Liquidtite isn't...

[tomspark1]

I tried searching for this...Got a code violation on a T-pole for putting 12-2 nm in a 1' piece of liquidtite from the panel to a bell box. AHJ wrote: "Inside liquidtite is considered a wet location" from 334.10. Is this legit? Why is it called liquidtite if it isn't? TIA

 

[augie47]

Of course it's legit... an inspector wrote it
Seriously, a second reference would be 300.9. If the raceway is installed in a wet location the interior of the raceway is considered a wet location.
Most likely because most all raceways will accumulate moisture inside due to condensation and other factors.

 

[bphgravity]

See Section 300.9 of the 2008 NEC. NM cable is not listed for use in a wet location. [310.8(C) & 334.12(B)(4)]

 

[MasterTheNEC]

I tried searching for this...Got a code violation on a T-pole for putting 12-2 nm in a 1' piece of liquidtite from the panel to a bell box. AHJ wrote: "Inside liquidtite is considered a wet location" from 334.10. Is this legit? Why is it called liquidtite if it isn't? TIA

Is the inside of the LT a location...Nope....is the LT placed in a wet location...YEP.....is Type NM Cable permitted in a wet location..Nope...did you place it in a wet location...YEP. Yes, the inspector is LEGIT!

 

[electricalist]

How about in a slab for a house to a kitchen island or a floor plug? Nm in pvc,ent or anything.

 

[rhovee]

EMT is not permitted to be installed in concrete below grade. If you used NM cable through PVC underground (which under the slab to a kitchen island is underground if it's on grade), then it would be a wet location. So NM cable would not be allowed.

 

[electricalist]

Ent also known as smurf tube

 

[ceb58]

Ent also known as smurf tube

ENT can be installed in concrete with the proper fittings but you still cannot use NM. ENT is allowed in wet locations indoors but cannot be direct bury. For a slab house I run pvc with UF for a floor recpt.

 

[rlundsrud]

EMT is not permitted to be installed in concrete below grade. If you used NM cable through PVC underground (which under the slab to a kitchen island is underground if it's on grade), then it would be a wet location. So NM cable would not be allowed.

While I would never do it, I thought you could use EMT in a slab as long as the fittings were listed for use. It has been a while (15+ years), but I recall seeing fittings that said listed for use in a slab if wrapped in duct tape.

 

[raider1]

EMT is not permitted to be installed in concrete below grade.

While I would never do it, I thought you could use EMT in a slab as long as the fittings were listed for use. It has been a while (15+ years), but I recall seeing fittings that said listed for use in a slab if wrapped in duct tape.

Here is what 358.10 says about EMT in direct contact with the earth or installed in concrete.

358.10 Uses Permitted.
(B) Corrosion Protection. Ferrous or nonferrous EMT, elbows,
couplings, and fittings shall be permitted to be installed
in concrete, in direct contact with the earth, or in
areas subject to severe corrosive influences where protected
by corrosion protection and approved as suitable for the
condition.

Chris

 

[cowboyjwc]

Whoo hooo for once the inspector is right.:happyyes: