1 Scope
This clause of GB 4706.1-2005 is replaced by the following.
This part of GB 4706 deals with the safety of electric battery chargers for household and similar use having an output at safety extra-low voltage, their rated voltage being not more than 250 V.
Battery chargers not intended for normal household use, but which nevertheless may be a source of danger to the public, such as battery chargers intended for use in garages, shops, light industry and on farms, are within the scope of this standard.
As far as is practicable, this part deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account:
— Persons (including children) whose
? Physical, sensory or mental capabilities; or
? Lack of experience and knowledge
Prevents them from using the appliance safely without supervision or instruction;
— Children playing with the appliance.
Note 101: Attention is drawn to the fact that:
— For appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;
Foreword I
1 Scope
2 Normative References
3 Definitions
4 General Requirement
5 General Conditions for the Tests
6 Classification
7 Marking and Instructions
8 Protection Against Access to Live Parts
9 Starting of Motor-operated Appliances
10 Power Input and Current
11 Heating
12 Void
13 Leakage Current and Electric Strength at Operating Temperature
14 Transient Overvoltages
15 Moisture Resistance
16 Leakage Current and Electric Strength
17 Overload Protection of Transformers and Associated Circuits
18 Endurance
19 Abnormal Operation
20 Stability and Mechanical Hazards
21 Mechanical Strength
22 Construction
23 Internal Wiring
24 Components
25 Supply Connection and External Flexible Cords
26 Terminals for External Conductors
27 Provision for Earthing
28 Screws and Connections
29 Clearances, Creepage Distances and Solid insulation
30 Resistance to Heat and Fire
31 Resistance to Rusting
32 Radiation, Toxicity and Similar hazards
Appendixes
Appendix A (Informative) Routine Tests
Appendix AA (Normative) Battery Chargers for Use by Children
Bibliography
Figure 101 Circuit for Testing Battery Chargers
