Plastering directly over T&E

[tedglen2]

Hello all.

I have goggled filling T&E with plaster and there are a lot of responses saying plaster will corrode the cable?

Is this just a myth? Will I be ok to just clip the cables then plaster over myself!

 

[SPARTYKUS]

All I can reiterate is "Thank god for the electricians who used oval conduit 30 years ago". Saves me a world of pain when I start on a rewire

You want to find the bloke that did it 30 years ago and buy him a pint.

 

[Guitarist]

You want to find the bloke that did it 30 years ago and buy him a pint.

I'd buy him 2

 

[Guitarist]

you can still get oval conduit of course......its just with costs being more at the forefront of peoples mind nowadays.......i mean look at the first thing out of their mouths...
`how much?`

Sparks, I find that it's only when subbin out to builders you get the "how much?" exclamation.
Usually, when I do rewires for people, it's because they want ME to do the job and trust that I do is what I consider necessary. I sometimes give people a "budget" version which cuts back on some of the luxuries, but I always stress that I use MK/Crabtree gear because it is good quality, LineProducts MF gear because it complies with regs, and my own level of perfectionism, which definitely ends up taking more time.
If they want cheap, then I wish them luck.
Push professionalism, not price.

I do, of course, acknowledge that living in an area with a high number of elderly people who "want it done right, like the old days", makes the quality aspect much easier to stress.

 

[Guitarist]

So basic protection is the cable insulation?

It doesn't even need to be double insulated, that means singles clipped to a wall, no capping and plastered is O.K.

.

I think you mean insulated and sheathed

412.2.4.1 states that along with basic protection, wiring systems must have adequate mechanical protection. This can be in the form of the sheath. Hope this makes sense.

 

[sparks1973]

I think you mean insulated and sheathed

412.2.4.1 states that along with basic protection, wiring systems must have adequate mechanical protection. This can be in the form of the sheath. Hope this makes sense.

correct...umpteen times i`v heard sheathing being refered to as insulation...it isnt.....its there to protect thi insulation underneath...

 

[snowhead]

I think you mean insulated and sheathed

412.2.4.1 states that along with basic protection, wiring systems must have adequate mechanical protection. This can be in the form of the sheath. Hope this makes sense.

Plaster.

 

[Guitarist]

Plaster.

Haha, as you wish...

 

[snowhead]

Haha, as you wish...

It's as protective as a cable sheath.:devilish:

 

[sparks1973]

It's as protective as a cable sheath.:devilish:

well sod it then...lets get the singles out and just clip em direct....swipe a bit of thistle over em....there!..jobs a gud un....
:cowboy:

 

[Edd]

Bit confused here,is it that people think that the capping is mechanical protection? It is in a sence but only for the plasterer who will dig into the cables.

But,, I think the mechanical protection reg is there for the people who think clipping Twin and Earths around a workshop is fine.

So as above, the plaster would indeed be mechanical protection. But as long as its us who carfully fill the chase for the plasterer then to skim over.

Note this is one example of a book load, I know we all read things diffrent.

 

[sparks1973]

Bit confused here,is it that people think that the capping is mechanical protection? It is in a sence but only for the plasterer who will dig into the cables.

But,, I think the mechanical protection reg is there for the people who think clipping Twin and Earths around a workshop is fine.

So as above, the plaster would indeed be mechanical protection. But as long as its us who carfully fill the chase for the plasterer then to skim over.

Note this is one example of a book load, I know we all read things diffrent.

well the thing is n all Edd....just clipping flat twin direct in a workshop is/was one of the scenarios given for the 2391...a double garage being used as a lawnmower repair shop i think......

 

[Guitarist]

Bit confused here,is it that people think that the capping is mechanical protection? It is in a sence but only for the plasterer who will dig into the cables.

But,, I think the mechanical protection reg is there for the people who think clipping Twin and Earths around a workshop is fine.

So as above, the plaster would indeed be mechanical protection. But as long as its us who carfully fill the chase for the plasterer then to skim over.

Note this is one example of a book load, I know we all read things diffrent.

The T&E sheath is simple "mechanical protection", which is why it is ok to surface mount T&E. If you are talking about specific mechanical protection, such as steel conduit, or "suitable for environment", then that is a whole different ball-game.
I think you are right Edd, some people do think that capping serves as mechanical protection....
I honestly don't think there is much to misinterpret here if you read the BGB.

 

[sparks1973]

they were running convection heaters of it...therer was no additional protection by means of RCD....just a few of the baddies as far as i can remember....

 

[Guitarist]

Re: Plastering directly over T&E

It's as protective as a cable sheath.:devilish:

Now you are just being cheeky... :6:

- - - Updated - - -

they were running convection heaters of it...therer was no additional protection by means of RCD....just a few of the baddies as far as i can remember....

Not......Tory politicians?

 

[sparks1973]

The T&E sheath is simple "mechanical protection", which is why it is ok to surface mount T&E. If you are talking about specific mechanical protection, such as steel conduit, or "suitable for environment", then that is a whole different ball-game.
I think you are right Edd, some people do think that capping serves as mechanical protection....
I honestly don't think there is much to misinterpret here if you read the BGB.

well a schedule of inspections has a box for `selection of equipment and protective measures suitable to external influences`....now obviously this doesn`t mean outdoors.....although that is also sometimes the case.....