UK Running conduit in walls to knockout boxes for low voltage cables?

[BillMcLeod]

Thanks for the advice, guys.

I am going to go for the 20mm PVC conduit drops from each of the knockout boxes as you suggest. I will run them to just under the floorboards. I will go for 1 per 1-gang knockout box (2 euro plate) and 2 for the 2-gang knockout boxes (4 euro plate).

The HDMI connectors are too big for 20mm conduit, so I am going to go with HDMI mini connectors and then fit mini-to-full convertors on the end.

Good advice about the conduit glue. I will get that done.

 

[Pete999]

You don't have to always glue conduit and it can be push fit. As long as it is properly supported and secured it will never come apart. Coming apart is only a problem with insufficient saddles, and boxes not fixed, poor workmanship in other words. I rarely glue plastic conduit.

Not glueing it is also poor workmanship in my opinion.

 

[littlespark]

Although I agree that plastic conduit should be glued, there will be no movement if the conduit is buried in plaster.

advise fixing with saddles... the old crampits that could be used will crush the pipe when hammered in.

 

[Pete999]

Although I agree that plastic conduit should be glued, there will be no movement if the conduit is buried in plaster.

advise fixing with saddles... the old crampits that could be used will crush the pipe when hammered in.

You would be hard-pressed to fix PVC conduit in a chase with saddles, a bit OTT, neither would I use Metal crampets designed for Metal conduit, either split, or solid conduit with PVC conduit, asking for trouble, I used Plasterboard nails each side of the oval tube to hold it in place whilst the compo set and kept it in place below the finished wall covering, when I was house bashing.

 

[Andy78]

Push clips work well in chases for both round and oval conduit.

 

[Pete999]

Push clips work well in chases for both round and oval conduit.

Yeah but saddles????? nah

 

[littlespark]

If the chase is wide enough, what’s wrong with saddles? No need to bother with the back bar, just nail it in place with felt nails.

To use the clip in fixings, you’de need to cut the chase deeper.

 

[radiohead]

I disagree on gluing being essential. It isn't if the conduit is installed correctly, if people are installing plastic conduit so badly that it requires gluing to remain secure then they need to have a look at their workmanship. However I respect the views of others who feel gluing is required even if installed properly, and am not so ---- that I feel the need to plaster other peoples posts with red crosses.

 

[ipf]

However I respect the views of others who feel gluing is required even if installed properly, and am not so *---- that I feel the need to plaster other peoples posts with red crosses.

I hope you accidentally left the 'b' out on that one...…..if not, I worry for you!…..but at least you don't use glue.

 

[Pete999]

I disagree on gluing being essential. It isn't if the conduit is installed correctly, if people are installing plastic conduit so badly that it requires gluing to remain secure then they need to have a look at their workmanship. However I respect the views of others who feel gluing is required even if installed properly, and am not so ---- that I feel the need to plaster other peoples posts with red crosses.

I disagree on gluing being essential. It isn't if the conduit is installed correctly, if people are installing plastic conduit so badly that it requires gluing to remain secure then they need to have a look at their workmanship. However I respect the views of others who feel gluing is required even if installed properly, and am not so ---- that I feel the need to plaster other peoples posts with red crosses.

So it's wrong in your eyes to disagree with someone is it Mate? and I agree that the red cross is a bit BANAL.
So how can I disagree without the red cross? and you consider gluing PVC conduit is only required if the conduit is installed incorrectly do you? Answers on a post caed leave the red crosses out please, it's BANAL