Wet Romex

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Here is what 334.10 says

A) Type NM. Type NM cable shall be permitted as follows:
(1) For both exposed and concealed work in normally dry locations except as prohibited in 334.10(3)
(2) To be installed or fished in air voids in masonry block or tile walls
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Of course, this is open to interpretation. I do not rough in until the house has at least some roof protection.
 
Jim W in Tampa said:
Ever see jobs that run out of money. Them wires might see weeks of rain or even years. Tar paper wont last forever.
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I have never been on a job that ran out of money but I have been on one that took me over a year to get roughed in because the owners couldn't make decisions. Fortunately the roof was mostly on and very dry inside.
 
Dennis Alwon said:
I have never been on a job that ran out of money but I have been on one that took me over a year to get roughed in because the owners couldn't make decisions. Fortunately the roof was mostly on and very dry inside.
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You been lucky. Many GC handle money poorley and will halt a job for a while. Was doing some duplex office buildings few years ago. Was told to go out to one of them to change and add a few things. This a group of 12 buildings and looked like a ghost town. Weeds were 4 foot high. Project had been sitting for months and i was only one there. I alerted my office that something is wrong and to be sure we were getting paid.
Seen a set of truses rotaway on this same job.
 
Jim W in Tampa said:
Ever see jobs that run out of money. Them wires might see weeks of rain or even years. Tar paper wont last forever.
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What the hell does that have to do with anything. :confused:

Show me the code ref that would allow an inspector to fail a rough inspection under the conditions you laid out.
 
Seems silly to fail a rough because the house isn't water tight.


What I don't like is having NM installed through the framing all exposed like that. We shouldn't allow wiring to go into until after the sheet rock :D
 
I did not read all of the posts ,.. so forgive me if this has been mentioned ,..


Taken from IAEI News, January/February 2006 Ed, pgs 88 & 89 ​


In general, cables with PVC insulation and jacket can withstand immersion in clean water for a [FONT=Arial,Arial]short period [/FONT]of time without being damaged as long as the ends are not immersed. For example,

a building may be subject to rainfall while under construction, and water may come in contact with the outer jacket of nonmetallic-sheathed cable. This is not prohibited by the [FONT=Arial,Arial]NEC[/FONT]. The UL Standard for Safety for Nonmetallic-Sheathed Cables, ANSI/UL 719, requires Dielectric Voltage-Withstand Tests after 24-hour water immersion of cable samples (with ends in free air).

If the ends of the cable are immersed for any period of time, however, the internal paper wrapping around the bare equipment grounding conductor will absorb and transfer the water into the cable assembly. The water may then start degrading the insulation or possibly corrode the conductors.
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​

 
The home owner is still unsatisfied
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I learned this from my first boss on my first job.

Some people will never be satisfied. You could show this customer volumes of articles and he would still want his wiring replaced with insurance claim money.
 
electricmanscott said:
What the hell does that have to do with anything. :confused:

Show me the code ref that would allow an inspector to fail a rough inspection under the conditions you laid out.
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Your missing the point. The inspector passes it and the job now sits and after a few months it likely will be getting wet. The damage is done and will then get covered up when job starts back up. But at the time it was dry.
 
Location, Dry. A location not normally subject to dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, as in the case of a building under construction.
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The definition of dry location combined with 334.10(A)(1) imply that you can install NM in a building that has not yet been sealed from the outside elements.
 
"If the ends of the cable are immersed for any period of time, however, the internal paper wrapping around the bare equipment grounding conductor will absorb and transfer the water into the cable assembly. The water may then start degrading the insulation or possibly corrode the conductors. "
Now tell me just how the ends will not get wet ?
 
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