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本公司一直从事螺旋漏泄同轴电缆的生产,供隧道等场所的公路通信系统使用。目前又研制成耐热的螺旋漏泄同轴电缆,其型号有65型、60型和55型三种,其结构为:中心为铁氧体、软铜线螺旋绕包内导体、聚乙烯和交联聚乙烯绝缘、无机耐热带、软铜线螺旋绕包外导体、阻燃乙烯护套,7根1.4mm镀锌钢绞悬挂线,外径约16mm,重约420kg/km,绝缘电阻>1000MΩ·km,耐压AC1000V/1min,特性阻抗为50Ω。传输损耗:65型8dB/km;60型9dB/km;55型10dB/km。耦合损耗:65型65dB;60型60dB;55型55dB。
The company has been engaged in spiral leakage coaxial cable production for tunnels and other places of highway communication systems. At present, it has also developed into a heat-resistant spiral leakage coaxial cable, its type is 65, 60 and 55 three, its structure is: the center of the ferrite, soft copper spiral wound around the inner conductor, polyethylene and pay Polyethylene insulation, inorganic heat-resistant tape, soft copper spiral wound around the outer conductor, flame-retardant vinyl sheath, 7 1.4mm galvanized steel hanging wire, diameter about 16mm, weighing about 420kg / km, insulation resistance> 1000MΩ · km, withstanding voltage AC1000V / 1min, the characteristic impedance is 50Ω. Transmission loss: 65 8dB / km; 60 9dB / km; 55 10dB / km. Coupling loss: 65 65dB; 60 60dB; 55 55dB.