On Sun, 31 May 2020 04:51:24 +0100, williamwright wrote:

https://www.dropbox.com/s/x3ong2y0ll...N3856.JPG?dl=0
https://www.dropbox.com/s/tjmd0jne0x...N3854.JPG?dl=0

Donno and wondered myself. They are a few about, possibly on poles
near fuses/air switches/auto reclosers. I wonder if they are retro
reflectors to help linesmen not familiar with the distribution(*)
locate the above key points? Seem far too complex a construction just
for that though.

(*) Drafted in from another region during storms etc...

--
Cheers
Dave.