House Re-Wire

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bakerbrotherselectric

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We are finishing up on a house re-wire on a house built in 1930. Converting the house over from knob and tube to romex. The house has already had a upgraded service installed 2 years prior.At the time of the new service install, a 50 amp subpanel was installed in the detached garage. They ran a 1 1/4" pvc conduit under the house to a 6x6 nema 3R junction box on the other side of the house.From there it went under ground to the garage. In the same 1 1/4" conduit they ran the 6 circuits that feed the house(9-12 awg.) to the 6x6 junction box. From the 6x6 they piped up the side of the house to a 2 gand wp box, and spliced onto the old knob and tube wires. I have some questions?
eg.
He has (2) 20amp circuits that feed his kitchen. 1st 20amp feeds (2) countertop recept. 1 dinning room recept. and the disposal. 2nd 20amp feeds gas stove, space saver micro, refer, and bathroom light. DW is fed from the 20amp living room circuit.

-In this case, when re-wiring the house is it required to add additional circuits called out in the code for specific rooms? Do I need to run a dedicated circuit to the disposal, a dedicated circuit to the DW, and install arc fault breakers for the bedrooms?
 
The NEC really does not cover your question.

Any new work has to comply with the NEC but what to do about existing work depends on how the local area handles it.

In my state I can add any new work I want and turn a blind eye toward any existing work.

Of course up selling to the customer is always a good idea. :)
 
Around here its always been "you touch it you own it" type of thing so if your rewiring the whole house to eliminate the knob and tube then you also need to bring it to current code in my opinion.

Good luck
 
Are you abandoning all the K&T and installing all new wiring? If so, than you will have to wire the entire house per the code cycle adopted in your area and any local supplements. Best bet is to talk to the AHJ.
 
Minuteman said:
Are you abandoning all the K&T and installing all new wiring? If so, than you will have to wire the entire house per the code cycle adopted in your area and any local supplements.
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That would not be the case everywhere.

It is not the case here.

Best bet is to talk to the AHJ.
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Few electricians meet or talk to the AHJ, most times we deal with inspectors.

Inspectors are rarely the actual AHJ, but I do agree this question must be answered by someone in the OPs area.
 
iwire said:
That would not be the case everywhere. It is not the case here.
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How convenient for you. :cool:

Few electricians meet or talk to the AHJ, most times we deal with inspectors. Inspectors are rarely the actual AHJ, but I do agree this question must be answered by someone in the OPs area.
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I guess that would depend on what is is?
 
Thanks

Thanks

We appreciate the quick response. It looks like the AHJ will inform us on what he wants to see in place. Its going to be an interesting debate that day with the AHJ. Our understanding is one in which the house is not undergoing any physical changes in the way of room additions, kitchen remodel, or room exspansions, so the existing circuits in place would suffice. Then again the inspector might correct our understanding:smile: Ill post the results as soon as we get them..
 
bldg codes in my area

bldg codes in my area

If the renovation is more than 40% the entire house must be brought up to current code. It is up to some interpretation of course but most bad work done in houses that homeowner Harry wired is preexisting non conforming and I dont touch it unless I am getting paid. many homeowners dont want to go with an open ended guess to straighten out old nightmares but customers are much more friendly when you give them a Not to exceed price say 500 or 1000$ not to exceed buys them a day or two of fixing homeowner nightmares wherever you can see them. Most are surprised at how little time it takes to make thier house safe from fires and electrocution. Small price to pay for safety.
 
communication is the key to having customers that understand that some jobs are vague and therefore need some leeway insofar as estimates are considered.
 
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