3 ms·
The lines themselves basically do not have twists anymore, it only happens at the special power poles (Verdrillmasten) and only statically (so no moving parts l
by zaarn 6y ago
The lines themselves basically do not have twists anymore, it only happens at the special power poles (Verdrillmasten) and only statically (so no moving parts like in PGE/CA). They're more modern and safer but more expensive when you need to change infrastructure resulting in a different load on the 3-phase, so you have to rewire those towers.
The upside is that rewiring them is somewhat safe and easy since you don't have to do it over the entire length between towers, only a few dozens meters on a single tower.
edit: quite a few places also use single-level masts, that don't have this issue at all.
- petertodd 6y agoWait, that doesn't sound right. It's a bit hard to tell with Google translate. But from what I see on the wikipedia article (https://de.wikipedia.org/wiki/Verdrillmast https://de.wikipedia.org/wiki/Verdrillmast) Germany is doing exactly the same thing as is done in the US - the US does not twist lines in midair. Only at poles. What do you mean by "moving parts"? The US lines don't have any parts that move more than slightly, which EU lines do as well (they have too: the lines themselves expand and contract, and move in the wind, so the insulators have to have flexibility).