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BSI 23/30446820 DC 2023

BSI 23/30446820 DC 2023

$13.70

BS EN IEC 61000-5-6. Electromagnetic Compatibility (EMC) – Part 5-6. Installation and mitigation guidelines. Mitigation of external EM influences

Published By Publication Date Number of Pages
BSI 2023 74
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PDF Catalog

PDF Pages PDF Title
8 FOREWORD
10 INTRODUCTION
11 1 Scope
2 Normative references
12 3 Terms and definitions
16 4 Introduction and General Considerations
4.1 Introduction
17 4.2 General considerations
4.2.1 Elementary interference control
4.2.1.1 Shields and interfaces
18 5 Mitigation of radiated and conducted disturbances
5.1 Topological concepts
20 5.2 Mitigation needs
5.3 The general concept of enclosure
21 5.4 Interactions at the enclosure boundary
6 Shielding
6.1 General
22 6.2 Classification of protection zones
23 6.2.1 Zone 1 – Building shield
6.2.2 Zone 2 – Room shield
24 6.2.3 Zone 3 – Equipment shield
6.2.4 Zone 4 – Apparatus shield
6.3 Design principles for screening
6.3.1 General
6.3.2 Shielding effectiveness
25 6.3.3 Maintaining shielding effectiveness
26 6.4 Implementation of screening
6.4.1 Sensitive apparatus
27 6.4.2 Shielding of racks and chassis (zones 4/3 barrier)
6.4.3 Shielding of cabinets (zones 3/2 barrier)
6.4.4 Shielding of rooms (zones 2/1 barrier)
28 6.4.5 Shielding of buildings (zones 1/0 barrier)
6.4.6 Dealing with apertures
6.4.6.1 Honeycombs
29 6.4.6.2 Conductive gaskets
30 6.4.6.3 Gasket types and other materials
6.4.6.4 Gasket mounting
6.4.6.5 EMC sealants
7 Filters
7.1 General
31 7.2 Fundamental filter characteristics
7.2.1 Attenuation and insertion loss
33 7.2.2 Basic types of filters
7.3 Functional tasks
34 7.4 Additional filtering concerns
7.4.1 Technical aspects
35 7.4.2 Economic aspects
7.5 Selection criteria
7.5.1 Voltage rating
36 7.5.2 Current rating
7.5.3 Duty-cycle and overload operating conditions
7.5.4 Operating frequency and range of frequencies to be filtered
7.5.5 Voltage drop and signal loss
7.5.6 Ambient temperature range
7.5.7 Insertion loss and attenuation
37 7.5.8 Withstand voltage
7.5.9 Attenuation of HF transient disturbances
7.5.10 Leakage current to protective earthing conductor
38 7.5.11 Permissible reactive current
7.6 Filter installation
7.6.1 Installation and mounting techniques
39 7.6.2 Wiring
7.6.3 Installation of cabinet filters
40 7.7 Filter testing
7.7.1 General considerations
41 7.7.2 Insulation to earth and withstand voltage of installed filters
7.7.3 Insertion loss
7.7.4 Attenuation of HF transient disturbances
42 8 Decoupling devices
8.1 Isolation transformers
44 8.2 Motor-generator sets
8.3 Engine generators
8.4 Uninterruptible power supplies (UPS)
45 8.5 Optical links
9 Surge-protective devices
9.1 General
46 9.2 Direct equipment protection
47 9.3 Installation of multiple SPDs
48 9.4 Side-effects of uncoordinated cascades
9.5 Typical protective devices
9.5.1 Voltage-limiting type SPDs
9.5.2 Voltage-switching type SPDs
49 Bibliography
50 Annex A (informative) A Resilience based approach for the mitigation of external High Power Electromagnetic environments
A.1 Introduction
A.2 The Concept of Resilience
51 A.2.1 A Discussion on the Protection-lead Approach
52 A.2.2 The Benefits of a Resilience-based Approach
A.2.3 Affordability and Risk
53 A.2.4 Appropriate Application of a Resilience based approach
54 A.3 An EM Resilience Model and Framework
A.3.1 The Identify function
A.3.2 The Protect function
A.3.3 The Detect function
A.3.4 The Respond function
55 A.3.5 The Recover function
A.3.6 Adaptation of the NIST framework to HPEM resilience
A.4 HPEM Resilience Framework Implementation
A.4.1 Introduction
A.4.2 Identify
57 A.4.2.1 Discussion
A.4.3 Protect
58 9.5.3 Discussion
59 A.4.3.1.1 Protection technologies relevant to a resilience approach
A.4.3.1.1.1 Shielded cables
A.4.3.1.1.2 Shielded cable layout
A.4.3.1.1.3 Shielded cabinets
60 A.4.3.1.1.4 Combination filters
A.4.3.1.1.5 HPEM Protection/ Resilience of Ancillary systems
61 A.4.3.1.2 HPEM Protection to enable or facilitate response and recovery
A.4.4 Detect
62 A.4.4.1 Discussion
A.4.4.1.1 Forecasting and warning
63 A.4.4.1.2 Requirements and Technology for HPEM detection
A.4.4.1.2.1 RF receivers
A.4.4.1.2.2 Advantageous use of Ubiquitous receiver technology
A.4.4.1.2.3 Use of software to correlate effect to an HPEM disturbance
A.4.4.1.2.4 Electromagnetic Field (EMF) detectors
A.4.4.1.2.5 Electro-optic devices
64 A.4.4.1.2.6 Other RF Transducers
65 A.4.4.1.3 Examples of HPEM Detection Solutions
A.4.4.1.3.1 HPM detector, TNO, The Netherlands
66 A.4.4.1.3.2 EM Inferential-Detector system, Emprimus, USA
A.4.4.1.3.3 IEMI Detector system, Fraunhofer INT, Germany
67 A.4.4.1.3.4 Norms detector, China
A.4.4.1.3.5 TOTEM Detector system, QinetiQ Ltd., UK
68 A.4.4.1.4 Challenges for HPEM Detection
A.4.4.1.4.1 False Alarms
A.4.4.1.4.2 Detection threshold setting
A.4.4.1.4.3 Detector location and orientation:
69 A.4.4.2 Summary Recommendations
70 A.4.5 Respond
A.4.5.1 Discussion
A.4.6 Recover
71 A.4.6.1 Discussion
A.5 Summary
A.6 References

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