GB 4706.35-1996 Safety of household and similar electrical appliances - Special requirements for commercial electric cooking pots
Some standard content:
GB4706.35-1996 | and Amendment No. 1 1990). This standard should be used in conjunction with GB4706.1-92 "Safety General
Requirements for Household and Similar Electrical Appliances".
The safety standards for household and similar electrical appliances consist of two parts. The first part is the general requirements, and the second part is the special safety requirements for the product.
The part of this standard that says "applicable" means that the corresponding provisions in GB4706.1-92 are applicable to this standard; the part of this standard that says "replace" or "modify" should be based on this standard. The provisions in the standard shall prevail; the part in this standard that states "added" means that in addition to complying with the corresponding provisions of GB4706.1-92, it must also comply with the additional provisions in this standard. This standard is issued by the Domestic Trade of the People's Republic of China Proposed by the Industry Department of the Ministry of Industry and Commerce. This standard is jointly managed by the National Commercial Machinery Standardization Technical Committee and the National Household Electrical Appliances Standardization Technical Committee. The main drafters of this standard are: Wang Shujing and Xia Xiaoli. .35—1996
IEC Foreword
1) The Technical Committee, with the participation of all National Committees with special concerns, formulates formal resolutions or agreements on technical issues of the IEC, expressing as closely as possible the views on all matters. There is an international consensus on the issues involved. 2) These resolutions or agreements are in the form of recommendations for international use and are accepted by the National Committees in this sense. 3) In order to promote international uniformity, the IEC hopes to To the extent possible, all national committees should adopt the text recommended by IEC as their national regulations. Any differences between the standards recommended by IEC and the corresponding national standards should be clearly stated in the national standard wherever possible.
GB4706. .35—1996
IEC Preface
This publication is produced by IEC Technical Committee 61: Safety of Household and Similar Electrical Appliances, Subcommittee 61E "Safety of Commercial Electrical Food Processing and Service Equipment" formulate. It forms the first edition of the IEC335-2-47 publication. The text of this publication is based on the following documents: June Law
61E(CO)18
Voting Report
61E(CO)26
Further information is available on Found in the voting report shown in the table. February Procedure
61E(CO)31
Poll Report
61E(CO)33
This second part is prepared for use in conjunction with the IEC335-1 publication. It is based on the second edition (1976) and the second printing (1983), including revisions No. 1 (1977), No. 2 (1979) and No. 3 (1982), and is based on revisions No. 4 (1984), 5 (1986) and 6 (1988). It should be considered in future new versions of IEC335-1 publications or their modifications. This Part II supplements or modifies the corresponding provisions in the IEC335-1 publication in order to convert the publication into the IEC standard: Safety Requirements for Commercial Electric Cookers (First Edition).
If individual terms in Part One are not mentioned in Part Two, these terms will still apply as long as they are reasonable. When this first edition is marked as "added", "modified" or "replaced", the relevant requirements, test specifications or instructions in Part One should be modified accordingly. In this publication, the practices of different countries are noted as “some countries” in the following clauses: 6.1, 13.2, 16.2, 25.4. In this publication:
1) Use the following typography:
—the requirement itself: roman;
—the test specification: italics;
a note: Small roman type.
2) The added clauses or charts in the first part should be numbered starting from 101; the added appendices are marked with letters AA, BB, etc. The following IEC publications are cited in this standard:
Publication No. 529 (1976): Classification of the degree of protection provided by enclosures. 1 Scope
National Standard of the People's Republic of China
Safety of household and similar electrical appliances
Special requirements for commercial electric cooking pots
Safety of household and similar electrical appliancesParticular requirements for commercial electricboilingpans
This chapter in GB4706.1-92 is applicable except for the following content. 1.1 This article is replaced by the following:
This standard applies to commercial electric cooking pots not for general household use. The electrical parts of appliances that utilize other forms of energy are also within the scope of this standard. This standard does not apply to:
Industrial cooking pots:
Cooking pots for continuous operation for mass production of food; Cooking pots with electrode heaters;
Cooking under pressure Cooking pots for work; GB4706.35—1996
idt IEC335-2-47:1990
Appliances used in places with special conditions such as corrosive or explosive gases (dust, steam or gas) . Additional requirements may be required for appliances used on vehicles, vessels or aircraft. Special requirements may be required for appliances used in tropical countries. Additional requirements are required for pressure appliances.
Additional requirements set by the health, water supply and labor protection authorities of many countries should also be considered. 2 Definitions
This chapter in GB4706.1-92 is applicable except for the following content. 2.2.4 The following content is added to this article:
The rated input power is the sum of the rated input powers of all individual components in the appliance that can work simultaneously; among several such combinations that may exist, the maximum input power is provided combination to determine the rated input power. 2.2.19 The following content is added to this article:
Class I used in this standard should be understood as Class I structural components. 2.2.20 The following content is added to this article:
The subcategories used in this standard should be understood as straight category structural components. 2.2.29 This article is replaced by the following:
The full heat release condition means that the appliance works under the following conditions: the appliance works when water is filled to the liquid level mark. Any user-operated controls should be adjusted to their highest setting to boil water. Then adjust the controller to the lowest setting that will keep the water boiling. The cover and cover are in the normal position and the ears are closed. The State Administration of Technical Supervision approved the implementation on 1997-11-01 on 1996-11-01
2.2.30. This article is replaced by the following:
GB4706. 35-1996 | If any limiting device operates under this condition, the normal load is the load when the motor is running so that the input current is equal to 90% of the operating current of the limiting device. This input current is obtained by changing gears. This chapter adds the following clauses:
2.2.101 Boiling pot refers to an appliance that heats the liquid contained in its container to the boiling point as part of food processing. It can be fixed or tiltable.
2.2.102 Jacketed cooking pot refers to a cooking pot with a double-walled container. There is a heat transfer medium between the inner wall and the outer wall and is heated by an electric heating element. 2.2.103 Dual-purpose cooking pot refers to a double-walled cooking pot with two Container utensils, the inner container can be removed. This appliance may be used with or without an inner container.
2.2.104 Non-jacketed cooking pot refers to a kind of cooking pot in which the contents of the container are heated by elements other than the heat transfer interlayer. 2.2.105 Rated pressure refers to the maximum working pressure of the pressure-bearing parts of the appliance specified by the manufacturer. 2.2.106 Liquid level mark refers to the mark indicating the maximum liquid level on the container for correct operation. 3General requirements
The contents of this chapter in GB4706.192 are applicable. 4 General instructions in testing
This chapter in GB4706.1-92 is applicable except for the following content. 4.4 The following content is added to this chapter:
Unless otherwise specified, the test of the tilting boiler is carried out by placing the pot in the horizontal position for normal use. The following clauses are added to this chapter:
4.101 For combined appliances, if the input power of the heating part is increased to 1.15 times the voltage required for the rated input power, the ratio of increasing the motor voltage to 1.If the required voltage exceeds 3V when 06 times the rated voltage, the motor should use a separate power supply. 4.102 Appliances that are assembled with other appliances or equipped with other appliances shall be tested in accordance with the requirements of this standard. Other appliances work simultaneously in accordance with the requirements of relevant standards.
4.103 The test of the dual-purpose boiler can be carried out with or without the inner container. Refer to the manufacturer's instructions, whichever is more severe. 4.104 For appliances that use energy sources other than electricity, when testing the electrical components, the influence of the non-electrical components of the appliance must be considered. 5 Ratings
The contents of this chapter in GB4706.1-92 are applicable. 6 ClassificationbzxZ.net
This chapter in GB4706.1-92 is applicable except for the following content. 6.1 This article adds the following content:
Adds the following content to item 2:
- Spray-proof appliance (IPX5 in accordance with IEC Publication 529). This article adds the following content:
(3) Classification according to the degree of protection against temperature rise due to installation conditions: appliances installed in isolation;
"Appliances installed in other appliance units. Currently for There are no additional requirements for appliances installed in other appliance units. - Some countries do not allow ordinary appliances
GB4706.351996
GB4706.1-92. Chapter 7 is applicable except for the following content. 7.1 The following content is added to this article:
The appliance should also have the following markings:
Rated pressure (kPa) on the pressure-bearing parts of the appliance; For appliances connected to water sources, kPa is used to express the water pressure or pressure range, unless otherwise specified in the instructions. 7.6 Add the following content to this article:
Add the following two items to the symbol table:
kPa. .....
IPX5
...
7.10 This article adds the following content:
The switch that controls the tilting process of the tiltable appliance should clearly indicate the direction of movement. . 7.12 The following content is added to this article:
Kilopascal.
Anti-spray structure.
Appliances shall be accompanied by instructions detailing the operating procedures and user precautions. Instructions for maintenance, such as cleaning and filling of the heat transfer medium, should also be provided and detailed specifications for this heat transfer medium should be provided. For appliances permanently connected to fixed wiring, instructions should provide for measures to be taken to protect against leakage currents during installation. Information. If the appliance is not a spray-proof structure, clear and detailed instructions should be provided to the user together with the appliance. The instructions should indicate that the appliance cannot be cleaned with a water spray pipe.
Add the following clause to this chapter: ||tt ||7.101 The liquid level mark should be marked on the appliance.
8 Protection against electric shock
The contents of this chapter in GB4706.1-92 are applicable. 9. Start-up of electric appliances
GB4706 .1 The contents of this chapter in 1-92 are applicable. 10 Input power and current
This chapter in GB4706.1-92 is applicable except for the following contents. 10.1 This article adds the following contents:
The total input power of multiple units can be determined by measuring the input power of each unit separately. The rated input power is the sum of the rated input power of all individual components in the appliance that can be operated simultaneously; there may be several such When combined, the combination that provides the maximum input power is used to determine the rated input power. 11 Heating
In addition to the following content in this chapter of GB4706.1-92, the following content is added to this article: | |tt||Appliances fixed to the floor are installed in accordance with the manufacturer's instructions. If no instructions are provided, GB4706.1-92 applies. This article is replaced by the following:
When the initial water temperature is 15C ± 5 At ℃, the appliance works under full heat dissipation conditions, so that the total input power of the appliance is 1.15 times the rated input power. If it is not possible to turn on all heating elements at the same time, each combination must be tested under the conditions allowed by the switch configuration. When testing GB4706.35-1996
, turn on the highest possible load line for each switch configuration. Tilt and lift motors and stirrer motors operate under normal loads. If the appliance is provided with a control device that limits the total input power, the test shall be carried out with the combination of heating elements selected by the control device to impose the most severe conditions.
11.7 This article is replaced by the following:
Let the appliance work continuously until it reaches a stable state. After the appliance reaches a stable state, it immediately starts the tilt motor and runs a working cycle (a cycle is from the highest position to the lowest position and back to the highest position).
The lifting motor works the same as above, but runs for 3 working cycles. The stirring motor works continuously, unless it is equipped with a timer, and then works until the maximum time allowed by the timer, or until it reaches a steady state, whichever is shorter.
11.8 The following content is added to this article:
The pressure reducing device shall not operate during the test.
11.10 The content of this article is modified as follows:
Replace table note ① with the following content:
P=8000
12 Appliances with electric heating elements are under overload conditions The contents of this chapter in GB4706.1-92 are applicable to the next work. 13 Electrical insulation and leakage current at operating temperature This chapter in GB4706.1--92 is applicable except for the following content. 13.2 The content of this article is modified as follows:
Replace the specified value of leakage current of fixed Class 1 appliances with the following content: ·Appliances connected by cords and plugs
Other appliances
This article adds the following content:
1mA/kW maximum limit 10mA.
1mA/kW has no maximum limit.
When the appliance is equipped with Class 1 or Class 1 structural components, the leakage current of these components shall not exceed the values ??given in GB4706.1-92. Some countries set lower limits for leakage current. 14 Suppression of radio and television interference
The contents of this chapter in GB4706.1-92 are applicable. 15 Waterproof
This chapter in GB4706.1-92 is applicable except for the following content. 15.2 This article adds the following content:
Ordinary and drip-proof appliances must also withstand the splash test using the device shown in Figure 10 of GB4706.1-92. Spray-proof appliances must withstand the test described in IEC Publication No. 529 (IPX5). The content of 15.3 is modified as follows:
Replace the requirement with the following content:
The structure of the appliance should be in normal condition When used, the spillage of liquid will not affect its electrical insulation. Replace the paragraph about test instructions for liquid containers with the following: The container of the appliance is completely filled with water containing approximately 1% NaCI, and then water equal to 15% of the container capacity but not more than 10L is evenly poured into the container within 1 minute. .
GB4706.35-1996
When testing the sandwich boiler according to the above method, close the water injection hole. Then pour 2L cold salt water evenly on the water injection hole within 1 minute. Appliances connected to mains water shall be connected to a water source conforming to the maximum supply pressure indicated by the manufacturer for proper operation. Keep all devices that control water inflow open, and continue to inject water for 1 minute after the first overflow occurs, or until the protection device starts to stop water inflow.
15.4 The content of this article is modified as follows:
Replace the specified time with the following content:
The time the appliance is placed in the humid room (box) is 24 hours. The following content is added to this article:
If it is impossible to place the entire appliance in a humid room (box), parts with electrical components should be tested separately, paying attention to the conditions that occur within the appliance.
The following provisions are added to this chapter:
15.101 Appliances equipped with water switches for filling or cleaning shall be designed so that water flowing out of the switch cannot contact live parts. Compliance is checked by the following test: The appliance is connected to a water source corresponding to the maximum water supply pressure indicated by the manufacturer for correct operation. The movable parts, including the lid, are placed in the most unfavorable position, and the body of the tilting saucepan is placed in either tilted position. The rotatable outlet tube of the water switch is placed in such a position that water flows towards those parts that will produce the most adverse results. Open all devices for controlling water inflow for 1 minute. After this treatment, the appliance should immediately undergo the medium strength test in Chapter 16.
16 Insulation resistance and electrical strength
This chapter in GB4706.1-92 is applicable except for the following content. 16.2 The content of this article is modified as follows:
Replace the specified value of leakage current of fixed Class 1 appliances with the following content: ·Appliances connected by cords and plugs
·Other appliances.||tt ||Some countries set lower limits for leakage current. 17 overload protection
GB4706.The contents of this chapter in 1-92 all apply. 18 Durability
This chapter in GB4706.1-92 is applicable except for the following content. 18.1 The following content is added to this article:
The test is only performed on the electric components of the appliance. 18.2 The content of this article is modified as follows:
Replace the paragraph 2mA/kW maximum limit of 10mA in the test description under the table with the following content.
2mA/kW has no maximum limit.
The electric components of the appliance operate with an equal duty cycle for 48 hours under normal load and 0.9 times the rated voltage. This cycle is the shortest cycle recommended by the manufacturer or allowed by the design. The cycle includes load and no-load. 19 Abnormal operation
This chapter in GB4706.1-92 is applicable except for the following content. 19.1 The content of this article is modified as follows:
Replace the applicable test with the following content: GB4706.35-1996
·For all appliances, if necessary, conduct it in accordance with Articles 19.2 and 19.3 test. , appliances with controls that limit temperature and pressure during the test specified in Chapter 11, are tested in accordance with 19.4. ·Appliances with electric motors, if applicable, are tested in accordance with 19.6, 19.7 to 19.10. The following content is added to this article:
The continuous deflation of the pressure relief device itself is negligible. 19.2 The content of this article is modified as follows
Replace the first paragraph with the following content:
The appliance works under the conditions specified in Chapter 11, but there is no water in the container, and the controller is adjusted to the highest setting value , the power supply voltage determined before the test should make the input power equal to 0.85 times the rated input power when reaching a steady state under sufficient heat dissipation conditions, and this voltage should be maintained during the entire test.
The following content is added to this article:
For jacketed boilers equipped with pressure relief devices, the test continues until the pressure stabilizes. For jacketed boilers, the test of 19.3 shall be carried out in any case. 19.3 The following content is added to this article:
The heat transfer medium of the sandwich boiler may leak, evaporate, or drain. When conducting the test, fill the container with water to the liquid level mark and make the interlayer empty.
19.4 This article is replaced by the following:
The appliance is tested under the conditions specified in Chapter 11, the container is filled with water up to the liquid level mark, and the power supply voltage should be such that the input power is 1.24 times the rated input power. , and short-circuit any controller used to limit temperature or pressure during the tests of Chapter 11. If the appliance is equipped with more than one control unit, these controls shall be short-circuited in sequence. If the applicable IEC standard covers the conditions present in the appliance, a contactor that complies with the relevant standard shall not open or short-circuit. However, locking in the "on" position the main contacts of a contactor used in normal use to turn on and off a heating element shall be considered a fault condition unless the appliance is equipped with at least two sets of contacts connected in series . For example, two contactors that work independently of each other, or one contactor with two independent sets of main contacts operated by two independent armatures. 20 Stability and mechanical hazards
This chapter in GB4706.1--92 is applicable except for the following content. 20.1 This article adds the following content:
Covers, covers and accessories are placed in the most unfavorable position. Any liquid spillage can be ignored.
21 Mechanical strength
The contents of Chapter 21 in GB4706.1--92 are applicable. 22 Structure
This chapter in GB4706.1--92 is applicable except for the following content. 22.1 This clause is replaced by the following:
The appliance shall be of Class 1 construction.
Check whether it is qualified through inspection and relevant tests. 22.28 This article is replaced by the following:
When the interlayer of the sandwich boiler is operated at a pressure higher than atmospheric pressure (overpressure), an appropriate pressure relief device should be installed to prevent overpressure. Compliance is determined by operating the appliance at rated input power while disabling the pressure controller. The pressure relief device shall operate during the test to prevent the internal pressure from exceeding the rated pressure by 10%.
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