Suspending Conduit vertically for camera pendants

[BastionSecurity]

Hello,
I need some help with what the code says for suspending a camera 18' from a beam with Rigid Conduit. I am attaching my mock-up camera mount but keep in mind the camera will have to suspend 18' down from the beam. I was planning on using the Edge type conduit beam clamp. Please advise.

 

[rlundsrud]

I would recommend a swivel plate like this.

 

[GrayHair]

I would recommend a swivel plate like this.

Agree on the swivel plate, particularly if forklifts are in use. Won't eliminate forklift damage but will certainly reduce it.

 

[gadfly56]

Agree on the swivel plate, particularly if forklifts are in use. Won't eliminate forklift damage but will certainly reduce it.

How does that help? The OP said that the cameras MUST hang down 18 feet. What does putting that swivel on the JB at the end of 18 feet of rigid buy you?

 

[GrayHair]

How does that help? The OP said that the cameras MUST hang down 18 feet. What does putting that swivel on the JB at the end of 18 feet of rigid buy you?

Without the swivel, something has to bend, break or otherwise move out of position. With the swivel, it's often just the camera that gets trashed; a quicker repair. At least that was my experience.

 

[Sierrasparky]

How does that help? The OP said that the cameras MUST hang down 18 feet. What does putting that swivel on the JB at the end of 18 feet of rigid buy you?

It buys you a flex point - 18' feet and a little touch by something and SNAP!
Other than just hanging by chain or cable I think it is a much better deal . I'd check the max weight of the swivel though. Probably use AL conduit

 

[wwhitney]

How does that help? The OP said that the cameras MUST hang down 18 feet. What does putting that swivel on the JB at the end of 18 feet of rigid buy you?

I think the proposal is to put the swivel at the top end of the 18' of rigid, not the bottom end. The bottom end would buy you a very small amount of displacement; the top end buys you a lot.

Cheers, Wayne

 

[Sierrasparky]

It buys you a flex point - 18' feet and a little touch by something and SNAP!
Other than just hanging by chain or cable I think it is a much better deal . I'd check the max weight of the swivel though. Probably use AL conduit

I think the proposal is to put the swivel at the top end of the 18' of rigid, not the bottom end. The bottom end would buy you a very small amount of displacement; the top end buys you a lot.

Cheers, Wayne

Thanks, that is what I was suggesting also.

 

[MAC702]

I think the proposal is to put the swivel at the top end of the 18' of rigid...

Ditto. This thread was great. I didn't know those existed.

 

[BastionSecurity]

All cameras will be hanging above conveyor belts so nothing will have the ability to hit the pipe. I didn't want to use the swivel plate because that means I will have to re-thread 100 pieces that I cut to length. Has anyone here used the clamp I posted a picture of. Thanks

 

[sblk55]

I have used that clamp and do not like it. It does not hold well I would prefer to bend a 90 at the top and use 2 pieces of strut and strut clamps. or use two of these.

 

[tom baker]

I have used a similar clamp with rigid conduit, worked just fine.

 

[hbiss]

I think it's going to look like hell with no way to adjust whether the conduit is plumb. That's why the swivel is the way to go.

Wasn't there a threaded eye to go on the end of a threaded conduit? Would be easier for low voltage like this. Just hang it from a hook and run your cable up and out of the eye.


ETA- like this only not decorative or that price. http://www.mylampparts.com/Products/Extra-Heavy-Screw-Collar-with-Ring-12-IP__SL18196.aspx
-Hal

 

[MattS87]

I think it's going to look like hell with no way to adjust whether the conduit is plumb. That's why the swivel is the way to go.

Wasn't there a threaded eye to go on the end of a threaded conduit? Would be easier for low voltage like this. Just hang it from a hook and run your cable up and out of the eye.


ETA- like this only not decorative or that price. http://www.mylampparts.com/Products/Extra-Heavy-Screw-Collar-with-Ring-12-IP__SL18196.aspx
-Hal

I think the OP is trying to accomplish hanging the conduit but doesn't want to thread/re-thread it after it's cut to length.

The 90* clamps mentioned work ok, but I would hang a piece of strut and use strut straps

 

[hbiss]

I think the OP is trying to accomplish hanging the conduit but doesn't want to thread/re-thread it after it's cut to length.

Kinda a** backwards to cut and tread the pipe then try to figure out if that clamp is a good way to support it. Wouldn't of taken that much more to thread the top end also while he was setup for cutting/threading even if he didn't use it for support. Nice to screw a bushing onto.

-Hal

 

[MAC702]

Kinda a** backwards to cut and tread the pipe then try to figure out if that clamp is a good way to support it. Wouldn't of taken that much more to thread the top end also while he was setup for cutting/threading even if he didn't use it for support. Nice to screw a bushing onto.

I don't follow. I was assuming the conduits have been cut with a saw, not a threading machine. Seems like trying to figure out a way to thread it later is a significant task.

 

[rlundsrud]

All cameras will be hanging above conveyor belts so nothing will have the ability to hit the pipe. I didn't want to use the swivel plate because that means I will have to re-thread 100 pieces that I cut to length. Has anyone here used the clamp I posted a picture of. Thanks

How do you have an 18' rigid pipe without threads at either end?

 

[MAC702]

How do you have an 18' rigid pipe without threads at either end?

Wouldn't he have the threaded end at the camera, a coupling between a 10' factory piece and an 8' piece, and a cut end at the top?

Also, there are 20' sticks of threaded RMC available.

 

[MattS87]

Wouldn't he have the threaded end at the camera, a coupling between a 10' factory piece and an 8' piece, and a cut end at the top?

That's what I picture as well.

 

[rlundsrud]

Wouldn't he have the threaded end at the camera, a coupling between a 10' factory piece and an 8' piece, and a cut end at the top?

Also, there are 20' sticks of threaded RMC available.

Then he could reverse it and put the threaded end at the top with the swivel and use a no thread coupling at the camera. It wouldn't weigh enough to require threads.