This standard specifies the definition, product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of AC ventilation fans and their speed regulators (hereinafter referred to as ventilation fans) used for household and similar purposes on single-phase AC lines not exceeding 250 V, with input power not exceeding 500 W and impeller diameter not exceeding 0.5 m. These fans are driven by single-phase AC motors and used for mechanical ventilation. This standard applies to partition type (A type) ventilation fans; Free intake type (B-type) ventilation fan; Free exhaust type (C-type) ventilation fan; Full duct type (D-type) ventilation fan. This standard is not applicable to ventilation fans for other purposes, including ventilation fans specifically designed for industrial use; Ventilation fans intended for use in areas with special conditions such as corrosive or explosive atmospheres (dust, steam, or gases); Ventilation fans for air heaters, refrigeration equipment, or air conditioners; Ventilation fans installed in appliances such as stoves, range hoods, and microwave cooking utensils; Ventilation fans for vehicles, ships, or aircraft. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 191 Packaging, Storage and Transportation Pictorial Symbols (GB/T191-2008, ISO 7801997, MOD) GB/T 1002 Types, Basic Parameters and Dimensions of Single-phase Plugs and Sockets for Household and Similar Purposes GB/T 1003 Types of Three-phase Plugs and Sockets for Household and Similar Purposes, Basic Parameters and Dimensions GB/T 1236-2017 Industrial Ventilators - Performance Tests for Standardized Air Ducts (ISO 5801; 2007, DT) GB/T 2099.1 Plugs and Sockets for Household and Similar Purposes - Part 1: General Requirements (GB/T 2099.1-2008, EC 60884-1:2006, MOD) GB/T 2423.3 Environmental Testing, Part 2: Test Methods - Test Ca: Constant Damp Heat Test (GB/T 2423.3-2016, IEC 60068-2-78: 2012,1DT) GB/T 2423.17 Environmental Testing of Electrical, Industrial and Electronic Products - Part 2: Test Methods, Test Ka: Salt Spray (GB/T 2423.17-2008, IEC 60068-2-11:1981,1DT) GB/T 2828.11 Batch Inspection and Sampling Procedures - Part 1: Batch Inspection and Sampling Plan Retrieved by Acceptance Quality Limit (AQL) (GB/T 2828.1-2012. ISO 2859-1:1999,1DT) GB/T 2829 Periodic Inspection and Sampling Procedures and Tables (Applicable to Inspection of Production Process Stability) GB/T 2900.292008 Electrotechnical Terminology Household and Similar Electrical Appliances GB/T 3667.1 AC Motor Capacitors Part 1: General, Performance Testing and Rating Values, Safety Requirements, Installation and Operation Guidelines (GB/T 3667.1-2016, IEC 60252-1:2013. IDT) GB/T 4208-2017 Degrees of Protection Provided by Enclosures (IP Code) (IEC 60529; 2013,1DT) GB/T 4214.1 Acoustics - Noise Testing Methods for Household Appliances and Similar Purposes - Part 1: General Requirements (GB/T 4214.1-2000,1EC 60704-1:1997, EQV) GB 4343.1 Household Appliances Electromagnetic compatibility requirements for electric tools and similar appliances - Part 1: Emission (GB 4343.1-2009, CISPR 14-1; 2005,1DT)
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