What are the usage characteristics and electrical performance of control cables?

I. What are the use characteristics and electrical performance of control cable?1. Rated voltage: 450/750 V. Long-term permissible operating temperature of the wire core is 70 ℃.95 ℃, cable laying temperature is not less than 0 ℃. Recommended allowable bending radius of the cable is as follows: unarmored cable, not less than 6 times the outer diameter of the cable; armored or copper tape shielded cable, not less than 12 times the outer diameter of the cable. Shielded flexible cable, not less than 6 times the outer diameter of the cable. Control cable generally refers to the equipment instrumentation power supply, signal control. Representative models: KVV.KYJV and other instrumentation lines, etc. 2. Control cable electrical properties. Control cable DC resistance: 20 ℃, 0.4mm copper wire, less than or equal to 148 ω. 0.5mm copper wire, less than or equal to 95 ω. Dielectric strength: 1min1kv between the conductor does not breakdown conductor and shielding 1min3kv does not break down. Insulation resistance: each core wire and other cores grounded, control cable is greater than 10,000Mω, km, HYAT cable is greater than 3,000Mω, km. working capacitance: average value of 52 ± 2nF. far-end crosstalk defense: the average power value of the specified combination is greater than 69db.km at 150kHZ.

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