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Evaluation of ethylene propylene rubber as solid electrical insulation material of superconducting cable

Yukio Mizuno, Masahiro Iizuka, Yasuichi Mitsuyama, Masayuki Nagao, Kenji Horii1993年Fusion Engineering and DesignIF 1.7出版社

AbstractMechanical and electrical properties of ethylene propylene rubber (EPR) pieces were studied in comparison with polyethylene (PE) in the cryogenic temperature region to examine the possibility of its application to the solid electrical insulation material of superconducting cables. Mechanical properties of EPR are preferable to those of PE because of its low shrinkage. The electric strength and dielectric loss tangent of EPR are comparable with those of PE at liquid helium temperature. The use of EPR as an solid electrical insulation of superconducting cable is discussed based on the results obtained.

日本語訳

エチレンプロピレンゴム(EPR)片の機械的および電気的特性は、超電導ケーブルの固体電気絶縁材料への適用可能性を検討するために、極低温領域においてポリエチレン(PE)と比較して研究された。EPRの機械的特性は、その低収縮性のため、PEのそれらよりも好ましい。EPRの電気強度と誘電正接は、液体ヘリウム温度においてPEのそれらと同等である。超電導ケーブルの固体電気絶縁としてのEPRの使用は、得られた結果に基づいて議論される。

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