BS EN IEC 61643-352:2018涵盖了以下浪涌隔离变压器（SIT）的应用: 用于电信变压器应用，信号电平高达400V峰值至峰值 峰这些变压器之间有或没有屏蔽，具有高额定冲击电压 输入和输出绕组。SIT是浪涌保护组件，用于 缓解共模电压浪涌的向前传播。本文件描述了 SITs的选择、应用原则和相关信息。本文件不包括 电力线通信变压器。交叉引用:IEC 61643-351IEC 61558-1EN 60721-3-9:1993EN 61558-1IEC 61643-21ISO/IEC 11801:2010ITU-T K.95IEEE 802.3EN 60064-1ITU-T K.44ITU-T K.66IEC 60064-1ITU-T K.21EN 61643-21IEEE PC62。69/D1IEC 61340-4-8:2014IEC 60068-2-1:2007EN 60076-1（IEC 60076-1:2011）ASEN 60065（IEC 60065:2001修改）EN 61340-4-8（IEC 61340-4-8:2014）ASEN 61558-2-6（IEC 61558-2-2009）ASIEC 60721- 3-9:1993IEC 61558-2-4:2009IEC 61558-2-6:2009EN 60068-2-2（IEC 60068-2-2007）ASIEC 60076-1:2011IEC TR 60664-2-1:2011EN 60068-2-1（IEC 60068-2-1:2007）ASIEC 60989:1991IEC 60068-2-2:2007 EN 61558-2-4（IEC 61558-2-4:2009）ASIEC 60065:2001购买本文件时可提供的所有现行修订均包括在购买本文件中。

BS EN IEC 61643-352:2018 covers the application of surge isolation transformers (SITs) that are used in telecommunication transformer applications with signal levels up to 400 V peak to peak. These transformers have a high rated impulse voltage with or without screen between the input and output windings. SITs are components for surge protection and are used to mitigate the onward propagation of common-mode voltage surges. This document describes SITs' selection, application principles and related information. This document does not cover power line communication transformers.Cross References:IEC 61643-351IEC 61558-1EN 60721-3-9:1993EN 61558-1IEC 61643-21ISO/IEC 11801:2010ITU-T K.95IEEE 802.3EN 60064-1ITU-T K.44ITU-T K.66IEC 60064-1ITU-T K.21EN 61643-21IEEE PC62.69/D1IEC 61340-4-8:2014IEC 60068-2-1:2007EN 60076-1 (IEC 60076-1:2011) ASEN 60065 (IEC 60065:2001 Modified)EN 61340-4-8 (IEC 61340-4-8:2014) ASEN 61558-2-6 (IEC 61558-2-6:2009) ASIEC 60721-3-9:1993IEC 61558-2-4:2009IEC 61558-2-6:2009EN 60068-2-2 (IEC 60068-2-2:2007) ASIEC 60076-1:2011IEC TR 60664-2-1:2011EN 60068-2-1 (IEC 60068-2-1:2007) ASIEC 60989:1991IEC 60068-2-2:2007EN 61558-2-4 (IEC 61558-2-4:2009) ASIEC 60065:2001All current amendments available at time of purchase are included with the purchase of this document.