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setcc.akl
Member

Join Date: Jul 2009
Posts: 5

Lightening Protection and Shielding Angle

07/06/2009 7:35 AM

For lightening protection shielding angle for transmission line is taken 30° & in EPRI transmission line of reference book it is taken as 63°, whereas state government is taking shielding angle of L.A. 68° for protection of village areas & in ISS Shielding angle is taken as 45°. kindly inform reasons for change in shielding angle in various practices.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: Shielding angle for transmission line

07/06/2009 7:36 AM

...and the nations these references refer to are where, please?

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setcc.akl
Member

Join Date: Jul 2009
Posts: 5
#2
In reply to #1

Re: Shielding angle for transmission line

07/09/2009 2:39 AM

It refers to India (Maharashtra)
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