Cat5 cabling and interference. - Page 2

glatt · 12-01-2009, 07:25 AM

Quote:

Originally Posted by dar512

Have you already bought the romex, Glatt?

No, but I might have enough left over from another project. I figure I need about 15-20 feet of the stuff. Probably closer to 20 feet.

SteveDallas · 12-01-2009, 10:04 AM

Quote:

Originally Posted by tw

Just do it because I said so.

Isn't that what an MBA would say?

xoxoxoBruce · 12-01-2009, 10:13 AM

Would twisting the Romex help?

Or just run a hot line and use the sink for a ground.

glatt · 12-01-2009, 10:18 AM

Actually, that makes me wonder about another question. If I used some sort of low voltage lighting, like halogen, and had low voltage cables running along side the cat5, would that make it even less likely to cause problems?

Undertoad · 12-01-2009, 10:23 AM

Seems to me you'd want the opposite. They run transmission cables at the highest voltage possible, so that it's the lowest current possible.

glatt · 12-01-2009, 10:49 AM

Yeah, but I mean for interference with the cat5.

Undertoad · 12-01-2009, 11:33 AM

To avoid interference you want the lowest current possible. I believe halogen = lower voltage + higher current to get same lighting. Install regular voltage line and run fluorescent/compact fluorescent. Standard voltage, almost no current.

tw · 12-01-2009, 01:11 PM

Quote:

Originally Posted by SteveDallas

Isn't that what an MBA would say?

Yes - that was the point. Already irrelevant are the posted worries and fears (ie induced currents).

It's 60 Hertz electricity. It's digital signals at higher frequencies - different. Even if 60 hertz somehow got induced on the Cat 5 cable, filters in every network interface make it irrelevant. And then is something lese call common mode rejection.

Signal cables must not be in the same conduit as power wires - a human safety issue. All other worries(ie halogen which to electricity acts just like an incandescent bulb) are irrelevant.

Posted was to just do it. Already posted here are reasons far beyond what a typical MBA would ever understand. Or even want to know. But then MBAs want to be told how to think - not know why. Or feel - therefore invent things irrelevant or mythical.

Just install wires through the same hole. Ignore irrelevant signal quality speculation.

classicman · 12-01-2009, 02:27 PM

zippyt · 12-01-2009, 04:51 PM

The rule for Scales is put Both Power and Data in Metal conduit and Separate them by at least 6 inches ,
That Being said , I have seen power and data run in the same conduit befor ,
Cat 5 has a certin Twist rate ( So many twists of the wire per foot, or inch ) to help eliminate interference ,
You should be OK as Long as you are Not running a dryer or Arc welder ,
Now those Grow Lights in the Basement , well I dont know ,,,,,,,

ZenGum · 12-01-2009, 05:38 PM

Quote:

Posted was to just do it.

Great, now Yoda is endorsing Nike.

dar512 · 12-01-2009, 08:55 PM

Quote:

Originally Posted by ZenGum

Great, now Yoda is endorsing Nike.

*snort*

12-01-2009, 10:13 AM	#18
xoxoxoBruce The future is unwritten Join Date: Oct 2002 Posts: 71,105	Would twisting the Romex help? Or just run a hot line and use the sink for a ground. __________________ The descent of man ~ Nixon, Friedman, Reagan, Trump.

12-01-2009, 02:27 PM	#24
classicman barely disguised asshole, keeper of all that is holy. Join Date: Nov 2007 Posts: 23,401	<total/Tom, are you aware that the polls show the overwhelming majority of MBA's voted for Obama?/bullshit> __________________ "like strapping a pillow on a bull in a china shop" Bullitt

12-01-2009, 04:51 PM	#25
zippyt LONG LIVE KING ZIPPY! per Feetz Join Date: Mar 2003 Location: Arkansas Posts: 7,661	The rule for Scales is put Both Power and Data in Metal conduit and Separate them by at least 6 inches , That Being said , I have seen power and data run in the same conduit befor , Cat 5 has a certin Twist rate ( So many twists of the wire per foot, or inch ) to help eliminate interference , You should be OK as Long as you are Not running a dryer or Arc welder , Now those Grow Lights in the Basement , well I dont know ,,,,,,, __________________ "Success is getting what you want. Happiness is wanting what you get. " Brother Dave Gardner

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12-01-2009, 10:18 AM	#19
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	Actually, that makes me wonder about another question. If I used some sort of low voltage lighting, like halogen, and had low voltage cables running along side the cat5, would that make it even less likely to cause problems?

12-01-2009, 10:23 AM	#20
Undertoad Radical Centrist Join Date: Jan 2001 Location: Cottage of Prussia Posts: 31,423	Seems to me you'd want the opposite. They run transmission cables at the highest voltage possible, so that it's the lowest current possible.

12-01-2009, 10:49 AM	#21
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	Yeah, but I mean for interference with the cat5.

12-01-2009, 11:33 AM	#22
Undertoad Radical Centrist Join Date: Jan 2001 Location: Cottage of Prussia Posts: 31,423	To avoid interference you want the lowest current possible. I believe halogen = lower voltage + higher current to get same lighting. Install regular voltage line and run fluorescent/compact fluorescent. Standard voltage, almost no current.

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