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Title:
絶縁電線
Document Type and Number:
Japanese Patent JP7214625
Kind Code:
B2
Abstract:
This insulated electric cable is an insulated electric cable comprising a linear conductor and an insulating layer coated on the outer peripheral surface of this conductor, wherein the insulating layer contains a plurality of pores, the porosity of the insulating layer falls within the range of 20% by volume to 65% by volume (inclusive), the film thickness of the insulating layer is measured at 8 points on cross sections at 30 locations at 50 cm intervals in the longitudinal direction of the insulating cable, and the variability ratio according to formula (1) calculated from these measurements does not exceed 25%. Formula (1): variability ratio (%)=(4σ/average film thickness)×100 (in formula (1), average film thickness represents an average value of different measurements, and σ represents the standard deviation of the different measurements)

Inventors:
Makiya Ota
Yamauchi Masaaki
Kengo Yoshida
Tamura Yasushi
Application Number:
JP2019509639A
Publication Date:
January 30, 2023
Filing Date:
March 22, 2018
Export Citation:
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Assignee:
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Industries Wintech Co., Ltd.
International Classes:
H01B7/02; H01F5/06
Domestic Patent References:
JP2016126903A
JP2017016862A
Foreign References:
WO2013073397A1
WO2017014064A1
WO2014123122A1
Attorney, Agent or Firm:
Yoshinori Ikeda
Amano Kazunori