Mechanical Modeling and Analysis of 10?kV Low-voltage Distribution Network Cables and Research on Turning and Peeling Technology
According to the technical requirements of GB14049-1993"Rated voltage 10 kV,35 kV overhead insulated cable"processing,the cable lead manufacturing process in the distribution network construction technical specification is analyzed,and the removal method and process of XLPE rotary cutting for the cable insulation sheath of low-voltage distribution network are proposed.The mechanical cutting deformation mechanism of cable XLPE insulation outer skin was studied.The dynamic analysis model of cable rotating cutting and Johnson-Cook constitutive model of XLPE material were established.The effects of different cutting parameters,including cutting speed vc,feed amount ac and tool front Angle γ0,on cutting surface quality and chip efficiency were analyzed by numerical simulation.Finally,through the turning and peeling test,it is verified that the cutting rules are consistent with the simulation results,and the suggested cutting process parameters of JKYJ-10 kV series XLPE cable are obtained.
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