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Service Conductor size #175044
02/20/08 02:09 PM
02/20/08 02:09 PM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 840
Michigan
Total Load 3200 amps , Switch gear rated at 4000 amps

9 sets of 3-500 Kcmil & 1-4/0 neutral = 3420 amps.

Load 3200 Wire 3420 gear 4000 amps.

No main Six 800 amp switches

Legal per 230.80& 230.90 a EXCEPTION 3

READ PAGE 150 & 152 2005 NEC CODE HANDBOOK

Service Conductors Adquate for Load, Gear rated Above Load
Should be good to go Right.

Whatca say guys???
Yoopers

2017 / 2014 NEC & Related Books and Study Guides
Re: Service Conductor size [Re: Yoopersup] #175045
02/20/08 04:40 PM
02/20/08 04:40 PM
Tom  Offline
Member
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
Provided that your 3200 amp load is 125% of the continuous load plus 100% of the non-continuous load, I'd say OK.


Few things are harder to put up with than the annoyance of a good example.
Re: Service Conductor size [Re: Tom] #175046
02/20/08 05:50 PM
02/20/08 05:50 PM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 840
Michigan
That is the way it was Calculated.

Re: Service Conductor size [Re: Yoopersup] #175057
02/21/08 11:13 AM
02/21/08 11:13 AM
A
Alan Nadon  Offline
Member
Joined: Mar 2005
Posts: 399
Elkhart, IN. USA
With six disconnects, and as calculated, it is Code compliant. Good to go. smile


Alan--
If it was easy, anyone could do it.

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