Calculation of Power Cable Current-Carrying Capacity Based on Finite Element Method
This paper introduces the applicability of IEC-60287 standard for power cable current-carrying capacity calculation,and analyzes temperature field of directly-buried power cable in terms of heat transfer theory.Then according to the heat conduction equation and the corresponding boundary conditions,taking CYZQ-845 cable as an example,it adopts the finite element software COMSOL MULTIPHYSICS to establish the temperature field model for the power cables directly buried in 1 shape,calculates its current-carrying capacity under certain environmental conditions,analyzes the influencing factors for cable carrying capacity,including cable laying depth,cable arrangement spacing,air temperature,air and soil heat transfer coefficient and soil thermal conductivity coefficient,with a view to providing reference for engineering practice.
directly-buried cabletempreture fieldfinite element method (FEM)current-carrying capacity
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NSTL
万方数据
维普
