getting a grant for DIY loft insulation

In message , "dennis@home" writes

Still haven't justified your stupid statement, have you ?

As for the timer - It seems obvious to everyone else but you that the symbol is for a capacitor, the fact that some tosser (your brother?) seems incapable of using the correct symbol in the correct context should have registered in the space between your ears where, in other people, a brain resides

ISTR someone else came up with a similar device with the correct annotation

So unless you are actually going to justify your ridiculous statement regarding loft insulation, best STFU rather than exposing your stupidity

In message , "dennis@home" writes

I hate to split hairs, but no it wouldn't

copper is not only a a good electrical conductor, it is a good thermal conductor

relatively small effect, granted, but ...

Sorry, matey, wrong again, as usual

You live on planet Drivel, don't you

And who is going to go to the expense of 1m of insulation? - after

Its called engineering, dennis - getting the best result for the best price, any more really is diminishing returns

Oh, sorry - you were going to prove otherwise, weren't you - oops forgot, no you seem to have an aversion to backing up your statements

Still can't accept that you are wrong again geoff. You must be more stupid than even I thought.

Yet again you come here and get it wrong. What I said was perfectly true. If you can't understand it then I suggest you go away and learn why its true.

So you actually agree with what I said but decided to chuck in some insults and claim what I said was wrong just for the fun of it, either that or you really are more stupid than I thought..

That's exactly what I said but you still choose to argue. It just shows that you have a mental problem that you can argue about something that you agree with. You need help from a specialist.

In message , "dennis@home" writes

Just qualify your statement

In message , "dennis@home" writes

Of course it's not - and someone else pointed it out too

If you're going to claim 100% that means 100%

you have argued yourself into a corner - unless you deny the existence of conduction

Yes, but then you have to start including the life of the insulation in the calculations. My point was just that there has to be an absolute limit somewhere. At the other extreme, if the "house" has no walls at all and forced ventilation, the "inside" air temperature will always be the same as outside and any insulation at all (apart from blocking radiative losses to the night sky) will be wasted.

Idiot, of course its true. It says "If the insulation was perfect the derating would have to be 100%." You really should go and argue with the other children where you may, but probably don't, have a valid point.

My statement doesn't need backing up, it is true as it stands.

There is a table on page 267 of Guide to the Wiring Regulations 17th edition current carrying capacity of various cross sections of wire in various postitions of insulation or not..

etc etc

i am not qualified to interpret it in your case though..

For smaller cables I use 10A/mm^2 as a rough rule, on the assumption that it'll be buried somewhere along its length.

The 1mm in my loft is all free; a lot of the 1.5mm is buried but has a lot in hand.

Thanks for the figures - is there a separate table available anywhere, please? (I used to know a lot of these, about half a kilofortnight ago).

Looks as if I'm well in.