I'm planning to put some new burglar alarm cabling in place while
redecorating in order to hide some of it better than in the current
installation and to change the location of some of the components.
The system is serviced and the company responsible for the servicing
will reinstall the components in the new locations at some appropriate
point in the future but it is more convenient for me to put the wires
in place now. I bought a reel of 8 core cable but have since realised
that the current installation uses 6 core. Is there any downside to
me using the 8 core? I suppose if it exactly the same as 6 core but
with a couple of extra wires then presumably it doesn't matter. The
only thing I wondered was whether they used thinner wires or something
in order to fit the 8 cores in. Basically I'm wondering whether I
need to take it back, which would be a bit of a pain.

Thanks,

Bob