Kitchen rehab wiring question

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journeyman0217

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philadelphia,pa
I am rewiring a kitchen that has been demoed . I am rewiring the whole kitchen. My question is about the electric range wiring . It is wired with an existing two conductor cable. Being that the kitchen is being renovated do I have to re-run the electric range wire with a three conductor cable By code? If so where might I find this in the codebook ?
 
Do you have to? probably not. Ask the AHJ if they require it.

But it is a very good idea for you to install 4 conductor cable.

The NEC does not say whether or not you have to upgrade to a 4 conductor cable.
 
journeyman0217 said:
I am rewiring a kitchen that has been demoed . I am rewiring the whole kitchen. My question is about the electric range wiring . It is wired with an existing two conductor cable. Being that the kitchen is being renovated do I have to re-run the electric range wire with a three conductor cable By code? If so where might I find this in the codebook ?
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Look at 250.140 and read the exception carefully and see how it fits your current project. If you have any more questions please come back here and ask them.
 
journeyman0217 said:
I am rewiring a kitchen that has been demoed . I am rewiring the whole kitchen. My question is about the electric range wiring . It is wired with an existing two conductor cable. Being that the kitchen is being renovated do I have to re-run the electric range wire with a three conductor cable By code? If so where might I find this in the codebook ?
Click to expand...

PA is to my understanding still on the 2008 NEC. I can tell you here, under 2012 IRC, this is how it works (in addition to 250.140): if you leave that circuit/receptacle alone, it can stay. Move it, even closer to the panel (no splices or extensions) and it's been modified and would have to be replaced with a 4 wire. The key word in the exception is "existing". If you move the wiring or receptacle to a new location, it is no longer "existing". Personally I think that is splitting hairs if the receptacle could be moved closer to the panel, tho Murphy's Law will dictate that if the range receptacle must be moved, it will always be further away and you'll end up pulling a new 4 wire cable anyway.
 
edward said:
Now days all of them require a 4 wire appliance unless the existing receptacle is 3 prong.
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There are also conditions on the type of neutral and in some cases the origin panel of the circuit which can cause problems for service rewiring and force you to run new 4-conductor.

mobile
 
This is just my opinion with no Code reference. If it's a simple run without having to break open any walls or ceilings I would make the change. If you have to do some damage to existing structures that wasn't planned on then I would leave it as is. Also, when the new range arrives and you un-crate it you'll notice that there is a copper strap bonding the neutral and ground. If you use the existing wiring you'll have to leave that strap in tact. If you install new wiring you'll have to remove that strap.
 
edward said:
Now days all of them require a 4 wire appliance unless the existing receptacle is 3 prong.
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I guess I maybe splitting hairs, last week we remodeled a kitchen were just going to replace the range. Jenn-Air did require a four wire no expectations were offered.
I even opened up the terminal box behind the range, there was no jumper for the neutral and the EGC to the chassis.
 
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