EN 61000-4-2:1995/A2:2001

SLOVENSKI STANDARD
01-maj-2002
Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 2: Electrostatic discharge immunity test – Basic publication;
Amendment 2 (IEC 61000-4-2:1995/A2:2000)
Electromagnetic compatibility (EMC) -- Part 4-2: Testing and measurement techniques -
Electrostatic discharge immunity test
Elektromagnetische Verträglichkeit (EMV) -- Teil 4-2: Prüf- und Meßverfahren -
Störfestigkeit gegen die Entladung statischer Elektrizität
Compatibilité électromagnétique (CEM) -- Partie 4-2: Techniques d'essai et de mesure -
Essai d'immunité aux décharges électrostatiques
Ta slovenski standard je istoveten z: EN 61000-4-2:1995/A2:2001
ICS:
33.100.20 Imunost Immunity
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61000-4-2/A2
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2001
ICS 33.100.20
English version
Electromagnetic compatibility (EMC)
Part 4-2: Testing and measurement techniques -
Electrostatic discharge immunity test
(IEC 61000-4-2:1995/A2:2000)
Compatibilité électromagnétique (CEM) Elektromagnetische Verträglichkeit (EMV)
Partie 4-2: Techniques d'essai Teil 4-2: Prüf- und Meßverfahren -
et de mesure - Störfestigkeit gegen die Entladung
Essais d'immunité aux décharges statischer Elektrizität
électrostatiques (IEC 61000-4-2:1995/A2:2000)
(CEI 61000-4-2:1995/A2:2000)
This amendment A2 modifies the European Standard EN 61000-4-2:1995; it was approved by
CENELEC on 2000-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal
Regulations which stipulate the conditions for giving this amendment 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 amendment 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 national 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
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61000-4-2:1995/A2:2001 E

Foreword
The text of documents 77B/291+292/FDIS, future amendment 2 to IEC 61000-4-2:1995, prepared by
SC 77B, High-frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to
the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 61000-4-
2:1995 on 2000-12-01.
The following dates were fixed:
– latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2001-09-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2003-12-01
__________
Endorsement notice
The text of amendment 2:2000 to the International Standard IEC 61000-4-2:1995 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
NORME CEI
INTERNATIONALE IEC
61000-4-2
INTERNATIONAL
STANDARD
AMENDEMENT 2
AMENDMENT 2
2000-11
PUBLICATION FONDAMENTALE EN CEM
BASIC EMC PUBLICATION
Amendement 2
Compatibilité électromagnétique (CEM) –
Partie 4-2:
Techniques d’essai et de mesure –
Essai d’immunité aux décharges électrostatiques
Amendment 2
Electromagnetic compatibility (EMC) –
Part 4-2:
Testing and measurement techniques –
Electrostatic discharge immunity test
 IEC 2000 Droits de reproduction réservés  Copyright - all rights reserved
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Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
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Commission Electrotechnique Internationale
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PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

61000-4-2 Amend. 2  IEC:2000 – 3 –
FOREWORD
This amendment has been prepared by subcommittee 77B: High frequency phenomena, of
IEC technical committee 77: Electromagnetic compatibility.
The text of this amendment is based on the following documents:
FDIS Reports on voting
77B/291+292/FDIS 77B/298+299/RVD
Full information on the voting for the approval of this amendment can be found in the reports
on voting indicated in the above table.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until 2002. At this date, the publication will be
reconfirmed;
withdrawn;
replaced by a revised edition, or
amended.
_____________
Page 25
Add, after subclause 7.1.2, the following new subclause:
7.1.3 Test method for ungrounded equipment
The test method described in this subclause is applicable to equipment or part(s) of
equipment whose installation specifications or design preclude connection to any grounding
system. Equipment, or parts thereof, includes portable, battery-operated and double-insulated
equipment (class II equipment).
Rationale: Ungrounded equipment, or ungrounded part(s) of equipment, cannot discharge
itself similarly to class I mains-supplied equipment. If the charge is not removed before the
next ESD pulse is applied, it is possible that the EUT or part(s) of the EUT be stressed up to
twice the intended test voltage. Therefore, double-insulated equipment could be charged at
an unrealistically high charge, by accumulating several ESD discharges on the capacitance of
the class II insulation, and then discharge at the breakdown voltage of the insulation with a
much higher energy.
The general test set-up shall be identical to the ones described in 7.1.1 and 7.1.2
respectively.
To simulate a single ESD event (either by air or by contact discharge), the charge on the EUT
shall be removed prior to each applied ESD pulse.
The charge on the metallic point or part to which the ESD pulse is to be applied, for example,
connector shells, battery charge pins, metallic antennae, shall be removed prior to each
applied ESD test pulse.
61000-4-2 Amend. 2  IEC:2000 – 5 –
When one or several metallic accessible parts are subject to the ESD test, the charge shall be
removed from the point where the ESD pulse is to be applied, as no guarantee can be given
about the resistance between this and other accessible points on the product.
A cable with 470 kΩ bleeder resistors, similar to the one used with the horizontal and vertical
coupling planes, shall be used; see 7.1.
As the capacitance between EUT and HCP (table-top) and between EUT and GRP (floor-
standing) is determined by the size of the EUT, the cable with bleeder resistors may remain
installed during the ESD test when functionally allowed. In the discharge cable, one resistor
shall be connected as close as possible, preferably less than 20 mm from the EUT test point.
The second resistor shall be connected near the end of the cable attached to the HCP for
table-top equipment (see figure 8), or GRP for floor-standing equipment (see figure 9).
The presence of the cable with the bleeder resistors can influence the test results of some
equipment. In case of dispute, a test with the cable disconnected during the ESD pulse takes
pre
...