The stroke, which is about two inches across and between 200 feet and 20 miles long, lasts but a microsecond. Lightning travels 90,000 mi/sec (nearly 1/2 the speed of light), 100,000 times faster than sound and therein lies the reason thunder is heard after the flash is seen. No wonder the flash is difficult to watch from beginning to end it starts and stops at almost the same time. One hundred million feet per second is the quickness of the lightning streak through the sky. These storms combine to produce about 100 lightning flashes per second, each one with a potential of up to a billion volts, currents ranging up to 200,000 amperes and temperatures of over 54,000 degrees Fahrenheit. It's not lightning that causes the damage, it's lightning going through places you don't want it to.Īt any instant, there are more than 2,000 thunderstorms taking place throughout the world. Like it or not, that is about the best you can do. Lightning protection controls the PATH of the lightning after it hits. The purpose of lightning protection is NOT to stop the lightning from striking. That is also the 2nd and 3rd major reason.Īll photos courtesy of NOAA unless otherwise noted.
The first major reason is that many PV systems are poorly grounded and poorly protected. Lightning is the number one cause of catastrophic failures in solar electric systems and components.
Pump Installation Equipment & Accessories.Solar Pump Installation Equipment & Accessories.Solar Pump Controllers & Current Boosters.
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