1 hour ago, Reddwarf4ever said:

Not possible I am afraid, the alarm cable ,is 6 core Think only two,used for the PIR and it is the highest quality I could get so screening should be good.......suppose it’s fingers crossed than ?

 

would it not been easier to make a few BFO holes in the coving shove the wire to the next BFO in the coving, rather than butcher the wall ?

 

1/2 a bag should sort your work-

 

 

but I understand its still hard to get hold of?

 

The coving isn’t continuous, that’s the first idea I had, the installer used gripfill at intervals to stick it, so can’t do that.....a neat chisel along the wall should suffice, just hoped that interference wouldn’t be a problem ?

12 minutes ago, MrHappy said:

 

would it not been easier to make a few BFO holes in the coving shove the wire to the next BFO in the coving, rather than butcher the wall ?

 

1/2 a bag should sort your work-

 

 

but I understand its still hard to get hold of?

 

Half a bag/? Lol that will do the whole wall 

Don’t think I am being ungrateful, but I had already cut the channel for the cable, having decided this was the best route, all I really wanted to know was the likelihood of mains interference causing spurious alarms, as the alarm cable is shielded.  Wasn’t really looking for different ways to route the cable......thanks

30 minutes ago, Reddwarf4ever said:

but I had already cut the channel for the cable, having decided this was the best route,

 

looking at your work.... I would recommend a wire free alarm on your next job.

 

30 minutes ago, Reddwarf4ever said:

the likelihood of mains interference causing spurious alarms

 

 

I assume very low,