Thanx for the replies...1st,I don't think the "grandfathered" rule would apply once I change the 2 prong style plugs to the currently used 3 prong style plugs since an upgrade is taking place with the installation of new grounded style recepticles.
But, I wasn't sure if the reduced size grounding wire in the old romex was acceptable for grounding when the code (250.122)specifies a #14 copper equipment ground to be used on 15 amp circuits.
Also at the main panel I'll have to unwrap the ground from under the metal romex clamp and connect it directly to the ground bar,as well as unwrapping the ground wire at each outlet box from under the box clamp and splicing them together and pigtail to the box and also to the device itself.Right?
Or can I just ground the device to the box and leave the grounds as they were originally installed in the 1960's?
