BS EN 61000-4-5:2014+A1:2017 Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques. Surge immunity test
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BS EN 61000-4-5:2014+A1:2017

Amendment 1 - Electromagnetic compatibility (EMC). - Part 4-5: Testing and measurement techniques - Surge immunity test

Status : Current   Published : September 2014



What is this standard about?

Modern electronic components and equipment are very sensitive to electric and electromagnetic disturbances. This part of BS EN 61000 determines the reaction of equipment under test (EUT) to surge voltages caused by switching and lightning effects. 

Who is this standard for?

It will be used in the manufacturing and engineering sectors, specifically by:

  • Manufacturers, designers and users of electrical and electronic equipment and components
  • Test laboratories
  • Inspectors and quality assessors

Why should you use this standard?

Because it sets out a range of test levels to find out how equipment reacts in specified operational conditions to surge voltages caused by switching and lightning effects. The standard:

  • Defines the necessary test equipment – including wave generators and coupling/decoupling networks
  • Explains the test setup for tests applied to equipment under test (EUT) power ports, unshielded symmetrical/unsymmetrical interconnections and shielded lines
  • Specifies test procedures, laboratory reference conditions, the application of the surge in the laboratory and test reports

The use of protection which complies with BS EN 61000-4-5 ensures that equipment is reliable. Manufacturers and sellers thereby avoid costly returns and maintain brand image.

NOTE: This standard doesn’t test the capability of EUTs insulation to withstand high-voltage stress. Direct injections of lightning currents, i.e. direct lightning strikes, are not considered in this standard.

What’s changed since the last update?

This 2017 amendment corrects a problem that test laboratories and manufacturers were having with the 2014 version wherein some products wouldn’t power up through the power CDN in the standard and in some cases the inductance necessary was damaging products. This has been fixed by introducing a statement into clause 7.3 which allows surge tests with higher current rated CDNs and adding a new Annex I: Issues relating to powering EUTs having DC/DC converters at the input, which explains the problem in detail.

NOTE: This standard supersedes the un-amended version, BS EN 61000-4-5:2014 but the latter will not be withdrawn until 8 September 2020, during which time both versions of the standard will be current.

Standard NumberBS EN 61000-4-5:2014+A1:2017
TitleAmendment 1 - Electromagnetic compatibility (EMC). - Part 4-5: Testing and measurement techniques - Surge immunity test
Publication Date30 September 2014
Normative References(Required to achieve compliance to this standard)IEC 60050
Informative References(Provided for Information)HD 60364-4-444, IEC 60664-1, IEC 61643-21:2000, A2:2012, ITU-T K.44, EN 62305-1, IEC 61643, TS 61643-12, EN 60664-1, IEC 60364-4-44, A2:2013, IEEE Std 4-1995, TS 61643, A1:2009, IEC 60060-2, A1:2008, HD 60364-4-442, EN 61643, EN 61643-11, EN 60060-2, IEC 61643-11, EN 61643-21:2000, IEC 62305-1, IEC 61000-4-4, IEEE Std C62.45-2002, TR 61000-1-6:2012, EN 61000-4-4, IEC 61643-12:2020, BS IEC 61643-12:2020
International RelationshipsEN 61000-4-5:2014,EN 61000-4-5:2014/A1:2017,EN 62127-3:2007/A1:2013,IEC 61000-4-5:2014,IEC 61000-4-5:2014/AMD1:2017
Amended ByAmendment, February 2018
Draft Superseded By16/30348870 DC
DescriptorsCircuits, Electromagnetic fields, Measurement, Electrical equipment, Field strength (electric), Voltage, Surge protection, Magnetic fields, Electric power system disturbances, Electrical testing, Surges (electrical), Electromagnetic radiation, Overvoltage, Performance, Electromagnetic compatibility, Electronic equipment and components, Wave properties and phenomena, Noise (spurious signals), Electric fields
Title in FrenchCompatibilité électromagnétique (CEM) Techniques d'essai et de mesure. Essai d'immunité aux ondes de Choc
Title in GermanElektromagnetische Verträglichkeit (EMV) Prüf- und Messverfahren. Prüfung der Störfestigkeit gegen Stoßspannungen
ISBN978 0 580 95854 0
File Size3.859 MB

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