Study on insulation structure of fast slide in termination and joint for 15 kV power cable applying to live work on site

Analysis and resolution of electric field distribution in fast slide-in termination and joint using finite element numeral analysis method described in this paper. Rules of interface compress stress, compress strain, and rubber material peristaltic change as well as material fatigue character after inserting and drawing 1000 times are discussed. The research results proved that electric field controlled cone design in insulation structure of the terminations and joints is important. The elasticity and permanence distortion of the EPR used as the main insulating material may be 50% and 2%. Inserting and drawing surplus tolerance of the termination and joint should not exceed 1.7