Egress From Electric Room

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Fitzdrew516

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Cincinnati, OH
Check out 110.26(C)(2) and read the exact language used -

I am trying to stay away from having to have 2 doors on my secondary electric room and I do not fall into the exceptions available to per 110.26(C)(2)(a) or (b).
Here's what I was thinking - Instead of feeding a 1200A panel into the room, I could feed (2) 800A panels or (2) 600A panels into the room. That way I wouldn't be hitting that 1200A mark.
Then I was thinking, well what if I just fed 1000A into an MLO. So I checked Square D's digest for the specifics on the I-Lines (that's what I'm specifying). It looks like they have 800A and 1200A MLO I-Lines available. Now go back and read the section listed above. I'm thinking that since it says "Rated 1200A or more" it wouldn't matter if I only fed the MLO with 1000A feeders because the panel would still be rated at 1200A and would fall under this rule.
That's how I read it. What do you guys think?

Thanks,
- Drew
 
Fitzdrew516 said:
I'm thinking that since it says "Rated 1200A or more" it wouldn't matter if I only fed the MLO with 1000A feeders because the panel would still be rated at 1200A and would fall under this rule.
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I read it this way as well. However, if your load calculations show that a 1000 amp board is all you need, then I would ask your sales engineer about buying the 1200A board and having it labeled at the factory as having a 1000 amp rating. I have not tried this before myself, and I don't know whether the manufacturer would agree, but I believe it would satisfy the NEC rule.

 
charlie b said:
I read it this way as well. However, if your load calculations show that a 1000 amp board is all you need, then I would ask your sales engineer about buying the 1200A board and having it labeled at the factory as having a 1000 amp rating. I have not tried this before myself, and I don't know whether the manufacturer would agree, but I believe it would satisfy the NEC rule.
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Good thinking, Charlie! :thumbsup:
I've used a similar work around for lighting compliance when the specified fixtures had removable lamps with a 100A max rating and we were using like 9 watt LEDs.
 
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