petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- engineer
I am not sure I see the point of banning it inside poured concrete. How is that any worse then embedding it in clay.
UF Cable Behind Stone
- Thread starter Little Bill
- Start date
- Status
SceneryDriver
Senior Member
- Location
- NJ
- Occupation
- Electrical and Automation Designer
I'll preface this by saying we know nothing of the installation particulars:
Any way to feed this receptacle with something like 1/2" PVC conduit? At least that way, you or the next person has a chance to pull in new conductors if they get damaged. I wouldn't trust the stone installers to not damage the UF during install. If the UF develops a ground fault and trips the breaker / GFCI, how could you fix it? I'd imagine the customer wouldn't be too happy if you told them you needed to pull down the stone.
Romex behind drywall is one thing; drywall can be easily patched and painted. UF behind masonry is basically unrepairable.
-SceneryDriver
Any way to feed this receptacle with something like 1/2" PVC conduit? At least that way, you or the next person has a chance to pull in new conductors if they get damaged. I wouldn't trust the stone installers to not damage the UF during install. If the UF develops a ground fault and trips the breaker / GFCI, how could you fix it? I'd imagine the customer wouldn't be too happy if you told them you needed to pull down the stone.
Romex behind drywall is one thing; drywall can be easily patched and painted. UF behind masonry is basically unrepairable.
-SceneryDriver
oldsparky52
Senior Member
- Location
- Wilmington, NC USA
That is allowed, but the UF in the mortar is not (IMO).
Why the difference?
I would think, as the rest of the CODE, you would want to protect the conductor’s themselves. UF cable is more susceptible to damage than MC cable. I also think the insulation ofUF imbedded in concrete/mortar will deteriorate over time, but that’s just my opinion
“ shoot low boys their riding shetland ponies”
“ shoot low boys their riding shetland ponies”
oldsparky52
Senior Member
- Location
- Wilmington, NC USA
Heck, IDK.
I agree with those that believe 340.12(8) prohibits Little Bill's installation with UF.'
330.10(A)(10) seemed to allow McLintock's installation. Now that I read this section again I'm not sure I agree with me either.
How are you not agreeing with yourself?
330.10 USES PERMITTED
If it’s was outside it would not be.
My install was in the house a “dry location”
This is the reason remodels and add on’s are a big waste of time and money, so many codes to go through.
“ shoot low boys their riding shetland ponies”
kwired
Electron manager
- Location
- NE Nebraska
Embedded in poured cement, concrete, or aggregate, except where embedded in plaster as nonheating leads where permitted in 424.43
Is the word "poured" referring to just "cement" or is it referring to concrete and aggregate, and maybe even to plaster that was mentioned?
Aggregate is a pretty generic word, but guessing it was intended to mean something mixed into a liquid or slurry consistency then cured into a solid for this instance. Kind of makes the use of words cement, concrete and plaster redundant other than to give some examples of what they intend it to apply to.
Is the word "poured" referring to just "cement" or is it referring to concrete and aggregate, and maybe even to plaster that was mentioned?
Aggregate is a pretty generic word, but guessing it was intended to mean something mixed into a liquid or slurry consistency then cured into a solid for this instance. Kind of makes the use of words cement, concrete and plaster redundant other than to give some examples of what they intend it to apply to.
- Status