Dave Liquorice wrote:
On Fri, 05 Jun 2009 15:04:10 +0100, John Rumm wrote:

I don't know how sophisticated the "anti tamper" is - if its just a 12V
hold off without any clever cable impedance change detection, then it
sounds trivial to defeat.

Decide where you want the new cable to go and install it - leaving ends
close to exiting cable. Strip the outer sheath of the existing cable
adjacent to new cable ends, and join using a suitable terminal box[1].
Repeat at other end, now remove unwanted cable section[2]

Yes that would work but it assumes you know which core does what in the
cable. There is no standard for this and indeed there shouldn't be... A
single installation or one done by the same person/company might be
consistent but that is about as far as it goes.

Don't see why you need to know the function of any of the cores as long
as you ensure continuity of all the wires is maintained. So bridge each
wire to itself, and then cut the originals.

The difficulty may come if the cores are all the same colour - making it
harder to tell which is which (although in this circumstance you could
just strip all the outer from the section to be moved, and identify the
cores that way)

--
Cheers,

John.

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