How many RG6 in 3" EMT?

[rookie4now]

Anyone know conduit fill for RG6 of the top of their head?

Being low voltage, I'm thinking NEC doesn't really care, but practically speaking, with two 90s and about 80' pull.

 

[Bobhook149]

As many as will fit

 

[480sparky]

Chapter 9, Note 5.

 

[K8MHZ]

Chapter 9, Note 5.

Disagree.

820.110

"Exception: Conduit fill restrictions shall not apply"

 

[sameguy]

You need to know the diam. of the cable then its 60% fill or that might be for nipples. There is a fill per NEC.

 

[infinity]

You need to know the diam. of the cable then its 60% fill or that might be for nipples. There is a fill per NEC.

As K8MHZ has already stated there are no fill limits in the NEC for this type of installation.

 

[ItsHot]

As many as will fit

All of "em!:grin:

 

[sameguy]

Right you are. I still would go at 60% and use the diam. of the wire. You could fill it up and pull it with your truck! Nothing stopping you!

 

[LarryFine]

Let's try it another way:

Anyone know conduit fill for RG6 of the top of their head?

How many do you need to pull?

If they carry the same signal, amp-split them later.

 

[e57]

3" EMT - thats quite a bundle - but would suggest less for pulling ease...

Is this like that game where you guess how much money is in a bucket and you win it?

FIT - I'll say 80

PULL - I say 50..

 

[LarryFine]

FIT - I'll say 80

PULL - I say 50..

Now, if we can just find a way to fit without pulling . . .

 

[Volta]

If they are 11/32" diameter, 38 will be a 40% fill, and 57 will be 60%.
I would stay with the lower count.

 

[e57]

Now, if we can just find a way to fit without pulling . . .

I know there are calculations for 'Jamb factor', pulling tension and side wall pressure. But IMO it would take a full bucket of lube to get 60% fill with 5 people trying to keep it all straight going in... The first bend would jamb...

 

[Jim W in Tampa]

I would be carefull. They will not take the abuse that a thhn same size would. If you damage it you start over. I would pull them thru with perhaps a #6 and tape them to it. Any hard pulling and its over. Just how many you after ?

 

[rookie4now]

Thanks for all the answers. We only need 20 but the bldg. engineer seems to think that will be a problem. I don't know what he based it on but it didn't seem like it would be a problem. I guess I'll bring him a 3" 90 and 20 cables and let him play with it.

Thanks again for all the input.

 

[Jim W in Tampa]

Thanks for all the answers. We only need 20 but the bldg. engineer seems to think that will be a problem. I don't know what he based it on but it didn't seem like it would be a problem. I guess I'll bring him a 3" 90 and 20 cables and let him play with it.

Thanks again for all the input.

Its not about fitting it is about no damge from tentsion

 

[shepelec]

All depends, Do they have to work after?

 

[hardworkingstiff]

If they are 11/32" diameter, 38 will be a 40% fill, and 57 will be 60%.
I would stay with the lower count.

This is what I would do. (lower count)

 

[e57]

Thanks for all the answers. We only need 20 but the bldg. engineer seems to think that will be a problem. I don't know what he based it on but it didn't seem like it would be a problem. I guess I'll bring him a 3" 90 and 20 cables and let him play with it.

Thanks again for all the input.

20!

Oh thats nothin'! A little lube... But that depends on how long a run and which direction - vertical may be an issue...

 

[macmikeman]

Me and my crew put 40 RG-6 thru about 450 ft of 4" rigid we ran in the AOA ramp side of the airport 20 years+ ago. We cut knotches in the sides of our stake bed trailer to hold lengths of conduit to support the spools and drove it out to the install site all loaded to go. To pull 40 thru 4" it wasn't all that hard, but it wasn't exactly a snap either. I don't remember if we pulled by hand or with the tugger that time. We did hundreds of similar types of stuff with fiber optic cables also at that time.