Capturing the Lightning Flash
A lightning protection system has a single, overriding purpose—to shield a building, its occupants, and its contents from the thermal, mechanical, and electrical effects described in accompanying pages. To do this effectively, the system must (1) capture the lightning current, (2) lead the current downward and, preferably, along the outside of the target, (3) prevent the occurrence of sideflashes both inside and outside the structure, and (4) conduct the current to a grounding system that (5) is able to accept the heavy flow of current and cause its harmless dissipation into the earth that surrounds the structure.
KeywordsRolling Ball Lightning Strike Lightning Flash Lightning Protection Lightning Current
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