家用及类似用途插头插座 第2-7部分：电源延长线的特殊要求

[中文适用范围]： IEC 60884-2-7:2025 EXV 包含国际标准及其扩展版本 (EXV)。此官方 IEC 标准的扩展版本仅提供英文版，为用户提供标准的全面内容。IEC 60884-2-7:2025 EXV 包括对 IEC 60884-1:2022 的引用内容。IEC 60884-2-7:2025 适用于可重新接线和不可重新接线的电线延长线组，带或不带接地触点，额定电压大于 50 V 但不超过 440 V，额定电流不超过 16 A，用于家庭和类似用途，室内或室外。本文件不适用于带有卷线装置的电线延长线组。IEC 60884-2-8 还涵盖了用作家具插座的电线延长线组。本文件还适用于旨在用于电缆卷筒中并因此成为带有可拆卸柔性电缆的电缆卷筒的电线延长装置。对于电线延长装置的组合，还适用 IEC 61242 的卷筒要求和测试。电线延长装置适合在环境温度通常不超过 +40 °C 的条件下使用，但其 24 小时内的平均温度不超过 +35 °C，环境空气温度下限为 −5 °C。第二版取消并取代了 2011 年发布的第一版和修订 1:2013。此版本构成技术修订。与上一版相比，此版本包括以下重大技术变化：a) 与 IEC 60884-1 第四版保持一致。 [外文原描述]： IEC 60884-2-7:2025 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 60884-2-7:2025 EXV includes the content of the references made to IEC 60884-1:2022. IEC 60884-2-7:2025 applies to cord extension sets, rewirable and non-rewirable, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 16 A, intended for household and similar purposes, either indoors or outdoors. This document does not apply to cord extension sets with means for reeling. Cord extension sets intended to be used as socket-outlets for furniture are additionally covered by IEC 60884‑2‑8. This document also applies to cord extension sets which are intended to be used in a cable reel, and which therefore become cable reels with a detachable flexible cable. For the combination of the cord extension set, the reel requirements and tests of IEC 61242 apply in addition. Cord extension sets are suitable for use at ambient temperatures not normally exceeding +40 °C, but their average temperature over a period of 24 h does not exceed +35 °C, with a lower limit of the ambient air temperature of −5 °C. This second edition cancels and replaces the first edition published in 2011, and Amendment 1:2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) alignment to IEC 60884-1, fourth edition.