SE U

[geochurchi]

Hi, can SE U be used to feed an AC condenser????????????????????????........................

Geo

 

[infinity]

Yes, it may be used for branch circuits. {338.10(B)(2)}

 

[petersonra]

what is the difference between SE and SE U?

 

[Dennis Alwon]

Se is service entrance then it is distinguishable by SER- 3 wires and an equipment grounding conductor and SEU- 2 wires with an equipment grounding conductor.

 

[jim dungar]

I believe SEU means a flat cable, like an overgrown #12/2 NM, where the neutral is uninsulated and wrapped around the line conductors like a shield.
SER would be a round cable with the neutral insulated like the line conductors, more like a #6/3 NM.

 

[Dennis Alwon]

Some people say the "R" is for round - the cable is round and "U" for unarmored

 

[Little Bill]

Se is service entrance then it is distinguishable by SER- 3 wires and an equipment grounding conductor and SEU- 2 wires with an equipment grounding conductor.

SER can also be a 2-wire w/EGC, the "R" just means round. We all use the term SER to mean a 4-wire (3 with ground) but to be correct, SER can be either.

 

[Dennis Alwon]

SER can also be a 2-wire w/EGC, the "R" just means round. We all use the term SER to mean a 4-wire (3 with ground) but to be correct, SER can be either.

I have never seen ser with 2 wires and an equipment grounding conductor. If "R" means round then then how could 2 wire and a ground be ser. It is not round

 

[Carultch]

what is the difference between SE and SE U?

SE is the general term. SEU is a specific variant of it. SER is the alternative.

SEU = two insulated wires and several uninsulated wire strands distributed throughout the jacket interior of the oval-shaped cable. As a service conductor, the uninsulated wire formed by the strands when twisted can be your neutral. As a feeder/branch circuit, it can only be your EGC.

SER = 3 or 4 insulated wires, and a concentrated bare wire, forming an overall shape much closer to a circle. One of the insulated wires is marked white, to designate it for the intended application of being the neutral on the load side of the service disconnect.

 

[Little Bill]

I have never seen ser with 2 wires and an equipment grounding conductor. If "R" means round then then how could 2 wire and a ground be ser. It is not round

Southwire Type SE cable is constructed with Alumaflex® AA-8000 series aluminum alloy, compacted
stranded conductors. The conductors are covered with a sunlight resistant Type XHHW-2 or Type
THHN/THWN-2-insulation. A reinforcement tape is wrapped around the conductors for added strength
and conformity. A gray sunlight-resistant polyvinyl chloride (PVC) outer jacket covers the entire assembly.
Style SEU cable has two phase conductors surrounded by a concentric neutral while the SER style has
two, three or four phase conductors and a bare neutral.
Southwire Style SER Cable’s phase conductors are identified by a colored stripe on the insulation.
3 conductor – Black and Black with Red Stripe
4 conductor – Black, Black with White Stripe and Black with Red Stripe
5 conductor – Black, Black with White Stripe, Black with Red Stripe and Black with Blue Stripe

 

[Little Bill]

I did a little more research and found that the consensus is the "R" stands for round but there are others that say "R" stands for reinforcement tape. Either could be correct.