与饮用水供应、废水和雨水系统有关的服务活动.饮用水分配网络的水损失调查指南

[中文适用范围]： 本文件提供了一种进行水损失调查并建立饮用水分配网络水损失管理一般原则的方法，以提高饮用水公用事业的可持续性，并通过节约水、能源和化学品的使用来保护环境。 本文件建立了通过水平衡计算来估计水损失成分的程序，并定义了水损失管理的一般原则。 本文件涉及水损失减少和管理项目的水损失管理计划的准备，但不包括其执行。 本文件不涵盖大容量饮用水供应系统，但可能涉及饮用水分配网络内的泵送、存储和传输。 本文件可类似地用于非公共供水系统、原水和工业水系统。 本文件适用于饮用水公用事业公司和其他利益相关者。 [外文原描述]： This document provides a methodology for undertaking a water loss investigation and establishing general principles for water loss management in drinking water distribution networks in order to improve the sustainability of drinking water utilities and protect the environment by saving water, energy and use of chemicals. This document establishes a procedure to estimate water loss components through water balance calculations and to define general principles of water loss management. This document deals with the preparation of a water loss management plan for water loss reduction and management projects but does not cover its execution. This document does not cover bulk drinking water supply systems, but can relate to pumping, storage and transmission within the drinking water distribution network. This document can be used analogously for non-public supply systems, raw water and industrial water systems. This document is intended for drinking water utilities and other stakeholders.