EN 61643-11:2002/A11:2007
(Amendment)Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and tests
Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and tests
Superseded by EN 61643-11:2012
Überspannungsschutzgeräte für Niederspannung - Teil 11: Überspannungsschutzgeräte für den Einsatz in Niederspannungsanlagen - Anforderungen und Prüfungen
Parafoudres basse-tension - Partie 11: Parafoudres connectés aux systèmes de distribution basse tension - Prescriptions et essais
Nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 11. del: Naprave za zaščito pred prenapetostnimi udari za nizkonapetostne napajalne sisteme - Zahteve in preskusi
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2008
1L]NRQDSHWRVWQHQDSUDYH]D]DãþLWRSUHGSUHQDSHWRVWQLPLXGDULGHO 1DSUDYH
]D]DãþLWRSUHGSUHQDSHWRVWQLPLXGDUL]DQL]NRQDSHWRVWQHQDSDMDOQHVLVWHPH
=DKWHYHLQSUHVNXVL
Low-voltage surge protective devices - Part 11: Surge protective devices connected to
low-voltage power systems - Requirements and tests
Überspannungsschutzgeräte für Niederspannung - Teil 11: Überspannungsschutzgeräte
für den Einsatz in Niederspannungsanlagen -
Anforderungen und Prüfungen
Parafoudres basse-tension - Partie 11: Parafoudres connectés aux systemes de
distribution basse tension - Prescriptions et essais
Ta slovenski standard je istoveten z: EN 61643-11:2002/A11:2007
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
29.240.10 Transformatorske postaje. Substations. Surge arresters
Prenapetostni odvodniki
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 61643-11/A11
NORME EUROPÉENNE
January 2007
EUROPÄISCHE NORM
ICS 29.240.10
English version
Low-voltage surge protective devices -
Part 11: Surge protective devices
connected to low-voltage power systems -
Requirements and tests
Parafoudres basse-tension - Überspannungsschutzgeräte
Partie 11: Parafoudres connectés aux für Niederspannung -
systèmes de distribution basse tension - Teil 11: Überspannungsschutzgeräte für
Prescriptions et essais den Einsatz in Niederspannungsanlagen -
Anforderungen und Prüfungen
This amendment A11 modifies the European Standard EN 61643-11:2002; it was approved by CENELEC on
2006-07-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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
© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61643-11:2002/A11:2007 E
Foreword
This amendment to the European Standard EN 61643-11:2002 was prepared by the Technical
Committee CENELEC TC 37A, Low voltage surge protective devices.
The text of the draft was submitted to the formal vote and was approved by CENELEC as amendment
A11 to EN 61643-11:2002 on 2006-07-01.
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) 2007-08-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2009-07-01
The following table gives an overview on the series of publications from TC 37A.
Present
Publication No Title
status
EN 61643-11 Low-voltage surge protective devices – Part 11: Surge protective devices connected Published
to low-voltage power systems – Requirements and testing methods
TS 61643-12 Low-voltage surge protective devices – Part 12: Surge protective devices connected Published
to low-voltage power systems –- Selection and application principles
EN 61643-21 Low-voltage surge protective devices – Part 21: Surge protective devices connected Published
to telecommunications and signalling networks – Performance requirements and
testing methods
TS 61643-22 Low-voltage surge protective devices – Part 22: Surge protective devices connected Published
to telecommunications and signalling networks – Selection and application principles
prEN 50XXX-X Low voltage surge protective devices – Surge protective devices for specific At working group
application including d.c. – Part X: Requirements and tests level
prTS 50XXX-Y Low voltage surge protective devices – Surge protective devices for specific At working group
application including d.c. – Part Y: Selection and application rules level
– 3 – EN 61643-11:2002/A11:2007
3 Definitions
Replace the existing definitions by the following:
3.11
maximum continuous operating voltage U
c
the maximum r.m.s. voltage, which may be continuously applied to the SPD´s mode of protection
3.18
temporary overvoltage test value U
T
test voltage applied, for a specific duration, to the SPD to simulate the stress under TOV conditions
3.22
1,2/50 voltage impulse
voltage impulse with a virtual front time of 1,2 µs and a time to half-value of 50 µs where
– the front time is defined according to IEC 60060-1 to be 1,67 x (t - t ), where t and t are the
90 30 90 30
90 % and 30 % points on the leading edge of the waveform;
– the time to half-value is defined as the time between the virtual origin and the 50 % point on the
tail. The virtual origin is the point where a straight line, drawn through the 30 % and 90 % points
on the leading edge of the waveform, intersects the U = 0 line.
3.23
8/20 current impulse
current impulse with a virtual front time of 8 µs and a time to half-value of 20 µs where
– the front time is defined according to IEC 60060-1 to be 1,25 x (t - t ), where t and t are the
90 10 90 10
90 % and 10 % points on the leading edge of the waveform;
– the time to half-value is defined as the time between the virtual origin and the 50 % point on the
tail. The virtual origin is the point where a straight line, drawn through the 10 % and 90 % points
on the leading edge of the waveform, intersects the I = 0 line.
Delete definition 3.45 and replace by Void.
Add the following new definitions:
3.47
multipole SPD
type of SPD with more than one mode of protection, or a combination of electrically interconnected
SPDs offered as a unit
3.48
total discharge current I
Total
current which flows through the PE or PEN conductor of a multipole SPD during the total discharge
current test
NOTE 1 This test is used to check for the cumulative effects that occur when multiple modes of protection of a multipole SPD
conduct at the same time.
NOTE 2 I is particularly relevant for class I tested SPDs used for the purpose of lightning protection equipotential bonding
total
according to IEC 62305 series.
3.49
maximum continuous operating voltage of the power system (U )
cs
maximum r.m.s. voltage to which the SPD may be permanently subjected at the point of application of
the SPD
NOTE This only takes into account voltage regulation and/or voltage drop or increase. It is also called “actual maximum
system voltage” and is equal to 1,1 times U .
4 Classification
Add the following new subclause:
4.11 Multipole SPD (if declared by manufacturer)
Replace the title of Clause 5 by:
5 Preferred values
Add the following note at the beginning of Clause 5
NOTE Preferred values means values which are often used in practice. Depending on real conditions lower and in some cases
higher values may be needed.
Replace Subclause 5.1 by
5.1 Preferred values of peak impulse current for class I tests Ipeak
I : 25; 20; 12,5; 10 and 5 kA
peak
NOTE these values and related parameters are described in Table 3.
Add the following new subclause:
5.6 Preferred values for I
Total
Type 1: 100; 75 and 50 kA
Type 2: 80; 60; 40 and 20 kA
Type 3: not applicable
6 Requirements
6.1.1 Identification
Replace items e) and f) by the following:
e) Maximum continuous operating voltage U (one value for each mode of protection except if all
c
values are equal)
f) SPD type and discharge parameters for each mode of protection declared by the manufacturer:
– type 1 and I in kA or alternatively “T1“ (T1 in a square) and I in kA
imp imp
– type 2 and I in kA or alternatively “T2“ (T2 in a square) and I in kA
max max
– type 3 and U in kV or alternatively “T3“ (T3 in a square) and U in kV
oc oc
– 5 – EN 61643-11:2002/A11:2007
Replace item p) by the following:
p) installation instructions (e.g. type of LV systems: TN, TT, IT etc , connections to LV systems and
rated system voltages for which the SPD is designed, mechanical dimensions, lead lengths, etc.)
Add a new item x) as follows:
x) Total discharge current I for multipole SPDs (if declared by the manufacturer)
Total
6.1.2 Marking
Replace the first sentence by the following:
Markings a), e), f), g), h), j), I), o) and q) in 6.1.1 are mandatory on the body, or permanently attached
to the body, of the SPD.
6.2.11 Short-circuit withstand capability
Replace the existing text of Subclause 6.2.11 by the following:
An overstressed (short-circuited) SPD shall withstand the power short-circuit currents that may occur
in service. Testing is in accordance with 7.7.3.
Replace Subclause 6.5.5 by the following:
6.5.5 Behaviour under temporary overvoltages
An SPD shall either withstand a TOV without changes in functionality, or fail in a manner described in
7.7.4 and 7.7.6.
NOTE The tests given in 7.7.4 and 7.7.6 do not take into account the possibility of a surge occurring simultaneously with a
TOV event.
6.5.5.1 TOVs caused by faults in the high (medium) voltage system
SPDs connected to PE and for use on power distribution systems shall be tested at U in accordance
T
with 7.7.4 and Table B.1.
6.5.5.2 TOVs caused by faults or disturbances in the low voltage system
If U is greater or equal to U there is no need to perform this test.
c
T
All other SPDs shall be tested using either the TOV voltages U given in Table B.1 or the TOV
T
voltages stated by the manufacturer according to 6.1.1 w), whichever values are higher. This test shall
be performed in accordance with 7.7.6.
Add the following new subclause:
6.5.6 Total discharge current I
Total
This test is only conducted if the manufacturer claims a total discharge current in accordance with
7.9.10.
International Electrotechnical Commission IEC
6.6 Additional test requirements for two-port SPDs and one-port SPDs with separate
input/output terminals
Add the following new subclause:
6.6.4 Overload behaviour
The SPD shall not be damaged or altered by overloads, which may occur in normal use. Compliance
with this requirement is checked according to 7.8.5.
7 Type tests
Replace the full clause by the following:
Type tests are carried out as indicated in Table 2 on three samples per test series. Within any test
series, the tests shall be carried out in the order given in Table 2. The order in which test series are
carried out may be varied.
If all samples pass a test series, the design of the SPD is acceptable for that test series. If two or more
test samples fail a test series, the SPD does not comply with this standard.
In the event that a single sample does not pass a test, this test, and those preceding in the same test
series that may have influenced the result of this test, shall be repeated with three new samples, but
this time no failure of any sample is allowed.
A set of three samples may be used for more than one test series, if agreed by the manufacturer.
If the SPD is an integral part of a product covered by another international standard, the requirements
of the other international standard shall apply to those parts of the product which do not belong to the
SPD section of the product.
7.1 General testing procedures
Add the following new paragraph after the first paragraph:
Unless otherwise specified, a.c. values given in this standard are r.m.s values.
Add the following new paragraph after the paragraph starting with “When not otherwise specified.”
If not otherwise specified, for all tests where a power supply at U is required, the voltage tolerance for
C
testing shall be U%.
c −5
Replace the existing Table 2 by the following new Table 2:
– 7 – EN 61643-11:2002/A11:2007
Table 2 – Type test requirements where applicable for SPDs
ACCESSIBLE OUT OF REACH
Test
FIXED PORTABLE FIXED
Test description Subclause
series
Test class
I II III I II III I II III
6.1.1/6.1.2/7.2
1 Identification and marking Y Y Y Y Y Y Y Y Y
6.2.1/6.3/7.3
Terminals and connections Y Y Y Y Y Y Y Y Y
Testing for protection against direct
6.5.1/7.4
Y Y Y Y Y Y – – –
contact
Standby power consumption and
6.5.3/6.5.4/7.7.5
Y Y Y Y Y Y Y Y Y
residual current
2 Protection level 6.2.2/7.5
Determination of the presence of a
7.5.1
N N N N N N N N N
switching component
Residual voltage 7.5.2 Y Y – Y Y – Y Y –
7.5.3
Front of wave sparkover voltage Y Y – Y Y – Y Y –
7.5.4/7.5.5
Limiting voltage with combination wave – – Y – – Y – – Y
Determination of the magnitude of the
7.6.2 N N N N N N N N N
follow current
6.2.6/7.6
3 Operating duty test
Preconditioning 7.6.4 7.7.1 Y Y – Y Y – Y Y –
6.2.3/6.2.4/7.6.5/
Class I and II operating duty test
Y Y – Y Y – Y Y –
7.6.6/7.7.1
Class III operating duty test 6.2.5/7.6.7/7.7.1 – – Y – – Y – – Y
4 Class I and II total discharge current 6.5.6/7.9.10 N N – N N – N N –
5 6.2.7/7.7.2
Test of thermal stability Y Y Y Y Y Y Y Y Y
6.2.7/6.2.11/
6* Short-circuit withstand capability test
Y Y Y Y Y Y Y Y Y
7.7.3
7* TOV test 6.2.7/6.5.5/7.7.6 Y Y Y Y Y Y Y Y Y
6.2.7/6.5.5/7.7.4
TOV test Y Y Y Y Y Y Y Y Y
8 Flexible cables and cords and their
7.9.1 – – – Y Y Y – – –
connection
6.3/6.5.1.1/
Mechanical strength
Y Y Y Y Y Y Y Y Y
7.9.2.1
6.3/6.5.1.1/
Mechanical strength
– – – Y Y Y – – –
7.9.2.2
6.5.1.3/7.9.7
Insulation resistance Y Y Y Y Y Y Y Y Y
Dielectric withstand 6.2.10/7.9.
...
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