Reference method ?

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maccarooni

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hi all

Hope you can help, ( as always you do ) I cant seem to find a reference method for a t+E cable in a loft on TOP of insulation.....

Any ideas

Macca

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maccarooni

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just in case anyone is wondering, the reason iti is on top of the insulation is there are 3 layers of 200mm insulation and they are at right angle to each other. the run is only 10m max on a 10mm t+e on a 40a mcb.

would like to know what ref method to pt on cert.

Macca

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maccarooni

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steptoe

i have looked but none for this scenario that i can see

Macca

 

maccarooni

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Apache,

surface clipped ....without the clips i could do but with the insulation, does this have change it somewhat.

Macca

 

maccarooni

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it is on top of the insulation as it would be a nightmare to move 3 layers of insulation to get down to the joists. no other way of clipping as nothing to clip to ( ie Wood) within 3 m parrallel of the run to the shower.

Macca

 
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I thought the issue insulation was heat build up. Now if cable sat on top then this shouldn't happen. I'm no spark but do the regs specify what the cable is surface mounted on? If not it has to be the same :|

 

maccarooni

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apache thanks for your input, .Guiness DrinkGuiness DrinkGuiness Drink

you would be right in saying that about heat rising as opposed to the cable being under insulation and the heat being trapped. However in ref methods with one side of cable touching say a plasterboard wall and the other 3 sides in ithe insulation there is a specific method for that. with only 1 side touching the insulation on top of the insulation and 3 sides free, that was what i was questioning,,if there is a specific for that

Macca

 

maccarooni

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I carried it up and ran it out to the shower from the cu...

Is that what your asking steptoe???? ?:|

 
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apache thanks for your input, .Guiness DrinkGuiness DrinkGuiness Drinkyou would be right in saying that about heat rising as opposed to the cable being under insulation and the heat being trapped. However in ref methods with one side of cable touching say a plasterboard wall and the other 3 sides in ithe insulation there is a specific method for that. with only 1 side touching the insulation on top of the insulation and 3 sides free, that was what i was questioning,,if there is a specific for thatMacca
Reg or not - heat can still disipate freely. If I insulate my walls and roof but leave me front door and windows open my house will be cold! Heat escapes where it can unless trapped by insulation.

:D

 

steptoe

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the cable got up there through avery narrow hatch ;)
macca,

you want a reason as to why you domt get a ref method to an install is because you cant give us an install to ref it to.

please try be sensible as to how your cable got to be in the loft, this is part of your ref, maybe why you couldnt find it.

 

maccarooni

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sorry, but your cable didnt start in the loft,

how did it get there?
OK Think i got you now...Pray

cu is mounted at ceiling height in hallway just below eaves of loft ( its a bungalow) :eek:

straight through cieling about 600mm to start of insulation, then straight on top of insulation, over to pull cord isolator back across top of ins and then straight through stud wall to shower.

hope thats what you meant:|

Macca

 

maccarooni

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i wasn't trying to be funny when i said through a very narrow hatch. i could hardly get through it.Blushing

macca

and im not a big lad

 

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