Patent ID: 7902455
Filing Date: 2011-03-08
Classification: H02G

Abstract:
1. A lightning arrester comprising: a conductive rod installed at an upper part of an object to be protected from a lightning for connection to ground at one end; a rod cap electrically coupled with the other end of the rod; a discharge plate electrically coupled with the rod under the rod cap and to which ground charges supplied from the ground may be charged; a charge pipe having a cylindrical shape surrounding the rod, formed of an insulating body to be insulated from the rod, such that it may be electrically charged with charges having a polarity opposite to ground charges; a charge plate electrically coupled with the charge pipe; and a plurality of charge pins disposed on and electrically connected to the charge pipe such that space charges in the air are charged to the pins by a thundercloud, wherein the ends of the charge pins are spaced a distance from the discharge plate such that potential between the space charges from the pins and the ground charges on the discharge plate may cause a discharge.