BSI PD IEC/TR 61000-2-5:2011:2013 Edition
$215.11
Electromagnetic compatibility (EMC) – Environment. Description and classification of electromagnetic environments
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 130 |
Knowledge of the electromagnetic environment that exists at locations where electrical and electronic equipment and systems are intended to be operated is an essential precondition in the process of achieving electromagnetic compatibility. This knowledge can be obtained by various approaches, including a site survey of an intended location, the technical assessment of the equipment and system as well as the general literature.
This part of IEC 61000
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introduces the concept of disturbance degrees and defines these for each electromagnetic phenomena,
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classifies into various location classes and describes them by means of attributes,
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provides background information on the different electromagnetic phenomena that may exist within the environment and
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compiles tables of compatibility levels for electromagnetic phenomena that are considered to be relevant for those location classes.
This part of IEC 61000 is intended for guidance for those who are in charge of considering and developing immunity requirements. It also gives basic guidance for the selection of immunity levels. The data are applicable to any item of electrical or electronic equipment, sub-system or system that operates in one of the locations as considered in this Technical Report.
NOTE 1 It should be noted that immunity requirements and immunity levels determined for items of equipment which are intended to be used at a certain location class are not inevitably bound to the electromagneticenvironment present at the location, but also to requirements of the equipment itself and the application in which it is used (e.g. when taking into account requirements regarding availability, reliability or safety). These could lead to more stringent requirements with respect to immunity levels or with respect to applicable performance criteria. These levels may also be established for more general purposes such as in generic and product standards, taking into account statistical and economic aspects as well as common experience in certain application fields.
NOTE 2 Electromagnetic phenomena in general show a broad range of parameters and characteristics and hence cannot be related one-to-one to standardized immunity tests which basically reflect the impact of electromagnetic phenomena by a well described test set-up. Nonetheless, this report follows an approach to correlate electromagnetic phenomena and standardized immunity tests up to a certain extent. This might allow users of this report to partly take into account standardized immunity tests such as given for example in the IEC 61000-4 series, when specifying immunity requirements.
The descriptions of electromagnetic environments in this report are predominantly generic ones, taking into account the characteristics of the location classes under consideration. Hence, it should be kept in mind that there might be locations for which a more specific description is required in order to conclude on immunity requirements applicable for those specific locations.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | English CONTENTS |
| 9 | FOREWORD |
| 11 | 1 Scope and object 2 Normative references |
| 14 | 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions |
| 19 | 3.2 Abbreviations |
| 23 | 4 User’s guide for this report 4.1 Approach |
| 24 | Figures Figure 1 – Schematic of the two-step approach used for classification with phenomenon-oriented input tables and location-oriented output tables |
| 25 | 4.2 Rationale for classification system Figure 2 – Ports of entry (POEs) of electromagnetic disturbances into equipment |
| 26 | 4.3 Electromagnetic environment phenomena 4.4 Simplification of the electromagnetic environment database |
| 27 | Tables Table 1 – Principal phenomena causing electromagnetic disturbances |
| 30 | 5 Low-frequency electromagnetic phenomena 5.1 Conducted low-frequency phenomena |
| 32 | Table 2 – Disturbance degrees and levels for harmonic voltages in power supply networks (in percentage to fundamental voltage, Un/U1) |
| 33 | Figure 3 – Typical voltage waveforms for dip and interruption (10 ms/horizontal division) Table 3 – Disturbance degrees and levels for voltage changes within normal operating range |
| 34 | Table 4 – Disturbance degrees and levels for voltage unbalance Table 5 – Disturbance degrees and levels for power frequency variation |
| 35 | Figure 4 – Typical configuration of the converter in a PDS |
| 36 | Figure 5 – Voltage and current waveforms of each PDS portion(1 ms/horizontal division) Figure 6 – Measured common mode voltage at the input terminal of a converter |
| 37 | Table 6 – Disturbance degrees and levels for common mode voltages |
| 38 | Table 7 – Disturbance degrees and levels for signalling voltages in power systems (in per cent of nominal voltage) |
| 39 | 5.2 Radiated low-frequency phenomena Table 8 – Disturbance degrees and levels for low-frequency, common mode induced voltages in signal and control cables |
| 40 | Table 9 – Disturbance degrees and levels for low-frequency magnetic fieldsat various frequencies |
| 41 | Table 10 – Disturbance degrees and levels for low-frequency electric fields |
| 42 | 6 High-frequency electromagnetic phenomena 6.1 Conducted high-frequency phenomena |
| 44 | Table 11 – Disturbance degrees and levels of induced CW voltages with respect to reference ground |
| 46 | Table 12 – Disturbance degrees and levels for conducted unidirectional transients in low-voltage AC power systems |
| 47 | 6.2 Radiated high frequency phenomena Table 13 – Disturbance degrees and levels for conducted oscillatory transientsin low-voltage AC power systems |
| 48 | Table 14 – Radiation sources |
| 49 | Table 15 – Disturbance degrees and levels for radiated continuous oscillatory disturbances (in V/m, rms) and distance to source (in m) |
| 50 | Table 16 – Disturbance degrees and levels for modulated radiationdisturbances (in V/m, rms) and distance to source (in m),Amateur radio bands below 30 MHz |
| 51 | Table 17 – Disturbance degrees and levels for modulated radiation disturbances (in V/m, rms) and distance to source (in m), 27 MHz CB band |
| 52 | Table 18 – Disturbance degrees and levels for analoguecommunication services below 30 MHz |
| 53 | Table 19 – Disturbance degrees and levels for modulated radiation (analogue communication services above 30 MHz) disturbances (in V/m) and distance to source (m) |
| 54 | Table 20 – Disturbance degrees and levels for modulated radiation (mobile and portable phones) disturbances (in V/m, rms) and distance to source (in m) |
| 55 | Table 21 – Disturbance degrees and levels for modulated radiation (base stations) disturbances (in V/m, rms) and distance to source (in m) |
| 56 | Table 22 – Disturbance degrees and levels for modulated radiation (medical and biological telemetry items) disturbances (in V/m, rms) and distance to source (in m) |
| 57 | Table 23 – Disturbance degrees and levels for modulated radiation (unlicensed radio services) disturbances (in V/m, rms) and distance to source (in m) (1) |
| 58 | Table 24 – Disturbance degrees and levels for modulated radiation (unlicensed radio services) disturbances (in V/m, rms) and distance to source (in m) (2) |
| 59 | Table 25 – Disturbance degrees and levels for modulated radiation (amateur radio bands above 30 MHz) disturbances (in V/m, rms) and distance to source (in m) |
| 60 | Table 26 – Disturbance degrees and levels for modulated radiation (paging service base station) disturbances (in V/m, rms) and distance to source (in m) Table 27 – Disturbance degrees and levels for modulated radiation (other RF items) disturbances (in V/m, rms) and distance to source (in m) (1) |
| 61 | Table 28 – Disturbance degrees and levels for modulated radiation (other RF items) disturbances (in V/m, rms) and distance to source (in m) (2) Table 29 – Disturbance degrees and levels for modulated radiation (other RF items) disturbances (in V/m, rms) and distance to source (in m) (3) |
| 62 | Table 30 – Disturbance degrees and levels for modulated radiation (other RF items) disturbances (in V/m, rms) and distance to source (in m) (4) |
| 63 | Table 31 – Disturbance degrees and levels for modulated radiation (other RF items) disturbances (in V/m, rms) and distance to source (in m) (5) |
| 64 | Table 32 – Disturbance degrees and levels for modulated radiation (other RF items) disturbances (in V/m, Pk) and distance to source (in m) (6) |
| 65 | Table 33 – Disturbance degrees and levels for modulated radiation (RFID and railway transponder systems) disturbances (electric field in V/m, rms) and distance to source (in m) |
| 66 | Table 34 – Disturbance degrees and levels for modulated radiation(RFID and railway transponder systems) disturbances (magnetic field in µ A/m, rms) and distance to source (in m) |
| 67 | Table 35 – Disturbance degrees and levels for radiated pulsed disturbances (rate of rise) and distance to source (in m) |
| 68 | 7 Electrostatic discharge 7.1 General 7.2 ESD currents Table 36 – Disturbance degrees and levels for pulsed radiation (RADAR systems) disturbances (electric field in V/m, Pk) and distance to source (in m) |
| 69 | 7.3 Fields produced by ESD currents Table 37 – Disturbance degrees and levels for pulsed disturbances(rate of rise) caused by ESD Table 38 – Disturbance degrees and levels for radiated field gradients caused by ESD |
| 70 | 8 Classification of environments 8.1 General 8.2 Location classes |
| 71 | Figure 7 – Concept of location classes |
| 72 | 8.3 Residential location class |
| 73 | Table 39 – Exemplary equipment present in the residential location class |
| 75 | Table 40 – Attributes of the residential location class |
| 76 | 8.4 Commercial/public location class |
| 78 | Table 41 – Attributes of various types of the commercial/public location class |
| 79 | 8.5 Industrial location class |
| 82 | Table 42 – Attributes of various types of the industrial location class |
| 83 | 8.6 Types of power supply networks |
| 84 | Figure 8 – Situation for TN-C power installation systems |
| 85 | 8.7 Alterations in electromagnetic environments 8.8 Further conducted electromagnetic phenomena Figure 9 – Situation for TN-S power installation systems |
| 87 | 8.9 Mitigation aspects |
| 88 | 8.10 Description of location classes with regard to the requirements of EMC basic standards |
| 89 | Table 43 – Overview of phenomena versus basic standard, related table and chapter |
| 90 | 9 Principles of the selection of immunity levels 9.1 Approach |
| 91 | 9.2 Uncertainties 9.3 Dealing with high density sources |
| 92 | 9.4 Criticality criteria |
| 93 | 10 Disturbance levels of the various location classes |
| 94 | Annex A (informative) Compatibility levels/disturbance levels for location classes |
| 95 | Table A.1 – Disturbance levels in the residential location class |
| 98 | Table A.2 – Disturbance levels in the commercial/public location class |
| 101 | Table A.3 – Disturbance levels in the industrial location class |
| 104 | Annex B (informative) Radiated continuous disturbances Figure B.1c – Typical waweform of a radiated disturbance with an AM signalFigure B.1 – Typical waveforms for radiated disturbances |
| 105 | Table B.1 – Examples of field strengths from authorized transmitters |
| 106 | Table B.2 – Specifications of mobile and portable units Table B.3 – Specifications of base stations |
| 107 | Table B.4 – Specification of other typical RF items Table B.5 – Data regarding RFID technology |
| 108 | Table B.6 – Frequency allocations of TETRA system (in Europe) Table B.7 – Amateur radiofrequencies (ITU region 1-3) |
| 111 | Annex C (informative) Review of the historical assignment of radiated disturbance degrees Table C.1 – Radiated disturbance degrees defined in Edition 1 |
| 112 | Figure C.1 – Problem Geometry |
| 117 | Annex D (informative) Radiated pulsed disturbances Figure D.1 – The measured electric field and the electric field derivativefrom a cloud to ground lightning strike measured at a distance of 30 m |
| 118 | Figure D.2 – The measured electric field from an electrostatic discharge event at a distance of 0,1 m Figure D.3 – The measured magnetic field (two measurements) from an electrostatic discharge event at a distance of 0,1 m |
| 119 | Figure D.4 – The measured electric field in kV/m vs. time in microseconds in a 500 kV power substation |
| 120 | Table D.1 – Data regarding RADAR systems |
| 121 | Table D.2 – Examples for civil RADAR systems |
| 122 | Annex E (informative) Power line telecommunications (PLT) |
| 124 | Bibliography |
