This standard specifies the general safety requirements of small-power motors.
This standard is applicable to the small-power motors (hereinafter referred to as “motors”) specified in "General Technical Requirements for Small Power Motors" (GB/T 5171), and the other similar motors also may be implemented by making reference thereto.
This standard is not applicable to the control motors (such as servomotor, autosynchromotor, rotary transformer, tachogenerator and induction phase shifter, etc).
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these labels are applied or not. For undated normative references, the lastest edition is applicable to this standard.
Contents Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Markings and Explanation 5 Motor Base and Enclosure 6 Mechanical Assembly and Parts 7 Corrosion Protection 8 Electrical Connection 9 Connecting Pieces 10 Internal Wiring 11 Electrical Insulation Support 12 Evaluation on Insulation Structure 13 Brush Holder 14 Nonmetal Parts 15 Creepage Distance and Clearance 16 Earthing 17 Temperature Rise Test 18 Abnormal Operation Test 19 Durability Test 20 Insulation Resistance and Electrical Strength 21 Leakage Current at Working Temperature 22 Damp Heat Test 23 Start 24 Components 25 Electromagnetic Compatibility 26 Other Requirements 27 Inspection Rules Appendix A (Normative) Centrifugal Switch Appendix B (Normative) Motor Running Capacitor Appendix C (Normative) Motor Starting Capacitor Appendix D (Normative) Thermal Motor Protector Appendix E (Normative) Thermal-links
