Cover DIN EN 61643-351 VDE 0845-5-51:2020-04

DIN EN 61643-351 VDE 0845-5-51:2020-04

Components for low-voltage surge protective devices

Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)

(IEC 61643-351:2016); German version EN 61643-351:2017
Class/Status: Standard, valid
Released: 2020-04
VDE Art. No.: 0800667

This standard contains the German version of the European Standard EN 61643-351 and is identical with the International Standard IEC 61643-351. It describes performance requirements and test circuits and methods for surge isolation tranformers (SIT) which are used in communication or signalling networks and consist of an isolation transformer with or without an internal winding screen. The requirements and methods are concerned with the service and overvoltage conditions for surge isolation tranformers and serve for the verification of their essential electrical characteristics.