Museum of Plugs and Sockets logo, small General  Information
about plugs and sockets
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Spread over the museum website, information can be found about historical, technical and safety aspects of plugs and sockets. Links to these pages are given below.

Another group of pages gives information of manufacturers of plugs and sockets.


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Diversity globe
5 types of sockets
concentric map Europe

worldwide diversity
of plugs and sockets
overview of standards
of domestic sockets
concentric plugs
and sockets
plug compatibility with sockets in Europe

History
Hubbell logo GEC and MK Electric logos Schuko mark George P. Knapp signature

origin of US straight
blade plugs
 
history of British
plugs and sockets
German earth clip plugs,
  origin of design
origin of Australian plugs
with angled blades

Socket with earth pin
symbol of earthed socket, small DIN VDE 4990 and IEC 60320 appliance plugs


domestic sockets
with an earth pin
sockets with similar
configuration of contacts
precursors of IEC 60320
appliance connectors


Marks and Logos VDE, Kite and KEMA marks MPAD, CMAW and GF Bakelite marks
Felmas, Lauritz Knudse and Vynckier logos

certification marks on
plugs and sockets
German and French
Bakelite marks
plug manufacturers, both
classic and still existing


Safety aspects safety shutters
locks


types of socket
safety shutters
mechanisms to
lock plugs in sockets



Wiring Three-phase AC
Delta and Wye 3-phase transformers
Spolit-phase wiring
Radial and ring wiring

3-phase AC generator
basic principle
3-phase transformers,
source of low voltages
split-phase wiring radial and ring circuits; domestic wiring techniques


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Manufacturers of plugs and sockets, 
represented in the museum collection 
including logos and information about the history of classic and still existing companies.

Flag of Germany
Germany
Flag of UK United Kingdom
Flag of USA
United States
Manufacturers in countries
that use the CEE 7/3-4
(Schuko) standard.
Flag of Austria
Austria
Flag of the Netherlands
Netherlands
Flag of Norway
Norway
Flag of Portugal
Portugal
Flag of Sweden
Sweden

Manufacturers in countries
that use the CEE 7/5-6 standard.
flag of Belgium
Belgium
Flag of Czech Republic
Czech Repub.
Flag of France
France
Flag of Morocco
Morocco
Flag of Poland
Poland

Manufacturers in European countries that use various types of earth connections.
flag of Denmark
Denmark

flag of Italy
Italy
flag of Liechtentrein
Liechtenstein
flag of Spain
Spain
flag of Switzerland
Switzerland

Six manufacturers in the
southern hemisphere

Flag-AR
Argentina
Flag-BR
Brazil
Flag-CL
Chile
Flag-AU
Australia
Flag-NZ
New Zealand

Flag-ZA
South Africa




Another type of wiring ...

Wiring in Cluj-Napoca

not in the collection, but seen in Cluj-Napoca, Romania (2009)

 


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