This chapter of GB 4706.1-2005 is replaced by the following: This part of GB 4706 is applicable to the safety of industrial and commercial vacuum cleaners driven by electric motors, including portable appliances and stationary appliances with or without accessories, including wet, dry, or both. For example, dust or similar dirt extracted from workbenches and machines. The rated voltage of its single-phase appliances shall not exceed 250 V, and the rated voltage of other appliances shall not exceed 480 V. Note 101. Commercial use refers to the use in hotels, schools, hospitals, factories, shops, and offices, rather than for general household chores. This section also applies to the collection of hazardous dust appliances, including asbestos, or liquids that are subject to additional national requirements. This section also applies to other driving forms of appliances other than electric motors, but its function must be considered. For battery powered appliances, reference should be made to IEC 60335-2-72. Note 102: The following facts are noted: - For appliances intended for use on vehicles, ships, or aircraft, additional requirements may be required—— National health care departments, national labor protection departments, and similar departments all have additional requirements for equipment regulations. Note 103: This section does not apply to: - household vacuum cleaners and water absorbing cleaning appliances included in GB 4706.7; - centrally installed stationary central vacuum cleaning systems—— Intended to be used in special environments where corrosive or explosive gases (vapors or combustible gases) are frequently generated; - Audio, Video, and Similar Electronic Devices (GB 8898> - Medical Devices (GB 9706); - Handheld electric tools (GB 38833; - Personal computers and similar devices (GB4943> - Mobile electric tools (GB 13960.2 normative reference document) This chapter in GB 4706.1-2005 applies except for the following content. The clauses in the following documents become clauses of this part through reference in this part of GB4706. For dated reference documents, all subsequent modification orders (excluding corrected content) shall apply Neither the revised version nor the revised version applies to this section. However, all parties who have reached agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. Add the following reference documents: GB/T 1251.1 Ergonomics, Hazard Signals in Public Places and Work Areas, Hazard Auditory Signals (GB/T 1251.1-2008. ISO 7731; 2003. IDT) GB/T 1251.2 General Requirements for Ergonomics and Hazard Visual Signals, Design and Inspection (GB/T 1251.2-2006, ISO 11428:1996,1DT) GB/T 20291 Performance Testing Methods for Household Vacuum Cleaners (GB/T 20291-2006, IEC 60312:2004, IDT) GB/T 4214.2-2008 Noise Testing Methods for Household Appliances and Similar Appliances, Special Requirements for Vacuum Cleaners (IEC 60704-2-1:2000, IDT)