Advice on chasing leads into solid wall for TV

[budest]

Hi Guys,

Looking for some advice on routing wiring/leads for a TV on a solid wall installation (see image). I will be chasing the walls and using conduit. The reason I cannot fit a media wall is due to the location of the radiator (and also I don't particularly want such a feature).

Red = Wiring Zones
Blue - Proposed new spur route for double socket
Purple = TV coax & HDMI route

1. How does the wiring routes look in my image?
2. Would also like to run 2xHDMIs in the coax conduit. How would I do this given the larger connection ends?
3. How do I carry out the 90º angles for the coax and HDMIs given that both cables prefer not be bent?
4. Am I even thinking about this correctly?

Any advice, tip or tricks would be greatly appreciated as this is for my own house and is my first attempt at doing this. Thanks.

 

[endecotp]

What’s the other side of the wall?

 

[budest]

What’s the other side of the wall?

That's a gable wall.

However, I have worked it out. I can use the fire (yellow) and make the angles behind it. So I can chase the wall horizontally to behind the fire and run the cables inside conduit. Bring them out behind the fire and then back into conduit again up to behind the TV and out through a brush faceplate. That should work, right?

 

[Murdochcat]

Coax and hdmi cables can run anywhere - there are no zones for these cables.

Where are the other devices going to be positioned?

 

[ebee]

Coax and hdmi cables can run anywhere - there are no zones for these cables.

Where are the other devices going to be positioned?

Why can they be run anywhere outside the zones?

 

[Sureitsoff?]

Don't forget to add a couple of cat5 or cat6 cables to the coax/hdmi run. Easier to do it now rather than later!
Coax/hdmi cables ideally need a sweeping bend rather than a tight bend about the radius of a tin of beans is ok. That is achievable in a double back box . Also bear in mind that if you want to put the HDMI cables in trunking the plugs are much bigger than the cable diameter so the conduit needs to be larger especialy if you want multiple hdmi leads or might do in the future.( my TV for instance has 4 HDMI inputs in use)

 

[trojanhawrs]

Why can they be run anywhere outside the zones?

Because they're low voltage and don't pose risk of electric shock.

That's a gable wall.

However, I have worked it out. I can use the fire (yellow) and make the angles behind it. So I can chase the wall horizontally to behind the fire and run the cables inside conduit. Bring them out behind the fire and then back into conduit again up to behind the TV and out through a brush faceplate. That should work, right?

Is that a newly plastered wall?

Is this ground floor or upstairs, and are you certain about the existing wiring going up from the sockets?

What is your floor contruction?

 

[ebee]

Because they're low voltage and don't pose risk of electric shock.

"Low voltage" includes mains voltages.

If you mean "Extra Low Voltage" is this excluded from requirements?

"Whether or not, are you happy to place cables in a place that might render them to be more easily damaged?

 

[trojanhawrs]

"Low voltage" includes mains voltages.

If you mean "Extra Low Voltage" is this excluded from requirements?

Yes, selv and pelv are another method of meeting the requirements without running within safe zones and providing RCD protection/earthed metallic containment.

"Whether or not, are you happy to place cables in a place that might render them to be more easily damaged?

I'd rather not, which is why I've asked about the direction of the cable runs and floor construction. However, if the cables are going up vertically from the sockets then the area under them is unlikely to be used for anything and the proposed layout doesn't look too bad. I'd just be mindful of the horizontal chase depth as you're not allowed to take out more than 1/6th of the wall thickness

 

[JohnD]

Because they're low voltage and don't pose risk of electric shock.

We all knew exactly what you meant, but I felt sure someone would have a go.

 

[EFLImpudence]

I doubt the OP knew.

I wouldn't call what Ebee wrote 'having a go'.


Why do so many people on here object so much to mistakes being corrected?
Surely it is better for everyone.

 

[flameport]

Coax and hdmi cables can run anywhere - there are no zones for these cables.

BS7671 says otherwise.
110.1.2(vi)

 

[Murdochcat]

^^ which is just nonsense

If you drilled into a coax or HDMI cable there is zero risk to life

 

[trojanhawrs]

BS7671 says otherwise.

Requirements are indeed made for these cables, if you look at regulation 522.6 you'll see that running them in prescribed safe zones is not one of them.

 

[endecotp]

Don't forget to add a couple of cat5 or cat6 cables to the coax/hdmi run.

Note that it’s possible to run HDMI over CAT6 cable (possibly pairs of) with suitable adaptors. (Note I’ve not personally done this!). That avoids the issue of connector size as you run bare cables.

There do exist mini- and micro-HDMI connectors. Whether you can buy long cables with them is a different matter.