still thinking about this job

[jeffelectric]

I'm in a lovely warm conservatory, underfloor heating,owner has done all the electrics and installed a rfc also.2.5mm t&e on top of heating mat .32a, don't know why he didn't do a radial 20a . Just thinking about derating the cable because of the heat/pulling it all out?

 

[Amp David]

Come again boss hogg!

 

[telectrix]

????????? please explain in plain english.

 

[Toonlad]

:iagree: ................

 

[snowhead]

Maybe checking the temperature of the floor that the cable is running through and comparing it to the cable rating would be the first step.

Cables are rated in degrees, not levels of warmth.

 

[Stroppy]

I think you'll find there is a British Standard definition of 'lovely warm'. Its on this wikipedia page, so must be true: http://en.wikipedia.org/wiki/BS_Warm_Levels

*rushes off to wikipedia, edit / new page...*

 

[Engineer54]

I'm in a lovely warm conservatory, underfloor heating,owner has done all the electrics and installed a rfc also.2.5mm t&e on top of heating mat .32a, don't know why he didn't do a radial 20a . Just thinking about derating the cable because of the heat/pulling it all out?

If it hasn't been screeded yet, then pull it out and/or re-route these cables that are laying on top of the heating mat. If already screeded then your pretty well stuffed!! ...The DIY owner will have learnt a valuable lesson, don't muck around with stuff you don't understand, and/or without using god's given ....''commonsense''!! lol!!