also defined in Italian standard CEI 23-5 and Russian standard GOST 7396."

Type E - French

Very similar to the more common Schuko, but instead of earthing clips on the sides, has a single male earth pin in the socket. The socket also accepts Europlugs and CEE 7/17 plugs.

from wikipedia:
The type F plug, defined in CEE 7/4 and commonly called a "Schuko plug", is like type E except that it has two earthing clips on the sides of the plug instead of a female earth contact. The Schuko connection system is symmetrical and unpolarised, allowing live and neutral to be reversed. The socket also accepts Europlugs and CEE 7/17 plugs. It supplies up to 16 Amperes. It is used in Germany, Iceland, Latvia, Finland, Chile, the Netherlands, Norway, Portugal, Spain and Sweden.

Type I - Australian

http://en.wikipedia.org/wiki/AS_3112

Type J - Swiss socket