| General > General Technical Chat |
| Long span between power poles |
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| Circlotron:
Was looking at some electricity wires today and they seemed to go a long way to the next pole. Pulled it up on Google Earth and the distance was 700 metres! These were ordinary concrete poles too, not huge pylons. Can't imagine how the wires would not touch in the wind. In the Google Earth link can just make out shadow of the two poles from the road on the left to the property on the right. https://earth.google.com/web/@-38.07736772,145.69252541,67.19248015a,1199.65974883d,35y,0h,0t,0r |
| themadhippy:
--- Quote --- Can't imagine how they would not touch in the wind. --- End quote --- the wind hits the lines from the same direction so they both should move in the same direction, |
| Ian.M:
Its quite common to fit mid-span insulated spacers to long spans (e.g. river crossings) in windy areas. |
| The Electrician:
I wonder what the longest power line span in the world is? Here's a candidate: https://www.tacomadailyindex.com/blog/tacoma-power-celebrates-tacoma-narrows-crossing-completion/993822/ |
| rstofer:
Long lines sag when overloaded during the summer heat waves (California). They touch the ground and we have a devastating wild fire. And really long outages! |
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