Comparative analysis and safety standard guideline of AC and DC supplied home appliances

This paper analyzes AC and DC supplied home appliances comparatively for check of existing safety standards as DC power supply system serviced at home. Firstly, DC appliance model that is devised to suit dc distribution system by this paper is compared with AC appliance for analysis of the difference. Secondly, international safety standards of AC appliances are analyzed. In conclusion, for DC safety standards setup, this paper guides intelligence of what kinds of safety standards should be complemented for eliminating risk caused by distribution system change in many standards.