Cable conduit (relatively big and flexible)

[TonyHetherington]

Hi all

I need to run some A/V cables up the chimney (unused), - 2 x HDMI, 1 x RJ45 network and 1 x speaker lead. So the average 20mm conduit just won't be large enough, especiall to be able to pull any further cables through it if needed!

Any idea on where I can buy something like 30 - 40mm flexible conduit? I'm struggling! It needs to be flexible because the chimney is not dead straight down - it's wonky - it needs to be flexible, so I can't use something like plumbing pipe.

Any suggestions gratefully received!

Thanks

[Smiler.]

TonyHetherington said:

Hi all

I need to run some A/V cables up the chimney (unused), - 2 x HDMI, 1 x RJ45 network and 1 x speaker lead. So the average 20mm conduit just won't be large enough, especiall to be able to pull any further cables through it if needed!

Any idea on where I can buy something like 30 - 40mm flexible conduit? I'm struggling! It needs to be flexible because the chimney is not dead straight down - it's wonky - it needs to be flexible, so I can't use something like plumbing pipe.

Any suggestions gratefully received!

Thanks

How much do you need?

[TonyHetherington]

Urmmmm, no more than 10m certainly. It's going straight to the chimney above (I should have worked this out already, really! )

[Smiler.]

OK, I'll see what I can find. The problem with flex cond is that unless the run is fairly straight with little slack & not very full, the pulling of additional cables can catch & then the whole thing tries to move.

Are you looking to bury direct in the wall or run in a void?

[TonyHetherington]

Ah I didn't know it was your field - thanks for the help!

I'm looking to run it in a void, - the chimney cavity itself which is no longer used (and hasn't been for donkey's years).

Essentially I'm taking the signal and control from the big tele which is on the chimney brest in the lounge to the other tele which is directly above it in the master bedroom.

[Smiler.]

TonyHetherington said:

Ah I didn't know it was your field - thanks for the help!

I'm looking to run it in a void, - the chimney cavity itself which is no longer used (and hasn't been for donkey's years).

Essentially I'm taking the signal and control from the big tele which is on the chimney brest in the lounge to the other tele which is directly above it in the master bedroom.

Sorry to labour the inquisition

From what you say, the route will have 2 90° bends, one at the big TV location as it enters the void & the other at the upper location as it exits the void.

You might struggle to pull in further cables into this. Do you know what the dia's of the cables are?

[TonyHetherington]

No no, please do ask!

To explain in detail -

As you look at main tv in lounge on chimney breast....

To the bottom left will be all the boxes (V+, Wii etc). So the lounge TV will be connected independently to those boxes through the side of the chimney, as low as possible to hide it.

Then, those same boxes (V+, Wii etc) will be routed up the chimeny to up stairs also, whereby I will drill a hole in the same place on the upstairs chimney breast for the upstairs TV.

I was imagining that with a flexible pipe the bend could take it (regular flexible conduit would, in my mind, be ok - but perhaps that differs with larger stuff?). If so then, yes, you'd have 2 90deg angles (one bottom, one top) as the cables enter the chimney cavity.

Have I explaiend it approrpiatley?!

Thanks again, much appreciated

[DrDeAtH]

For what you are doing, you may get away with flexi pipe as used for garden ponds. If you go to your local aquatic supplier, they should have the various sizes of pipe on drums in the pond section. Worth a try...... although running cabling inside the chimney flue isnt something that is normally done

[PH5121]

Why not install two 25mm flexible conduits?

You can purchase flexible conduit in 10m contractor packs or 25m coils.