Route a cable in loft

[shocksl]

Hey guys

As some ofbyou will know I'm doing an assessment and I have to draw some cables on a diagram.

I have done a basic diagram just for my understanding and hoppe someone can help me.

I'm doing a ring circuit. Cables will go up the wall into the loft . Floor is concrete.

To avoid insulation I will clip them above the joist. If you can see from my diagram . To from socket A to B can I lay the cables and clip them ontop the joist like that? I know i usually have to run it alongside the joist but in this situation I can't. So would this be acceptable ?

P.S I know i can include insulation as a factor in my cable calcs but that would mean I can't use a ring and have to make multiple radials circuits which I don't want. I want to do it like this.

Also if you see from socket C can I take the cable in a diagonal over the joists ?

My diagram is just an example for my understanding and not the work I plan to submit.


Thank you all!

 

[DefyG]

To from socket A to B can I lay the cables and clip them ontop the joist like that?

You need to know the depth of insulation as in many cases the insulation can be greater than the depth of the joist, so laying cable on top of joists means it could still be covered by insulation.

P.S I know i can include insulation as a factor in my cable calcs but t

You understand that insulation needs to be considered, just how far do you need to go to comply?