BS EN 61643-351:2017
Current
The latest, up-to-date edition.
Components for low-voltage surge protective devices Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
Hardcopy , PDF
English
28-02-2017
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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
Annex ZA (normative) - Normative references to
international publications with their
corresponding European publications
Specifies test circuits and test methods for determining and verifying the SIT surge parameters.
| Committee |
PEL/37
|
| DevelopmentNote |
Supersedes 14/30297601 DC. (02/2017)
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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)
| Standards | Relationship |
| EN 61643-351:2017 | Identical |
| IEC 61643-351:2016 | Identical |
| EN 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 |
| 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 |
| EN 60068-2-1:2007 | Environmental testing - Part 2-1: Tests - Test A: Cold |
| 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 |
| EN 61558-1:2005/A1:2009 | SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 1: GENERAL REQUIREMENTS AND TESTS |
| EN 60068-2-2:2007 | Environmental testing - Part 2-2: Tests - Test B: Dry heat |
| EN 60721-3-9:1993/A1:1995 | CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 9: MICROCLIMATES INSIDE PRODUCTS |
| EN 60060-1:2010 | High-voltage test techniques - Part 1: General definitions and test requirements |
| 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. |
| EN 60076-1:2011 | POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011) |
| 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 |
| EN 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 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 |
| EN 61340-4-8:2015 | Electrostatics - Part 4-8: Standard test methods for specific applications - Electrostatic discharge shielding - Bags |
| 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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