1 Scope
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
