I've come across that cable wiring up DC lights with one end tied to earth.
Sadly without evidence of a power supply, you may never know!
Brian

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"Muddymike" wrote in message
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On 28/03/2020 15:49, ARW wrote:
On 28/03/2020 15:32, Muddymike wrote:
Ive just pulled out a length of dead cable that wasn't connected at
either end.
It was a twin core with red outer sheath containing one red and one
plain green cores. Any suggestions what such cable could have been for?



Lighting?

A variation of this

http://wiki.diyfaq.org.uk/index.php/...ightingCct.jpg


Maybe, but Ive yet to find the neutral.

Mike