Generally, cable model selection means to choose the appropriate cable and model.Cable model specifies the cable structure of conductor, insulation, shield, sheath etc. And rated voltage; however, the specification of cable indicates the core and section area of conductor.To ensure the cable supplied by us can operate reliably for a long time in transmission line, please read the following items fully and carefully before selection the appropriate model and specifications.
1.2 Rated voltage U0/U and power system
Rated voltage of cable should be selected according to the features of power system. Table 1 is the requirements of cable to power network, most 35kV power networks adopt the grounding system of arc-quenching coil of B type; direct grounding system is for 110kV above and HV, extra HV power network.