家用及类似用途电器 空气噪声测定测试规范 第2-20部分：湿式硬质地面清洁器具的特殊要求

[中文适用范围]： 本部分IEC 60704适用于家庭及类似用途的电动器具（包括其附件或组件），由电源或电池供电。所谓“类似用途”是指在使用条件与家庭环境相似的情况下使用，例如在旅馆、咖啡馆、茶室、酒店、理发店或美发店、洗衣店等，除非IEC 60704-2系列另有规定。本文件不适用于：- 专供工业或专业目的设计的器具、设备或机器；- 作为建筑物或其安装的组成部分的器具，例如用于空气调节、供暖和通风的设备（家用风扇、炉灶抽油烟机、独立供暖设备、除湿机、空气净化器及独立式热水器除外）、中央供暖用油燃烧器、供水和污水处理系统用泵；- 单独的电机或发电机以及专供户外使用的器具。对于确定和验证产品规格中声明的噪声发射值，见IEC 60704-3:2019。本文件规定了家庭或类似用途的交流电及无绳湿式硬地面清洁器具的空气声学噪声的确定。对于具有复合功能的器具，本文件仅涉及湿清洁功能。本文件不适用于工业或专业用途的湿式硬地面清洁器具以及机器人湿式硬地面清洁器具。注101：本文件不 intended 用于符合IEC 60335-2-79、IEC 60704-2-1、IEC 60704-2-17的清洁器具。本文件描述了按照IEC/ASTM 62885-6:2023的4.6节，在正常操作条件下于硬地板上确定湿式硬地面清洁器的噪声排放。 [外文原描述]： IEC 60704-2-20:2026 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 60704-2-20:2026 EXV includes the content of the references made to IEC 60704-1:2021. IEC 60704-2-20:2026 specifies the determination of airborne acoustical noise of mains operated and cordless wet hard floor cleaning appliances for household or similar use. In the case of appliances with combined functionality, this document only addresses the wet cleaning functionality. This document does not apply to wet hard floor cleaning appliances for industrial or professional purposes and robotic wet hard floor cleaning appliances. This document is not intended for cleaning appliances according to IEC 60335-2-79, IEC 60704-2-1, IEC 60704-2-17. This document describes the determination of the noise emission of wet hard floor cleaners under normal operating conditions on hard floor in accordance with 4.6 of IEC/ASTM 62885-6:2023. For determining and verifying noise emission values declared in product specifications, see IEC 60704-3. This document is intended to be used in conjunction with IEC 60704 1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.