"David Pearson" wrote in message
...
Hi everyone.

Putting cable in contact with expanded polystyrene is a bad idea,
because it causes the PVC insulation on the cable to become
brittle.

Can this, or any other problem, occur when running cable
next to other thermal insulants?


There is no reaction with Kingspan, Celotex, Rockwool or fibre wool.

However bear in mind all of these insulate far better than polystyrene and
could cause the cable to overheat if laid poorly.