Data cables next to Power

[JUDGE]

Hi All
I need to run an ethernet cable from the 1st floor to the basement. The most direct and easiest route is through the existing trunking which has power cables in it. Is it ok to run the cat5e cable in the trunking if the cable is shielded? I assumed it would be, but some of the things I've read on the internet say it wont completely block interference from the power cables. The run is about 15M.

this is the Foil Twisted Pair (FTP) cable I was looking at.

Cat 5e Network Cable FTP Solid : Network Cables : Maplin

Any advice would be greatly appreciated

 

[somersetsparks]

The cat5e must also be insulated to 240v. And you certainly would still get some interference, especially if some of the cables are switch lines

If you can't satisfy the 240v insylation, then buy 5 lengths of mt0 or smaller trunking and run that inside the other trunking, then its just interference to tackle.

 

[Cyberprog]

I've never had any problems with doing this even with unscreened cable.

 

[somersetsparks]

I've never had any problems with doing this even with unscreened cable.

This is against regs - segregation of band 1 and band 2 circuits and could induce voltages on the data cable, especially if the cable does not have live/neutral or all three phases of 3 phase together e.g. switchline

 

[Deleted member 19807]

is this for a home network? i.e. low data traffic. If so it should be ok but as already said should be protected by some trunking from the 240v cables.

 

[Deleted member 19807]

This is against regs - segregation of band 1 and band 2 circuits and could induce voltages on the data cable, especially if the cable does not have live/neutral or all three phases of 3 phase together e.g. switchline

good point

 

[somersetsparks]

In reality though if it was domestic I would think it was ok for 15m run in shielded cable in mt0 trunking inside bigger trunking as hifly says.

 

[Mark_Burgess]

I've never had any problems with doing this even with unscreened cable.

I can also say this should not cause you any problems, if that is the only available run.

A factory I went to recently has data running along side 5 core SWA carrying 125A, and several ring final circuits along tray for 75metres, and they are using Unshielded Twisted Pair!!

 

[mogga]

I mind a while ago fitting aluminium trunking designed for inside dado trunking arround the data This stuff was specificaly designed for the purpouse

 

[somersetsparks]

A factory I went to recently has data running along side 5 core SWA carrying 125A, and several ring final circuits along tray for 75metres, and they are using Unshielded Twisted Pair!!

You will get it worse with switchlines, not with cables carrying all three phases or phase/neutral, as when all phases are together ion a cable it cancels most of the interference, same goes for ring mains as they carry live and neutral together.

 

[JUDGE]

Thanks for the advice fellas
I think i'll go for the mini-trunking inside the bigger trunking to give it that 240v insulation and then go for the screened cable as I'm pretty sure there are switch-lines in the trunking.
The job is in a pub, The data is just normal broadband internet coming off of the router: around 1.5 mbps (Not sure if that's classed as low data traffic). What is the worst that switch-lines could do to the signal?

 

[somersetsparks]

well with 1.5mbps, not much mate, so Iwouldn't worry, normal netwworks run at 100mbps and a lot these days on cat5e at 1000mbps.

 

[Deleted member 26818]

This is against regs - segregation of band 1 and band 2 circuits and could induce voltages on the data cable, especially if the cable does not have live/neutral or all three phases of 3 phase together e.g. switchline

Segragation can be achieved by using a cable for the ELV, that is rated at the higher voltage.

 

[oxocube]

then buy 5 lengths of mt0 or smaller trunking and run that inside the other trunking,

I'd love to watch you trying to do that