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SER CABLE #88099
05/10/04 10:28 AM
05/10/04 10:28 AM
M
mustangelectric  Offline OP
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
What article in the code would not allow a 3 Conductor SER cable to feed a sub-panel? An inspector is telling me the cable has to have an insulated neutral.

I ran the cable from a 200A MAIN CSED outside to a 200A load center in a basement. I ran ground wires along with the cable.

If there is an article that would allow this please let me know.

Please look at 250.142 B EX:2

Thanks for any replies.

-regards

greg

[This message has been edited by mustangelectric (edited 05-10-2004).]


Electricity has no respect for ignorance!
2017 / 2014 NEC & Related Books and Study Guides
Re: SER CABLE #88100
05/10/04 11:03 AM
05/10/04 11:03 AM
R
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
300.3
(B) Conductors of the Same Circuit. All conductors of the same circuit and, where used, the grounded conductor and all equipment grounding conductors and bonding conductors shall be contained within the same raceway, auxiliary gutter, cable tray, cablebus assembly, trench, cable, or cord, unless otherwise permitted in accordance with 300.3(B)(1) through (4).

Also:
250.184 Solidly Grounded Neutral Systems.
(A) Neutral Conductor. The minimum insulation level for neutral conductors of solidly grounded systems shall be 600 volts.
Exception No. 1: Bare copper conductors shall be permitted to be used for the neutral of service entrances and the neutral of direct-buried portions of feeders.
Exception No. 2: Bare conductors shall be permitted for the neutral of overhead portions installed outdoors.
FPN:See 225.4 for conductor covering where within 3.0 m (10 ft) of any building or other structure.


Ryan Jackson,
Salt Lake City
Re: SER CABLE #88101
05/10/04 11:26 AM
05/10/04 11:26 AM
M
mustangelectric  Offline OP
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
Thanks for the reply. I guess I will replace the csed with a 200A meter base move the main breaker down in the basement.

I think its best to just replace the panel with a 200MB panel rather than replace 100 feet of the SER.


-regards

greg


Electricity has no respect for ignorance!
Re: SER CABLE #88102
05/10/04 11:37 AM
05/10/04 11:37 AM
R
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
Greg: Please refer to the following code section, with the bold added by me, and be sure that your installation will comply. It sounds to me like if you have 100' of cable you won't meet this requirement.

230.70(A)(1) Readily Accessible Location. The service disconnecting means shall be installed at a readily accessible location either outside of a building or structure or inside nearest the point of entrance of the service conductors.


Ryan Jackson,
Salt Lake City
Re: SER CABLE #88103
05/10/04 03:35 PM
05/10/04 03:35 PM
M
mustangelectric  Offline OP
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
Yes your right I will have to replace the cable. It's too far for a main. If it was 10 feet or less I would do it but this is too far to have no protection from the basement to the pole!

For some reason I was thinking I could run a three conductor cable.

The design for this job has changed several times since the start.

Thanks for the help.

Sincerely,

Greg


Electricity has no respect for ignorance!
Re: SER CABLE #88104
05/10/04 03:39 PM
05/10/04 03:39 PM
R
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
Your welcome [Linked Image]


Ryan Jackson,
Salt Lake City

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