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Discuss Wire and hot pipes in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

T

tedglen2

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Hello – looking for some advice. I had an electrician rewire the house. He has finished over two weeks ago. I have pulled up some floorboards ready for some bathroom plumbing and have noticed. Some of the wires cross over the central heating pipes. They are about 1cm off from touching!!! Is there anything I can put over the pipe to stop the wires resting on the warm pipes?
 
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S

Silly Sausage

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  • #2
Without rerouting pipes or cables, the easiest thing would be to put foam lagging on the pipes.

edit...

unless they're going through holes or in notches!!!
 
Ted, weren't you doing the wiring under the sparkies supervision? That's my understanding from the previous threads mate and if so he can't have done a very good job of overseeing that bit of the install and you don't really have much of a comeback I'm afraid
 
T

tedglen2

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  • #4
Nope - i give up with wires ? i got someone in the end. what is foam lagging? is that pipe insulator stuff
 

Strima

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Get him back to re-route the cables correctly. Tell him to look at the big green book, 522.2.1.

Is the BGB printed in Polish... :lol:
 
T

tedglen2

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  • #8
dont see what esle he could have done. the wires would have to cross pipework at some point ? they not touching the pipes, i am just worried that if the wires go slack over time then they will be. The foam insolation should be ok ?
 
Do the cables go through notches? Are the notches covered with anything? Do the cables cross above or below the pipes?
 
T

tedglen2

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  • #10
cables go through holes... most cables run below but there are a few that run over in certain areas where the pipes run low. will the foam pipe stuff be ok on the warm pipes ?
 
S

Silly Sausage

  • Thread Starter Thread Starter
  • #11
I take it the pipes are parallel to the joists and the cables are crossing over the pipes...
I'd be happy with the foam insulation, it does work very well.
 
T

tedglen2

  • Thread Starter Thread Starter
  • #12
yes pipes are parallel to the joists
 

telectrix

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so do as said. insulation overr the pipes where they are close, as per archy's excellent picture ( bet that wasn't done by a wet-head.)
 
T

tedglen2

  • Thread Starter Thread Starter
  • #14
sily question but will the foam insulation withstand the heat from pipes ?
 
T

tedglen2

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  • #16
sorry, i thought they were jsut to put on cold water pipes outdoors lol
 

telectrix

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true, but insulation works both ways. it stops cold getting in and also stops heat getting out. the alternative is to lag them with asbestos, but not recommended if you want to live as long a me.
 
G

Geordie Spark

  • Thread Starter Thread Starter
  • #18
sorry, i thought they were jsut to put on cold water pipes outdoors lol
Nowadays, it's a regulation that central heating pipes must be insulated to keep the heat in them.

It's all to do with energy efficiency etc.
 
D

Dave 85

  • Thread Starter Thread Starter
  • #19
Get the sparky to rewire your house again. Im sure he'll be happy to oblige. It is, after all, easier than slipping a little bit of insulation between the pipe and cable.
 

Strima

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Get the sparky to rewire your house again. Im sure he'll be happy to oblige. It is, after all, easier than slipping a little bit of insulation between the pipe and cable.
Why was it not done properly in the first place?
 

Strima

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might not be the sparks' fault. wet-head may have been after.
Very true, I should have said the tradesman responsible should come back to sort it out. Insulation is a viable option but why bodge someone else's work to make things right?
 
S

Swicade

  • Thread Starter Thread Starter
  • #23
If your worried about cables becomeing slack and eventualy resting ontop of hot pipes put a wooden noggin inbetween the cables and pipes the full width of the gap between the joists....that way the cables will sit ontop of it,could even clip the cables to the noggin.
 

Taylortwocities

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Does it look as good as this?
Joists.jpg
And who came first. Sparky or electrician:eek:mg_smile:
 

kingeri

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Arms
Does it look as good as this?
View attachment 14158
And who came first. Sparky or electrician:eek:mg_smile:
I've seen far worse than that. Few years ago, rewired my grandmas house and found the T&E in the same holes as the copper hot water pipes, actually touching and in places wrapped around them. Surprisingly, I didn't find any issues with the old cables before I relocated and replaced them.
 

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