| 摘要 |
An arrester in which the foregoing problems are solved, and the arrester is characterized in that in an arrester storing a current limiting element in a pressure-proof housing, the pressure-proof housing is composed of a conductive material and coupled with upper electrode member. And, a self arcextinguishing arrester which is characterized in that the current limiting element and upper and lower electrode members are housed and fixed in a conductive pressure-proof housing opened at its lower portion through a suspension structure composed of a suspension rod, the outside and inside of the housing being covered with an insulating portion and filled with an insulator respectively, so that, upon occurrence of an internal arc due to a short-circuit fault or the like, the lower electrode member breaks the insulator in the vicinity of an opening portion of the conductive pressure-proof housing by an energy due to the arc so as to electrically connect the conductive pressure-proof housing to a part of the lower electrode member.
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