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Old 04-10-2010, 11:40 PM   #16
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90 degree corners around beams


I'll let others settle the neutral debate. Your 90deg. solution won't work like you show it. The radius won't lay that tight and you need significant room between bends. Why not pipe the outlets on TOP of the beam and saddle around your obstructions. Minimizes all exposure of the conduit. If you need a fixture at the bottom of the beam, use short radius conduit fittings (commonly called Jake fittings, into a box. I did an install very similar to this and it turned out great.

The saddle bends can be a bit tricky, but if you've got some time and not that many obstructions, it'll be worth it.

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Old 04-11-2010, 07:18 AM   #17
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90 degree corners around beams


I'll have to call the electrician to settle the current carrying conductor question. He'll know what my inspector will be looking for. I've been trying to do as much of the legwork as I can w/o constantly calling him. Was hoping to call him when I got a plan I thought looked good.

I considered running it along the top of the beams. My thought was to leave that open so I could store things on it. I could always build a simple shelf above the beam. Would probably be better anyway. Not sure that it buys me anything for the conduit, though.

I could also run the conduit under the beam and put short vertical offshoots, mounting the boxes as previously shown. I looked up the "jake" fittings. I found elbows with pullout corners. Not sure if that's what you meant. I believe I'd require some sort of "T" so the conduit could continue on.

I really thought figuring this out would take less than the week+ that it's been dragging on for!

Thanks for all the help guys, it's good to hear your practical input.
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Old 04-11-2010, 08:21 AM   #18
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90 degree corners around beams


Quote:
Originally Posted by tbeaulieu View Post
I'll have to call the electrician to settle the current carrying conductor question. He'll know what my inspector will be looking for. I've been trying to do as much of the legwork as I can w/o constantly calling him. Was hoping to call him when I got a plan I thought looked good.

I considered running it along the top of the beams. My thought was to leave that open so I could store things on it. I could always build a simple shelf above the beam. Would probably be better anyway. Not sure that it buys me anything for the conduit, though.

I could also run the conduit under the beam and put short vertical offshoots, mounting the boxes as previously shown. I looked up the "jake" fittings. I found elbows with pullout corners. Not sure if that's what you meant. I believe I'd require some sort of "T" so the conduit could continue on.

I really thought figuring this out would take less than the week+ that it's been dragging on for!

Thanks for all the help guys, it's good to hear your practical input.
Check the links in post #12.
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Old 04-11-2010, 08:27 AM   #19
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90 degree corners around beams


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Check the links in post #12.
Yeah, I saw those. It looks like the jake fitting to me. My first corner idea that was shot down was to use those on the corners, which I figured could get me 90 bends with the ease of pulling combined. It doesn't address the "T" issue, if I wanted offshoots. I assum, they have those, though. Will do some browsing on that site when I get a chance.

Thank you.
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Old 04-11-2010, 09:04 AM   #20
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90 degree corners around beams


There is no debate on the neutrals.

Darren is correct that in that a neutral is not counted when it is part of a multi-wire branch circuit (MWBC), but the original post stated there were 6 circuits, having 12 conductors, 8 of which are hots. The only way to get those numbers are (4) 120V and (2) 240V circuits.

Since there would be no MWBCs in that setup all neutrals are CCCs for derating purposes, so all 12 conductors are CCCs.

I didn't mention the MWBC exception because it didn't apply.

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Last edited by williswires; 04-11-2010 at 09:07 AM.
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