| 摘要 |
PURPOSE: A circular ground board for an electric pole is provided to include a structure which broads contact surface with a ground and to increase electric resistance performance. CONSTITUTION: An insert member(40) of a metal material is inserted into a center of a ground main body(11). The insert member of the metal material has excellent conductivity. A ground lead line(50) includes a lead terminal in order to be projected to an outer circumference. The lead terminal is coupled with a ground line. The ground lead line is connected to the insert member.
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