David Dahle

David Dahle

Posted on 02/03/2014


Photo taken on February  2, 2014


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Glass Insulators in Service Glass Insulators in Service



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115kV


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Xcel Energy - Sioux Falls, SD

Xcel Energy - Sioux Falls, SD
Xcel recently retrofitted this line, replacing the sky yuk porcelain disks with GLASS.

André J.(Lineman80), Matt Weldon, Lewis Perkins, Pinnerbark and 5 other people have particularly liked this photo


6 comments - The latest ones
Tony Glen
Tony Glen
That is also odd with the middle phase not like the others! does Xcel do this often?
4 years ago.
David Dahle has replied to Tony Glen
It's to eliminate the two strings leaning in towards the pole. Xcel does this on davit arm lines where there is a slight angle in the line. There are also poles along the line where the single davit carries a dead-end and the two davit arms have the wire slanting away from the pole.
4 years ago.
Power Lines
Power Lines
Awesome! CL&P's used a lot of davit arms on their 115kV stuff in the past, mostly with the laminated wood poles.

Even better to see davit arms with glass disks! Nice to see that sky yuk is finally falling out of style. : )
4 years ago.
Justin S
Justin S
They did this to the two 115 kV lines near me, only they used the "self weathering" rusty arms rather than the galvanized. Glass too.
4 years ago.
David Dahle has replied to Justin S
Another section of this same line has those rusty arms - those went up after a wind storm knocked the line out of action for a bit.
4 years ago.
Matt Weldon
Matt Weldon
Nice shot there of the glass shining in the sunlight! Kind of weird hearing about porcelain insulators being replaced by glass. Now it would be great to hear about pintype porcelain being replaced by glass.
4 years ago.