Quote:
Originally Posted by jrref
Actually, much is known about lightning and the effectiveness of lightning protection systems.
One of the misconceptions is that lightning protection systems do not work. They have proven effective for over 200 years and they do work if they are designed, installed, and maintained according to the National Fire Protection Association-780, Standard for the Installation of Lightning Protection Systems, 2023 Edition. The Principles of Lightning Protection are discussed in Annex B.
Another reference is The Art & Science of Lightning Protection Systems, by Dr. Martin Uman, from the University of Florida who has been studying lightning for over four decades.
Also over the years there have been may studies that have proven the advocacy of LPS. One such study was conducted at the University of Florida's International Center for Lightning Research & Testing at Camp Blanding.
There are many other references and data.
As far as the newer systems which try and prevent a lightning strike, as some have commented, yes these devices are currently installed and being evaluated for their effectiveness. NASA has an elaborate setup at the cape.
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You are talking about whether there is an effect of LPS. I am talking about the effect size of LPS. Knowing an effect and knowing an effect size are very different. For instance, do LPS lower the average likelihood of a lightning strike on a single-family home by 10% or 90%. This is an important question for insurance companies, mortgage lenders, home owners, and so on.
Effect != Effect size
If you have references to empirical evidence about the _effect size_ (i.e., magnitude of the effect) of LPS on structures in any quality scientific journal, please provide the references (i.e., name of journal, volume, issue, author, date) and I will read them. (A book is not a quality scientific journal.)
I don’t doubt there is an effect of LPS. I have a LPS. I would like to know the empirical evidence of the effect size of LPS on homes. I am skeptical strong evidence of the effect size exists.