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The Sphynx cat
Lightning arrester
A lightning arrester is a device used on electrical power systems to protect the insulation on the system from the damaging effect of lightning. Metal oxide varistors (MOVs) have been used for power system protection since the mid 1970s. The typical lightning arrester also known as surge arrester has a high voltage terminal and a ground terminal. When a lightning surge or switching surge travels down the power system to the arrester, the current from the surge is diverted around the protected insulation in most cases to earth.
A lightning arrester is a device used on electrical power systems to protect the insulation on the system from the damaging effect of lightning. Metal oxide varistors (MOVs) have been used for power system protection since the mid 1970s. The typical lightning arrester also known as surge arrester has a high voltage terminal and a ground terminal. When a lightning surge or switching surge travels down the power system to the arrester, the current from the surge is diverted around the protected insulation in most cases to earth.
External links
"Electrical Devices and How They Work, Part 14: Lightning Arresters" (article about lightning arresters and how they were used in early AC and DC power distribution systems), Popular Science monthly, February 1919, 5 unnumbered pages, scanned by Google Books
http://www.ArresterWorks.com - information on high voltage surge arresters.
Categories: Lightning | Electrical safety
Hidden categories: Articles with citations to Popular Science archive | Articles with verifiable citations via Google Books(and so on)
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