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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.
A lightning rod (or lightning protector) is a metal strip or rod, usually of copper or similar conductive material, used as part of lightning safety to protect tall or isolated structures (such as the roof of a building or the mast of a vessel) from lightning damage.Its formal name is lightning finial or air terminal.uite simply, actually. The rod is made of a type of metal that is a very good conductor. Lightning will be attracted to the rod, which is the path of least resistance. From t â¦ here, the electricity passes down the rod, which is stuck in the ground, where the electricity is displaced.