5.It is difficult to achieve the analytical solution of temperature field with internal Jouleheat generation under steady state electric field, especially when the distribution of the Jouleheat is complicated.
6.The heat conduction problems with Joule heats are greatly simplified and no matter how the Jouleheat is distributed and no matter which coordinates are adopted, this method is still available.
7.For thermal character of compact busway, the temperature field distribution can be calculated through making jouleheat indirectly coupled into thermal analysis as volume load.