WIRE AND CABLE

• Main Authors: OKIKAWA HIROSHI, FURUICHI HISAO, KIBE TAMOTSU, KIKUCHI RYUTARO
• Format: Patent
• Language: English; Japanese
• Published: 03.09.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a wire having improved flexibility and low temperature bending properties, and a cable.SOLUTION: A wire has a conductor with a cross-sectional area of 225 mm2 or more and 275 mm2 or less, an insulator provided to cover the periphery of the conductor, and a wire sheath provided to cover the periphery of the insulator. The conductor has a slave stranded wire obtained by stranding 42 or more elemental wires with a diameter of 0.46 mm or less, and a master stranded wire obtained by stranding 37 or more of the stranded wires. The conductor has an outer diameter of 21.2 mm or more and 26.0 mm or less. The insulator and the wire sheath comprise a resin composition that contains a base resin containing chlorinated polyethylene with a chlorine content of 30% or more and 45% or less of 20 pts.wt. or more and 40 pts.wt. or less and an ethylene-vinyl acetate copolymer of 60 pts.wt. or more and 80 pts.wt. or less, with the total content of them being 100 pts.wt., and a flame retardant. The flame retardant contains antimony trioxide, and the content of the flame retardant is 1 pts.wt. or more and 5 pts.wt. or less relative to the base resin 100 pts.wt.SELECTED DRAWING: Figure 1 【課題】撓み性および低温曲げ特性を向上させた電線およびケーブルを提供する。【解決手段】断面積が２２５ｍｍ2以上２７５ｍｍ2以下である導体と、前記導体の外周を覆うように設けられた絶縁体と、前記絶縁体の外周を覆うように設けられた電線シースと、を有する電線であって、前記導体は、直径が０．４６ｍｍ以下の素線を４２本以上撚り合せた子撚り線と、前記子撚り線を３７本以上撚り合せた親撚り線と、を有し、前記導体の外径は、２１．２ｍｍ以上２６．０ｍｍ以下であり、前記絶縁体および前記電線シースは、塩素量が３０％以上４５％以下である２０重量部以上４０重量部以下の塩素化ポリエチレンと、６０重量部以上８０重量部以下のエチレン・酢酸ビニル共重合体と、を合計で１００重量部含むベース樹脂及び難燃剤を含む樹脂組成物からなり、前記難燃剤は三酸化アンチモンを含み、前記ベース樹脂１００重量部に対して１重量部以上５重量部以下含有する電線。【選択図】図１