IEC 61643-351:2016
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)
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
English - French
28-10-2016
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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
IEC 61643-351:2016 defines test circuits and test methods for determining and verifying the SIT surge parameters. Preferred performance values for key parameters are given. Surge isolation transformers (SITs) are used for 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. SITs are applicable to components for surge protection against indirect and direct effects of lightning or other transient overvoltage. SITs are used to mitigate the onward propagation of common-mode voltage surges. This part of IEC 61643 does not cover SIT operation under differential-mode lightning surge conditions. Keywords: Surge isolation transformers (SITs)
| DevelopmentNote |
Stability Date: 2020. (10/2016)
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| DocumentType |
Standard
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| Pages |
54
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| PublisherName |
International Electrotechnical Committee
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| Status |
Current
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| Standards | Relationship |
| NEN EN IEC 61643-351 : 2017 | Identical |
| EN 61643-351:2017 | Identical |
| BS EN 61643-351:2017 | Identical |
| PN EN 61643-351 : 2017 | Identical |
| SN EN 61643-351 : 2017 | Identical |
| DIN EN 61643-351:2020 | Identical |
| VDE 0845-5-51:2020-04 | Identical |
| JIS C 5381-351:2019 | Identical |
| NF EN 61643-351 : 2017 | Identical |
| PNE-FprEN 61643-351 | Identical |
| CEI EN 61643-351 : 1ED 2017 | Identical |
| UNE-EN 61643-351:2017 | Identical |
| IEC 61643-352:2018 | Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs) |
| I.S. EN IEC 61643-352:2018 | COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 352: SELECTI AND APPLICATION PRINCIPLES FOR TELECOMMUNICATIONS AND SIGNALLIN NETWORK SURGE ISOLATION TRANSFORMERS (SITS) |
| EN IEC 61643-352:2018 | Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs) |
| BS EN IEC 61643-352:2018 | Components for low-voltage surge protection Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs) |
| IEC 60721-3-9:1993 | Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 9: Microclimates inside products |
| IEC 61558-2-4:2009 | Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers |
| ISO/IEC 11801:2002 | Information technology Generic cabling for customer premises |
| IEC 61558-2-6:2009 | Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers |
| IEC 61558-1:2017 | Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests |
| IEC 60076-1:2011 | Power transformers - Part 1: General |
| IEC 60068-2-2:2007 | Environmental testing - Part 2-2: Tests - Test B: Dry heat |
| IEC 60989:1991 | Separating transformers, autotransformers, variable transformersand reactors. |
| IEC 61340-4-8:2014 | Electrostatics - Part 4-8: Standard test methods for specific applications - Electrostatic discharge shielding - Bags |
| 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 60068-2-1:2007 | Environmental testing - Part 2-1: Tests - Test A: Cold |
| IEC 60060-1:2010 | High-voltage test techniques - Part 1: General definitions and test requirements |
| ISO/IEC/IEEE 8802-3:2017 | Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Specific requirements — Part 3: Standard for Ethernet |
| 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 |
| IEC TR 61340-1:2012 | Electrostatics - Part 1: Electrostatic phenomena - Principles and measurements |
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