Internet Connection Issues: LAN Cable Next to 230V Cables - Possible Induced Voltage?

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#31 11803397 17 Jan 2013 20:21

jimasek jimasek

VIP Meritorious for electroda.pl

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Post #31
11803397 17 Jan 2013 20:21

mickpr wrote:
If the network works for you - it is not 100% certain that it will also work for someone else. It may or may not work.
So your "solution" goes a long way from the standard (so to speak).

@mickpr - you know very well that you cannot always stick to the standards, especially in plants where cable infrastructure already exists.
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#32 11803420 17 Jan 2013 20:25

mickpr mickpr

Level 39

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Post #32
11803420 17 Jan 2013 20:25

jimasek wrote:
You know well that it is not always possible to stick to the standards, especially in plants where cable infrastructure already exists.

That's right - sometimes you can't. But then Miś Uszatek and Gąska Balbinka take responsibility for the proper functioning of the network, because I am not ...
#33 11803634 17 Jan 2013 21:07

opu opu

Level 12

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Post #33
11803634 17 Jan 2013 21:07

I tightened on the emergency twisted pair No. 2 according to your scheme and the internet works. Tomorrow I will check twisted pair No. 1 because it has strange symptoms, when I had the website Pocztowy.interia.pl on, I was getting notifications about receiving an email and I could read it, but I could not call it myself, change the page. Tomorrow I will know more.

Added after 5 [minutes]:

Quote:
1. The minimum bend radius of the cable is four times the cable diameter.
2. The pairs at the plug should not be unscrewed over a length of 1.3 cm.
3. Network cables should run more than 30.5 cm from the twisted pair.
4. A distance of 1.02m should be kept from transformers and motors.
5. If the twisted pair is placed in a metal guide tray, the minimum distance from the power cables is 6.4 cm.
6. If it is necessary to cross the power cables with the twisted pair, they should be arranged perpendicular to each other.

ha tell this to my managers who tell me to throw the twisted pair into troughs with power supplies (under the floor), then they fly in one 10m conduit to the apartments and one point where there is TV, INT, TEL, and GN 230V and somehow everything works and does not meet any standard . The whole building has 60 apartments. That's how it was designed.
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Topic summary

The discussion revolves around internet connection issues caused by the proximity of LAN cables to 230V power cables. The original poster reports that despite establishing a connection, web pages do not load, suggesting potential induced voltage or interference. Participants emphasize the importance of proper cable termination and adherence to standards for wiring, particularly the significance of maintaining the correct order of twisted pairs and avoiding parallel routing of power and data cables. Suggestions include using a cable tester to check for continuity and correct connections, as well as considering the use of shielded twisted pair (FTP) cables to mitigate electromagnetic interference. The conversation highlights the necessity of following installation standards to ensure reliable network performance.
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