The main products of control cables today are: polyvinyl chloride insulated control cables, natural styrene butadiene rubber insulated control cables, and polyethylene insulated control cables, in addition to products that connect polyethylene insulation and ethylene propylene rubber insulation. The early production of oil impregnated paper insulated lead sheathed control cables has been phased out.
Measures to ensure the normal operation of control cables and prevent interference.
In order to ensure the stability of control cables in the event of insulation penetration, mechanical damage, or fire, the national industry standard GB50217-91 "Code for Design of Cable Lines in Electric Power Construction Projects" explicitly stipulates that separate control cables should be used for two systems that require enhanced stability, including bidirectional protection current, working voltage, DC stabilized power supply, and trip control circuit.
Control cable manufacturer - After the control cable is put into operation, electrical equipment disturbance occurs between different power lines of the same cable and between adjacent parallel laid cables. The primary factor causing electrical equipment disturbance is the formation of electrostatic interference under the influence of external operating voltage and the coupling of capacitors between cores; Disturbance caused by the magnetic effect of electric current. Overall, when there is high voltage and large current electromagnetic interference around, the disturbance of electrical equipment becomes more pronounced. Due to the smaller distance between power lines of the same cable, the degree of interference is much greater than that of adjacent cables.