Measurements on the frozen strain in XLPE insulated cables using thermo mechanical analysis

This study is presented on the frozen strain in XLPE measured by means of a thermomechanical analysis (TMA). The magnitude of the strain in XLPE insu lated cables ranges from 2 to 8 % and the cable insulation is stressed in tension for the axial and azimuthal directions and compression for the radial direction. Thermomechanical properties of XLPE are also measured, which are indispensable to evaluate strain distribution.