标准摘要
[中文适用范围]： 本部分 IEC 61557 规定了用于测试 TT、TN 和 IT 系统中剩余电流保护装置 (RCD) 定期断开保护措施有效性的测量设备的要求。 本部分 IEC 61557 规定了用于测试 TT、TN 和 IT 系统中安装的剩余电流装置 (RCD) 保护措施有效性的测量设备的要求。 本文件的目的不是根据其产品标准验证 RCD。 注：适用于 RCD 时间和电流的脱扣测试列于附录 A 表 A.1 中。 [外文原描述]： IEC 61557-6:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 61557-6:2019 specifies the requirements applicable to measuring equipment for testing the effectiveness of protective measures of residual current devices (RCD) installed in TT, TN and IT systems. It is not the purpose of this document to verify the RCD according to their product standards. IEC 61557-6:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of requirements for testing a new type of RCD; b) addition of requirements for type B RCDs (former Annex B); c) addition of new Annex B on recommended tripping times; d) alignment of the structure with that of the whole IEC 61557 series.
英文名称Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems