BS EN 62561-3:2017
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Lightning protection system components (LPSC) – Requirements for isolating spark gaps (ISG)
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 30 |
This part of IEC 62561 specifies the requirements and tests for isolating spark gaps (ISG) for lightning protection systems.
ISGs can be used to indirectly bond a lightning protection system to other nearby metalwork where a direct bond is not permissible for functional reasons.
Typical applications include the connection to
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earth-termination systems of power installations,
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earth-termination systems of telecommunication systems,
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auxiliary earth electrodes of voltage-operated, earth fault circuit breakers,
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rail earth electrode of power and DC railways,
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measuring earth electrodes for laboratories,
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installations with cathodic protection and stray current systems,
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service entry masts for low-voltage overhead cables,
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bypassing insulated flanges and insulated couplings of pipelines.
This does not cover applications where follow currents occur.
Lightning protection system components (LPSC) can also be suitable for use in hazardous conditions such as fire and explosive atmosphere. Due regard will be taken of the extra requirements necessary for the components to be installed in such conditions.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | CONTENTS |
| 9 | FOREWORD |
| 11 | INTRODUCTION |
| 12 | 1 Scope 2 Normative references |
| 13 | 3 Terms and definitions |
| 14 | 4 Classification 4.1 According to ISGs capability to withstand lightning current 4.2 According to ISGs location installation |
| 15 | 5 Requirements 5.1 General 5.2 Environmental requirements 5.3 Installation instructions 5.4 Lightning current carrying capability 5.5 Rated impulse sparkover voltage 5.6 Rated withstand voltage 5.6.1 Rated DC withstand voltage 5.6.2 Rated power frequency withstand voltage 5.7 Isolation resistance |
| 16 | 5.8 Marking 5.9 UV (ultraviolet) resistance 6 Tests 6.1 General conditions for tests |
| 17 | 6.2 UV (ultraviolet) light test 6.3 Resistance tests to corrosion 6.4 Mechanical tests |
| 18 | Figure 1 – Pendulum hammer test apparatus |
| 19 | 6.5 Electrical tests 6.5.1 Isolation resistance 6.5.2 Withstand voltage |
| 20 | 6.5.3 Rated impulse sparkover voltage 6.5.4 Lightning current Table 1 – Lightning impulse current (Iimp) parameters |
| 21 | 6.6 Installation instructions 6.6.1 General conditions for tests 6.6.2 Acceptance criteria 6.7 Marking test 6.7.1 General conditions for tests 6.7.2 Acceptance criteria 7 Electromagnetic compatibility (EMC) 8 Structure and content of the test report 8.1 General |
| 22 | 8.2 Report identification 8.3 Specimen description 8.4 Standards and references 8.5 Test procedure |
| 23 | 8.6 Testing equipment description 8.7 Measuring instruments description 8.8 Results and parameters recorded 8.9 Statement of pass/fail |
| 24 | Annex A (normative)Flow chart of tests |
| 25 | Figure A.1 – Flow chart of the sequence of tests for ISGs |
| 26 | Annex B (normative)Environmental test for isolating spark gaps B.1 General B.2 Salt mist treatment B.3 Humid sulphurous atmosphere treatment B.4 Ammonia atmosphere treatment |
| 27 | Annex C (normative)Environmental test for outdoor isolating spark gaps – Resistance to ultraviolet light C.1 General C.2 The tests C.3 First alternative test to C.2 C.4 Second alternative test to C.2 |
| 28 | Bibliography |
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