1、BRITISH STANDARD BS EN 61000-2-10: 1999 IEC 61000-2-10: 1998 Electromagnetic compatibility (EMC) Part 2-10: Environment Description of HEMP environment Conducted disturbance The European Standard EN61000-2-10:1999 has the status of a British Standard ICS 33.100.10BSEN61000-2-10:1999 This British Sta
2、ndard, having been prepared under the directionof the Electrotechnical Sector Committee, was publishedunder the authority ofthe Standards Committee andcomes into effect on 15May1999 BSI 04-2000 ISBN 0 580 32560 1 National foreword This British Standard is the English language version of EN61000-2-10
3、:1999. It is identical with IEC61000-2-10:1998. The UK participation in its preparation was entrusted to Technical Committee GEL/210, Electromagnetic compatibility, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any
4、enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Att
5、ention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the B
6、SI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are respo
7、nsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 38, an inside back cover and a back cover. T
8、his standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN61000-2-10:1999 BSI 04-2000 i Contents Page National foreword Inside fro
9、nt cover Foreword 2 Text of EN 61000-2-10 5ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61000-2-10 February 1999 ICS 33.100.01 Descriptors: Electromagnetic compatibility, environments, pulses, electromagnetism, nuclear radiation, explosions, altitude, electromagnetic waves, radio dis
10、turbances English version Electromagnetic compatibility (EMC) Part 2-10: Environment Description of HEMP environment Conducted disturbance (IEC 61000-2-10:1998) Compatibilit lectromagntique (CEM) Partie 2-10: Environnement Description de lenvironnement IEMN-HA Perturbations conduites (CEI 61000-2-10
11、:1998) Elektromagnetische Vertrglichkeit (EMV) Teil 2-10: Umgebungsbedingungen Beschreibung der HEMP-Umgebung Leitungsgefhrte Strgren (IEC 61000-2-10:1998) This European Standard was approved by CENELEC on1999-01-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
12、 stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European S
13、tandard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the na
14、tional electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit
15、Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1999 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61000-2-10:1999 EEN61000-2-10:1
16、999 2 BSI 04-2000 Foreword The text of document77C/61/FDIS, future edition1 of IEC61000-2-10, prepared by SC77C, Immunity to high altitude nuclear electromagnetic pulse (HEMP), of IEC TC77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as E
17、N61000-2-10 on1999-01-01. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex A, Annex B, Annex C andAnnex D are informative. Annex ZA h
18、as been added by CENELEC. Endorsement notice The text of the International Standard IEC61000-2-10:1998 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 Introduction 5 1 Scope 5 2 Normative references 5 3 General 6 4 Definitions 6 5 Description of HEMP
19、 environment, conducted parameters 9 5.1 Introductory remarks 9 5.2 Early-time HEMP external conducted environment 10 5.3 Intermediate-time HEMP external conducted environment 11 5.4 Late-time HEMP external conducted environment 12 5.5 Antenna currents 14 5.6 HEMP internal conducted environments 18
20、Annex A (informative) Discussion of early-time HEMP coupling for long lines 20 Annex B (informative) Discussion of intermediate-time HEMP coupling for long lines 22 Annex C (informative) Responses of simple linear antennas to the IEC early-time HEMP environment 23 Annex D (informative) Measured cabl
21、e currents inside telephone buildings 37 Annex ZA (normative) Normative references to international publications with their corresponding European publications Inside back cover Figure 1 Geometry for the definition of polarization and of the angles of elevation and azimuth 6 Figure 2 Geometry for th
22、e definition of the plane wave 7 Figure 3 Geomagnetic dip angle 8 Figure 4 Three-phase line and equivalent circuit for computing late-time HEMP conducted current 13 Figure 5 A centre-loaded dipole antenna of length l and radius a, excited by an incident early-time HEMP field 15 Figure A.1 Variation
23、of peak coupled cable current versus local geomagnetic dip angle 20 Figure C.1 Illustration of the incident HEMP field 24 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1999-10-01 latest date by which the n
24、ational standards conflicting with the EN have to be withdrawn (dow) 2001-10-01EN61000-2-10:1999 BSI 04-2000 3 Page Figure C.2 The HEMP tangent radius R tdefining the illuminated region, shown as a function of burst height (HOB) 25 Figure C.3 Geometry of the monopole antenna 27 Figure C.4 Geometry o
25、f the dipole antenna 28 Figure C.5 Cumulative probability distributions for the peak responses for the1m vertical monopole antenna load currents and voltages 29 Figure C.6 Cumulative probability distributions for the peak responses for the3m vertical monopole antenna load currents and voltages 30 Fi
26、gure C.7 Cumulative probability distributions for the peak responses for the10m vertical monopole antenna load currents and voltages 31 Figure C.8 Cumulative probability distributions for the peak responses for the100m vertical monopole antenna load currents and voltages 32 Figure C.9 Cumulative pro
27、bability distributions for the peak responses for the1m horizontal dipole antenna load currents and voltages 33 Figure C.10 Cumulative probability distributions for the peak responses for the3m horizontal dipole antenna load currents and voltages 34 Figure C.11 Cumulative probability distributions f
28、or the peak responses for the10m horizontal dipole antenna load currents and voltages 35 Figure C.12 Cumulative probability distributions for the peak responses for the100m horizontal dipole antenna load current and voltages 36 Figure C.13 Plot of multiplicative correction factors for correcting the
29、 values of V oc , I sc , I Land V Lfor antennas having other L/a ratios 37 Table 1 Early-time HEMP conducted common-mode short-circuit currents including the time history and peak value I pkas a function of severity level, length L in metres and ground conductivity g 11 Table 2 Intermediate-time HEM
30、P conducted common-mode short-circuit currents including the time history and peak value I pkas a function of length L in metres and ground conductivity g 12 Page Table 3 Maximum peak electric dipole antenna load current versus frequency for antenna principal frequencies 16 Table 4 HEMP response lev
31、els for V ocfor the vertical monopole antenna 16 Table 5 HEMP response levels for I scfor the vertical monopole antenna 17 Table 6 HEMP response levels for I Lfor the loaded vertical monopole antenna 17 Table 7 HEMP response levels for V ocfor the horizontal dipole antenna 17 Table 8 HEMP response l
32、evels for I scfor the horizontal dipole antenna 18 Table 9 HEMP response levels for I Lfor the loaded horizontal dipole antenna 18 Table A.1 Rectified impulse (RI) and computed effective pulse widths for vertical polarization of the early-time HEMP for an elevated conductor (h = 10 m) 21 Table A.2 C
33、oupled early-time HEMP currents for a buried conductor (z = 1 m) 21 Table A.3 Waveform parameters for early-time HEMP buried conductor coupling (z = 1 m) 22 Table A.4 Average waveform parameters for early-time HEMP buried conductor currents 22 Table B.1 Coupled HEMP intermediate-time short-circuit c
34、urrents for an elevated conductor (h = 10 m) 22 Table B.2 Coupled HEMP intermediate-time short-circuit currents for a buried conductor (h = 1 m) 23 Table D.1 Estimated internal peak-to-peak cable currents (I pp ) from direct HEMP illumination (from D.1) 38 Table D.2 Damped sinusoid waveform characte
35、ristics for internal cable currents (measured) (from D.1) 384 blankEN61000-2-10:1999 BSI 04-2000 5 Introduction IEC61000 is published in separate parts according to the following structure: Each part is further subdivided into several parts, published either as International Standards or technical r
36、eports, some of which have already been published as sections. Others will be published with the part number followed by a dash and a second number identifying the subdivision. 1 Scope This International Standard defines the high-altitude electromagnetic pulse (HEMP) conducted environment that is on
37、e of the consequences of a high-altitude nuclear explosion. Those dealing with this subject consider two cases: high-altitude nuclear explosions; low-altitude nuclear explosions. For civil systems the most important case is the high-altitude nuclear explosion. In this case, the other effects of the
38、nuclear explosion: blast, ground shock, thermal and nuclear ionizing radiation are not present at the ground level. However, the electromagnetic pulse associated with the explosion may cause disruption of, and damage to, communication, electronic and electric power systems thereby upsetting the stab
39、ility of modern society. The object of this standard is to establish a common reference for the conducted HEMP environment in order to select realistic stresses to apply to victim equipment for evaluating their performance. 2 Normative references The following normative documents contain provisions
40、which, through reference in this text, constitute provisions of this part of IEC61000. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IEC61000 are encouraged to investigate the possibility of apply
41、ing the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60050(161):1990, International Electrotechnical Vocabulary (IEV) Chapter 161: Electromagnetic Compatibility. Part 1: General General cons
42、iderations (introduction, fundamental principles) Definitions, terminology Part 2: Environment Description of the environment Classification of the environment Compatibility levels Part 3: Limits Emission limits Immunity limits (insofar as these limits do not fall under the responsibilty of the prod
43、uct committees) Part 4: Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines Mitigation methods and devices Part 6: Generic standards Part 9: MiscellaneousEN61000-2-10:1999 6 BSI 04-2000 IEC 61000-2-9:1996
44、, Electromagnetic compatibility (EMC) Part 2: Environment Section 1: Description of HEMP environment Radiated disturbance Basic EMC publication. IEC 61000-4-24:1997, Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 24: Test methods for protective devices for HEM
45、P conducted disturbance Basic EMC publication. 3 General A high-altitude (above30km) nuclear burst produces three types of electromagnetic pulses which are observed on the earths surface: Historically most interest has been focused on the early-time HEMP which was previously referred to as simply HE
46、MP. Here we will use the term high-altitude EMP or HEMP to include all three types. The term NEMP 1)covers many categories of nuclear EMPs including those produced by surface bursts (SREMP) 2)or created on space systems (SGEMP) 3) . Because the HEMP is produced by a high-altitude detonation, we do n
47、ot observe other nuclear weapon environments such as gamma rays, heat and shock waves at the earths surface. HEMP was reported from high-altitude nuclear tests in the South Pacific by the US and over the USSR during the early1960s, producing effects on electronic equipment far from the burst locatio
48、n. This standard presents the conducted HEMP environment induced on metallic lines, such as cables or power lines, external and internal to installations, and external antennas. 4 Definitions For the purpose of this International Standard, the definitions given in IEC60050(161) apply, as well as the
49、 following definitions: early-time HEMP (fast); intermediate-time HEMP (medium); late-time HEMP (slow). 1) NEMP: Nuclear electromagnetic pulse. 2) SREMP: Source region EMP. 3) SGEMP: System generated EMP. Figure 1 Geometry for the definition of polarization and of the angles of elevation and azimuth EN61000-2-10:1999 BSI 04-2000 7 4.1 angle of elevation in the vertical plane, angle measured in the vertical plane betwe
