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GB 4706.19-2008 English PDF (GB4706.19-2008)

GB 4706.19-2008 English PDF (GB4706.19-2008)

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GB 4706.19-2008: Household and similar electrical appliances -- Safety -- Particular requirements for heating liquids

GB 4706.19-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.040.50
Y 63
GB 4706.19-2008 / IEC 60335-2-15:2005
Replacing GB 4706.19-2004
Household and similar electrical appliances - Safety -
Particular requirements for heating liquids
(IEC 60335-2-15:2005, IDT)
ISSUED ON: DECEMBER 15, 2008
IMPLEMENTED ON: JANUARY 01, 2010
Issued by: General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 4
IEC Foreword ... 7
1 Scope ... 11
2 Normative references ... 13
3 Definitions ... 13
4 General requirement ... 15
5 General conditions for the tests ... 15
6 Classification ... 15
7 Marking and instructions ... 15
8 Protection against access to live parts ... 17
9 Starting of motor-operated appliances ... 17
10 Power input and current ... 17
11 Heating ... 18
12 Void ... 19
13 Leakage current and electric strength at operating temperature ... 19 14 Transient over-voltages ... 20
15 Moisture resistance ... 20
16 Leakage current and electric strength ... 22
17 Overload protection of transformers and associated circuits ... 22
18 Endurance ... 22
19 Abnormal operation ... 22
20 Stability and mechanical hazards ... 24
21 Mechanical strength ... 24
22 Construction ... 24
23 Internal wiring ... 29
24 Components ... 29
25 Supply connection and external flexible cords ... 30
26 Terminals for external conductors ... 31
27 Provision for earthing ... 31
28 Screws and connections ... 31
29 Clearances, creepage distances and solid insulation ... 31
30 Resistance to heat and fire ... 31
31 Resistance to rusting ... 32
32 Radiation, toxicity and similar hazards ... 32
Annexes ... 32
Annex C (normative) Ageing test on motors ... 32
Bibliography ... 33
Foreword
All technical content of this Part is mandatory.
GB 4706 “Household and similar electrical appliances - Safety” consists of several parts. Part 1 is general requirements; the rest parts are special requirements.
This Part shall be used with GB 4706.1-2005 “Household and Similar Electrical Appliances - Safety - Part 1: General Requirements”.
This Part equivalently adopts International Electrotechnical Commission IEC 60335-2-15:2005 “Household and similar electrical appliances - Safety - Part 2- 15: Particular requirements for appliances for heating liquids”. (Edition 5.1, 2005-10). For easy use, this Part made the following editorial modifications to IEC 60335-2-15:
a) modified “Part 1” as “GB 4706.1-2005”;
b) used a decimal point "." to replace the comma "," that is used as a decimal point.
This Part replaces GB 4706.19-2004 “Safety of household and similar electrical appliances - Particular requirements for appliances of heating liquids”. Compared with GB 4706.19-2004, the main differences in this Part are as follows:
- modified NOTE 105 in the scope: storage water heaters (GB 4706.12),
pressure sterilizers; added: humidifiers for household and similar use (GB 4706.48);
- added thermal pots, urns in article 3.1.9.101;
- modified NOTE 101 in 5.2: If the test of 15.101 has to be carried out, three additional samples are required;
- modified 7.1 as: "unless they cannot be filled beyond their rated capacity"; - added the following in 7.12: For espresso coffee-makers incorporating a pressurized reservoir filled by the user, the instructions shall contain information for the safe refilling of the water reservoir and the substance of the following:
WARNING: The filling aperture must not be opened during use.
- added the following in 15.2: For steam sterilizers, replace the penultimate paragraph of this subclause of GB 4706.1-2005 by the following:
Steam sterilizers are placed on a horizontal surface and 30 mL of water containing approximately 1% NaCl is poured onto the top rim in the most unfavorable place. The solution is poured steadily through a tube having an inner diameter of 8 mm over a period of 2 s, the lower end of the tube being 200 mm above the appliance.
NOTE: A schematic representation of the test arrangement is shown in
Figure 101.
Addition: Kettles are then filled to rated capacity with water. They are placed on a plane inclined at an angle of 20° to the horizontal with their spout facing up the slope of the inclined plane. Water shall not be
discharged from the kettle.
- in 15.101, modified: "They are then completely immersed in water
containing approximately 1% NaCl and having a temperature between
10°C and 25°C";
- in 19.7, modification [Translator note: in the text, it is “19.7 Addition”]: "Espresso coffee-makers incorporating a pump are operated for a period
of 5 min";
- in 19.102, added: " NOTE: Subclause 19.13 is applicable";
- in 22.110, added: Espresso coffee-makers, incorporating a pressurized reservoir filled by the user, shall be constructed so that there is no spillage of water or sudden jets of steam or hot water likely to expose the user to a hazard when the appliance is used in accordance with the instructions. When removing the filling cap of the pressurized reservoir, before the cap is removed completely, the pressure shall be relieved in a controlled
manner in order to avoid the emission of jets of steam or hot water that are likely to expose the user to a hazard.
Compliance is checked by inspection during the test of Clause 11 and by removing the filling cap at the end of the test.
- in 29.2, added: The microenvironment is pollution degree 3 if the insulation can be polluted by condensation from steam produced during normal use
of the appliance.
This Part was proposed by China National Light Industry Council.
This Part shall be under the jurisdiction of National Technical Committee on Household Appliances of Standardization Administration of China (SAC/TC 46). Household and similar electrical appliances - Safety -
Particular requirements for heating liquids
1 Scope
This clause of GB/T 4706.1-2005 is replaced by the following.
This Part deals with the safety of electrical appliances for heating liquids for household and similar purposes, their rated voltage being not more than 250 V. NOTE 101: Some appliances may be used for heating food.
NOTE 102: Examples of appliances that are within the scope of this Part are - coffee-makers;
- cooking pans;
- egg boilers;
- feeding-bottle heaters;
- kettles and other appliances for boiling water, having a rated capacity not exceeding 10 L;
- milk heaters;
- pressure cookers having a rated cooking pressure not exceeding 140 kPa and a rated capacity not exceeding 10 L;
- slow cookers;
- steam cookers;
- wash boilers;
- yoghurt makers.
Appliances not intended for normal household use but which 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 Part. NOTE 103: Examples of such appliances are

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