本欧洲标准规定了与公共低压配电网并联运行的微型发电厂的保护功能和运行能力的技术要求。本欧洲标准适用于微型发电厂的主要能源，其中微型发电指的是每相标称电流高达16 A、单相或多相230/400 V或多相230 V（相间标称电压）的设备出于实际原因，如果必须定义和/或提供设置，本欧洲标准指的是配电系统运营商，即使根据国家和欧洲法律框架，这些设置将由其他参与者定义和/或提供。

This European Standard specifies technical requirements for the protection functions and the operational capabilities of micro-generating plants, designed for operation in parallel with public low-voltage distribution networks.This European Standard applies irrespectively of the micro-generating plants' primary source of energy, where micro-generation refers to equipment with nominal currents up to and including 16 A per phase, single or multi phase 230/400 V or multi phase 230 V (phase-to-phase nominal voltage.)For practical reasons, this European Standard refers to the distribution system operator in case settings have to be defined and/or provided, even when these settings are to be defined and/or provided by another actor according to national and European legal framework.