conduits to cable tray

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stickelec said:
I'm going to buy-in that the conduit needs to be closed based specifically on 314.15 (A) and 314.17 (A)

Exact and to the point code references certainly streamline things and make discussions more beneficial.

I work over the entire State of Texas (Industrial) and I would venture to say this is probably one of the most overlooked requirements in construction.

Cheers...
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How about the conduit fill and bending radii when stuffing Tray Cable(s) into conduit?
 
I don't want to start laying out hypothetical conduit and wire schedules.

Speaking in generalities however, if I could (per NEC) put 10 cables in a 2" does that mean I would instead have to run multiple conduits to accommodate the closure device(s)?

I can see this could drive the Time & Material costs out the roof. Maybe you know of another method than the OZ Gedney device you mentioned?
 
stickelec said:
I don't want to start laying out hypothetical conduit and wire schedules.

Speaking in generalities however, if I could (per NEC) put 10 cables in a 2" does that mean I would instead have to run multiple conduits to accommodate the closure device(s)?

I can see this could drive the Time & Material costs out the roof. Maybe you know of another method than the OZ Gedney device you mentioned?
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That is why the answer is:

http://www.cablofil.com/best_practices/industrial.htmlhttp://www.flextray.com/pages/whyUse.php
 
Weressel, I think you bring up good points, but I also think I understand why it is so widely "overlooked" in the industry. I don't expect to see a big rush to comply until the manufacturers make the necessary hardware readily available. Thanks
 
stickelec said:
Weressel, I think you bring up good points, but I also think I understand why it is so widely "overlooked" in the industry. I don't expect to see a big rush to comply until the manufacturers make the necessary hardware readily available. Thanks
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Stick,

I believe the hardware has been available, unless I am missing what is the unavailable hardware.
 
As far as I can determine, OZ is the only manufacturer although I do have an inquiry into Crouse and Appleton.

At $200 a pop, and the fact that there probably isn't a stocking distributor within hundreds of miles...it doesn't look favorable for widespread acceptance.

I suppose a Crouse EYS or EYZ (poured) would work but I would have to have on PPE before bringing that up in a design meeting.
 
stickelec said:
As far as I can determine, OZ is the only manufacturer although I do have an inquiry into Crouse and Appleton.

At $200 a pop, and the fact that there probably isn't a stocking distributor within hundreds of miles...it doesn't look favorable for widespread acceptance.

I suppose a Crouse EYS or EYZ (poured) would work but I would have to have on PPE before bringing that up in a design meeting.
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I see your point. But that installation method is just one of the acceptable methods, not the only one.

IMO it is silly to put Tray Cable 'back' into conduit since CT installation was introduced as an alternative to conduit with significant cost saving. Channel for individual drops were always there and wire basket has further expanded that option with significant ease of installation.
 
weressl said:
I see your point. But that installation method is just one of the acceptable methods, not the only one.

IMO it is silly to put Tray Cable 'back' into conduit since CT installation was introduced as an alternative to conduit with significant cost saving. Channel for individual drops were always there and wire basket has further expanded that option with significant ease of installation.
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We do use Channel as well, but there is still a lot of underground that has to make it to the Tray...or Channel.
 
stickelec said:
We do use Channel as well, but there is still a lot of underground that has to make it to the Tray...or Channel.
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As I pointed out before; unless you are going to strip thew jacket and terminate the conductors the TC can be installed in the conduit with just abrasion protection at the entry and exit points. Pop-on bushing will suffice. Since it is an OPEN conduit you are only using it for mechanical protection as a support and no closing is required, no stress relief is involved either.
 
weressl said:
As I pointed out before; unless you are going to strip thew jacket and terminate the conductors the TC can be installed in the conduit with just abrasion protection at the entry and exit points. Pop-on bushing will suffice. Since it is an OPEN conduit you are only using it for mechanical protection as a support and no closing is required, no stress relief is involved either.
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This one will generate some interesting discussions in the future I'm sure (on my end). Thanks for your time.
 
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