EN 61340-4-7:2017
(Main)Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization
Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization
IEC 61340-4-7:2017 provides test methods and procedures for evaluating and selecting air ionization equipment and systems (ionizers). This document establishes measurement techniques, under specified conditions, to determine offset voltage (ion balance) and decay (charge neutralization) time for ionizers. This document does not include measurements of electromagnetic interference (EMI), or the use of ionizers in connection with ordnance, flammables, explosive items or electrically initiated explosive devices. As contained in this document, the test methods and test conditions can be used by manufacturers of ionizers to provide performance data describing their products. Users of ionizers are urged to modify the test methods and test conditions for their specific application in order to qualify ionizers for use, or to make periodic verifications of ionizer performance. The user will decide the extent of the data required for each application. This edition includes the following significant technical changes with respect to the previous edition: - the use of contacting plate voltage measurements in addition to the previous non-contacting plate voltage measurements has been added. Charged plate monitors (CPMs) using this technology have been in use in the industry for many years.
Elektrostatik - Teil 4-7: Standard-Prüfverfahren für spezielle Anwendungen – Ionisation
Électrostatique - Partie 4-7: Méthodes d'essai normalisées pour des applications spécifiques - Ionisation
L'IEC 61340-4-7:2017 fournit des méthodes et des modes opératoires d'essai pour évaluer et choisir le matériel et les systèmes d'ionisation de l'air (ioniseurs). Cette norme établit des techniques de mesure, dans des conditions spécifiées, destinées à déterminer la tension de décalage (équilibre ionique) et le temps de décroissance (neutralisation des charges) pour les ioniseurs. Le présent document ne couvre pas les mesures des interférences électromagnétiques (EMI) ni l'utilisation d'ioniseurs en relation avec des éléments pyrotechniques, inflammables, explosifs ou des appareils explosifs amorcés électriquement. Les méthodes d'essai et les conditions d'essai contenues dans le présent document peuvent être utilisées telles quelles par les fabricants d'ioniseurs pour fournir des données de performance décrivant leurs produits. Les utilisateurs d'ioniseurs sont incités à modifier les méthodes d'essai et les conditions d'essai de leur application spécifique afin de qualifier les ioniseurs pour l'utilisation ou d'effectuer des vérifications périodiques de la performance des ioniseurs. L'utilisateur décidera de la quantité de données exigées pour chaque application. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - les mesures de la tension de la plaque avec contact ont été ajoutées aux mesures de la tension de la plaque sans contact. Les dispositifs de surveillance à plaque de charge (CPM) qui utilisent cette technologie sont employés dans l'industrie depuis de nombreuses années.
Elektrostatika - 4-7. del: Standardne preskusne metode za posebno uporabo - Ionizacija (IEC 61340-4-7:2017)
Ta del standarda IEC 61340 podaja preskusne metode in postopke za vrednotenje ter izbiranje opreme in sistemov za ionizacijo zraka (ionizatorjev).
Ta dokument vzpostavlja merilne tehnike pod določenimi pogoji za določanje napetostnega premika (ionsko ravnovesje) in časa upadanja (nevtralizacija naboja) za ionizatorje.
Ta dokument ne vključuje meritev elektromagnetnih motenj (EMI) ali uporabe ionizatorjev v zvezi z ubojnimi sredstvi, vnetljivimi snovmi, eksplozivnimi predmeti ali elektronsko sproženim eksplozivnimi napravami.
Kot je zapisano v tem dokumentu, lahko preskusne metode in preskusne pogoje uporabljajo proizvajalci ionizatorjev, da podajo podatke o delovanju, ki opisujejo njihove proizvode. Uporabnike ionizatorjev se spodbuja, da prilagodijo preskusne metode in preskusne pogoje za svojo posebno uporabo, kvalificirajo ionizatorje za uporabo ali opravljajo redne preglede delovanja ionizatorjev.
Uporabnik določi obseg podatkov, potrebnih za vsako uporabo.
POZOR: S postopki in opremo, opisanimi v tem dokumentu, je lahko osebje izpostavljeno nevarnim električnim in neelektričnim pogojem. Uporabniki tega dokumenta so odgovorni za izbiro opreme, ki je v skladu z veljavnimi zakoni, regulativnimi kodeksi ter zunanjimi in notranjimi pravilniki. Uporabniki morajo upoštevati, da ta dokument ne more nadomestiti nobenih zahtev glede varnosti osebja.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2017
Elektrostatika - 4-7. del: Standardne preskusne metode za posebno uporabo -
Ionizacija (IEC 61340-4-7:2017)
Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization (IEC
61340-4-7:2017)
Electrostatique - Partie 4-7: Méthodes d'essai normalisées pour des applications
spécifiques - Ionisation (IEC 61340-4-7:2017)
Ta slovenski standard je istoveten z: EN 61340-4-7:2017
ICS:
17.220.99 Drugi standardi v zvezi z Other standards related to
elektriko in magnetizmom electricity and magnetism
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 61340-4-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2017
ICS 17.200.99; 29.020
English Version
Electrostatics - Part 4-7: Standard test methods for specific
applications - Ionization
(IEC 61340-4-7:2017)
Électrostatique - Partie 4-7: Méthodes d'essai normalisées Elektrostatik - Teil 4-7: Standard-Prüfverfahren für spezielle
pour des applications spécifiques - Ionisation Anwendungen - Ionisation
(IEC 61340-4-7:2017) (IEC 61340-4-7:2017)
This European Standard was approved by CENELEC on 2017-02-10. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which 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 CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61340-4-7:2017 E
European foreword
The text of document 101/521/FDIS, future edition 2 of IEC 61340-4-7, prepared by IEC/TC 101
"Electrostatics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2017-11-10
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
• latest date by which the national standards conflicting with (dow) 2020-02-10
the document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61340-4-7:2017 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :
IEC/TR 61340-5-2 NOTE Harmonized as CLC/TR 61340-5-2
IEC 61340-4-7 ®
Edition 2.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrostatics –
Part 4-7: Standard test methods for specific applications – Ionization
Électrostatique –
Partie 4-7: Méthodes d'essai normalisées pour des applications spécifiques –
Ionisation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.200.99; 29.020 ISBN 978-2-8322-3775-5
– 2 – IEC 61340-4-7:2017 IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Test fixture and instrumentation . 9
5 Specific requirements for equipment categories . 11
5.1 Specific requirements for all ionization equipment . 11
5.2 Room ionization . 12
5.3 Laminar flow hood ionization . 14
5.4 Work surface ionization . 16
5.5 Compressed gas ionizers – Guns and nozzles . 19
Annex A (informative) Theoretical background and additional information on the
standard test method for the performance of ionizers . 21
A.1 Introductory remarks . 21
A.2 Air ions . 21
A.3 Mobility and ion current . 21
A.4 Neutralization current . 21
A.5 Neutralization rate . 22
A.6 Ion depletion and field suppression . 22
A.7 Charged plate monitor and charge neutralization . 22
A.8 Relationship between charged plate monitor decay time and actual object . 23
A.9 Offset voltage . 23
A.10 Preparation of test area . 23
A.11 Ion transport in airflow . 24
A.12 Obstruction of airflow around the charged plate monitor . 24
A.13 Effect of “air blanket” . 24
A.14 Sources of measurement error . 25
A.14.1 Typical decay time variability . 25
A.14.2 Plate isolation . 25
A.14.3 Charging voltage . 25
A.14.4 Materials near the plate . 25
A.14.5 Other field-producing devices in test area . 25
A.14.6 Effect of offset voltage on decay time . 25
A.15 Importance of ionization equipment maintenance . 26
Annex B (normative) Method of measuring the capacitance of an isolated conductive
plate . 27
B.1 Method . 27
B.2 Equipment . 27
B.3 Procedure . 27
B.4 Example. 27
B.5 Sources of error . 28
B.5.1 Measuring equipment . 28
B.5.2 Poor plate isolation . 28
B.5.3 Objects in the environment . 29
B.5.4 Stray capacitance . 29
Annex C (informative) Safety considerations . 30
IEC 61340-4-7:2017 IEC 2017 – 3 –
C.1 General . 30
C.2 Electrical . 30
C.3 Ozone . 30
C.4 Radioactive . 30
C.5 X-ray . 30
C.6 Installation . 30
Bibliography . 31
Figure 1 – Charged plate monitor components for non-contacting plate measurement . 10
Figure 2 – Charged plate monitor components for contacting plate measurement . 10
Figure 3 – Conductive plate detail for the non-contacting CPM . 11
Figure 4 – Conductive plate detail for the voltage follower CPM . 11
Figure 5 – Test locations for room ionization – AC grids and DC bar systems . 13
Figure 6 – Test locations for room ionization – Single polarity emitter systems . 13
Figure 7 – Test locations for room ionization – Dual DC line systems . 14
Figure 8 – Test locations for room ionization – Pulsed DC emitter systems . 14
Figure 9 – Test locations for vertical laminar flow hood – Top view . 15
Figure 10 – Test locations for vertical laminar flow hood – Side view . 15
Figure 11 – Test locations for horizontal laminar flow hood – Top view . 16
Figure 12 – Test locations for horizontal laminar flow hood – Side view . 16
Figure 13 – Test locations for benchtop ionizer – Top view . 17
Figure 14 – Test locations for benchtop ionizer – Side view . 18
Figure 15 – Test locations for overhead ionizer – Top view . 18
Figure 16 – Test locations for overhead ionizer – Side view . 19
Figure 17 – Test locations for compressed gas ionizer (gun or nozzle) – Side view . 20
Table 1 – Test set-ups and test locations/points (TP) . 12
Table B.1 – Example measurement data . 28
– 4 – IEC 61340-4-7:2017 IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 4-7: Standard test methods for specific applications –
Ionization
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governm
...
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