SIST EN 62271-107:2012
(Main)High-voltage switchgear and controlgear - Part 107: Alternating current fused circuit-switchers for rated voltages above 1 kV up to and including 52 kV (IEC 62271-107:2012)
High-voltage switchgear and controlgear - Part 107: Alternating current fused circuit-switchers for rated voltages above 1 kV up to and including 52 kV (IEC 62271-107:2012)
Subclause 1.1 of IEC 62271-1:2007 is not applicable, and is replaced as follows. This part of IEC 62271 applies to three-pole operated units for distribution systems that are functional assemblies of a circuit-switcher and current-limiting fuses designed so as to be capable of: - breaking, at the rated recovery voltage, any load or fault current up to and including the rated short-circuit breaking current; - making, at the rated voltage, circuits to which the rated short-circuit breaking current applies. They are intended to be used for circuits or applications requiring only a normal mechanical and electrical endurance capability. Such applications cover protection of HV/LV transformers for instance, but exclude distribution lines or cables, as well as motor circuits and capacitor bank circuits.
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 107: Wechselstrom-Leistungsschalter-Sicherungs-Kombinationen für Bemessungsspannungen über 1 kV bis einschließlich 52 kV (IEC 62271-107:2012)
Appareillage à haute tension - Partie 107: Circuits-switchers fusiblés pour courant alternatif de tension assignée supérieure à 1 kV et jusqu'à 52 kV inclus (CEI 62271-107:2012)
La CEI 62271-107:2012 s'applique aux appareils à man uvre tripolaire pour les réseaux de distribution, qui sont des ensembles fonctionnels constitués d'un circuit-switcher et de fusibles limiteurs, conçus de façon à être capables: - de couper, à la tension de rétablissement assignée, tout courant de charge ou de défaut jusqu'au pouvoir de coupure en court-circuit assigné y compris; - d'établir, à la tension assignée, les circuits pour lesquels le courant de court-circuit assigné s'applique. Cette deuxième édition annule et remplace la première édition parue en 2005. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente. - la référence à la CEI 60694 a été remplacée par la CEI 62271-1; - De nouveaux articles et paragraphes de la CEI 62271-1 ont été ajoutés et une nouvelle terminologie a été proposée lorsque nécessaire. - les références normatives ont été mises à jour: CEI 60265-1 en CEI 62271-103, CEI 60787 en CEI/TR 60787, CEI 60466 en CEI 62271-201, et CEI/TR 60787 a été déplacée dans la bibliographie; - les figures et les tableaux ont été placés à l'endroit où ils sont cités en premier dans le document; - la numérotation des figures et des tableaux a été modifiée afin d'obtenir l'ordre convenable; - la définition de la (décharge disruptive non entretenue (NSDD) a été supprimée. Cette définition est incluse dans la CEI 62271-1; - les critères d'acceptation ont été alignés avec le 6.101.4 de la CEI 62271-103:2011; - regroupement sous le 6.103 des diverses dispositions exprimées concernant 'l'extension de la validité des essais de type'. Certaines des règles étaient dupliquées dans les Articles 6 et 8 et il semble plus approprié de ne traiter dans chaque paragraphe que l'essai de type à effectuer. Les conditions n'ont pas été modifiées, mais la terminologie est plus claire; - nouvelle numérotation des paragraphes des Articles 8 et 9 pour éviter les conflits avec les articles de la CEI 62271-1.
Visokonapetostne stikalne in krmilne naprave - 107. del: Stikala za izmenični tok z vgrajeno varovalko za naznačene napetosti nad 1kV do vključno 52 kV (IEC 62271-107:2012)
Podtočka 1.1 standarda IEC 62271-1:2007 se ne uporablja in se nadomesti z naslednjim. Ta del standarda IEC 62271 se nanaša na tripolne delujoče enote za razdelilne sisteme, ki so funkcionalni sestavi vodovnih stikal in tokovno omejilnih varovalk, načrtovanih tako, da lahko: – pri ocenjenem ponovnem pojavu napetosti prekinejo kakršno koli obremenitev ali okvarni tok do in vključno z nazivnim kratkostičnim prekinjenim tokom; – pri nazivni napetosti vzpostavijo tokokroge, v zvezi s katerimi se uporablja nazivni kratkostični prekinjeni tok. Namenjene so za uporabo v tokokrogih ali napravah, za katere je potrebna le običajna mehanska in električna vzdržljivost. Take naprave zajemajo na primer varovanje visoko/nizkonapetostnih transformatorjev, vendar ne vključujejo razdelilnih omrežij ali kablov ter tokokrogov za motorje in tokokrogov za kondenzatorske baterije.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 62271-107:2012
01-oktober-2012
1DGRPHãþD
SIST EN 62271-107:2006
9LVRNRQDSHWRVWQHVWLNDOQHLQNUPLOQHQDSUDYHGHO 6WLNDOD]DL]PHQLþQLWRN]
YJUDMHQRYDURYDONR]DQD]QDþHQHQDSHWRVWLQDGN9GRYNOMXþQRN9 ,(&
High-voltage switchgear and controlgear - Part 107: Alternating current fused circuit-
switchers for rated voltages above 1 kV up to and including 52 kV (IEC 62271-107:2012)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 107: Wechselstrom-
Leistungsschalter-Sicherungs-Kombinationen für Bemessungsspannungen über 1 kV bis
einschließlich 52 kV (IEC 62271-107:2012)
Appareillage à haute tension - Partie 107: Circuits-switchers fusiblés pour courant
alternatif de tension assignée supérieure à 1 kV et jusqu'à 52 kV inclus (CEI 62271-
107:2012)
Ta slovenski standard je istoveten z: EN 62271-107:2012
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
SIST EN 62271-107:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 62271-107:2012
---------------------- Page: 2 ----------------------
SIST EN 62271-107:2012
EUROPEAN STANDARD
EN 62271-107
NORME EUROPÉENNE
August 2012
EUROPÄISCHE NORM
ICS 29.130.10 Supersedes EN 62271-107:2005
English version
High-voltage switchgear and controlgear -
Part 107: Alternating current fused circuit-switchers for rated voltages
above 1 kV up to and including 52 kV
(IEC 62271-107:2012)
Appareillage à haute tension - Hochspannungs-Schaltgeräte und -
Partie 107: Circuits-switchers fusiblés Schaltanlagen -
pour courant alternatif de tension Teil 107: Wechselstrom-
assignée supérieure à 1 kV et jusqu'à Leistungsschalter-Sicherungs-
52 kV inclus Kombinationen für
(CEI 62271-107:2012) Bemessungsspannungen über 1 kV bis
einschließlich 52 kV
(IEC 62271-107:2012)
This European Standard was approved by CENELEC on 2012-07-03. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-107:2012 E
---------------------- Page: 3 ----------------------
SIST EN 62271-107:2012
EN 62271-107:2012 - 2 -
Foreword
The text of document 17A/997/FDIS, future edition 2 of IEC 62271-107, prepared by SC 17A, "High-
voltage switchgear and controlgear", of IEC TC 17, "Switchgear and controlgear" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 62271-107:2012.
The following dates are fixed:
(dop) 2013-04-03
• 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 (dow) 2015-07-03
standards conflicting with the
document have to be withdrawn
This document supersedes EN 62271-107:2005.
EN 62271-107:2012 includes the following significant technical changes with respect to EN 62271-
107:2005:
– the reference to EN 60694 has been changed to EN 62271-1;
– the new clauses and subclauses from EN 62271-1 have been added and where necessary new
wording has been provided:
4.11 Rated filling levels for insulation and/or operation;
5.19 X-ray emission;
5.20 Corrosion;
6.10 Additional tests on auxiliary and control circuits;
6.11 X-radiation test procedure for vacuum interrupters;
12 Influence of the product on the environment;
– the normative references have been updated: EN 60265-1 to EN 62271-103, IEC 60787 to
IEC/TR 60787, IEC 60466 to EN 62271-201, and IEC/TR 60787 was moved to the bibliography;
– the figures and tables have been placed in the document where they are first cited;
– the numbering of figures and tables has been changed to obtain the correct order;
– the definition of NSDD was deleted. This definition is included in EN 62271-1;
– the acceptance criteria have been aligned with 6.101.4 of EN 62271-103:2011;
– the various provisions expressed about "extension of the validity of type tests" have been grouped
under 6.103: some of the rules were duplicated in Clauses 6 and 8, and it seems better fitted to deal
within each type test sub-clause only with the type test to be performed. Conditions have not been
changed, but the wording is clearer;
– new numbering of subclauses in Clauses 8 and 9 to avoid conflict with clauses from EN 62271-1.
---------------------- Page: 4 ----------------------
SIST EN 62271-107:2012
- 3 - EN 62271-107:2012
This International Standard is to be read in conjunction with EN 62271-1:2008, to which it refers and
which is applicable unless otherwise specified. In order to simplify the indication of corresponding
requirements, the same numbering of clauses and subclauses is used as in EN 62271-1. Amendments to
these clauses and subclauses are given under the same numbering, whilst additional subclauses, are
numbered from 101.
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 62271-107:2012 was approved by CENELEC as a European
Standard without any modification.
---------------------- Page: 5 ----------------------
SIST EN 62271-107:2012
EN 62271-107:2012 - 4 -
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60282-1 2009 High-voltage fuses - EN 60282-1 2009
Part 1: Current-limiting fuses
IEC 62271-1 2007 High-voltage switchgear and controlgear - EN 62271-1 2008
Part 1: Common specifications
IEC 62271-100 2008 High-voltage switchgear and controlgear - EN 62271-100 2009
Part 100: Alternating current circuit-breakers
IEC 62271-102 2001 High-voltage switchgear and controlgear - EN 62271-102 2002
+ corr. April 2002 Part 102: Alternating current disconnectors + corr. July 2008
+ corr. February 2005 and earthing switches + corr. March 2005
+ corr. May 2003
IEC 62271-103 2011 High-voltage switchgear and controlgear - EN 62271-103 2011
Part 103: Switches for rated voltages above
1 kV up to and including 52 kV
IEC 62271-105 - High-voltage switchgear and controlgear - EN 62271-105 -
Part 105: Alternating current switch-fuse
combinations
IEC 62271-200 - High-voltage switchgear and controlgear - EN 62271-200 -
Part 200: AC metal-enclosed switchgear and
controlgear for rated voltages above 1 kV and
up to and including 52 kV
IEC 62271-201 - High-voltage switchgear and controlgear - EN 62271-201 -
Part 201: AC insulation-enclosed switchgear
and controlgear for rated voltages above 1 kV
and up to and including 52 kV
---------------------- Page: 6 ----------------------
SIST EN 62271-107:2012
IEC 62271-107
®
Edition 2.0 2012-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 107: Alternating current fused circuit-switchers for rated voltages above
1 kV up to and including 52 kV
Appareillage à haute tension –
Partie 107: Circuits-switchers fusiblés pour courant alternatif de tension
assignée supérieure à 1 kV et jusqu'à 52 kV inclus
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 29.130.10 ISBN 978-2-83220-119-0
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 62271-107:2012
– 2 – 62271-107 © IEC:2012
CONTENTS
FOREWORD . 5
1 General . 7
1.1 Scope . 7
1.2 Normative references . 7
2 Normal and special service conditions . 8
3 Terms and definitions . 8
3.1 General terms . 8
3.2 Assemblies of switchgear and controlgear . 8
3.3 Parts of assemblies . 8
3.4 Switching devices . 8
3.5 Parts of switchgear and controlgear . 9
3.6 Operation . 9
3.7 Characteristic quantities . 10
3.101 Fuses . 12
4 Ratings . 12
4.1 Rated voltage (U ) . 13
r
4.2 Rated insulation level . 13
4.3 Rated frequency (f ) . 13
r
4.4 Rated normal current and temperature rise . 13
4.4.1 Rated normal current (I ) . 13
r
4.4.2 Temperature rise. 13
4.4.101 Rated maximum thermal current (I ) . 13
th
4.5 Rated short-time withstand current (I ) . 13
k
4.6 Rated peak withstand current (I ) . 13
p
4.7 Rated duration of short circuit (t ) . 14
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) . 14
a
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits . 14
4.10 Rated pressure of compressed gas supply for controlled pressure systems . 14
4.11 Rated filling levels for insulation and/or operation . 14
4.101 Rated short-circuit breaking current I . 14
sc
4.102 Rated transient recovery voltage . 14
4.103 Rated short-circuit making current . 14
4.104 Rated take-over current . 15
5 Design and construction . 15
5.1 Requirements for liquids in fused circuit-switchers . 15
5.2 Requirements for gases in fused circuit-switchers. 15
5.3 Earthing of fused circuit-switchers . 15
5.4 Auxiliary and control equipment . 15
5.5 Dependent power operation . 16
5.6 Stored energy operation . 16
5.7 Independent manual or power operation (independent unlatched operation) . 16
5.8 Operation of releases . 16
5.9 Low- and high- pressure interlocking and monitoring devices. 16
5.10 Nameplates . 16
---------------------- Page: 8 ----------------------
SIST EN 62271-107:2012
62271-107 © IEC:2012 – 3 –
5.11 Interlocking devices . 17
5.12 Position indication . 17
5.13 Degrees of protection by enclosures . 17
5.14 Creepage distances for outdoor insulators . 17
5.15 Gas and vacuum tightness . 17
5.16 Liquid tightness . 17
5.17 Fire hazard (flammability) . 17
5.18 Electromagnetic compatibility (EMC) . 17
5.19 X-ray emission . 17
5.20 Corrosion . 17
5.101 Linkages between the fuse striker(s) and the circuit-switcher release . 18
5.102 Low over-current conditions (long fuse pre-arcing time conditions) . 18
6 Type tests . 18
6.1 General . 18
6.1.1 Grouping of tests . 19
6.1.2 Information for identification of specimens . 19
6.1.3 Information to be included in type-test reports . 19
6.2 Dielectric tests . 19
6.3 Radio interference voltage (r.i.v.) test . 19
6.4 Measurement of the resistance of circuits . 19
6.5 Temperature-rise tests . 19
6.6 Short-time withstand current and peak withstand current tests . 19
6.7 Verification of the protection . 19
6.8 Tightness tests . 20
6.9 Electromagnetic compatibility tests (EMC) . 20
6.10 Additional tests on auxiliary and control circuits . 20
6.11 X-radiation test procedure for vacuum interrupters . 20
6.101 Making and breaking tests . 20
6.101.1 Conditions for performing the tests. 20
6.101.2 Test duty procedures . 25
6.101.3 Behaviour of the fused circuit-switcher during tests . 30
6.101.4 Condition of the apparatus after tests . 30
6.102 Mechanical operation tests . 31
6.102.1 Condition of fused circuit-switcher during and after mechanical
operation tests . 32
6.102.2 Condition of the fuses during and after mechanical operation tests . 32
6.103 Extension of validity of type tests . 32
6.103.1 Dielectric properties . 32
6.103.2 Temperature rise. 32
6.103.3 Making and breaking . 33
7 Routine tests . 33
7.101 Mechanical operating tests . 33
8 Guide for the selection of fused circuit-switchers . 34
8.1 Selection of rated values . 34
8.2 Continuous or temporary overload due to changed service conditions . 34
8.101 Additional criteria . 34
8.102 Short-circuit breaking current . 34
8.103 Rated maximum thermal current . 35
8.104 Currents between thermal current and I of the fuses . 35
3
---------------------- Page: 9 ----------------------
SIST EN 62271-107:2012
– 4 – 62271-107 © IEC:2012
8.105 Transfer current . 35
8.106 Take-over current . 35
8.107 Extension of the validity of type tests . 35
8.108 Operation . 36
8.109 Comparison of performances of fused circuit-switchers with performances
of switch-fuse combinations and circuit-breakers . 36
9 Information to be given with enquiries, tenders and orders . 37
9.1 Information to be given with enquiries and orders . 37
9.2 Information to be given with tenders . 37
10 Rules for transport, storage, installation, operation and maintenance . 38
11 Safety . 38
12 Influence of the product on the environment . 38
Annex A (informative) Applicability of the rated take-over current test duty . 39
Bibliography . 47
Figure 1 – Characteristics for determining the take-over current . 15
Figure 2 – Arrangement of test circuits for test duties TD , TD , TD and TD . 22
Ith Isc Ito Ilow
Figure 3 – Representation of a specified TRV by a two-parameter reference line and a
delay line . 24
Figure 4 – Example of a two parameters envelope for a TRV . 25
Figure 5 – Measurement of the power frequency recovery voltage with striker operation . 27
Figure A.1 – Visualization of the application margin for a given fuse . 41
Table 1 – Nameplate markings . 16
Table 2 – Summary of test parameters for test duties . 29
Table 3 – Comparison between switch-fuse combination and fused circuit-switcher . 37
Table 4 – Comparison between fused circuit-switcher and circuit breaker . 37
Table A.1 – Minimum application margin Am according to fuse characteristic . 44
Table A.2 – Minimum protection time delay . 45
Table A.3 – Examples of possible need for time delay . 45
---------------------- Page: 10 ----------------------
SIST EN 62271-107:2012
62271-107 © IEC:2012 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 107: Alternating current fused circuit-switchers
for rated voltages above 1 kV up to and including 52 kV
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, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62271-107 has been prepared by subcommittee 17A: High voltage
switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear.
This second edition cancels and replaces the first edition, published in 2005. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition.
– the reference to IEC 60694 has been changed to IEC 62271-1;
– the new clauses and subclauses from IEC 62271-1 have been added and where
necessary new wording has been provided;
• 4.11 Rated filling levels for insulation and/or operation
• 5.19 X-ray emission
• 5.20 Corrosion
---------------------- Page: 11 ----------------------
SIST EN 62271-107:2012
– 6 – 62271-107 © IEC:2012
• 6.10 Additional tests on auxiliary and control circuits
• 6.11 X-radiation test procedure for vacuum interrupters
• 12 Influence of the product on the environment
– the normative references have been updated: IEC 60265-1 to IEC 62271-103, IEC 60787
to IEC/TR 60787, IEC 60466 to IEC 62271-201, and IEC/TR 60787 was moved to the
bibliography;
– the figures and tables have been placed in the document where they are first cited;
– the numbering of figures and tables has been changed to obtain the correct order;
– the definition of NSDD was deleted. This definition is included in IEC 62271-1;
– the acceptance criteria have been aligned with 6.101.4 of IEC 62271-103:2011;
– the various provisions expressed about "extension of the validity of type tests" have been
grouped under 6.103: some of the rules were duplicated in Clauses 6 and 8, and it seems
better fitted to deal within each type test sub-clause only with the type test to be
performed. Conditions have not been changed, but the wording is clearer;
– new numbering of subclauses in Clauses 8 and 9 to avoid conflict with clauses from
IEC 62271-1.
The text of this standard is based on the following documents:
FDIS Report on voting
17A/997/FDIS 17A/1004/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This pu
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.