1 Scope
This Chapter in GB 4706.1-2005 is superseded by the following.
This part deals with the safety of electric humidifiers for household and similar use, their rated voltage being not more than 250V for single-phase appliances and 480V for other appliances.
Note 1: Examples of appliances that are within the applicable scope are:
- Appliances that atomize water;
- Appliances that evaporate water by heating;
- Appliances that blow air through a moist element.
Humidifiers that are not intended for normal household use, but that nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in 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
- The use of appliances by young children or infirm persons without supervision;
- Playing with the appliance by young children.
Note 2: 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;
- In many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labor and similar authorities.
Note 3: This part does not apply to
- Appliances for heating liquids (GB 4706.19);
- Humidifiers intended for use with heating, ventilation or air-conditioning systems (IEC 60335-2-88);
- Appliances for medical purposes (GB 9706.1);
- Appliances intended exclusively for industrial purposes;
- Appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapor or gas).
2 Normative References
This Chapter in GB 4706.1-2005 is applicable.
3 Definitions
This Chapter in GB 4706.1-2005 is applicable except as follows.
1 Scope
2 Normative References
3 Definitions
4 General Requirements
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 Overvoltage
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
Appendix
Bibliography
