CEI EN 61643-351 : 1ED 2017
Current
The latest, up-to-date edition.
COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT)
24-01-2018
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 |
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