Polyethylene railway signal cable PTYA23 national standard pure copper wire armor

Polyethylene railway signal cable PTYA23 national standard pure copper wire armor. This product is suitable for transmitting railway signals, audio signals or control circuits of automatic signal devices with rated voltage of AC 500V or DC 1000V and below. The comprehensive sheath and aluminum sheath railway signal cable have certain shielding performance and are suitable for laying in electrified sections or other areas with strong electrical interference.