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EPA of Lighting Fixture

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Illuminator

Illuminator

Mechanical
Aug 1, 2003
4
I am being asked to specify the EPA (effective projected area) of one of our lighting fixtures. How is this calculated?
Is it:
a) Merely the cross sectional area of the fixture normal to the wind direction.
b) The cross sectional area times a coefficient that accounts for the shape of the fixture.

Does wind speed and altitude above the ground come into consideration when supplying a EPA figure?

Thanks in advance,
Gabriel
 
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