HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189760 (8 Feb 2025)

GB 4706.48-2009 (GB/T 4706.48-2024 Newer Version) PDF English


Search result: GB 4706.48-2009 (GB/T 4706.48-2024 Newer Version)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
GB/T 4706.48-2024English274 Add to Cart 3 days Safety of household and similar electrical appliances - Part 48: Particular requirements for humidifiers Valid
GB 4706.48-2009English85 Add to Cart 0-9 seconds. Auto-delivery. Household and similar electrical appliances -- Safety -- Particular requirements for humidifiers Valid
GB 4706.48-2000English319 Add to Cart 3 days Safety of household and similar electrical appliances Particular requirements for humidifers Obsolete
BUY with any currencies (Euro, JPY, GBP, KRW etc.): GB 4706.48-2009     Newer/related standards: GB/T 4706.48-2024

PDF Preview: GB 4706.48-2009


GB 4706.48-2009: PDF in English

GB 4706.48-2009 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 13.260 K 09 GB 4706.48-2009 / IEC 60335-2-98:2005 (Ed 2.1) Replacing GB 4706.48-2000 Household and similar electrical appliances – Safety - Particular requirements for humidifiers (IEC 60335-2-98:2005 (Ed 2.1), IDT) ISSUED ON: MARCH 19, 2009 IMPLEMENTED ON: MAY 1, 2010 Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes. Table of Contents Foreword ... 4  IEC Foreword ... 6  Introduction ... 9  1 Scope ... 10  2 Normative references ... 11  3 Definitions ... 11  4 General requirements ... 12  5 General conditions for the tests ... 12  6 Classification ... 12  7 Marking and instructions ... 12  8 Protection against access to live parts ... 13  9 Starting of motor-operated appliances ... 13  10 Power input and current ... 13  11 Heating ... 13  12 Void ... 14  13 Leakage current and electric strength at operating temperature ... 14  14 Transient overvoltages ... 14  15 Moisture resistance ... 14  16 Leakage current and electric strength ... 15  17 Overload protection of transformers and associated circuits ... 15  18 Endurance ... 15  19 Abnormal operation ... 15  20 Stability and mechanical hazards ... 16  21 Mechanical strength ... 16  22 Construction ... 16  23 Internal wiring ... 17  24 Components ... 17  25 Supply connection and external flexible cords ... 17  26 Terminals for external conductors ... 17  27 Provision for earthing ... 17  28 Screws and connections... 17  29 Clearances, creepage distances and solid insulation ... 18  30 Resistance to heat and fire ... 18  31 Resistance to rusting ... 18  32 Radiation, toxicity and similar hazards ... 18  Annexes ... 19  Bibliography ... 19  Foreword All technical content of this Part is mandatory. This Part identically adopts IEC 60335-2-98:2005 Household and similar electrical appliances - Safety - Part 2.98: Particular requirements for humidifiers. This Part shall be used together with GB 4706.1-2005 Household and Similar Electrical Appliances - Safety - Part 1: General Requirements. The section indicated with “applicable” in this Part means that the corresponding provisions in GB 4706.1-2005 are applicable to this Part. The section indicated with “replacement” in this Part means that the provisions in this Part shall prevail. The sections indicated with “addition” in this Part means that in addition to corresponding provisions in GB 4706.1-2005, it shall also comply with the added provisions in this Part. For easy use, this Part made the following editorial modifications to IEC 60335-2-98: modified “Part 1” to “GB 4706.1-2005”. This Part is a revision to GB 4706.48-2000 Safety of household and similar electrical appliances - Particular requirements for humidifiers. Compared with GB 4706.48-2000, the main modifications in this Part are as follows: - added voltage scope in clause 1, added application scope in note 1; deleted the notes on the use in tropical area in note 2; added liquid heater in non-application scope in note 3; - added explanation in 3.1.6; - added that electrode humidifier shall be marked with rated input power in 7.1; - added that the instructions for use shall include cleaning details in 7.12; - added the measurement of the maximum input power and maximum input current of the electrode type humidifier from clause 10; - modified the pole-off distance to the full-pole off that meets the overvoltage category III condition; - added 29.2; - deleted 30.3 of GB 4706.48-2000. Household and similar electrical appliances – Safety - Particular requirements for humidifiers 1 Scope This clause of GB 4706.1-2005 is replaced by the following: This Part deals with the safety of electric humidifiers for household and similar use, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. NOTE 1: Examples of appliances that are within the scope are: - appliances that atomize water; - appliances that evaporate water by heating; - appliances that blow air through a moist element. Appliances that are not intended for normal household use, but that 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. As far as is practicable, this Part deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account - the use of appliances by young children or infirm persons without supervision; - playing with the appliance by young children. NOTE 2: Attention is drawn to the fact that: - for appliances intended to be used in vehicles or on the board ships or aircraft, additional requirements may be necessary; - in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labor and similar authorities. NOTE 3: This Part does not apply to: - appliances for heating liquids (GB 4706.19); - humidifiers intended for use with heating, ventilation or air-conditioning systems (IEC 60335-2-88); - appliances for medical purposes (GB 9706.1); - appliances intended exclusively for industrial purposes; - appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapor or gas). 2 Normative references This clause of GB 4706.1-2005 is applicable. 3 Definitions This clause of GB 4706.1-2005 is applicable except as follows. 3.1.6 Addition: NOTE: For electrode-type appliances, if no current is assigned to the appliance, the rated current is calculated from the rated voltage and the mean value of the power input during the first 2 min of operation, the appliance being supplied at rated voltage and operated under normal operation. 3.1.9 Replacement: normal operation operation of the appliance under the following conditions: The appliance is filled with the maximum quantity of water in accordance with the instructions, unless the appliance is connected to the water mains and the supply is automatically controlled. For electrode-type appliances, the water has a resistivity of approximately 500 Ω•cm at a temperature of 20°C. NOTE: The appropriate resistivity may be obtained by adding sodium chloride to the water. 3.101 electrode-type appliance ......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.