The key process control of cable joint installation is particularly important for ensuring reliable operation of cable accessories.Based on the influence mechanism of cable insulation surface roughness on cable reliability
the surface profile characteristics of cable joints during installation are analyzed.Then the white light interference method is used to design the measuring device for the surface roughness of cable insulation.Different types of surface roughness parameters are analyzed.The key parameters for the quality evaluation of cable joint installation are put forward
the reliability of cable installation is quantitatively evaluated accordingly