Abstract:According to my bureau County company produces 2 origin switch cabinet charged display caused by fault of main transformer tripping incident causes, according to GB 25081-2010 high-voltage charged display device VPIS and the national grid born 2012 No. 352 China State Grid Corp eighteen grid major anti accident measures Revised Edition , I office equipment operation environment characteristics, organizational studies, put forward to the switch cabinet charged display fault comprehensive prevention countermeasures against accidents.