Exterior Cat6

LSZH - is low smoke, zero halon. That's fire-rated for enclosed spaces. Not ideal for external use.

I went with a spool of this 1 year ago:

Hard to know with the dearth of information in that description! Probably a similar spec to the cablemonkey stuff.

Stranded cable is typically for making up patch-cables while solid-core is called "infrastructure" and used in punch-down blocks. You want solid-core as it transmits better over distance than stranded. Don't terminate it in an RJ45, it's a pig and you will cry. Terminate it in a wall plug and patch up to the switch using a standard patch-cable. I'd run two cables in parallel and separate it from the power.

For SWA I'd personally stick to local electrical suppliers for electrical cable; you have comeback and they will stand over their products.

The guidance is that network cabling should be shielded and ducted separately from power cabling. 60m is a long run and running the cables alongside will cause Noise (crosstalk) from the AC mains into the CAT. CAT6 is less affected by crosstalk as the twists used to reduce the crosstalk are close-together and CAT6A even more-so, but the guidance still stands that it should be separated from mains cable.

Have a look at this discussion from the archives...

After doing a bit more reading on the matter, I think that CAT6A would be most suitable here as the wire-pairs are individually shielded and should offer the best outcome for your installation.

In regards to running two cables, that's down to redundancy really.

Are you planning on direct-burying the CAT or trunking it underground? I would not direct-bury it myself, I'd trunk it in suitable piping and run it in the same trench as the SWA, but separated by a few CM's, but I don't know the circumstances of your install. At least that way, you can replace the wiring if it becomes damp/damaged.

Correct, it's a material specification. Thanks for the correction.

its very hard to stop water from getting in, I tried before with medical gloves and it still go in!!! Id get 1 of these boxes and put the end of cable in it.

and then silonce it up once you have the cable inside, and then seal up in a few bags,

Or bundle up a good length of it and point the open end downwards and wrap it in a bag suspended off the ground and not in direct sunlight or exposed to rain. Then when it comes to fit it, lob off a good length from the end. It will be fine.

I have one of those Schneider junction boxes in direct sun/rain and it's very secure. No sign of damp after 3 years. They are only about 2 EUR at a wholesaler.

I have a cat5 cable running outside exposed to the elements for 10+ years and no sign of damage yet. This is ordinary indoor use stuff.