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GB/T 4706.1-2024: Safety of household and similar electrical appliances - Part 1: General requirements Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 4706.1: Historical versions
Similar standardsGB/T 4706.1-2024: Safety of household and similar electrical appliances - Part 1: General requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT4706.1-2024 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 13.120 CCS K 09 GB/T 4706.1-2024 / IEC 60335-1.2016 Replacing GB 4706.1-2005 Safety of Household and Similar Electrical Appliances – Part 1.General Requirements (IEC 60335-1.2016, Household and Similar Electrical Appliances – Safety – Part 1.General Requirements, IDT) Issued on: JULY 24, 2024 Implemented on: AUGUST 1, 2026 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 4 Introduction... 10 1 Scope... 11 2 Normative References... 12 3 Terms and Definitions... 20 4 General Requirement... 31 5 General Conditions for the Tests... 31 6 Classification... 35 7 Marking and Instructions... 35 8 Protection against Access to Live Parts... 45 9 Starting of Motor-Operated Appliances... 47 10 Power Input and Current... 47 11 Heating... 49 12 Void... 54 13 Leakage Current and Electric Strength at Operating Temperature... 54 14 Transient Over-Voltages... 57 15 Moisture Resistance... 58 16 Leakage Current and Electric Strength... 61 17 Overload Protection of Transformers and Associated Circuits... 63 18 Endurance... 64 19 Abnormal Operation... 64 20 Stability and Mechanical Hazards... 75 21 Mechanical Strength... 77 22 Construction... 78 23 Internal Wiring... 92 24 Components... 95 25 Supply Connection and External Flexible Cords... 100 26 Terminals for External Conductors... 110 27 Provision for Earthing... 113 28 Screws and Connections... 116 29 Clearances, Creepage Distances and Solid Insulation... 119 30 Resistance to Heat and Fire... 130 31 Resistance to Rusting... 137 32 Radiation, Toxicity and Similar Hazards... 137 Annex A (Informative) Routine Tests... 150 Annex B (Normative) Appliances Powered by Rechargeable Batteries That are Recharged in the Appliance... 153 Annex C (Normative) Ageing Test on Motors... 159 Annex D (Normative) Thermal Motor Protectors... 161 Annex E (Normative) Needle-Flame Test... 162 Annex F (Normative) Capacitors... 163 Annex G (Normative) Safety Isolating Transformers... 165ForewordThis Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents. This Document is Part 1 of GB/T 4706 Safety of Household and Similar Electrical Appliances. GB/T 4706 consists of the following parts. --- Part 1.General Requirements; --- Part 2.Particular Requirements for Electric Irons; ... --- Part 121.Particular Requirements for Professional Ice-Cream Makers. This Document replaced GB 4706.1-2005 Household and Similar Electrical Appliances – Safety – Part 1.General Requirements. Compared with GB 4706.1-2005, the major technical changes of this Document are as follows besides the structural adjustments and editorial modifications. --- Change the scope of application of the Document; and further clarify the scope of application and inapplicability of the document (see Clause 1 of this Edition; Clause 1 of the 2005 Edition); --- Add the terms and definitions such as "remote operation", "battery-powered equipment", "small parts", "battery box", "detachable power supply unit", and "pre-set weak parts", etc. (see 3.1.12, 3.3.16, 3.6.6, 3.6.7, 3.6.8, and 3.7.8 of this Edition); --- Delete the terms and definitions of "detachable cord", "Level-B software", and " Level- C software" (3.2.1, 3.9.4, and 3.9.5 of the 2005 Edition); --- Add the test sequence description of 19.14 (see 5.3 of this Edition); --- Add the description on the setting of "voltage selector switch" (see 5.6 of this Edition); --- Add the general test conditions for Class-III structural components of appliances (see 5.10 of this Edition); --- Add the types of appliances to which the test conditions of 5.13 apply (see 5.13 of this Edition); --- Add the test conditions for "appliances powered by non-rechargeable batteries or by batteries not charged inside the appliance" (see 5.17, Annex S of this Edition); --- Add the test conditions for components or parts of appliances with both self-resetting and non-self-resetting characteristics (see 5.19 of this Edition); --- Add the method for determining the appliance category for "appliances consisting of Class-III structural components and detachable power supply components" (see 6.1 of this Edition); --- Add the symbol requirements for "Class-II appliances with functional grounding", "Class-III appliances", and "functional grounding terminal", etc. (see 7.1, 7.6, 7.8 of this Edition); --- Change the symbol corresponding to "Read the operating manual" (see 7.6 of this Edition; 7.6 of the 2005 Edition); --- Add requirements for special populations, Class-III structures and Class-III appliances in the instructions for use (see 7.12 of this Edition); --- Add requirements for different languages and alternative formats of instructions for use (see 7.12.9 of this Edition); --- Add requirements for font height of warning words and requirements for molded, engraved or stamped signs (see 7.14 of this Edition); --- Add requirements for the marking position of symbol 5018 specified in IEC 60417 (see 7.15 of this Edition); --- Add requirements and test methods for providing complete disconnection after the switch device realizes a switching action (see 8.1.3 of this Edition); --- Add the requirements of "For peak voltage greater than 15kV, the discharge energy shall not exceed 350mJ" (see 8.1.4 of this Edition); --- Change the input power measurement method of "appliances whose input power varies throughout the working cycle" (see 10.1 of this Edition; 10.1 of the 2005 Edition); --- Change the current measurement method of "appliances whose current varies throughout the working cycle" (see 10.2 of this Edition; 10.2 of the 2005 Edition); --- Change the maximum normal temperature rise requirements for the pins of the appliance plugged into the fixed socket, the housing of the electric appliance, the handles, knobs, grips and similar parts held in normal use (see Table 3 of this Edition; Table 3 of the 2005 Edition); --- Change the leakage current test method and limit value of some types of appliances and structures (see 13.2 of this Edition; 13.2 of the 2005 Edition); --- Change the pulse test voltage values corresponding to some rated pulse voltages (see Table 6 of this Edition; Table 6 of the 2005 Edition); Safety of Household and Similar Electrical Appliances – Part 1.General Requirements1 ScopeThis Document specifies the safety requirements for household and similar electrical appliances. This Document applies to household and similar electrical appliances with a rated voltage not exceeding 250V for single-phase appliances and a rated voltage not exceeding 480V for other appliances. 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 Standard. This Standard deals with the reasonably foreseeable hazards presented by appliances that are encountered by all persons. However, in general, it does not take into account. – persons (including children) whose • physical, sensory or mental capability imperfections; or • lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction; – children playing with the appliance. NOTE 3.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, the2 Normative ReferencesThe provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB/T 11021-2014 Electrical Insulation -Thermal Evaluation and Designation (IEC 60085.2007, IDT) GB/T 12113-2023 Methods of measurement of touch current and protective conductor current (IEC 60990.2016, IDT) GB/T 14536.9-2008 Automatic electrical controls for household and similar use - Particular requirements for electrically operated water valves including mechanical requirements (IEC 60730-2-8.2003, IDT) GB/T 16842-2016 Protection of persons and equipment by enclosures-Probe for verification (IEC 61032.1997, IDT) GB/T 16935.1-2008 Insulation coordination for equipment within low-voltage systems - Part 1.Principles requirements and tests (IEC 60664-1.2007, IDT) GB/T 16935.4-2011 Insulation coordination for equipment within low-voltage systems - Part 4.Consideration of high-frequency voltage stress (IEC 60664-4.2005, IDT)3 Terms and DefinitionsFor the purposes of this document, the following terms and definitions apply. 3.1 Definitions relating to physical characteristics 3.1.1 Rated voltage Voltage assigned to the appliance by the manufacturer. 3.1.2 Rated voltage range Voltage range assigned to the appliance by the manufacturer, expressed by its lower and upper limits.4 General RequirementAppliances shall be constructed so that in normal use, they function safely so as to cause no danger to persons or surroundings, even in the event of carelessness that may occur in normal use. In general, this principle is achieved by fulfilling the relevant requirements specified in this standard and compliance is checked by carrying out all the relevant tests.5 General Conditions for the TestsUnless otherwise specified, the tests are carried out in accordance with this clause. 5.1 Tests according to this standard are type tests. NOTE. Routine tests are described in Annex A. 5.2 The tests are carried out on a single appliance that shall withstand all the relevant tests. However, the tests of Clauses 20, 22 (except 22.10, 22.11 and 22.18) to 26, 28, 30 and 31 may be carried out on separate appliances. The test of 22.3 is carried out on a new appliance. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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