Safe minimum distances as recommended by Health and Safety via there website are

Low Voltage upto 1kV(1000V) is 1m -  typically from wooden poles upto houses along streets can also be from telecom poles too.

11kV -33kV is 3m - normally bigger poles, have 3 cables

132kV is 6m -  can be wood more likely smaller pylons

275-400kV is 7m - bigger pylons

The poles that are insulated are rated upto 1000v typically.

I've tried before to upload photos of different types of structures etc to no avail and regionally they can be so different.

Generally what we would come across, would be supply to houses. Typically but not definite would  be 2 bare wires at 230v or 4 bare wires 415v.  Some supplies are insulated 230v/415v and are twisted so would look like a thicker cable.

Though the base pole is insulated, it could be a good idea if the top pole was insulated too.

Hope this helps a bit

Quote from: Splash and dash on December 19, 2025, 06:07:36 pm

Quote from: CleanClear on December 19, 2025, 05:50:46 pm

Quote from: dazmond on December 18, 2025, 04:39:11 pm

Running diesel heaters on red diesel is not recommended at all. It cokes up the burner prematurely...

Urban Myth i'm afraid. Running something like that is exactly what red diesel is for.............. non taxable plant stuff, agriculture use etc....

It’s not an urban myth Wabasto themselves say not to use red diesel in them as it soots them up this is especially so in there fitment  into boats most boatyards will not work on them if they have been run on red , I don’t understand why red diesel does  this as its basically white diesel  with a dye in it , but that’s what the manufacturers say

Webasto say do not use BS2869 which most people call heating oil.
Webasto say to use EN 590, which is available as "RED diesel " from loads of places.
https://www.beesleyfuels.co.uk                       for example, sell both. As do most fuel suppliers.

Maybe a moot point, as Spruce has pointed out, it doesn't look like its legal to use it anyway.