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Flexible Conduit?
by gfretwell - 10/24/21 01:59 AM
May I backfeed 3 phase transformer?
by dsk - 10/22/21 04:37 AM
Wire sizing
by gfretwell - 10/21/21 10:12 PM
GFCI's pops in large numbers
by dsk - 10/21/21 02:03 AM
Need some info on Japanese outlets, 200V 15A
by andey - 10/20/21 08:05 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
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Joined: Nov 2002
Posts: 244
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wewire2 Offline OP
Member
My supplier cannot find a manufacturer that offers a 200A.
120/240V. meter/main commercial panel with test bypass that is rated over 22 KAIC. Anyone else run into this? Fused panels are available but the client wants breakers.

Joined: Mar 2003
Posts: 849
Y
Member
Whats the impendence of the transformer???
22 k seems up there fer 120/240 volt single phase>??
What K is readly available??

Joined: Nov 2002
Posts: 244
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wewire2 Offline OP
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22K panels are usually in stock. I am getting the specified AIC ratings off of the engineered drawings or utility reports. Seems like most of the jobs we do are 42-65 K rated.

Joined: Mar 2003
Posts: 849
Y
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If impendence is less then Aprox. 2.2 then you gotta jump up to 22000 .
50 kva secondary 208amps.
2.2 at 208 volts single phase. APROX.
I get APROX. 9454 , Its less if a distance away.
Check with Eng. But power companys always go high so do designers. You never wanna be lower then whats really required!!!!

Joined: Apr 2002
Posts: 7,283
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Did you check with Sq.D ?



John
Joined: Nov 2002
Posts: 244
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wewire2 Offline OP
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Tried Square D. B-line, Cutler Hammer, Milbank.

Joined: Feb 2004
Posts: 1,438
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RSE Sierra

If they don't have it, they'll manufacture what you need for your specs.... I believe they use Siemens gear

Joined: Nov 2002
Posts: 244
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wewire2 Offline OP
Member
I wonder why special order was not offered as an option. I'll have to check that one out. Thanks!


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