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#175044 - 02/20/08 11:09 AM Service Conductor size
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: 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
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#175045 - 02/20/08 01:40 PM Re: Service Conductor size [Re: Yoopersup]
Tom Offline
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Registered: 01/01/01
Posts: 1044
Loc: 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.
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#175046 - 02/20/08 02:50 PM Re: Service Conductor size [Re: Tom]
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: Michigan
That is the way it was Calculated.
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#175057 - 02/21/08 08:13 AM Re: Service Conductor size [Re: Yoopersup]
Alan Nadon Offline
Member
Registered: 03/10/05
Posts: 399
Loc: Elkhart, IN. USA
With six disconnects, and as calculated, it is Code compliant. Good to go. smile
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