ELECTRIC WIRE FOR COMMUNICATION AND WIRE HARNESS

• Main Author: KASAHARA HAJIME
• Format: Patent
• Language: English; Japanese
• Published: 03.10.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

To provide an electric wire for communication and a wire harness which have high flame retardancy.SOLUTION: An electric wire 1A for communication includes a twisted pair wire 2 obtained by twisting a pair of insulated wires 11A and 11B having conductors 111 composed of a single wire or a twisted wire and insulating coatings 112 that have insulating property and cover the outer peripheries of the conductors, and a sheath 12A covering the outer periphery of the twisted pair wire 2, wherein a characteristic impedance is within 100 Ω±10 Ω, an insertion loss at a frequency of 66 MHz at room temperature is less than 0.68 dB/m, and the sheath 12A contains a bromine-based flame retardant and antimony trioxide.SELECTED DRAWING: Figure 1 【課題】高い難燃性を有する通信用電線及びワイヤハーネスを提供する。【解決手段】通信用電線１Ａは、単線又は撚線で構成された導体１１１と、絶縁性を有し導体の外周を被覆する絶縁被覆１１２と、を有する絶縁電線１１Ａ、１１Ｂが対撚りされている対撚り線２と、対撚り線２の外周を覆うシース１２Ａと、を備え、特性インピーダンスが１００Ω±１０Ωの範囲内であり、室温で６６ＭＨｚの周波数における挿入損失が０．６８ｄＢ／ｍ未満であり、シース１２Ａは、臭素系難燃剤及び三酸化アンチモンを含む。【選択図】図１