The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Parking lot pole light swap....
by gfretwell
10/22/16 09:52 PM
International Wire Colour Codes
by Texas_Ranger
10/22/16 08:24 AM
Son of Sparky
by HotLine1
10/20/16 07:43 PM
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 12
renosteinke 6
HotLine1 6
ghost307 5
Potseal 4
Who's Online
2 registered (gfretwell, mbhydro), 251 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#64689 - 04/12/06 03:23 AM Cat 5 and intercom in same pipe
walrus Offline

Registered: 07/25/02
Posts: 671
Loc: Bangor Me. USA
Heres the deal, the latest and greatest in the gas pump world is networking with Cat 5 back to the oil compaines POS network. There by allowing the gas pumps to continue accepting credit cards if the cash register goes down. My problem is conduits under the cabinet. I have one for AC, I have one for leak detection, can I use one for both the intercom and Cat 5 or do I have to have seperate pipes? You can mix voice and Data, why not data and intercom?? I have a call into the manufacturer, just wondered what you guys think. 4- 3/4 pipes to run a pump seems ridiculous to me. I could use shielded cables if interference is an issue?

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#64690 - 04/12/06 08:21 AM Re: Cat 5 and intercom in same pipe
raider1 Offline

Registered: 07/08/05
Posts: 46
Loc: north logan, utah, US
I don't see any problems with mixing data and intercom wires in the same pipe. I am seeing alot of intercoms that are wired with CAT-5e cable now.


#64691 - 04/12/06 05:50 PM Re: Cat 5 and intercom in same pipe
JCooper Offline

Registered: 12/30/02
Posts: 229
Loc: Kendall Park, NJ USA
you should be fine, just to be safe you want to make sure you use the cable the intercom manufacturer says to use. Most of them want twisted solid cable, without shield. Aiphone intercoms will not work well at all if you use shielded cable.

#64692 - 04/12/06 06:12 PM Re: Cat 5 and intercom in same pipe
e57 Offline

Registered: 05/27/03
Posts: 2837
Loc: S.F.,CA USA
You might want to look into some of the spec's or even mock one up to see if there is any RF interferance between the two.
Mark Heller
"Well - I oughta....." -Jackie Gleason


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals