SIST EN 61643-21:2002/A2:2014

Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods

Is applicable to devices for surge protection of telecommunications and signalling etworks against indirect and direct effects of lightning or other transient overvoltages.

Überspannungsschutzgeräte für Niederspannung - Teil 21: Überspannungsschutzgeräte für den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Leistungsanforderungen und Prüfverfahren

Parafoudres basse-tension - Partie 21: Parafoudres connectés aux réseaux de signaux et de télécommunications - Prescriptions de fonctionnement et méthodes d'essais

Nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 21. del: Naprave, priključene na telekomunikacijska in signalna omrežja - Zahtevane lastnosti in preskusne metode - Dopolnilo A2

Uporablja se za naprave za zaščito telekomunikacijskih in signalnih omrežij pred prenapetostnimi udari v primeru posrednih in neposrednih učinkov strele ali drugih prehodnih prenapetosti.

General Information

• Status: Published
• Publication Date: 15-Dec-2013
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• ICS: 29.240.10 - Substations. Surge arresters
• Technical Committee: POD - Surge aresters
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Jun-2013
• Due Date: 10-Aug-2013
• Completion Date: 16-Dec-2013
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Ref Project: EN 61643-21:2001/A2:2013 - Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods

Relations

• Amends: SIST EN 61643-21:2002 - Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
• Effective Date: 01-Jan-2014
• Amends: SIST EN 61643-21:2002 - Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61643-21:2002/A2:2014
01-januar-2014
1L]NRQDSHWRVWQHQDSUDYH]D]DãþLWRSUHGSUHQDSHWRVWQLPLXGDULGHO1DSUDYH
SULNOMXþHQHQDWHOHNRPXQLNDFLMVNDLQVLJQDOQDRPUHåMD=DKWHYDQHODVWQRVWLLQ
SUHVNXVQHPHWRGH'RSROQLOR$
Low voltage surge protective devices – Part 21: Surge protective devices connected to
telecommunications and signalling networks – Performance requirements and testing
methods
hEHUVSDQQXQJVVFKXW]JHUlWHIU1LHGHUVSDQQXQJ7HLOhEHUVSDQQXQJVVFKXW]JHUlWH
IUGHQ(LQVDW]LQ7HOHNRPPXQLNDWLRQVXQGVLJQDOYHUDUEHLWHQGHQ1HW]ZHUNHQ
/HLVWXQJVDQIRUGHUXQJHQXQG3UIYHUIDKUHQ
Parafoudres basse-tension - Partie 21: Parafoudres connectés aux réseaux de signaux
et de télécommunications - Prescriptions de fonctionnement et méthodes d'essais
Ta slovenski standard je istoveten z: EN 61643-21:2001/A2:2013
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
29.240.10 Transformatorske postaje. Substations. Surge arresters
Prenapetostni odvodniki
SIST EN 61643-21:2002/A2:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 61643-21:2002/A2:2014

---------------------- Page: 2 ----------------------

SIST EN 61643-21:2002/A2:2014

EUROPEAN STANDARD
EN 61643-21/A2

NORME EUROPÉENNE
January 2013
EUROPÄISCHE NORM

ICS 29.240; 29.240.10


English version


Low voltage surge protective devices -
Part 21: Surge protective devices connected to telecommunications
and signalling networks -
Performance requirements and testing methods
(IEC 61643-21:2000/A2:2012)


Parafoudres basse-tension -  Überspannungsschutzgeräte
Partie 21: Parafoudres connectés für Niederspannung -
aux réseaux de signaux Teil 21: Überspannungsschutzgeräte für
et de télécommunications - den Einsatz in Telekommunikations- und
Prescriptions de fonctionnement signalverarbeitenden Netzwerken -
et méthodes d'essais Leistungsanforderungen
(CEI 61643-21:2000/A2:2012) und Prüfverfahren
(IEC 61643-21:2000/A2:2012)



This amendment A2 modifies the European Standard EN 61643-21:2001; it was approved by CENELEC on
2012-08-31. 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 CEN-CENELEC Management Centre 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
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


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61643-21:2001/A2:2013 E

---------------------- Page: 3 ----------------------

SIST EN 61643-21:2002/A2:2014
EN 61643-21:2001/A2:2013 - 2 -
Foreword
The text of document 37A/236/FDIS, future amendment 2 to edition 1 of IEC 61643-21, prepared by
IEC/SC 37A "Low-voltage surge protective devices" of IEC/TC 37 "Surge arresters" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN 61643-21:2001/A2:2013.

The following dates are fixed:
(dop) 2013-07-25
• 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) 2015-08-31
standards conflicting with 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.

This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment
Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC).
Endorsement notice
The text of the International Standard IEC 61643-21:2000/A2:2012 was approved by CENELEC as a
European Standard without any modification.
In the Bibliography of EN 61643-21:2001, the following note has to be added for the standard
indicated:

IEC 60664-1 NOTE Harmonised as EN 60664-1.

---------------------- Page: 4 ----------------------

SIST EN 61643-21:2002/A2:2014
- 3 - EN 61643-21:2001/A2:2013
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
In Annex ZA of EN 61643-21:2001, replace IEC 60999-1:1999 by IEC 60999-1:
IEC 60999-1 - Connecting devices - Electrical copper EN 60999-1 -
conductors - Safety requirements for screw-
type and screwless-type clamping units -
Part 1: General requirements and particular
requirements for clamping units for
conductors from 0,2 mm² up to 35 mm²
(included)

In Annex ZA of EN 61643-21:2001, replace ITU-T Recommendation K.30:1993 by
ITU-T Recommendation K.82:
ITU-T - Characteristics and ratings of solid-state, - -
Recommendation self-restoring overcurrent protectors for the
K.82 protection of telecommunications
installations

Add to Annex ZA of EN 61643-21:2001 the following new references:
IEC 61643-11 2011 Low-voltage surge protective devices - EN 61643-11 2012
(mod) Part 11: Surge protective devices connected
to low-voltage power systems -
Requirements and test methods


ITU-T 2011 Resistibility tests for telecommunication - -
Recommendation equipment exposed to overvoltages and
K.44 overcurrents - Basic Recommendation

In Annex ZA of EN 61643-21:2001/A1:2009, delete ITU-T Recommendation K.65

---------------------- Page: 5 ----------------------

SIST EN 61643-21:2002/A2:2014

---------------------- Page: 6 ----------------------

SIST EN 61643-21:2002/A2:2014



IEC 61643-21

®


Edition 1.0 2012-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE




AMENDMENT 2

AMENDEMENT 2





Low voltage surge protective devices –

Part 21: Surge protective devices connected to telecommunications and

signalling networks – Performance requirements and testing methods




Parafoudres basse tension –

Partie 21: Parafoudres connectés aux réseaux de signaux et de


télécommunications – Prescriptions de fonctionnement et méthodes d’essais













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX R


ICS 29.240; 29.240.10 ISBN 978-2-83220-198-5



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 61643-21:2002/A2:2014
– 2 – 61643-21 Amend.2 © IEC:2012
FOREWORD
This amendment has been prepared by subcommittee 37A: Low-voltage surge protective
devices, of IEC technical committee 37: Surge arresters.
The text of this amendment is based on the following documents:
FDIS Report on voting
37A/236/FDIS 37A/237/RVD

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

_____________

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SIST EN 61643-21:2002/A2:2014
61643-21 Amend.2 © IEC:2012 – 3 –
Table 1 – General SPD requirements
Replace existing Table 1 with the following new table:
Test Requirement – Test Sub- Type of SPD
d
series clause
General test
6.1
1
Identification and
documentation 6.1.1 A A A A A A

Marking 6.1.2 A A A A A A

Transmission tests 6.2.3

Capacitance 6.2.3.1 A O O O A O

Insertion loss 6.2.3.2 O A A A O A

Return loss 6.2.3.3 O O O A O O

Longitudinal balance 6.2.3.4 O O O A O O

Bit Error Ratio (BER) 6.2.3.5 O O O O O O

Near-end crosstalk
(NEXT) 6.2.3.6 O O O A O O

Mechanical tests 6.3

Terminals and connectors 6.3.1 A A A A A A

General testing procedure 6.3.1.1 A A A A A A

Terminals with screws 6.3.1.2 A A A A A A

Screwless terminals 6.3.1.3 A A A A A A

Insulating pierced
connections 6.3.1.4 A A A A A A

Pull-out-test on SPD
terminals designed for
single-core conductors 6.3.1.4.1 A A A A A A

Pull-out-test on SPD
terminals designed for
multi-core cables and
cords 6.3.1.4.2 A A A A A A

Mechanical strength
(mounting) 6.3.2 A A A A A A





SPD with only voltage-
limiting function
SPD with both voltage-
limiting and current-
limiting functions
SPD with voltage-limiting
function and linear
component between its
terminals
SPD having both voltage-
limiting and current-
limiting functions with
enhanced transmission
capabilities
SPD having only voltage-
limiting function but
intended for use in
extended range
environment
SPD having both voltage-
limiting and current-
limiting functions but
intends for use in
extended range
environment

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SIST EN 61643-21:2002/A2:2014
– 4 – 61643-21 Amend.2 © IEC:2012
Table 1 (continued)
Test Requirement – Test Sub- Type of SPD
d
series clause


Resistance to ingress of
solid objects and to
harmful ingress of water 6.3.3 A A A A A A
Protection against direct
contact 6.3.4 A A A A A A
Fire resistance 6.3.5 A A A A A A
Environmental tests 6.4
High temperature and
humidity endurance 6.4.1 O O O O A A
Environmental cycling
with impulse surges 6.4.2 O O O O A A
Environmental cycling
with AC surges 6.4.3 O O O O A A
2 Voltage limiting tests 6.2.1
Maximum continuous
operating voltage (Uc) 6.2.1.1 A A A A A A
Insulation resistance 6.2.1.2 A A A A A A
Impulse durability for
a
voltage limiting function 6.2.1.6 A A A A A A
b
Impulse-limiting voltage 6.2.1.3 A A A A A A
Impulse reset switching
types 6.2.1.4 A A A A A A
AC durability for voltage
a
limiting function 6.2.1.5 O O O O O O
Blind spot test multi stage
SPD 6.2.1.8 A A A A A A
Overstressed fault mode 6.2.1.7 O O O O O O
3 Current limiting tests 6.2.2
.e e
Rated current 6.2.2.1 A A A A A A
Series resistance 6.2.2.2 N.A. A A A N.A. A
c c
Current response time 6.2.2.3 N.A. A N.A. A N.A. A
c c
Current reset time 6.2.2.4 N.A. A N.A. A N.A. A
Maximum interrupting
c c
voltage 6.2.2.5 N.A. A N.A. A N.A. A
c c
Operating duty test 6.2.2.6 N.A. A N.A. A N.A. A
AC durability for current
a c c
limiting function 6.2.2.7 N.A. A N.A. A N.A. A
Impulse durability for
a c c
current limiting function 6.2.2.8 N.A. A N.A. A N.A. A
Acceptance tests
4 6.5 O O O O O O
SPD with only voltage-
limiting function
SPD with both voltage-
limiting and current-
limiting functions
SPD with voltage-limiting
function and linear
component between its
terminals
SPD having both voltage-
limiting and current-
limiting functions with
enhanced transmission
capabilities
SPD having only voltage-
limiting function but
intended for use in
extended range
environment
SPD having both voltage-
limiting and current-
limiting functions but
intends for use in
extended range
environment

---------------------- Page: 10 ----------------------

SIST EN 61643-21:2002/A2:2014
61643-21 Amend.2 © IEC:2012 – 5 –
Table 1 (continued)
A Applicable.
N.A. Not applicable.
O Optional.
a

For each category of test impulse a new set of samples can be used.
b
It is admissible to measure the impulse-limiting voltage 6.2.1.3 while testing impulse durability 6.2.1.6.
c

Test not applicable if there is a linear component between its terminals.
d
Each test series is carried out on three samples.
e
Applicable only for 4/5 terminal SPD (see fig. 1d and 1e)

2 Normative references
Replace the existing reference to IEC 60999-1:1999 with the following:
IEC 60999-1, Connecting devices – Electrical copper conductors – Safety requirements for
screw-type and screwless-type clamping units – Part 1: General requirements and particular

2 2
requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
Replace the existing reference to ITU-T Recommendation K.30:1993 with the following:
ITU-T Recommendation K.82, Characteristics and ratings of solid-state, self-restoring
overcurrent protectors for the protection of telecommunications installations
Add the following new references:
IEC 61643-11:2011, Surge protective devices connected to low-voltage power distribution
systems – Part 1: Performance requirements and testing methods
ITU-T Recommendation K.44: 2011, Resistibility tests for telecommunication equipment
exposed to overvoltages and overcurrents – Basic Recommendation
Delete the reference to ITU-T Recommendation K.65

3 Definitions
Replace the existing definition 3.11 with the following:
3.11
total discharge current I
Total
current which flows through the earthing terminal (common terminal C) of a multi-terminal
SPD during the total discharge current test.
NOTE This may also be called “Total surge current”.
Add the following new definitions:
3.33
nominal discharge current I
n
crest value of the current through the SPD having a current waveshape of 8/20

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SIST EN 61643-21:2002/A2:2014
– 6 – 61643-21 Amend.2 © IEC:2012
3.34
rated surge current I
SM
maximum value of SPD impulse current with a defined waveshape
3.35
impulse discharge current I
imp
crest value of a discharge current (10/350) through the SPD

4.2 Test temperature and humidity
Replace the existing first paragraph with the following:
The SPDs shall be tested at a temperature of 25 °C ± 10 °C with relative humidity from 25 %
to 75 %.
If required by the manufacturer or customer, the SPDs shall be tested at the extreme
temperatures of the service temperature range selected for the intended application. The
selected temperature range may be narrower than the full range of 4.1 depending on the
application.

4.3 SPD testing
Replace the existing third paragraph with the following:
When a base is used for testing, the measurements shall be made as close as possible to the
terminals of the SPD base (termination module) intended for external connections. Waveform
recorders used for measurements shall have a minimum performance in accordance with
IEC 61083-1 with respect to the specific measurement.
NOTE For waveform recorders settings, see Annex D.

Replace the existing fourth paragraph with the following:
SPDs of Figures 1c, 1e and 1f may have a common current path (including protective
components or just internal connections) that conducts the total impulse current I . The
Total
manufacturer shall state the maximum value of impulse current for this current path. This
value of impulse current may be less than n times the maximum current capability of each line
terminal, where n equals the number of line terminals.

Delete the 5th paragraph of 4.3.

5.1.1 Identification and documentation
Replace items e), j), l) and m) with the following:
e) Maximum continuous operating voltage U (AC and/or DC)
c

---------------------- Page: 12 ----------------------

SIST EN 61643-21:2002/A2:2014
61643-21 Amend.2 © IEC:2012 – 7 –
j) Impulse rating (according to Table 3 - category and corresponding parameters e.g. C2:
2k V/ 1kA)
l) Transmission characteristics (appropriate to the intended SPD use)
m) Additional information, where applicable:
• replaceable components,
• the use of radioisotopes,
• ‘i ’ and ‘AC overstress current’ when impulse overstress test (6.2.1.7) is required
n
• surge currents as I , I , I I

SM n imp, Total

Add the following item to the end of the list:
o) (SPD-) Category and rating (if the category is printed on the SPD it is recommended to
C2
frame the category in a square. Example: )

5.1.2 Marking
Replace the existing first paragraph with the following:
The SPDs shall be clearly marked with 5.1.1 items: a) the manufacturer's name or trademark,
b) manufacturing traceability, c) model number, and e) the maximum continuous operating
voltage. The marking material shall be wipe resistant and resistant to solvents normally used
in the SPD application. The location can be under a cover of the enclosure, but shall be easily
accessible by the end user (e.g. no tools). Any notes for special handling shall be included in
the documentation or on the packaging. Compliance is checked in accordance with 6.1.2.

6.2.1 Voltage-limiting tests
Add the following text immediately after the subheading 6.2.1 Voltage-limiting tests:
If not otherwise specified, for all tests where a power supply at U or at the maximum
C
interrupting voltage is required, the voltage tolerance for testing shall be +0/-5 %. When DC is
used the maximum ripple shall not exceed 5 %. When AC is used tests shall be performed at
50 Hz or 60 Hz, except if otherwise specified by the manufacturer.
At all voltage-limiting tests it is required to
...