Posted by John B [68.69.26.160] on Wednesday, January 15, 2014 at 19:08:10 :
In Reply to: Re: Uh-huh. posted by John Dunn [69.15.168.10] on Wednesday, January 15, 2014 at 15:44:12 :
I remember when the #3 copper first appeared in this area (along the north shore of Lake Ontario.) I will guess the late 60s or early 70s. Before that we used #2 for 100 amp services.
I took a look in some of my old Code Books.
Yes it is listed in the 1966 book. Yes in the 1951 book. Yes in the 1919 book. And yes again in the 1914 book. Before that, well I didn't really have much need for an Electrical Code Book. JJB.