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A lightning rod or lightning conductor (British English) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. If lightning hits the structure, it is most likely to strike the rod and be conducted to ground through a wire, rather than passing through the structure, where it could start a fire or ...
Powerline worker performs maintenance of a lightning arrester on an electrical transmission tower in New Brunswick, Canada. A lightning arrester (alternative spelling lightning arrestor) (also called lightning isolator) is a device, essentially an air gap between an electric wire and ground, used on electric power transmission and telecommunication systems to protect the insulation and ...
The tower was newly built and had no lightning rod at the time; it was said to have been struck seven to eight times. Sullivan described a scene from within the tower, saying that "fire was jumping all over the place". Sullivan was said to then have run out from the burning tower, just before being struck a few feet away by lightning.
When lightning strikes a metal tower or strikes near a building containing electrical equipment, a large, rapidly changing magnetic field is generated. This magnetic field induces current onto power lines, often disrupting electrical service, and also induces current into other electrical conductors such as electrical equipment and even ...
Athletes weren't the only ones putting on a show in Paris this Olympics. Across the city, lightning and rain lit up the night sky and made quite a fuss for the athletes at the 2024 Paris Games.
However, a direct lightning strike (such as on a radio tower antenna) will cause the shunt to arc and conduct the massive amount of electricity to ground, protecting transmitters and other equipment. Another older form of lightning arrester employs a simple narrow spark gap, over which an arc will jump when a high voltage is present.
A lightning strike as seen from the village of Dolno Sonje, in a rural area south of Skopje, North Macedonia. Lightning striking the Eiffel Tower in 1902. The metal tower acts as a colossal lightning conductor. The presence of multiple bolts shows this is a time-exposure photograph
To facilitate the harvesting of lightning, a laser-induced plasma channel (LIPC) could theoretically be used to influence lightning to strike in a predictable location. A high power laser could be used to form an ionized column of gas, which would act as an atmospheric conduit for electrical discharges of lightning, which would direct the lightning to a ground station for harvesting.