Ranger,
The only cable size that is still solid here is 1mm2, but only in TPS fixed wiring grade cable.
I've only ever seen solid core as a Line Mechanic in old Mains wires, so it was used over here at some stage.
Solid Core 16mm2 and 25mm2 was used here under the 1969 Regs, but mainly all of these wires have been removed.
It's really only way out in the sticks, that you come upon this sort of wiring!.
BTW, What is this Ragnar?, I'm not looking to hassle anyone for mispelling the username of Texas-Ranger, but I feel that this name has stuck!.
How do you feel about this,mate?. [Linked Image]