lightning arrester
device in power/telecommunication systems that protects against lightning, such that when a lightning surge happens, the current is diverted through the arrester to earth
en-US/ˈlaɪtnɪŋ əˈɹɛstɚ/
en-GB/ˈlaɪtnɪŋ əˈɹɛstə/
device in power/telecommunication systems that protects against lightning, such that when a lightning surge happens, the current is diverted through the arrester to earth