Recommendation ITU-T K.37 (01/2024) Low and high frequency electromagnetic compatibility (EMC) mitigation techniques for telecommunication installations and systems – Basic EMC Recommendation
Summary
History
FOREWORD
Table of Contents
Introduction
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 High frequency EMC
7 Low frequency EMC
8 Equipment specifications
9 Environment
     9.1 Distance to interference sources
     9.2 Distance to radio transmitters
     9.3 Earthing and bonding network
     9.4 a.c. power network and electrical equipment
     9.5 Materials and humidity
10 Installation
     10.1 Equipment
     10.2 Cabling
     10.3 Connectors
11 Working guidelines
     11.1 Restrictions to use disturbing equipment
     11.2 Avoiding ESD in maintenance and repair
12 Special mitigation guidelines
     12.1 Screening
          12.1.1 Screening (high frequency)
          12.1.2 Screening (low frequency)
     12.2 Filtering
          12.2.1 Filtering (high frequency)
          12.2.2 Filtering (low frequency)
     12.3 Common mode chokes
          12.3.1 Common mode chokes (high frequency)
          12.3.2 Common mode chokes (low frequency)
     12.4 Drainage coils (low frequency)
     12.5 Active filters (low frequency)
     12.6 Neutralizing transformers (low frequency)
     12.7 Hybrid solutions (low frequency)
     12.8 Isolation transformers (high and low frequency)
     12.9 Optical components (high and low frequency)
     12.10 Capacitors (high frequency)
Appendix I  Troubleshooting and fixing high frequency EMC problems
     I.1 Introduction
     I.2 Source verification
     I.3 Check-list for problem solution
Appendix II  Troubleshooting and fixing low frequency EMC problems
     II.1 Introduction
     II.2 Source verification
     II.3 Check-list for problem solution