Quality Wholesale 4x1mm² 18AWG Tc Pe Pvc Aluminum Foil Electrical Cable Rs485 Cable for drone

Electrical performance
Characteristic impedance: 120Ω
Conductor DC resistance: At 20℃, no more than 24.5Ω per kilometer
Capacitance: At 1kHz, the nominal capacitance between conductors is about 30nF/km, and between conductors and shields is about 50nF/km
Propagation speed: The nominal propagation speed is about 66%
Delay time: The nominal delay time is about 4.6ns/m
Attenuation: The nominal attenuation at 1MHz is about 12dB/km
Working voltage: The maximum working voltage is generally 300V
Working current: The recommended maximum working current is 5A (@25℃)
Structural characteristics
Conductor: 4 pairs of 8 cores (4x2x18AWG) stranded tinned copper wire, such as 18AWG (7×22AWG) tinned copper wire stranded conductor, to ensure good conductivity and flexibility.
Insulation: Polyethylene (PE) insulation material is usually used, and the thickness of the insulation layer is uniform, which can effectively prevent short circuits and signal interference between conductors.
Shielding: Generally, double shielding is used, with a shielding rate of 90% for aluminum foil/polyester composite tape + tinned copper braided mesh, which can effectively prevent the influence of external electromagnetic interference on the signal and reduce the radiation of the signal.
Drain line: 18AWG (7×22AWG) tinned copper wire stranded conductor is used as grounding protection to enhance the anti-interference ability of the cable.
Outer sheath: Mostly industrial gray PVC outer sheath, which has the characteristics of wear resistance, weather resistance, corrosion resistance, etc., and can adapt to different use environments. The color of the outer sheath can also be customized according to customer requirements.
Mechanical properties
Minimum bending radius: Generally 8 times the cable diameter during installation.
Working temperature: Usually between -30℃～+70℃.
Others
Compliance with standards: Comply with UL AWM 2919 and other relevant standards.
Application scenarios: Suitable for industrial automation control network communication, building automation network communication, intelligent transportation system, power automation and other fields, and can achieve stable and reliable data transmission between devices.