Yasukuni Kuzuma

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Some metal strands of OPGW (composite fiber-optic ground wire) are sometimes melted and broken by lightning strikes. DC arc tests simulating lightning strikes have thus been performed to obtain their melting and breaking characteristics. In this paper, calculations regarding these melting characteristics are performed considering the transferred heat and(More)
Some strands of composite fiber-optic ground wire (OPGW) are sometimes melted and broken by high-energy lightning strikes. DC arc tests simulating lightning strikes have been performed to obtain the melting and breaking characteristics of OPGW strands. The tests have to be performed under many conditions concerning the arc (e.g., current, duration,(More)
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