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An electronic device that supplies electrical energy to a load. It can be AC or DC input. Typically DC output.

5 votes
4 answers
1k views

How do I tell a powerline apart from other wires?

I would like to be able to tell what is a powerline and what is not. Browsing on panoramax, I encountered the following scene in Saint-Martin-Terressus, France: On the left side of the road, I can re …
zabop's user avatar
  • 179
1 vote
0 answers
38 views

Why are there 2 stacks of insulators for some power cables?

I am looking at attachments of power cables to poles. I believe I understand what's going on in situations like this: There are insulators between the cables and horizontal wooden bar. 1 insulator s …
zabop's user avatar
  • 179
-1 votes
1 answer
61 views

How to know what are the cables slightly below insulated powerlines in Norway?

Recently I discovered that in some cases, power lines in Norway have seemingly 4 cables. Ie this one: From a slightly different angle: (Source of these images.) On Bing Streetside as well: Google S …
zabop's user avatar
  • 179