标准摘要
[中文适用范围]： IEC 61643 的这一部分涵盖了浪涌隔离变压器 (SIT) 的应用，这些变压器用于信号电平峰峰值高达 400 V 的电信变压器应用。这些变压器具有高额定脉冲电压，输入和输出绕组之间有或没有屏蔽。 SIT 是浪涌保护组件，用于减轻共模电压浪涌的向前传播。本文件介绍了SIT的选择@应用原则和相关信息。本文件不涵盖电力线通信变压器。 [外文原描述]： 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.
英文名称Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)