标准摘要
[中文适用范围]: 本国际标准规定了家用和类似用途器具的要求,以防止非饮用水反虹吸到总水管中。它还规定了用于将此类设备连接到供水压力不超过 1 MPa 的水管的软管组的要求。注 1:类似目的的例子包括在食堂、餐馆、自助洗衣店和公共公寓安装电器。注2:本标准不适用于——干洗用器具; - 医疗用具; - 用于工业用途的器具;热水器是供水系统的组成部分; - 水冷却器是供水系统的组成部分。注 3:器具与总水管的连接可以是临时的,也可以是永久的。注 4:当提及供水总管时,还包括从水箱或类似系统供应的水。注 5:许多国家都有关于防止由于与防回流装置上游的不合适材料接触而造成饮用水污染的要求。 [外文原描述]: IEC 61770:2008 provides requirements for appliances for household and similar purposes to prevent the backsiphonage of non-potable water into the water mains. It also specifies requirements for hose-sets used for connecting such appliances to the water mains that supply water at a pressure not exceeding 1 MPa. The major changes in this edition as compared with the first edition are as follows: normative references are updated; some notes have been converted to normative text (3.10, 5.2, 6.3, 7.2 and Annex A); the type of petroleum spirit has been specified (9.3).
英文名称Electric appliances connected to the water mains - Avoidance of backsiphonage and failure of hose-sets