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Lightning protection systems - What they do and don't do. A lightning protection system's only purpose is to ensure safety to a building and its occupants if lightning happens to hit it directly, a task accomplished by providing a good, safe path to ground for the lightning to follow.
How to Protect Your House and Its Contents from Lightning. IEEE Guide for Surge Protection of Equipment 9. Although the lightning protection system is the most visible improvement, it is. only useful in the extremely rare direct strike scenario, such as in mode 4 of.