TwinCitySparky
Senior Member
- Location
- Minnesota
URD (underground residential distribution) is just a type of USE cable that has 3 or 4 conductors twisted together.
UF cable
- Thread starter laketime
- Start date
- Status
- Location
- Massachusetts
Some URD is dual listed as USE but a lot of it is not and strictly speaking can not be used for NEC applications unless it has the USE marking on it.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
I think it is mainly used by POCO's since they are not under the NEC, though the supply houses around here sell it too.
TwinCitySparky
Senior Member
- Location
- Minnesota
laketime
Senior Member
Yes the meter has a main breaker. So I was wrong is saying UF I think what i am meaning is USE cable. I have 20 years in commercial and this is my first housing rough job so I was just looking at all options in feeding the house panel, which is this case I guess would be considered a sub panel.
Bobhook149
Senior Member
Will it be in pipe?
little sparkie
Member
- Location
- Mt. Airy, MD
Do you mean, instead of SEU for a service entrance? No way!! Besides it is not a permitted use (NEC 340.12(1)).
As to other applications, like feeding a subpanel or an outdoor branch circuit, UF is horrible stuff to work with anyway. I use conduit and conductors whenever I can. So if anything ever goes wrong or needs changed you can usually pull new wires in using the old ones like a pull string, or if you're adding wires you just use the normal methods like a fish tape.
As to other applications, like feeding a subpanel or an outdoor branch circuit, UF is horrible stuff to work with anyway. I use conduit and conductors whenever I can. So if anything ever goes wrong or needs changed you can usually pull new wires in using the old ones like a pull string, or if you're adding wires you just use the normal methods like a fish tape.
- Location
- Massachusetts
I agree with you and will add that I think it often gets used for NEC installations because it works well and no one is saying no.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
I've repaired conduits that the POCO hit installing theirs, High line buried at less than three foot in inner duct! Ours was just a 480 volt parking lot feed at six inches below theirs! Not something you want to hit with the mini-ex! Conduit will rip out of the ground just as easy as URD or USE.
- Status