64位下载地址
http://trial.autodesk.com/SWDLDDLM/2013/ACAD_E/ESD/AutoCAD_Electrical_2013_SimplifiedChinese_MLD_Win_64bit.exe
32位下载地址
http://trial.autodesk.com/SWDLDDLM/2013/ACAD_E/ESD/AutoCAD_Electrical_2013_SimplifiedChinese_MLD_Win_32bit.exe
在百度上搜索一下就可以
很多网站都有这样的下载提供