Arc resistance test of synthetic resin.

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  • 合成樹脂の耐アーク性試験
  • ゴウセイ ジュシ ノ タイ アークセイ シケン

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In the deterioration of synthetic resin caused by low voltage high current arc, it is considered that arc behaves inherently as a heat source. So, the arc resistance is usually evaluated from the viewpoint of deterioration by the equivalent heat source.<br>In this paper, several new test methods including the modified one by the equivalent heat source were examined to evaluate effectively the arc resistance of insulating materials. From the combined use of these test methods, the right evaluation of arc resistance seems possible.<br>As the new test methods, the arc resistance test by a gasoline torch lamp, the rotary type one by chemical flame, the arc resistance one by an instant infared heating apparatus among others were employed.<br>The comparison of the experimental results by these test methods was made, and it was observed in all cases that the resins such as silicone-glass and melamine-glass laminates showed high arc resistance and the resins such as PVC and phenol resins showed low arc resistance.

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