ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades When were socket outlets introduced?

I've seen pictures of sockets for round 4mm pins from the 1890ies, so I guess they've been around here for a looong time. Schuko didn't real´ly catch until the 1950ies, and where older stuff was upgraded the only Schuko sockets were installed in damp locations, most of all kitchens. TT with water pipe as a ground rod, individual ground wire to every socket, nothing like RCD.



1985-1920ies surface mount socket


The first Schuko socket on the site appears much later, 1940ies-50ies



Jordade vägguttag användes vid den här tiden nästan bara i köket i närheten av vasken, där man kunde ansluta kokplattor och andra köksapparater som var skyddsjordade.

CH, could you please translate? All I understand is that the grounded socket was intended for hooking up cookers.

BTW, CH posted the link long ago, http://home.swipnet.se/elsamling/ is an incredible site with loads of funky pictures.