Analysis of Cable Temperature Field Based on Finite Element Method
The analytical method of ampacity and temperature based on the IEC (International Electrotechnical Commission)-60287 standard has been widely used for its simplicity. However, the density of cable group and the complicated laying conditions reduce the accuracy of the analytical method which simplifies or ignores the actual situation. In this paper, the loss of the conductor temperature is taken as the internal heat source of cables. The finite element model is established to analyze the distribution of cable temperature field under two grounding modes by COMSOL to further improve the accuracy of cable ampacity.