Name: CEI EN 61643-351 : 1ED 2017
Brand: CEI

COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT)

Published date

24-01-2018

Publisher

Comitato Elettrotecnico Italiano

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols, abbreviations and acronyms
4 Service conditions
5 SIT surge conditions
6 Characteristics
7 Ratings
8 Identification
Annex A (informative) - 1,2/50 impulse
Bibliography
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications

Pertains to signal transformer applications with signal levels up to 400 V peak to peak. SITs are transformers, with or without an internal-winding screen, with a rated impulse withstand voltage greater than the peak voltage of the expected common-mode surge environment.

Committee	CT 37
DevelopmentNote	Classificazione CEI 37-19. (01/2018)
DocumentType	Standard
PublisherName	Comitato Elettrotecnico Italiano
Status	Current

Standards	Relationship
IEC 61643-351:2016	Identical
EN 61643-351:2017	Identical

IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV	Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations
IEC TR 60664-2-1:2011	Insulation coordination for equipment within low-voltage systems - Part 2-1: Application guide - Explanation of the application of the IEC 60664 series, dimensioning examples and dielectric testing
EN 60721-3-3 : 95 AMD 2 97	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - STATIONARY USE AT WEATHER-PROTECTED LOCATIONS