Flex from Unistrut down to a machine

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That doesn't look like flexible conduit, more like a flexible cord. Cords aren't too be used for permanent wiring, 400.12, I think.
 
tank728 said:
That doesn't look like flexible conduit, more like a flexible cord. Cords aren't too be used for permanent wiring, 400.12, I think.
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Flexible cord is allowed where it is necessary such as lights hanging from chains. A common use is the final connection to a motor (anti-vibration). Usually I see a local disconnect or a 4x4 box for the terminations switching to SO from the more permanent raceway. However it is not allowed where fixed/permanent wiring can be used. MC, AC, and TC-ER are some types which are permanent and somewhat flexible but not true cord and are allowed almost everywhere. They can be run in tray as well which saves a lot of time (labor). Standard tray cable (TC) has to be run in a raceway so needs an EMT or RMC stub at the ends unless you can run the tray right into the enclosure.

Not sure why you would even do that. You would need a conduit box for the terminations from the conduit wiring (typically THHN-2 or XHHW-2) to the SO, then two cord grips. You can use a conduit body (LC) for the terminations but that’s a Code violation too, and just as much work as a cast box. Either way far more expensive, time consuming, and not to mention illegal. The cheapest termination would be put an offset bend in the conduit and add a conduit termination to the receptacle box. Very simple and cheap. With push on connectors it is almost labor free. If you are running into bend limitations you can terminate the conduit into an LB with a close nipple into the box. This also eliminates the top connection that is frowned on in outdoor/dirty environments, although watertight compression fittings for EMT or Myers hubs for RMC take care of it with offset bends.

Or just run MC straight through, securing as required, terminating with a connector straight to the box. With good routing and plenty of clamps you can make it look almost professional.
 
T
paulengr said:
Flexible cord is allowed where it is necessary such as lights hanging from chains. A common use is the final connection to a motor (anti-vibration). Usually I see a local disconnect or a 4x4 box for the terminations switching to SO from the more permanent raceway. However it is not allowed where fixed/permanent wiring can be used. MC, AC, and TC-ER are some types which are permanent and somewhat flexible but not true cord and are allowed almost everywhere. They can be run in tray as well which saves a lot of time (labor). Standard tray cable (TC) has to be run in a raceway so needs an EMT or RMC stub at the ends unless you can run the tray right into the enclosure.

Not sure why you would even do that. You would need a conduit box for the terminations from the conduit wiring (typically THHN-2 or XHHW-2) to the SO, then two cord grips. You can use a conduit body (LC) for the terminations but that’s a Code violation too, and just as much work as a cast box. Either way far more expensive, time consuming, and not to mention illegal. The cheapest termination would be put an offset bend in the conduit and add a conduit termination to the receptacle box. Very simple and cheap. With push on connectors it is almost labor free. If you are running into bend limitations you can terminate the conduit into an LB with a close nipple into the box. This also eliminates the top connection that is frowned on in outdoor/dirty environments, although watertight compression fittings for EMT or Myers hubs for RMC take care of it with offset bends.

Or just run MC straight through, securing as required, terminating with a connector straight to the box. With good routing and plenty of clamps you can make it look almost professional.
Click to expand...
Thanks it has this on label LAPP ÖLFLEX® FD 890 CY Shielded so ran from a box in the ceiling sometime with finger lock then down to some boxes or machines and have another finger lock
 
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