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Topic Title: Life of wooden poles?
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Created On: 31 July 2013 10:50 PM
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 31 July 2013 10:50 PM
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Avatar for AncientMariner.
AncientMariner

Posts: 549
Joined: 14 December 2004

Having recently had some outside woodwork at home rot within 10 years of fitting, even though Tanalised, I am curious as to the life of wooden poles used, say for 11 kV overhead lines.

In particular I am aware of some wooden poles which are now over 55 years old. These particular poles are unusual in style since they are in pairs, about a metre apart at the base and joined together at the top, carrying three phase 11 kV in a triangular formation.

I guess old fashioned creosote had its advantages?

Cheers!

Clive

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Clive S Carver GCGI IEng MIET
 02 August 2013 08:09 AM
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irevans

Posts: 192
Joined: 07 March 2002

You might want to look at "Wood Pole Overhead Lines" by B. Wareing which is available in virtual library under "The Engineering and IT Reference Library". That has a section on wood pole life.

Cheers,
Ian.

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irevans
 03 August 2013 10:42 PM
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AncientMariner

Posts: 549
Joined: 14 December 2004

Thanks Ian, an interesting read.
Looks like the poles are still in life, just...

Thanks again.

Clive

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Clive S Carver GCGI IEng MIET
 04 August 2013 06:42 PM
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slittle

Posts: 3598
Joined: 22 November 2007

Clive,

A lot seems to depend on the ground conditions and foliage around them.

I've got some on farms which are over 40 years old (and probably second hand from "the board" when installed), but I know of another one which is being held upright by virtue of the 4 way pull on the top.... I can stick my hand in the hole in the bottom of it


Stu
IET » Energy » Life of wooden poles?

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