Novel insulated twisted-pair cable and preparation method thereof

• Main Authors: ZHANG SHENXUE, CHEN XIN, XU JING, MAO YIGUO, WU GUOLIANG, CHAI XIANGHUA, SHENG JINWEI, DING HONGMEI
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The invention discloses a novel insulated twisted-pair cable and a preparation method thereof. The cable comprises an outer sheath layer, a steel wire armored layer, an inner sheath layer, a wrapping shielding reinforcing layer, a braided shielding layer, a wrapping layer and an insulated cable core which are sequentially arranged from outside to inside. The insulated cable core comprises two insulated wire pairs, each insulating wire pair comprises a wrapping tape and two twisted insulating cores wrapped in the wrapping tape, each insulating core is provided with a line induction strip, and a plurality of circumferentially arranged supporting springs are arranged between the steel wire armored layer and the inner sheath layer. According to the invention, the pair twisting, wrapping and cabling are completed at one time, independent pair twisting and wrapping processes are reduced or omitted, the whole cabling outer diameter is controlled within a reasonable range, the production efficiency is improved, the p