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#43353 - 10/11/04 04:10 PM RG59 Conduit Fill  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
I need to calculate how many RG59's constitute 40% fill in a 2" conduit.

I am having trouble finding any reference for this.

I have been looking for OD dimensions but havent had much luck..

any suggestions or help is appreciated.

Mustang


Electricity has no respect for ignorance!

Work Gear for Electricians and the Trades

#43354 - 10/11/04 04:15 PM Re: RG59 Conduit Fill  
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
I don't see where article 820 references conduit fill. I'm not sure that you are limited to 40% fill.


Ryan Jackson,
Salt Lake City

#43355 - 10/11/04 04:20 PM Re: RG59 Conduit Fill  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,853
Brick, NJ USA
Mustang:
Other than doing it the 'old fashioned way (measure the diameter & do the math) I can't put my finger on anything.

Did you try the mfg????

Venturing a guesstimate.....coax is visually 'close' to #4 or #6 THHN????

John


John

#43356 - 10/11/04 04:23 PM Re: RG59 Conduit Fill  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
hi,
the 40% fill requirement is a client spec..i found out that RG59 is 7/16" in diameter. THIS IS SIAMESE CABLE.
So i guess i could just do a calculation just like for a regular ckt?

This is also a combo cable with 2 #18 awg installed with the RG59.

Thanks for the replies.

Mustang

[This message has been edited by mustangelectric (edited 11-01-2004).]


Electricity has no respect for ignorance!

#43357 - 10/11/04 04:56 PM Re: RG59 Conduit Fill  
stamcon  Offline
Member
Joined: Mar 2001
Posts: 329
So San Francisco CA
RG59 is only ΒΌ" OD.


#43358 - 10/11/04 05:47 PM Re: RG59 Conduit Fill  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
hi,
thanks for the replies...take a look at the following document. it has some interesting information regarding rg59 conduit fill.
http://www.brownstown.com/downloads/conduit-fill_require_.pdf

i got my dimension information from here: http://www.engproducts.com/products.cfm?ID=318

Still not sure. This is a COMBO CABLE/ COAX/#18 AWG PAIR

That was the best I had found until now!

Thanks for the replies..

regards

Mustang


Electricity has no respect for ignorance!

#43359 - 10/11/04 06:47 PM Re: RG59 Conduit Fill  
Scott35  Offline

Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,707
Anaheim, CA. USA
Mustang;

Quote

This is a COMBO CABLE/ COAX/#18 AWG PAIR


This is "Technically" [Linked Image] known as "Siamese" or "Siamese Cable".

Installed apx. 100,000 KM of the stuff!

The PVC (CMR, Riser, etc.) type Jacketed Cable has a larger O.D. than the Plenum (CMP) type Jacketed Cable.
Also, the Plenum Rated stuff pulls through Conduits better, but costs 2× - 3× the $$$ of PVC (Riser) Cable.

Cable Manufacturers will have the O.D. displayed on their web sites.

Scott35

BTW, thanks for the links! Will check 'em out.


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

#43360 - 10/11/04 07:47 PM Re: RG59 Conduit Fill  
golf junkie  Offline
Member
Joined: Apr 2001
Posts: 507
York, NE
I am interested for the same information for Cat 5. I know I can calculate it from the tables given but I would like a chart for Cat 5 in emt if it is available.

thanks,
GJ


#43361 - 10/11/04 07:47 PM Re: RG59 Conduit Fill  
e57  Offline
Member
Joined: May 2003
Posts: 2,876
S.F.,CA USA
The 40% fill req. is more of a TIA/EIA req. rather than NEC req.

If you do tele/data, or CATV etc. you may want to check these out. They are not all of the standard in it's actual format, but seeing that the go for $200 bucks each, these trunkated versions/explanations are just fine. Also very informative.....
http://web.anixter.com/Anixter/anixter.nsf/Standards?OpenForm

--------------------------------
Just looked at them again, the pages have changed, they used to have a lot more information on them before.




[This message has been edited by e57 (edited 10-11-2004).]


Mark Heller
"Well - I oughta....." -Jackie Gleason

#43362 - 10/11/04 09:21 PM Re: RG59 Conduit Fill  
mustangelectric  Offline
Member
Joined: Feb 2004
Posts: 494
Bentonville, AR
Hi,
I thought the Siamese cable was a FLAT type cable with the conductors run side by side more like a UF cable?

I thought the COMBO cable was a ROUND cable assy that is more like a MULTI COND TRAY CABLE?

I am working on a project where there are a lot of video cameras. Is RG59 not an outdated cable? It seems that all I ever hear about anymore is RG6..Is RG6 more digital friendly?

Thanks for the replies..very interesting information...you never know when this type work comes along..and it helps to stay informed.

regards

Mustang


Electricity has no respect for ignorance!

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