AIR COOLED CONDENSER
Probability (P) of a Lightning strike
Probability (P) of this Building being struck by Lightning in one year
Probability (P) = Ac x Ng x 10-6 (Equation-2, page 6 of IS 2309)
Input Considered:
Length of the building = 49 Mtrs
Width of the building = 43 Mtrs
Height of the building = 24 Mtrs
Effective Collection Area Ac = (L × W) +2(L× H) + 2(W× H)
+ 3.141H2
(Equation-1, page 6 of
IS 2309)
Effective Collection Area Ac = 8332.22 Mtrs
Lightning Flash Density Ng = 2.8 (Value taken for Site based on no: of
thunder storm days per year)
Substituting the above values in the equation for lightning strike probability
Probability (P) = 0.023330205
Probability (P) = 2.33×10-2