Electrical PVC verse Regular PVC

[sparkkky]

Guys, my whole point I have been trying to make is for the do it yourselfers is that they should at least try to learn and do the minimum's required by code. Heck most are a real long ways from understanding how to better them!

 

[Farwell]

A suggestion for anyone wanting to get informed on the N.E.C., subscribing to the Mike Holt newsletter may help a great deal
David B

 

[BXRICK]

Overall, most building codes make sense.
But, you can't just learn the codes, you have to know WHY the code exists. And, when I run across someone who knows the code well, but can't explain the purpose of the code, I have some doubts about that person.

The answer to "Why should I do it that way?" is never "because it's code." Rather, it's code because it's the minimally safe way you should do it.

As an over-builder myself, I see no reason not to use bigger wire gauges, a few more studs, etc. It's only money.

 

[keeney]

Actually, I have found some cases where something that seems like over-building turns out not to be code.

Wiring my Kitchen island, I ran 10-gauge wire on a 30-amp circuit breaker so as to be sure and have enough current to run the trash compactor, garbage disposal, and dish washer (if all on simultaneously, the plate ratings added up to 21.5 amps). Inspector made me add another cable and split the appliances onto seperate circuits; both with 20 amp breakers. It turns out that many appliances have a maximum circuit size they are rated to be connected to. They are only failure-tested (UL certified) with that amount of current. A garbage disposal that has a failure and shorts out safely below 20 amps might burn down your house if it happens to short out and draw 30 amps on a 30 amp circuit.

- Rick

 

[gemini5362]

Actually, I have found some cases where something that seems like over-building turns out not to be code.

Wiring my Kitchen island, I ran 10-gauge wire on a 30-amp circuit breaker so as to be sure and have enough current to run the trash compactor, garbage disposal, and dish washer (if all on simultaneously, the plate ratings added up to 21.5 amps). Inspector made me add another cable and split the appliances onto seperate circuits; both with 20 amp breakers. It turns out that many appliances have a maximum circuit size they are rated to be connected to. They are only failure-tested (UL certified) with that amount of current. A garbage disposal that has a failure and shorts out safely below 20 amps might burn down your house if it happens to short out and draw 30 amps on a 30 amp circuit.

- Rick

to my opinion putting a 115 volt small appliance on a 30 amp breaker might or might not be code but it is not a good idea. However my point was that you could run a 10 gauge wire between that 20 amp breaker and the appliances and not be out of code or hurt anything. Other than maybe your pocket book

 

[midlf]

to my opinion putting a 115 volt small appliance on a 30 amp breaker might or might not be code but it is not a good idea. However my point was that you could run a 10 gauge wire between that 20 amp breaker and the appliances and not be out of code or hurt anything. Other than maybe your pocket book

It's not code. 20 amp for general utilization circuits.

 

[turbo36]

Actually, I have found some cases where something that seems like over-building turns out not to be code.

Wiring my Kitchen island, I ran 10-gauge wire on a 30-amp circuit breaker so as to be sure and have enough current to run the trash compactor, garbage disposal, and dish washer (if all on simultaneously, the plate ratings added up to 21.5 amps). Inspector made me add another cable and split the appliances onto seperate circuits; both with 20 amp breakers. It turns out that many appliances have a maximum circuit size they are rated to be connected to. They are only failure-tested (UL certified) with that amount of current. A garbage disposal that has a failure and shorts out safely below 20 amps might burn down your house if it happens to short out and draw 30 amps on a 30 amp circuit.

- Rick

This is not an example of "over building" it is simply an example of code violation. If you had put in 10 gage wire with 20 amp breakers then that would be "over building". The NEC is very specific about kitchen appliance circuit wiring.