技术规范BS PD IEC/TS 62257-9-4:2016规定了一般要求 用于用户安装的设计和实施。IEC 62257的本部分适用于单相用户电气装置，最大 分散式农村电气化系统（DRES）的功率为500 VA。注:对于分散电气化系统中高于500 VA的安装，IEC TS 62257-5适用。IEC 62257的本部分适用于由交流微电网（120V或更高电压）供电的装置 220 V或230 V或240 V）以及包含其自身单个交流装置的装置。 微动力装置（120 V或220 V或230 V或240 V）或直流微动力装置（12 V或24 V）。IEC 62257部分既不适用于电力生产和配电 有关微动力装置和微电网的条款中所述的装置，也不适用于 用户电气设备。它详细说明了管理建筑设计和施工的规则 为确保人身安全而安装的用户电气装置 以及符合安装目的的良好运行 都是设计好的。它适用于新安装和现有安装的修改。交叉引用:IEC 60269IEC 60364-5-52IEC 62257IEC/TS 62257-5IEC/TS 62257-7IEC/TS 62257-7-1IEC/TS 62257-9-3购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS PD IEC/TS 62257-9-4:2016, which is a technical specification, specifies the general requirements for the design and the implementation of a user's installation.This part of IEC 62257 applies to single phase user's electrical installations with maximum power of 500 VA, in Decentralized Rural Electrification Systems (DRES).NOTE For installations above 500 VA in decentralized electrification systems, IEC TS 62257-5 applies.This part of IEC 62257 is applicable to installations supplied by an a.c microgrid (120 V or 220 V or 230 V or 240 V) and to installations encompassing their own single-unit a.c. micropower plant (120 V or 220 V or 230 V or 240 V) or d.c micropower plant (12 V or 24 V).The part of IEC 62257 applies neither to the electric power production and distribution installations described in the clauses concerning micropower plants and microgrids, nor to user electrical equipment. It details the rules governing the design and construction of consumer's electrical installations for the purpose of ensuring the safety of persons and property, and satisfactory operation in accordance with the purpose for which the installations are designed.It applies to new installations and modifications of existing installations.Cross References:IEC 60269IEC 60364-5-52IEC 62257IEC/TS 62257-5IEC/TS 62257-7IEC/TS 62257-7-1IEC/TS 62257-9-3All current amendments available at time of purchase are included with the purchase of this document.