1、745-2-11EC-3-CONTENTSPageFOREWORD5PREFACE5Clause1.Scope72.Definitions3General requirement4.General notes on tests.,5Rating7999Classification7.Marking96Protection against electric shock9.Starting10.Input and current11.12,HeatingLeakage current111113.Radio and television interference suppression14Mois
2、ture resistance:115.Insulation resistance and electric strength1617.Abnormal-operation18.Mechanical hazards19Mechanical strength1520.Construction21.Internal wiring215Components123Supply connection and external flexible cables and cords24.Terminals for external conductors25Provision for earthing1526.
3、Screws and connections.:1527.Creepage distances,clearances and distances throughinsulation1528.Resistance to heat,fire and tracking1729.Resistance to rusting17FIGURE19APPENDIX A Thermal cut-outs and overload releases21APPENDIX B-Electronic circuits.21APPENDIX C Construction of safety isolating transformers.21APPENDIX D Measurement of creepage distances and clearances.21
