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RE: power line insulators





On Thu, 12 Jun 1997, LUDWIK KOWALSKI wrote:

I think that the "fins" are there to keep some parts of insulators dry
when it is raining.


Then they'd be less effective in driving rains, with shifting wind gusts?

It's fun to guess about these things, so I'll play the game. Any insulator
must have a surface, and surfaces will get dirty and polluted, enhancing
surface electrical leakage. The fluted, finned structure of the insulators
increses the path length along the surface from high to low potential, and
therefore the surface resistance.

Someone might want to query a power company, just to test the knowledge of
their public-relations people.

-- Donald

......................................................................
Dr. Donald E. Simanek Office: 717-893-2079
Prof. of Physics Internet: dsimanek@eagle.lhup.edu
Lock Haven University, Lock Haven, PA. 17745 CIS: 73147,2166
Home page: http://www.lhup.edu/~dsimanek FAX: 717-893-2047
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