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Syftet med betongstolpar!? - Tänkbart nytt syfte.... (Elektrifiering/elektrisk drift)

av Kurt G Möller, Tuesday, January 22, 2013, 13:58 (4422 dagar sedan) @ Kent A

Fria funderingar från en som slipper räkna på det....

Skulle inte moderna btg-stolpar innebära vissa fördelar jämfört med stål??
Vilka krafter behöver egentligen en stolpe ta upp??
Egenvikten av ledning på 2 halva stolpavstånd
Vindtryck på sig själv + samma ktl-del.
Vissa dragkrafter om den står i kurva.

Sedan behövs det ju spännstolpar, men dem lämnar jag därhän t.v.

Du glömmer den allmänna dragspänningen i tråden - som även måste vara flexibel m h t olika temperaturer. Titta på alla vikter som hänger i spännverken.

Hela tråden:

 

Time: 206
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Time: 946
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE (mlf2_akismet_rating.spam = 1 OR mlf2_b8_rating.spam = 1)
Time: 984
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27) AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0)

Total time: 2144