Performance characteristics
1. DC resistance: 20 ℃, 0.4mm copper wire, less than or equal to 148 Ω/ Km, 0.5mm copper wire, 95 or less Ω/ km。
2. insulation electrical strength: the conductor shall not break down for 1min 1kV and the shielding for 1min 3KV
3. insulation resistance: each core wire is grounded with other cores, and the control cable is more than 10000m Ω. Km, HYAT cable is more than 3000m Ω. km。
4. working capacitance: average value 52 ± 2nF/km
5. far end crosstalk defense: the average power of the specified combination is greater than 69db/km at 150kHz.