GB 4706.22-2002 Safety of household and similar electrical appliances - Particular requirements for free-standing electric ranges, cooktops, ovens and similar appliances
Some standard content:
ICS 97. 040. 20
National Standard of the People's Republic of China
GB4706.22-2002/IEC60335-2-6:1997 replaces GB4706.22-1988
Safety of household and similar electric appliances-Particular requirements for stationary cooking ranges hobs, ovens and similar appliances(IEC 60335-2-6:1997,IDT)
Promulgated on November 29, 2002
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on August 1, 2003
All technical contents of this part are mandatory. Foreword
GB 4706.22-2002/IEC 60335-2-6: 1997 This part is equivalent to the International Electrotechnical Commission IEC60335-2-6: 1997 Safety of household and similar electrical appliances Part 2: Particular requirements for free-standing electric cooking ranges, cooktops, ovens and similar appliances including its amendment IEC60335-2-6-Amd1: 2000. This part should be used in conjunction with GB4706.1-1998 Safety of household and similar electrical appliances Part 1: General requirements. The part marked with "applicable" in this part indicates that the corresponding clauses in GB4706.1-1998 are applicable to this part; the part marked with "replace" or "modify" in this part shall be subject to this part; the part marked with "addition" in this part indicates that the clauses of this part are added to the corresponding clauses in GB4706.1-1998. At the time of publication of the standard, the versions of the standards cited in this part are all valid versions. IEC standards are still under development and improvement, and all of its standards will be revised. All parties using this part should explore the possibility of using new IEC standards to comply with my country's policy of actively adopting international standards and the principle of equivalent adoption of EC standards. From the date of implementation, this part will replace GB4706.22-1988 "Special requirements for safety of household electric stoves, cookers, ovens and similar appliances for household and similar purposes". At the same time, the applicable content of fixed induction cookers in GB4706.29-1992 "Special requirements for safety of induction cookers for household and similar purposes" will be replaced by the content of this part on induction cookers. The original GB4706.22-1988 is equivalent to IEC60335-2-6:1986. Since the IEC 61st Technical Committee made a comprehensive revision to this standard in 1997, the content has changed greatly. In order to better align with international standards and meet the needs of international trade technology and economic exchanges, my country has also made corresponding adjustments to this standard and replaced GB4706.22-1988. Compared with GB4706.22-1988, this part has a major change in technical content. The main changes are as follows:) The name of the standard is changed from "Special Requirements for Safety of Household Electric Ranges, Cooktops, Ovens and Similar Appliances for Household and Similar Purposes" to "Special Requirements for Safety of Stationary Electric Ranges, Cooktops, Ovens and Similar Appliances for Household and Similar Purposes". This part is equivalent to IEC60335-2-6.1997, while GB4706.22-1988 is equivalent to IEC60335-2-b)
c) Chapter 1 of this part stipulates that the rated voltage of single-phase appliances shall not exceed 250V, and for other appliances, the rated voltage shall not exceed 480V. However, there is no such provision in GB4706.22-1988. d) The scope of products applicable to this part has changed significantly, such as induction cookers are included in the scope of application of this part. e) This part adds 10 terms such as cooking area and induction cooker head, and redefines 6 terms such as electric stove, stove top, and baking tray. Three terms such as detachable cooker head, cooker head bracket, and bracket assembly are added. This part re-defines the requirements for the test standard push pot and the liquid volume table in detail. g) The content of Chapter 7 of this part is re-defined. h) This part deletes the fire protection level classification. i) This part specifies the heating working cycle of different appliances in detail. j) This part adds the minimum creepage distance and electrical clearance requirements under high temperature. Appendix A of this part is a normative appendix. This part is proposed by China Light Industry Federation. This part is under the jurisdiction of the National Technical Committee for Standardization of Household Electrical Appliances. The main drafting unit of this part: China Household Electrical Appliance Research Institute. The main drafters of this part: Min Jing, Zhang Yachen, GB 4706.22-2002/IEC 60335-2-6: 1997IEC Foreword
1) IEC (International Electrotechnical Commission) is an international standardization organization composed of all national electrotechnical committees (IEC National Committees). Its purpose is to promote international cooperation on standardization issues related to electrical and electronic fields. To this end, IEC carries out international standard promotion activities and publishes international standards. The formulation of these standards is entrusted to various technical committees. Any IEC National Committee that is interested in the technical issue can participate in the formulation work. International, governmental and non-governmental organizations that have contact with IEC can also participate in this work. IEC and the International Organization for Standardization (ISO) work closely on the basis of the agreement between the two organizations. 2) IEC formal decisions or agreements on technical matters drawn up by technical committees in which all the national committees with a particular interest in the subject participate, represent, as far as possible, international consensus on the subject. These formal decisions or agreements, published in the form of standards, technical reports or guides, are accepted by the national committees in this sense.
In order to achieve international consensus, IEC national committees agree to use IEC international standards to the greatest extent possible in their national and regional standards: the differences between IEC standards and the corresponding national and regional standards shall be clearly indicated in the latter. 5
IEC has not established a procedure for the application of the approval mark. IEC assumes no responsibility for the direct statement that basic equipment conforms to an IEC standard.
Some of the contents of this international standard may involve some patent rights, and attention should be paid to this. The IEC organization is not responsible for identifying any such patent rights.
This standard was prepared by IEC Technical Committee 61, Safety of Household and Similar Electrical Appliances. This standard constitutes the fourth edition of IEC 60335-2-6, replacing the third edition and its references (1990 and 1992). This standard is based on the following documents:
61/1073/FDIS
Voting report
61/1204/RVD
Full material on the date of adoption of this standard can be found in the voting report shown above. This standard should be used in conjunction with the latest edition of [IEC 60335-1 and its amendments. This part is based on the third edition (1991) of IEC 60335-1.
This standard supplements or modifies the corresponding clauses of IFC 60335-1, thereby converting it into this standard: Particular requirements for fixed electric cooking ranges, cooktops, ovens and similar appliances.
The corresponding clauses of IEC 60335-1 not mentioned in this standard may be used as long as it is reasonable. In this standard, the places marked with "addition", "modification" or "replacement" are the corresponding changes to the relevant clauses of IEC 60335-1. Note 1: This standard uses the following typographical fonts: - Text requirements, roman font
Test specifications, italic font
- Note: Small roman font
The bold font in the text is defined in Chapter 2. When the definition of IEC 60335-1 involves adjectives, the adjective and the corresponding noun are also in bold font.
Note 2: The numbering of clauses and figures added to TEC 60335-1 should start from 101. The following differences exist in some countries:
~ 2.2.6 No difference ratio (USA).
- 2.2.9 Use other test conditions (USA). - 6.1 Allow the use of Class 0I appliances (Japan). GB 4706. 22—2002/IEC 60335-2-6: 19977.1 The instructions for pyrolytic self-cleaning ovens are marked on the outside of the oven (USA). -7.1 Miniature fuses are not used for seat protection (Norway), -7.12 The minimum water pressure mark is 10 bar (Norway). -7.12.4 The control panel soil used in built-in appliances must indicate the manufacturer and model (USA), the test method is different and requires a stable state (Canada and the United States). -11.7
-11.8 The temperature rise limit for all wooden surfaces is 65 K (Australia, Sweden and the United States). -11.8 During the self-cleaning process, lower temperature rise limits apply to handles, knobs and other accessible surfaces (USA). -11,101
The test conditions, measuring tools and temperature rise limits are different (Australia, Canada and the United States). The use of a separate accessory to prevent accessibility is not permitted (USA). Different requirements apply to socket-outlets mounted on appliances (USA). Leakage current measurements are not made (USA). Chapter 13
-13.3 No electrical strength test is made (USA). -15.2
Only controls mounted on the cooktop surface are tested (USA). Chapter 16
No leakage current measurement is made (USA). -19.4 A limit of 316 °C is used (USA). 19.101
-Chapter 22
Chapter 22
Chapter 22
Use pans of different sizes (USA).
Use heavier loads (USA).
Use different test loads and test methods (USA). Additional requirements are laid down for oven supports (Australia, New Zealand and USA). Oven doors mounted at a height of less than 80 cm above the floor shall be capable of being opened by simple operation (Sandwich). Cooktops shall not be within the reach of children (Sweden).
For appliances with more than one heating element, each element shall be provided with an all-pole disconnection (sense-to-remove). -22.106
Tests differ (USA).
This requirement does not apply (USA.
The core temperature of the oven is specified to be 315°C (USA). A larger amount of different dirt is used (USA). A larger amount of different dirt is used (USA). The test is not carried out (USA).
The test is not carried out (USA).
The number of cycles of operation varies (USA). -24.101
The socket-outlet must be provided with a residual current device that can be used in conjunction with the overcurrent protection device (Australia). The use of miniature fuses is not allowed (Norway). The socket-outlet is disconnected when the cooking element is in use (USA). The current rating varies (USA). 25.3 Non-mounted cooking ranges should not be permanently connected to fixed wiring (New Zealand, SWITZERLAND). - Chapter 27 The earth terminal is allowed to be connected to the neutral conductor (USA). CB 4706.22—2002/1EC 60335-2-6:1997 Amendment Foreword
This amendment has been prepared by IEC Technical Committee 61 (Safety of household and similar electrical appliances). This amendment constitutes the fourth edition of IEC 60335-2-5, replacing the third edition and its amendments (1990 and 1992)FDIS
61/1750/FDIS
Voting Report
61/1775/RVD
Full material on the date of adoption of this amendment can be found in the voting report shown above. A bilingual version of this amendment will be issued in the near future. 1 Scope
GB 4706.22—2002/IEC 60335-2-6:1997 Safety of household and similar electrical appliances
Particular requirements for free-standing electric cooking ranges, cooktops, ovens
and similar applianceswwW.bzxz.Net
GB This chapter in 4706.1-1998 is replaced by the following content. This part applies to the safety of household standing electric ranges, stoves, ovens and similar appliances. For single-phase appliances connected between the phase line and the neutral line, the rated voltage does not exceed 250V. For other appliances, the rated voltage does not exceed 480V. Examples of appliances within the scope of this standard are: standing grills, standing grill pans, pyrolytic self-cleaning ovens, induction cooktops, steam ovens; electrical parts of appliances not supplied by electrical power. As far as practicable, this standard deals with common hazards presented by appliances to persons present in and around the home. This standard generally considers: - the use of appliances by unattended young children and disabled persons. - situations where young children play with the appliance. NOTE 2: Attention should be paid to the following optional situations: - for appliances intended for use in vehicles, vessels or aircraft, additional requirements may be required - for appliances intended for use in tropical countries, special requirements may be required. In many countries, Additional requirements shall be prescribed by the national health care department, the department responsible for labor protection, the national water supply department and similar departments. Note 3: This part does not apply to:
appliances intended for use in special environments where corrosive or explosive gases (such as dust, steam or gas) are often present, portable cooking appliances (GB4706.14-1999); microwave appliances (GB4706.21-2002); commercial stoves and cookers (IEC60335-2-36); commercial baking trays and baking tray racks (GB4706.37-1997); commercial high-pressure convection ovens, combined steam boilers and wall-mounted convection ovens (IEC60335-2-42) Note 4: Taking into account the requirements of combined microwave ovens, CB4706.21-2002 can be used in conjunction with this part. Definitions
This chapter in GB 4706.1—1998 is applicable except for the following contents.2.2.6This clause is replaced by the following contents:
Note: For appliances with more than three heating units per phase, the rated power shall use a differential factor to calculate the current in order to determine the size of the wiring increaser and the nominal cross-sectional area of the flexible cord. This differential factor F can be calculated by the following inverse formula. F = 0.35 + 0.65
GB 4706.22—2002/IEC 60335-2-6: 1997Where: N—number of heating units per phase. 2.2.9This clause is replaced by the following contents:
normal operation
Normal operation
The appliance operates in accordance with the provisions of 2.2.9.1 to 2.2.9.6. 2.2.9.1 Except for the electromagnetic hotplate, a container containing cold water is placed when the other hotplates are operated. The container is made of unpolished commercial aluminum, with a flat bottom and a lid. The temperature control is adjusted to the highest position until the water boils, and then adjusted until the water can boil gently. During the boiling of the water, water is added to maintain the water level.
Note 1: The lid is covered to prevent the influence of steam on the test. In case of doubt, the container is shown in Figure 101.
At room temperature, the electromagnetic hotplate is placed in the container specified in Figure 102, which is filled with about half the volume of cooking oil. The temperature control device is adjusted to the highest position until the oil temperature reaches 180℃±4℃, and then adjusted to maintain this temperature. For all hotplates, the bottom diameter of the container is approximately equal to the diameter of the cooking area, and the volume of the filter body is as specified in Table 101. The container is placed in the center of the cooking area.
Note 2: If a stove has several cooking areas, the most unfavorable area should be selected for this test. Note 3: For non-circular cooking areas, the edge of the stove and other containers should be considered, and the smallest non-circular container that covers the cooking area as much as possible should be selected. The volume of the container is determined by the smallest diameter of the cooking area. Table 101 Volume of liquid in container
Diameter of cooking area/m
>110 and ≤145
>145 and ≤180
>180 and ≤220
≥220 and ≤300
Volume of water or oil/L
2.2.9.2 With the oven door closed and no load, adjust the temperature controller to keep the temperature in the center of the oven at: 220℃±4℃ for a forced convection oven
—240℃±4℃ for other ovens
Note: If the temperature cannot be reached, adjust the temperature control device to the highest position. For ovens without temperature control devices, keep the temperature in the center of the oven at 240℃±15℃ continuously. Steam ovens should be operated according to their instructions. The control device should be adjusted to the highest position until the cooking temperature is reached, and then adjusted to the lowest position to maintain the temperature.
For steam generators intended to be filled manually, use water to keep the steam generator working, according to the instructions. For steam generators intended to be filled automatically, connected to the water supply system, set the pressure according to the installation instructions. Water supply temperature
—One pair connected to the cold water system
15℃±5℃
One pair connected to the hot water system
60℃±5℃ or the temperature given in the instructions, whichever is higher. The steam oven can also be adjusted to work without steam by the temperature controller when the steam generator is working. 2.2.9.3 Grills with grill pans and food support racks may be operated in the most unfavourable position in normal use, with no load. The position of doors and other accessories shall be determined in accordance with the instructions for use. In the absence of relevant instructions, doors and other accessories shall be placed in their most unfavourable possible position, with the temperature control device adjusted to the highest setting. However, if the instructions for use of grills with ovens specify a lower setting, this setting shall be set for operation. Reflectors intended to be placed above the electric heating elements shall remain in their original position. 2.2.9.4 Rotating spit placed in an oven or in a grill shall be operated with the rotating spit load specified in Figure 103. When operating the appliance, the instructions for use shall be taken into account with regard to the operation of the electric heating elements, the setting of the temperature control device, and the position of the door and grill pan.
GB 4706, 22—2002/IEC 60335-2-6: 1997 If there is no relevant instruction, the controller is adjusted to the highest position, and the door is fully opened or placed in the most unfavorable position in the middle. All grills are placed in the lowest position. 2.2.9.5 Warming cabinets and similar components are placed in the closed position when working, and their controllers are adjusted to the highest position. 2.2.9.6 When the baking tray is working, the central temperature of the heating surface is maintained at 275℃±15℃ by adjusting the temperature to control the amount of charge, or by connecting or disconnecting the power supply.
Heating unit
Any part of an appliance that has a cooking or holding function completely independently. Note, such as stoves, ovens, grills and warming cabinets. 2.102
Cooktop surface bob sarface
The horizontal part of the appliance that can place containers. 2.103
cooking zone
the mark on the surface of a cooktop where containers are placed for heating food. Usually, a cooking zone is a surface where a burner protrudes from the cooktop surface. 2.104
hob element
a heating element attached to the cooktop surface or placed under the cooking zone. 2.105
ioduction burner element a burner that heats a metal container by means of eddy currents. NOTE Eddy currents are induced in the base of the container by an electromagnetic field passing through a wire. 2.106
hob hob
an appliance having a cooktop surface and one or more burners which may be built-in or may be part of the cooktop. 2.107
inductor burner inductor burner
an appliance incorporating at least one induction burner. 2.108
Grill
Heating unit with a surface on which the food to be cooked can be placed directly. 2.109
Rill
Heating unit designed to cook food on a grid or a spit using radiant heat. Note: Cooking on a grill is called grilling. 2.110
Cooking range
An appliance with a cooking surface and at least one oven. It may also have a grill or a grill. GB 4706.22—2002/1EC 60335-2-6:19972. 111
Pyrolytic self-cleaning oven Pyrolytlic self-cleaning oven An oven in which cooking dirt is removed by heating the oven to a temperature exceeding 350°C. 2.112
temperature sensing probetemperature sensing probedevice which can be inserted into food to measure its moisture content and which is part of the oven controls. 2.113
touch control
a control which is activated by the contact or proximity of a finger and in which the two contacting surfaces move little or not at all. 2.114
pan detector
a device incorporated in a cooker which prevents the cooker from operating unless a container is placed on the cooking area. 2.115
steam ovensteam 0fen
an oven intended to cook food by means of steam generated within the appliance at atmospheric pressure. 2.116
rated water pressure
rated water pressure
the water pressure of the appliance specified by the manufacturer.
3 General requirements
The contents of this chapter in GB4706.1-1998 are applicable. 4 General conditions for testing
This chapter in CB 4706.1-1998 is applicable except for the following contents. 4.3 This clause adds the following contents:
For pyrolytic self-cleaning ovens, the tests included in 22.109 and 22.112~22.114 are carried out before the tests in Chapter 19. 4.4 This clause adds the following contents:
Gas-using appliances are supplied with gas at an appropriate rated pressure. Put a container with a diameter of 220mm and 2L of water on the cover or place it on the stove burner. Adjust the controller to make the water boil gently, and add water to maintain the water level during boiling. 4.101 Class III temperature sensing probes are only subject to the tests in Chapter 19. 5 Blank chapter
6 Classification
This chapter in GB4706.1-1998 is applicable except for the following contents. 6.1 This clause is modified as follows
The appliance shall be a Class I, Class II or Class D appliance. 7 Marking and instructions
This chapter in GB4706.1-1998 is applicable except for the following contents. 7.1 This clause is added with the following contents:
The total rated input power or total rated current of the electromagnetic cooker head shall also be marked. If the electric cooker is equipped with a socket protected by a non-D type fuse, the rated current of the corresponding fuse shall be marked. When a miniature fuse is provided, the mark shall indicate that the fuse has a high breaking capacity. 7.6 This clause is added with the following content:
０ On/off (push-push)
7.10 This clause is added with the following content:
GB 4706. 22—2002/IEC 60335-2-6:1997 The off position of the touch controller of the cooker shall be indicated by " ", and the on position shall be indicated by " ". If the cooker does not have a touch controller, this requirement applies to the touch controller of each cooker head. Note: If the same touch controller is used as an on/off switch, the symbol 5010 of IEC60417-1 can be used. 7.12 This clause is added with the following content:
If the surface of the cooker that protects live parts is made of fragile material or similar material, the instruction manual should contain the following warning: Warning: If the surface is cracked, turn off the appliance to avoid possible electric shock. The instruction manual for electric cookers and ovens should contain the following content: The appliance will heat up during use:. Take care to avoid contact with the heating elements in the oven. If the instructions indicate that the oven can be used as a grill with the door open, the instructions shall include the following warning: Warning - Accessible parts may become hot when using a grill. Keep away from children. The instructions for pyrolytic self-cleaning ovens shall indicate that excess spills must be removed before cleaning and shall list which appliances may be left in the oven during cleaning.
If the manufacturer indicates that the user may set the controls to a higher position than during normal cooking, the instructions shall indicate that in this case the surface temperature may be higher than usual and that children should be kept away. Ovens equipped with fans and with a guard that is removed during cleaning shall indicate that the oven must be disconnected from the power supply before the guard is removed. After cleaning, the guard must be reset to its original position according to the instructions. The instructions for appliances that do not comply with the test described in 11.102 shall include the following: There shall be an additional guard to prevent contact with the oven door. The device shall be suitable for situations where children may be present. The specifications of the components and information on how to obtain them should be given in the installation instructions. For ovens that provide a readily available temperature sensing probe, the instructions should include the following: It is recommended that only this temperature probe be used for this oven. The instructions for induction cooktops should include the following: Metal objects such as knives, forks, spoons and spoons should not be placed on the cooktop surface because they may become hot. The instructions for cooktops with lids should specify that spills on the lid should be cleaned before opening it. They should also specify that the cooktop surface should be cooled before closing the lid.
The instructions for cooktops with halogen lamps should warn the user not to damage the halogen lamps. The instructions for appliances intended to be connected to a water supply should include the maximum rated water pressure in kPa (kP). Cooktops with a pan detector should include the following: After use, the burner should be turned off by the control, not by relying on the pan detector. The instructions for electric cooktops, cooktops and ovens should state that steam cleaners should not be used. 7.12.1 The following content is added to this clause:
If the appliance is equipped with a light but is not provided with a switch with a contact opening of at least 3 Ω to disconnect the appliance from the mains, the following warning should be included in the instructions for use:
Warning: To avoid possible electric shock, make sure the appliance is switched off before changing the light. For electric cookers placed on the floor, the instructions for use should specify that if the cooker is placed on a support, a test should be carried out to prevent the appliance from sliding off the support.
Note: If the instructions for use specify the range of supports that cannot be placed, this provision is not required. 7.12.3 The following content is added to this clause:
If the cooker is not provided with a power cord, the instructions for use should specify the type of cord to be used, taking into account the temperature of the back of the cooking area. GB 4706.22—2002/IEC 60335-2-6: 1997
7.124 This clause adds the following:
The instructions for use of built-in appliances with separate control panels shall state that, in order to prevent possible hazards, the panel may only be connected to the specified heating unit.
7.15 This clause adds the following:
When the visible markings of a fixed-mounted appliance are not visible after installation, the relevant information shall be written in the instructions for use or on an additional label fixed near the appliance after installation. Jiang: For example, built-in cookers.
The marking of the rated current of the fuse protecting the socket shall be marked near the socket. 7.101 Steam-generating equipment intended for manual water filling shall be marked with the maximum water level that is clearly visible during water filling. Compliance shall be checked by inspection.
7.102 The cooking area on the cooker surface shall be identified by appropriate markings unless it is obvious. Compliance shall be checked by inspection.
8 Protection against touching live parts
This chapter in GB4706.11998 is applicable except for the following contents. 8.1.2 This clause adds the following contents:
For parts that may be accidentally touched by a fork or similar sharp object in normal use, the test pin shown in Figure 104 shall be used to apply an inconspicuous force to the part for testing. The test pin shall not touch the live parts. B.1.3 This clause makes the following amendments:
Only when the visibly glowing electric heating element is located at the top of the oven or grill compartment, it is allowed to use the test probe shown in Figure 3 instead of the test finger and test pin for inspection.
8.14 This clause adds the following contents:
If the test circuit contains a resistor with a resistance of 20000±100, and the measured discharge does not exceed 45μC during ignition, the easily touched parts of the ignition circuit of the gas-using appliance are considered to be live. 9 Starting of electric appliances
The contents of this chapter in GB 4706.1-1998 are not applicable. 10 Input power and current
(1) This chapter in GB 4706.1-1998 is applicable except for the following contents. 10.1 This clause adds the following contents:
The input power of the electric stove head is measured separately. And it is applicable to the deviation of the electric appliance. A socket on the appliance can carry a load with an input power of 1kW. Note: The socket is not loaded during the test.
10.2 This clause adds the following contents:
The current of the elevator stove head is measured separately. And it is applicable to the deviation of the electric appliance. A socket on the appliance can carry a current of 1kW divided by the rated voltage. Note: The socket is not loaded during the test.
11 Heating
This chapter in GB 47U6.1-1998 is applicable except for the following contents.
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