A Study on the Temperature Analysis for Cable in Overload and Short of Low Voltage Wiring using Electro-Thermal FEA

전계-열계 유한요소해석을 이용한 저압 배선선로의 과부하 및 단락사고 발생시 전선의 온도해석에 관한 연구

Overloading of electrical equipment results in excessive currents. As the heat developed in the cables is proportional to square of the current, they get overheated. The insulation on cables is generally made of materials which are damaged easily by excessive temperature. They may therefore lose their insulating properties and lead to short circuits. Since many insulating materials are combustible, they may even catch fire if the temperature rises to their ignition temperature. In this paper, we have simulated the thermal analysis for cable according to the value of current in a overload and a short with the cable of the L's company product(600 V, VV : Four Core) using the electro-thermal finite element method(Flux2D).