Railway signal cable application range
Railway signal cable is suitable for ac rated voltage 500 v or 1000 v dc railway signal control, audio transmission and the following or some automatic devices with various cable fixed installation.
Railway signal cable performance feature
1.DC Resistance: 20 ℃, 0.5mm copper wire, less than or equal 95Ω/km.
2. Insulation Electric Strength: Conductor 1 min 1kv no breakdown between conductors and shield not breakdown 1min 3kv.
3.Insulation resistance: each wire with the rest of grounding wire core, HYA cable than 10000MΩ.HYAT cable than 3000MΩ.
4.Capacitance: mean 52 ± 2nF/km
5.Far end crosstalk defense: 150 KHZ specified when the combination of the average power is greater than 69 db/km.
Execution standard: YD/T322-1996
Structural features: HYA local telecommunication cable chromatography insulation, integrated aluminum sheath (ie, longitudinal shielded ribbon cable and the sheath bonded into one, forming a seal protection layer), with excellent electrical performance, easy construction of features.
