For questions relating to compliance with laws and ordinances of federal, state/province and local jurisdictions. Questions should also be tagged with the specific area of construction involved.
7
votes
4answers
7k views
Is using 15 amp components on a 20 amp breaker against code?
I have noticed in a few different houses in Oklahoma that 20 amp breakers are used, but all of the outlets and switches only seem to be rated for 15 amps. This goes against everything I know to be ...
10
votes
3answers
3k views
Is running ethernet cable through an air return allowed under US code?
I'm looking to wire up the second floor of my house and the cold air return provides a convenient, straight run from the office to the utility room. Is it safe and within code to run ethernet cable in ...
9
votes
3answers
1k views
What is electrical code for number of wires in a breaker?
US, Georgia
I am adding some new ciruits to add some additional outlets. The closest place is to run a wire to the main panel box.
My question is, can I connect more than one wire to a breaker and ...
5
votes
4answers
629 views
Can different gauge wiring be used in the same circuit?
I am extending a lighting and outlet circuit in a basement. The current setup has the following characteristics
15 amp. circuit breaker (200 amp service)
4 existing lighting fixtures using CFL bulbs ...
4
votes
1answer
395 views
Do I need to attach a wire fished through a ceiling?
I have a finished basement and am mounting a flat-screen TV on the wall and I want to put an electrical box behind the TV. The two existing outlets are both two joists over and each separated with a ...
2
votes
5answers
745 views
Why are there multiple receptacles by amperage?
I could imagine the various receptacle shapes being a tool to protect you from making a mistake about what you plug in.
Consider a 15A breaker with 14ga wiring to NEMA 5-15R receptacles. The circuit ...
1
vote
1answer
285 views
What are the codes for electrical wiring in attics?
What is the typical code for wiring in attics? I understand these vary but what's best practice?
Can you just have electrical wires exposed with all the junctions, in junction boxes, provided all the ...
