How to ground my home electrical in accordance with code?
December 6, 2011 4:57 PM Subscribe
Help me understand the national electric code with regard to rewiring and updating several rooms in my 1940s-era house.
posted by JohnFredra to home & garden (8 answers total) 3 users marked this as a favorite
I am planning for some electrical work that I will be performing in my 1940s-era house. I have several rooms that have no grounded outlets or wiring and I plan to rewire them and add these. I grok the 'electricity' part, but I need to know more about the electrical code.
1. Does the national electric code (NEC) require me to add enough new outlets such that they can be spaced according to current standards?
2. Does the NEC permit me to tie an existing, ungrounded lighting circuit into a grounded branch circuit? (I'd do so because I won't be able to staple a new run of grounded wire to the studs in the enclosed wall cavity.)
3. In general, does the NEC require that anything I modify be done such that it would be consistent with the current standards? That is, if I modify one connection in an existing junction box, am I bound to update everything in that box?
These sorts of things might be totally under the purview of my local building codes; that's a totally reasonable response. I plan on asking my local inspector these (and many other) questions when I apply for a permit. I just want to know as much as possible about national statutes before having that conversation. Many thanks!