Cable Route via Stack Boxwork

[TheScullster]

Hi all

Talking to a neighbour of mine about an understairs cupboard light yesterday. This cupboard has an internal load bearing wall with the internal soil stack just the other side.

So the question is:

Is it within regs to route a cable within a soil stack - there is copper pipwork in the stack and the cable would not be clipped, just hanging loose. The pipework is cold only so no temperature issues.

TIA

Phil

[Lobster]

Can't see why not - it's certainly been done in my house - but it shouldn't really "hang loose" (I know mine does!), any vertically suspended cable ought to be supported.

David