Ok here we go...PMF!

[dales133]

Also you should consider any wiring for side lighting before
closing the sides...

Way ahead of you mate
Was going to wire after the foam and route a Grove to run the wires before skinning.
Thanks plainsgirl when are you starting!!! Hurry up

[dales133]

put in some foam for a test fit, he cut it perfectly

[Sheddie]

What insulation are you using? Beware as some foam insulation reacts with the insulation on the wiring. Basically it will break down the insulation on the wires and will short out. As far as I know, it is a requirement in NZ to have your 230v wiring in conduit if it goes through foam.

[dales133]

Dow extruded polystyrene foam.
Pretty much the same gear the foamaholics here use.
To my knowledge it dosn't react with anything.
It's aparantly 3 x lighter ,8 x stronger than normal poly and has than less than 1% moisture absorbancy .
It self heals from impact too.

[Atomic77]

So now I'm thinking about the foam in my walls. I planned to route a groove to lay the wiring in... but now I'm worried about a reaction with the insulation? How do I find out if that will be an issue or not?

[Sheddie]

I would suggest that you check with the manufacturer, or go the cautious way and conduit it anyway. Or try Google.

[dales133]

So now I'm thinking about the foam in my walls. I planned to route a groove to lay the wiring in... but now I'm worried about a reaction with the insulation? How do I find out if that will be an issue or not?

That's exactly what I was going to do as well.
Might try to get hold of the guy and see.
I'm wondering if I layed down some polyurethane adhesive and bedded the wires into that in the rebate then piped more over the top to encapsulate it might be the go then?
My 240v will pay straight through the wall into the shore power so shouldn't contact the foam anyway it's only the 12v that I'm now concerned about

[dales133]

I've had a bit of a Google and haven't come up with any kind of warning.wheres GPW when we need him! He'd know for sur!

[Johnysteam]

Looks good!
Um yeah my electrician said that too, it can catch fire. Is it the heat from the current?

[dales133]

Not sure, but I want to find out!
And thanks Johnny! Again cool build you have there.are you in nz?

[Sheddie]

I just had a quick look and found this.http://www.branz.co.nz/cms_show_download.php?id=fb29a2046d5239aa476f66d111dff072bb3f2153

[dales133]

Thanks very much for that mate it could have been at the leat a very costly mistake at the worst deadly.
I see there are cables that are poly safe witch is what it go for.
As I said it's only 12v I'm concerned about but I still don't want internal wall issues as I'm not building it to come apart

[Sheddie]

Thanks very much for that mate it could have been at the leat a very costly mistake at the worst deadly.
I see there are cables that are poly safe witch is what it go for.
As I said it's only 12v I'm concerned about but I still don't want internal wall issues as I'm not building it to come apart

It was only 12v for me too, but there is no way once the roof was glued on that I wanted to have to get in there again.

[dales133]

So what did you do in the walls

[tony.latham]

I'm a 12V guy, but I'm 90% sure there is no restrictions in U.S. building codes involving romex running next to foam insulation.

Here's an interesting read: http://gfretwell.com/electrical/nema_ro ... _study.pdf

Of note, it makes no differences, as far as temperature, whether it's in conduit or not, since it'll still produce the same temperature.

T