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BS EN IEC 61000-6-4:2019 Electromagnetic compatibility (EMC) - Generic standards. Emission standard for industrial environments, 2019
- National foreword
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- Figures [Go to Page]
- Figure 1 – Example of ports
- 3.2 Abbreviated terms
- 4 Conditions during testing
- Tables [Go to Page]
- Table 1 – Test arrangements of EUT
- 5 Product documentation
- 6 Applicability
- 7 Measurement uncertainty
- 8 Compliance with this document
- 9 Emission requirements [Go to Page]
- Table 2 – Required highest frequency for radiated measurement
- Table 3 – Requirements for radiated emissions – enclosure port
- Table 4 – Requirements for conducted emissions – low voltage AC mains port
- Table 5 – Requirements for conducted emissions – wired network port
- Annex A (informative) Testing of DC powered systems [Go to Page]
- Table A.1 – Proposed requirements for conducted emissions – DC power port
- Table A.2 – Conducted testing of DC powered equipment
- Annex B (informative) Further information on measurements using a FAR [Go to Page]
- B.1 General
- B.2 Analysis [Go to Page]
- B.2.1 Theoretical analysis of simple radiators
- Figure B.1 – Geometrical optics model for OATS measurements [Go to Page]
- B.2.2 Limitations with the basic model
- Figure B.2 – Field attenuation between two half-wave dipoles above ground plane with fixed transmit antenna height and variable receive antenna height
- Figure B.3 – Equivalent circuit diagram of a typical EUT
- Figure B.4 – 10 m distance, horizontal polarization, calculated differences for an electrically short straight wire above the ground plane on an OATS compared with a FAR (EOATS – EFAR)
- Figure B.5 – 10 m distance, vertical polarization, calculated differences for an electrically short straight wire above the ground plane on an OATS compared with a FAR (EOATS – EFAR)
- Figure B.6 – 3 m distance, horizontal polarization, calculated differences for an electrically short straight wire above the ground plane on an OATS compared with a FAR (EOATS – EFAR) [Go to Page]
- B.2.3 Measurements on an EUT
- Figure B.7 – 3 m distance, vertical polarization, calculated differences for an electrically short straight wire above the ground plane on an OATS compared with a FAR (EOATS – EFAR) [Go to Page]
- B.2.4 Derivation of limits
- B.3 Requirements
- Figure B.8 – Differences of the horizontal polarised emission of the small EUT with mains lead in the 3 m FARs and on 10 m OATS
- Table B.1 – Proposed requirements for radiated emissions, FAR
- Bibliography [Go to Page]