Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
文件核验信息（付费前可核对）
标准范围（官方英文摘要）
IEC 61643-22:2015 describes the principles for the selection, operation, location and coordination of SPDs connected to telecommunication and signalling networks with nominal system voltages up to 1 000 V r.m.s. a.c. and 1 500 V d.c. This standard also addresses SPDs that incorporate protection for signalling lines and power lines in the same enclosure (so called multiservice SPDs). This second edition cancels and replaces the first edition published in 2004. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Update the use of multiservice SPDs (Article 8);
- Comparison between SPD classification of IEC 61643-11 and IEC 61643-21 (7.3.3);
- Consideration of new transmission systems as PoE (Annex F);
- EMC requirements of SPDs (Annex G);
- Maintenance cycles of SPDs (Annex I).
Keywords: SPD, surge protective devices
标准信息
- 标准号
- IEC 61643-22:2015
- 英文标题
- Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
- 发布单位
- —
- 技术委员会
- TC 37/SC 37A
- 版本 / 版次
- 2.0
- 状态
- 现行
- 发布日期
- 2015
- ICS 分类
- 29.240.10 变电站、电涌放电器
- 页数
- 130 页
- 官方定价
- CHF 345
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