低压开关设备和控制设备 第8部分：用于光伏装置的成套装置

[中文适用范围]： IEC 61439-8:2026 规定了用于光伏安装的低压成套开关设备和控制设备（PVA）的设计与验证要求。光伏成套设备（PVA）具有以下特征： - 用于直流系统电能组合的成套设备，其输入和输出电压均不超过 1 500 V 直流； - 从交流电网供电，仅用于辅助和控制目的的成套设备，其电压不超过 1 000 V 交流； - 具有外壳的固定式成套设备； - 由授权人员操作的成套设备（参见 IEC 61439-1:2020，3.7.17），但可安装在普通人员可进入的区域（参见 IEC 61439-1:2020，3.7.16）； - 适用于室内或室外安装。 本文件明确了定义、规定了使用条件、详细说明了结构要求、界定了技术特性，并提供了验证方法。光伏成套设备（PVA）还可包括与电能分配相关的控制或信号装置，或两者兼有。本文件适用于所有光伏成套设备，无论其为单独设计制造，还是完全标准化并批量生产。制造、组装或两者均可由非原始制造商执行（参见 IEC 61439-1:2020，3.10.1）。 本文件不适用于以下情况： - 单个设备，例如断路器、熔断器式开关以及独立元件（如电动机启动器、开关电源（SMPS）、不间断电源（UPS）、基本驱动模块（BDM）、完整驱动模块（CDM）、可调速电力驱动系统（PDS）、独立储能系统（电池和电容系统）以及其他符合其相应产品标准的电子设备，如光伏组件接线盒等）。本文件描述这些设备如何集成至光伏成套设备中，或如何集成至作为光伏成套设备一部分的空外壳中； - 采用直流组合子系统的太阳能电力转换设备（PCE），此类设备由 IEC 62109 系列标准涵盖。 某些应用场景，例如爆炸性环境或功能安全，或两者兼有，除满足 IEC 61439 系列标准的要求外，还可能需符合其他标准或当地安装规则的要求。本文件不适用于 IEC 61439 系列其他部分所涵盖的成套设备类型。 [外文原描述]： IEC 61439-8:2026 specifies requirements for the design and verification of low voltage switchgear and controlgear assemblies for use in photovoltaic installations. PVAs have the following characteristics: - assemblies used for the combination of electrical energy in DC systems for which the input and output voltage does not exceed 1 500 V DC; - assemblies supplied from an AC network where the voltage does not exceed 1 000 V AC for auxiliary and control purposes; - stationary assemblies with an enclosure; - assemblies intended for operation by authorised persons (see IEC 61439 1:2020, 3.7.17), but can be located in an area accessible to ordinary persons (see IEC 61439 1:2020, 3.7.16); - suitable for indoor or outdoor installation. This document identifies definitions, specifies the service conditions, details the construction requirements, defines the technical characteristics, and provides verifications for PVAs. PVAs can also include control or signalling devices, or both, associated with the distribution of electrical energy. This document applies to all PVAs whether they are designed and manufactured on a one-off basis or fully standardized and manufactured in quantity. Either the manufacture or assembly, or both, can be carried out by an entity other than the original manufacturer (see IEC 61439 1:2020, 3.10.1). This document does not apply to: - individual devices, for example, circuit-breakers, fuse switches and self-contained components such as, motor starters, switch mode power supplies (SMPS), uninterruptable power supplies (UPS), basic drive modules (BDM), complete drive modules (CDM), adjustable speed power drives systems (PDS), stand-alone energy storage systems (battery and capacitor systems), other electronic equipment which comply with their relevant product standards, such as junction boxes of photovoltaic modules. This document describes their integration into a PVA or an empty enclosure used as a part of a PVA; - photovoltaic power conversion equipment (PCE) incorporating DC combination sub-systems, covered by the IEC 62109 series. Some applications, such as either explosive atmospheres or functional safety, or both, can be subject to the requirements of other standards or local installation rules in addition to those specified in the IEC 61439 series. This document does not apply to the specific types of assemblies covered by other parts of the IEC 61439 series.