- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Where does the NEC give this exception, i.e. "unless it is dual rated".iwire said:
Underground servcie entrance
- Thread starter RichEng
- Start date
- Status
A/A Fuel GTX
Senior Member
- Location
- WI & AZ
- Occupation
- Electrician
iwire said:
What about when used as the 4th wire EGC as part of a URD8000 3 wire feeder (Which is allowed to be brought into a premisis) and terminated nearest the point of entry?
- Location
- Massachusetts
Dennis Alwon said:
Dennis no exception necessary.
- Location
- Massachusetts
A/A Fuel GTX said:
Is it bare?
As I understand it straight USE is not flame retardant
A/A Fuel GTX
Senior Member
- Location
- WI & AZ
- Occupation
- Electrician
iwire said:
The USE is labeled, USE/RHH/RHW-2, so it is flame retardant and I see no problem bringing inside.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
iwire said:
I am trying to understand why we are allowed to use USE inside if it is dual rated. Wouldn't the NEC have to state that? As it stands now the NEC does not allow USE inside-- at least from what I can see.
A/A Fuel GTX
Senior Member
- Location
- WI & AZ
- Occupation
- Electrician
Dennis Alwon said:
Dennis, from what I can gather, it is related to the insulation being flame retardant and many of the newer USE's have the RHW-2 designation which allows it to be brought inside, IMHO
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
A/A Fuel GTX said:
I totally agree but where is that permission given that says if USE is flame retardant we can use it in the interior of a building.
UL says that non dual rated has not been tested for a vertical flame rating thus it is not allowed in the interior. Because dual rated USE has been tested for use inside does not necessarily allow us to use it there.
A/A Fuel GTX
Senior Member
- Location
- WI & AZ
- Occupation
- Electrician
I guess I'll answer your question with a question. If the insulation IS flame retardant, why would it not be allowed to brought inside?
- Location
- Massachusetts
Dennis Alwon said:
Dennis the fact that it is USE / RHW is all the permission you need.
If it has both ratings it meets the requirements for both
- Location
- Massachusetts
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
iwire said:
I see your point. I can't get over the fact that it is still USE...... I guess I will have to get over it.
A/A Fuel GTX said:
I agree it should be allowed but again the code doesn't state this. I agree logic should prevail but tell that to the judge.:grin:
- Location
- Massachusetts
Dennis Alwon said:
It is USE that is also RHW it can not be labeled RHW if it is not flame retardant.
Dennis it does not have to state it, RHW is OK for indoors and they could not stick the RHW label on a conductor that does not meet the standards for RHW.
You run into the same thing all the time with dual rated THHN/THWN.
THHN can not be run in wet locations but THWN can be.:smile:
charlie
Senior Member
- Location
- Indianapolis
OK, cut a bunch of small pieces of masking tape and place them over the letters "USE" everywhere they are exposed inside the building. Have a glass of wine, a bite of cheese, put on some soft music, relax for a little while, then get back to work and stop this foolishness.Dennis Alwon said:
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