Quote:
The flexible plastic wire loom can be bitten through if they really try

The Stuff I'm talking about is meant to resist an attack by a garden spade, and be safe for burying in the garden, its ribbed construction woud be very difficult for a cat to bite through (funnily enough, the many cats we've had over the last 30 years have never shown any interest except in moving wires like vacuum cleaners).

Quote:
The wire loom does not have a big enough diameter to cover it

I'm not in the US, but I can't see it being different: The same thing comes in a number of larger diameters, on the railway(railroad) where I work, we use 4" stuff to protect point(turnout) wiring.
(A couple there for the UK v US thread!)
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Politics and Ideology: Not my bag