On Wednesday, 23 November 2016 19:11:38 UTC, Rod Speed wrote:
GB wrote

Just a minor warning: I had an extension lead on my desktop, in a sunny
position. I've just thrown it out, as the plastic has crumbled away.
Potentially very dangerous, as the conductors were showing.

I've got a long extension lead powering the medion wifi repeater that
is half way down the back neighbours back yard, providing free wifi
for that neighbour. The extension lead runs along the top of the fence
rail in full sun and it has lasted fine for years now, no plastic rot at
all.

I don't think we're allowed to do that in the UK. Even in the 60s my dad ran the cable in a metal pipe so it didn't get bitten by animals or be too exposed to rain adn snow and of course the sun.