GB 4706.40-1997 Safety of household and similar electrical appliances Special requirements for commercial multi-purpose electric frying pans GB4706.40-1997 Standard download and unzip password: www.bzxz.net

GB4706.40-1997
Foreword
This standard is equivalent to IEC335-2-39 "Safety of Household and Similar Electrical Appliances Part 2: Special Requirements for Commercial Multi-Purpose Electric Pans" (1986) (second edition). This standard should be used in conjunction with GB4706.1-92 "General safety 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 marked "added" in this standard means that in addition to complying with the corresponding provisions of GB4706.1-92, it must also comply with the added provisions in this standard. This standard is proposed by the Industrial Department of the Ministry of Domestic Trade of the People's Republic of China. This standard is under the jurisdiction of the Commercial Electrical Food Processing and Service Equipment Subcommittee of the National Technical Committee for Standardization of Household Electrical Appliances. This standard was drafted by: National Catering Service Machinery Quality Supervision and Inspection Center. The main drafters of this standard: Gu Xiru, Xia Xiaoli, Wang Shujing, and Mao Suhua. GB4706.401997 | | tt | There is 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 unification, IEC hopes that all national committees shall adopt the contents of IEC standards as their national regulations to the extent permitted by their domestic circumstances. Any inconsistencies between the standards recommended by IEC and the corresponding national standards should be clearly stated in the national standards as much as possible.
IEC Preface
This publication was developed by Subcommittee 61E "Safety of Commercial Electrical Food Processing and Service Equipment" of IEC Technical Committee 61 "Safety of Household and Similar Electrical Appliances". It forms the second edition of the IEC 335-2-39 publication and replaces the first edition (1982). The text of this second edition is based on the first edition. This Part 2 needs to be used in conjunction with the IEC 335-1 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). This should be taken into account in future new versions of IEC335-1 publications or their modifications.
This section 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 Multipurpose Electric Pans (Second Edition). If an individual provision in Part One is not mentioned in Part Two, such provision shall still apply as long as it is reasonable. When this second edition is marked as "added", "modified" or "replaced", the relevant requirements, test specifications or instructions in Part One should be modified accordingly. In some countries the following differences exist:
- Ordinary appliances are not allowed (Article 6.1); only the and Article 16.2). In publications: wwW.bzxz.Net
1) Use the following typography:
Requirement itself: Roman;
—Test specifications: italic;
—Explanatory matters: Small Roman type.
2) The added clauses or diagrams to 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 multi-purpose electric pans
Safety of household and similar electrical appliancesParticular Requirements for commercial electric multi-purpose cooking pans Except for the following content, this chapter in GB4706.1-92 is applicable. 1.1 This article is replaced by the following:
This standard applies to commercial multi-purpose electric frying pans not for general household use. GB4706.40—1997
idtIEC335-2-39:1986
The electrical parts of appliances that use other forms of energy are also within the scope of this standard. The impact of non-electrical parts on the electrical parts should be considered consider.
This standard does not apply to:
- Multi-purpose electric pans for continuous operation for mass production of food; deep fryers;
- - In the presence of 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 set by the health, water supply and labor protection authorities of many countries should be taken into account. 2 Definition
Except for the following content, this chapter in GB4706.1-92 applies. 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, use the maximum input power 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:
“Class |” used in this standard should be understood as Class I structural components. 2.2.29 This article is replaced by the following:
Full heat release condition means the following conditions, under which the appliance works: the appliance operates without load in accordance with the manufacturer's instructions, and the controller is set to obtain the following temperature position, the temperature is measured at the geometric center of the inner surface of the pot bottom.
The segmented controller is set in the first position to make the temperature equal to or greater than 275℃. The cycle controller should be set so that the average temperature within the cycle is 275 ± 5°C. If this temperature cannot be reached, adjust the controller to the maximum setting value. The State Administration of Technology Supervision approved the implementation on 1998-12-01 on 1997-11-25
2.2.30 This article is replaced by the following content:
GB4706.40—1997
The normal load is Refers to the load when the appliance is operated under sufficient heat dissipation conditions and the motor installed in the appliance is operated in the required manner under the worst conditions that may occur in normal use according to the manufacturer's instructions. The following clauses are added to this chapter:
2.2.101 A multi-purpose pan is an appliance equipped with a shallow plate, the bottom of which is evenly heated, and is mainly used for cooking or making meat, soup, etc. It can be fixed or tiltable.
3 General requirements
This chapter in GB4706.1-92 shall apply. 4 General instructions in testing
Except for the following content, this chapter in GB4706.1-92 applies. 4.4 The following content is added to this article:
Unless otherwise stated, the test for tilted appliances is carried out by placing the pan in a horizontal position. 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 rated input power, the voltage required is higher than that required when the motor voltage is increased to 1.06 times the rated voltage. If the voltage exceeds 3V, the motor should use a separate power supply. 4.102 Appliances assembled with other appliances or equipped with other appliances shall be tested in accordance with the requirements of this standard. Other appliances should work simultaneously in accordance with the requirements of relevant standards.
5 Ratings
This chapter in GB4706.1-92 is applicable. 6 Classification
Except for the following content, this chapter in GB4706.1-92 is applicable. 6.1 Add the following content to this article:
Add the following content to item (2):
Anti-spray appliances (IPX5, classified in accordance with IEC Publication 529: Degree of protection provided by the enclosure). 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 units of other appliances. There are currently no additional requirements for appliances installed in sets of other appliances. 7 Mark
Except for the following content, this chapter in GB4706.1-92 is applicable. 7.1 This article adds the following content:
Rated capacity expressed in liters, unless otherwise specified in the instructions or by other methods, such as using a liquid level mark to mark the appliance. 7.6 This article adds the following content:
Adds the following symbols to the symbol table:
IPX5 *
7.12 This article adds the following content:
Anti-spray structure
Instructions should be provided with the product, which should detail the matters that require special care during installation. Operating procedures and user maintenance, such as cleaning, instructions such as GB4706.40-1997
should also be provided. Instructions should also include the advisory that the appliance should not be used as a deep fat fryer. For appliances that have an appliance input socket that needs to be immersed in water during cleaning, the instructions should state that the connector must be removed before cleaning the appliance and that the appliance input socket must be dried before next use. For appliances permanently connected to fixed wiring, the instructions should provide information on measures to be taken to protect against leakage currents during installation. If the appliance is not constructed to be spray-proof, clear and detailed instructions should be provided to the user along with the appliance. The instructions should indicate that this appliance must not be cleaned with a water spray hose.
8 Protection against electric shock
This chapter in GB4706.1-92 is applicable. 9 Start-up of electric appliances
This chapter in GB4706.1-92 is applicable. 10 Input power and current
Except for the following content, this chapter in GB4706.1-92 is applicable. 10.1 This article adds the following content:
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 powers of all individual components in the appliance that can be operated simultaneously: when several such combinations are possible, the combination with the largest input power is used to determine the rated input power. 11 Fever
Except for the following content, this chapter in GB4706.1-92 applies. 11.2 The following content is added to this article:
An appliance fixed to the floor shall be installed in accordance with the manufacturer's instructions. 11.4 This article is replaced by the following:
The appliance operates under sufficient heat dissipation conditions so that the total input power of the appliance is 1.15 times the rated input power. 11.7 This article is replaced by the following:
Let the appliance work until it reaches a stable state. 12. This chapter in GB4706.1-92 is applicable when appliances with electric heating elements are operated under overload conditions. 13 Electrical insulation and leakage current at operating temperature Except for the following content, this chapter in GB4706.1-92 is applicable. 13.2 This article is modified with the following content: replace the leakage current of fixed Class 1 appliances with the following content Specified values: ·Appliances connected with 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 I or Heavy Class structural components, the leakage current of these components shall not exceed the values ??given in GB4706.1-92. 14 Suppression of radio and television interference
This chapter in GB4706.1-92 is applicable. 15 Waterproof
GB4706.40-1997
Except for the following content, this chapter in GB4706.1-92 is applicable. 15.2 The following content is added to this article:
Ordinary and drip-proof appliances also need to conduct splash tests using the device shown in Figure 10 of GB4706.1-92. Spray-proof appliances are subject to the tests described in IEC Publication No. 529 (IPX5). 15.3 The following content is added to this article:
These appliances are considered to be capable of spilling liquids during normal use. The following content is added to this article:
Immediately following the overflow test done previously, tiltable appliances should also undergo the following test: pour cold water containing approximately 1% NaCI into the pan to the rated capacity or liquid level mark, and then The pan can be tilted in any position without spillage that would reduce the level of safety within the meaning of this standard. This article adds the following content:
See subclause 22.103.
15.4 This article is modified with the following content: 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 not possible to place the entire appliance in a humid chamber (box), the heating elements should be tested separately. This chapter adds the following clauses:
15.101 Tiltable appliances equipped with water filling or cleaning water switches shall be designed so that water flowing out of the switch cannot come into contact with live parts when tilted.
Determine compliance through the following tests. Place the pan in any tilted position, connect the appliance to a water source with a pressure of 300kPa, and fully open the device for controlling water inflow for 1 minute. The rotating outlet pipe of the water switch should direct the flow of water to the point where the most unfavorable results will occur. Immediately after such testing, the appliance shall be subjected to the dielectric strength test of Chapter 16.
16 Insulation resistance and electrical strength
Except for the following content, this chapter in GB4706.1-92 is applicable. 16.2 This article is modified with the following content: replace the specified value of leakage current of fixed Class 1 appliances with the following content: ·Appliances connected by cords and plugs
·Other appliances
17 Overload protection
This chapter in GB4706.1-92 is applicable. 18 Durability
Except for the following content, this chapter in GB4706.1-92 is applicable. 18.1 The following content is added to this article:
..2mA/kW maximum limit is 10mA;
: 2mA/kW has no maximum limit.
The test is only carried out on the electric parts of the appliance. 18.2 This article is revised with the following content: GB4706.40—1997
Replace the test description paragraph in the table with the following content: The electric components of the appliance operate under normal load and 0.9 times the rated voltage for 48 hours. 19 Abnormal operation
Except for the following content, this chapter in GB4706.1-92 applies. 19.1 This article is amended with the following content: The applicable test is replaced by the following content: All appliances are tested in accordance with 19.4. : Appliances with electric motors, if applicable, are tested in accordance with 19.6 and 19.7 to 19.10. 19.4 This clause is replaced by the following:
The appliance is tested under the conditions specified in Chapter 11, but the voltage shall be such that the input power is 1.24 times the rated input power, and any temperature used to limit the temperature during the test in Chapter 11 shall be Controller short circuit. If the appliance is equipped with more than one control unit, these controls shall be short-circuited in sequence. If a separate thermal circuit breaker is used so that it controls the same contactor as a thermostat, the following applies: to operate the appliance at rated voltage or at the upper end of the rated voltage range and normal load, if a sample contactor The sample contactor shall not short-circuit during the test if it has been proven to withstand 100,000 duty cycles (100,000 make and 100,000 break) under conditions equivalent to those actually occurring within the appliance.
20 Stability and mechanical hazards
This chapter in GB4706.1--92 is applicable. 21 Mechanical strength
This chapter in GB4706.1-92 is applicable. 22 Structure
Except for the following content, this chapter in GB4706.1-92 is applicable. 22.1 This article is replaced by the following:
The appliance shall be Class I Class 1.
Conformity is determined by inspection and relevant tests. The following clause is added to this chapter:
22.101 Appliances shall be protected so that moisture and grease do not accumulate to an extent that affects the values ??of creepage distances and clearances, unless the values ??of creepage distances and clearances in 29.1 are increased 50%. Compliance is determined by inspection and measurement. 22.102 Thermal circuit breakers shall be of the non-automatic reset free trip type. Compliance is determined by inspection and manual test. 22.103 Appliances should be designed to adequately prevent hot oil from spilling or splashing onto parts whose temperatures in normal use exceed 300°C. Compliance shall be determined by inspection after carrying out the test of 15.3. 22.104 Appliances should be equipped with mechanical means to prevent accidental tilting. 1) For appliances that should use a three-phase five-wire power plug, if there is no applicable plug or socket in my country, the appliance is allowed to be Category 01. GB4706.40—1997
If the pan is equipped with a tilting device operated by an electric motor, it should be designed so that the electric motor can only operate when pressure is maintained on the control button or switch. Such buttons or switches should be located and protected so that they cannot be accidentally operated. If the pan is tilted mechanically, it should not affect the action of the mechanism. Compliance is determined by visual inspection and applying a force of 340N at any point of the pan22.105 Appliances should be designed so that the heating element automatically disconnects when the pan is tilted to an angle of more than 5° with the horizontal plane. Compliance is determined by inspection and measurement. 23 Internal wiring
This chapter in GB4706.1--92 is applicable. 24 components
Except for the following content, this chapter in GB4706.1--92 is applicable. The following clauses are added to this chapter:
24.101 The connector assembled on the appliance shall not be equipped with a temperature controller. Compliance is determined by inspection.
25 Power supply connection and external flexible cables and cords
Except for the following content, this chapter in GB4706.1-92 is applicable. 25.2 The following content is added to this article:
The design of fixedly installed appliances and appliances weighing more than 40kg and not equipped with rollers or casters should allow the appliance to be installed in accordance with the manufacturer's instructions before connecting the power cord. 25.3 This article adds the following content:
Anti-spray appliances shall not be equipped with input sockets. 25.4 This article adds the following content:
Appliances delivered without cords should be connected by X. 25.6 This article is amended with the following content: Replace the specified type of power cord with the following content: The power cord shall be an oil-resistant flexible sheathed cable, not lighter than ordinary fluoroprene or other equivalent synthetic rubber sheathed softer cables. wire (code 245 in IEC57).
26 External conductor terminal block
This chapter in GB4706.1--92 is applicable. 27 Grounding measures
Except for the following content, this chapter in GB4706.1-92 is applicable. 27.2 The following content is added to this article:
Fixed appliances shall be equipped with a terminal block for connection to external equipotential conductors. The terminal block shall maintain an effective electrical connection with all fixed exposed metal parts of the appliance and shall be able to be connected to conductors with a nominal cross-sectional area of ??less than 10 mm2. Terminals shall be placed at a location convenient for connection to the reinforced earth conductor after the appliance is installed. 28 Screws and wiring
This chapter in GB4706.192 is applicable. | |tt | 29.1 The following content is added to this article;
Refer to Article 22.101.
Heat resistance, flame resistance and tracking resistance
30
This chapter in GB4706.1-92 is applicable.
31 Anti-rust
This chapter in GB4706.1-92 is applicable. 32
Radiation, toxicity and similar hazards
This chapter in GB4706.1-92 is applicable.
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