Daikin Industries, Ltd.

Keiko Yamazaki

Tatsuya Higuchi

Kouji Yokotani

Nobuyuki Komatsu

Mayuko Tatemichi

Takeshi Hazama

Akio Higaki

Masahiro Kondo

Tadaharu Isaka

A fluororesin film contains a fluororesin. The fluororesin contains two fluororesin species having different composition ratios of polymerized units. The fluororesin film has on at least one surface thereof a ten-point average roughness of 0.100 to 1.200 μm and an arithmetic average roughness of 0.010 to 0.050 μm, and the fluororesin film has a breakdown strength of 400 V/μm or higher.

Fluororesin film

A fluororesin film containing a fluororesin. The fluororesin film has on at least one surface thereof a ten-point average roughness of 0.100 to 1.200 &#x3bc;m and an arithmetic average roughness of 0.010 to 0.050 &#x3bc;m. Further, the fluororesin film has a breakdown strength of 400 V/&#x3bc;m or higher.

Provided is a twisted wire including a plurality of covered wires twisted together, each covered wire including a conductor and an insulator covering the periphery of the conductor, wherein the twisted wire satisfies Inequality (1): y&#x3c;A&#xd7;x/(z/500)+B (wherein x: a pitch length (mm) of the twisted wire, y: a collapsing rate (%) of the insulator, z: an elastic modulus (MPa) of the insulator, A: Constant A=&#x2212;1, and B: Constant B=11.5).

Twisted wire and manufacturing method thereof

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Osaka, Japan

Keiko Yamazaki