Home › Electrical Engineering Forum › General Discussion › Lightning Protection › Re: Lightning Protection
2011/10/17 at 11:52 am
#12578
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Keymaster
The lightning arrestor will be inthe midlle
Q²=L²+W²
L=Roof long demention
W= Roof waid demention
h= hight of lightning arrestor
Z= buildind hight
if Z<30m ……….h=0.5Q+1
IfZ >30m ………h=(3/5)Q