| 摘要 |
PURPOSE: A lightning arrester emitting space charge in a multi-emission type is provided to reduce a current amount of impulse current passed through facilities or buildings when the lightning is induced. CONSTITUTION: A lightning arrester emitting space charge in a multi-emission type comprises a rod (100), a first discharge plate (210), a second discharge plate (220), discharge holes (211, 221), and discharge protrusions (212, 222). The rod is made of conductive materials and is earthed. The first discharge plate is made of conductive materials and is connected to the rod. The second discharge plate is made of conductive materials, is insulated with the first discharge plate or the rod, and is overlapped with the first discharge plate in parallel. At least one among the first discharge plate or the second discharge plate is penetrated through the discharge holes. The discharge protrusions are protruding from at least one among the first discharge plate or the second discharge plate. The discharge holes are paired with the discharge protrusions and are formed to each face the first discharge plate and the second discharge plate. The end of the discharge protrusions is positioned in the inner side of the discharge holes. |
