12' Rule

[Mike Lamb]

About when did the NEC call for wall outlets to meet the "12' 6' Rule?" 210.52a

[Jim Baird]

I think it was a Bronze Age rule.

[John Kogel]

Come here for a serious reply and get a joke instead. [:-party]

Mike, if you still need to know, don't ask me, I'm Canadian. 1970's we start to see multiple receptacles along the walls, late 60's even.

[Jim Katen]

The details have changed over the years, but the 1956 edition was the first to require one receptacle for every 12' of wall length.

As far back as the '47 edition, it required one receptacle for every 20' of wall length.

I don't have anything older than that, so I don't know if it goes even further back.