SIST EN 60439-1:2000/A1:2004
(Amendment)Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999/A1:2004)
Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999/A1:2004)
D119/049
Niederspannungs-Schaltgerätekombinationen - Teil 1: Typgeprüfte und partiell typgeprüfte Kombinationen (IEC 60439-1:1999/A1:2004)
Ensembles d'appareillage à basse tension - Partie 1: Ensembles de série et ensembles dérivés de série (CEI 60439-1:1999/A1:2004)
Sestavi nizkonapetostnih stikalnih in krmilnih naprav - 1. del: Tipsko preskušeni in delno tipsko preskušeni sestavi (IEC 60439-1:1999/A1:2004)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60439-1:2000/A1:2004
01-junij-2004
Sestavi nizkonapetostnih stikalnih in krmilnih naprav - 1. del: Tipsko preskušeni in
delno tipsko preskušeni sestavi (IEC 60439-1:1999/A1:2004)
Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially
type-tested assemblies (IEC 60439-1:1999/A1:2004)
Niederspannungs-Schaltgerätekombinationen - Teil 1: Typgeprüfte und partiell
typgeprüfte Kombinationen (IEC 60439-1:1999/A1:2004)
Ensembles d'appareillage à basse tension - Partie 1: Ensembles de série et ensembles
dérivés de série (CEI 60439-1:1999/A1:2004)
Ta slovenski standard je istoveten z: EN 60439-1:1999/A1:2004
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN 60439-1:2000/A1:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60439-1:2000/A1:2004
---------------------- Page: 2 ----------------------
SIST EN 60439-1:2000/A1:2004
EUROPEAN STANDARD EN 60439-1/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2004
ICS 29.130.20
English version
Low-voltage switchgear and controlgear assemblies
Part 1: Type-tested and partially type-tested assemblies
(IEC 60439-1:1999/A1:2004)
Ensembles d'appareillage à basse tension Niederspannung-
Partie 1: Ensembles de série Schaltgerätekombinationen
et ensembles dérivés de série Teil 1: Typgeprüfte und partiell typgeprüfte
(CEI 60439-1:1999/A1:2004) Kombinationen
(IEC 60439-1:1999/A1:2004)
This amendment A1 modifies the European Standard EN 60439-1:1999; it was approved by CENELEC
on 2004-03-16. 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, 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
© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60439-1:1999/A1:2004 E
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SIST EN 60439-1:2000/A1:2004
EN 60439-1:1999/A1:2004 - 2 -
Foreword
The text of document 17D/294/FDIS, future amendment 1 to IEC 60439-1:1999, prepared by SC 17D,
Low-voltage switchgear and controlgear assemblies, of IEC TC 17, Switchgear and controlgear, was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to
EN 60439-1:1999 on 2004-03-16.
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) 2005-01-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2007-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of amendment 1:2004 to the International Standard IEC 60439-1:1999 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
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SIST EN 60439-1:2000/A1:2004
- 3 - EN 60439-1:1999/A1:2004
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
Delete:
- IEC 60050 (826): 1982
- IEC 60750:1983
- IEC 61000-4-3:1993
- CISPR 11:1990
Publication Year Title EN/HD Year
Add:
IEC 60204-1 1997 Safety of machinery - Electrical EN 60204-1 1997
equipment of machines + corr. September 1998
Part 1: General requirements
IEC 60695-2-10 2000 Fire hazard testing EN 60695-2-10 2001
Part 2-10: Glowing/hot-wire based test
methods - Glow-wire apparatus and
common test procedure
IEC 60695-2-11 2000 Part 2-11: Glowing/hot-wire based test EN 60695-2-11 2001
methods - Glow-wire flammability test
method for end-products
IEC 61000-3-2 2000 Electromagnetic compatibility (EMC) EN 61000-3-2 2000
(mod) Part 3-2: Limits - Limits for harmonic
current emissions (equipment input
current up to and including 16 A per
phase)
IEC 61000-4-3 2002 Part 4-3: Testing and measurement EN 61000-4-3 2002
techniques - Radiated, radio-frequency,
electromagnetic field immunity test
IEC 61000-4-6 2003 Part 4-6: Testing and measurement - -
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
IEC 61000-4-8 1993 Part 4-8: Testing and measurement EN 61000-4-8 1993
techniques - Power frequency magnetic
field immunity test
IEC 61000-4-11 1994 Part 4-11: Testing and measurement EN 61000-4-11 1994
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
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SIST EN 60439-1:2000/A1:2004
EN 60439-1:1999/A1:2004 - 4 -
Publication Year Title EN/HD Year
Add:
IEC 61000-4-13 2002 Part 4-13: Testing and measurement EN 61000-4-13 2002
techniques - Harmonics and
interharmonics including mains signalling
at a.c. power port, low frequency
immunity tests
IEC 61000-6-3 1996 Part 6-3: Generic standards - Emission EN 61000-6-3 2001
(mod) standard for residential, commercial and
light-industrial environments
IEC 61000-6-4 1997 Part 6-4: Generic standards - Emission EN 61000-6-4 2001
(mod) standard for industrial environments
IEC 61082 series Preparation of documents used in EN 61082 series
electrotechnology
IEC 61346-1 1996 Industrial systems, installations and EN 61346-1 1996
equipment and industrial products -
Structuring principles and reference
designations
Part 1: Basic rules
CISPR 11 (mod) 1997 Industrial, scientific and medical (ISM) EN 55011 1998
radio-frequency equipment - Radio
disturbance characteristics - Limits and
methods of measurement
A1 1999 A1 1999
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SIST EN 60439-1:2000/A1:2004
NORME CEI
INTERNATIONALE IEC
60439-1
INTERNATIONAL
1999
STANDARD
AMENDEMENT 1
AMENDMENT 1
2004-01
Amendement 1
Ensembles d'appareillage à basse tension –
Partie 1:
Ensembles de série et ensembles dérivés de série
Amendment 1
Low-voltage switchgear and
controlgear assemblies –
Part 1:
Type-tested and partially type-tested assemblies
IEC 2004 Droits de reproduction réservés Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
U
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 3 –
FOREWORD
This amendment has been prepared by subcommittee 17D: Low-voltage switchgear and
controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear.
The text of this amendment is based on the following documents:
FDIS Report on voting
17D/294/FDIS 17D/296/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 the base publication and its amendments will
remain unchanged until 2006. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
The contents of the corrigendum of November 2004 have been included in this copy.
_____________
Page 5
CONTENTS
Add the title of Annex H as follows:
Annex H (normative) Electromagnetic compatibility (EMC)
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 5 –
Page 13
1.1 Scope and object
Delete the following text from the fifth paragraph:
“for machine tools”.
This second correction applies to the French text only.
Add, after the fifth paragraph, the following new paragraph:
This standard applies also to ASSEMBLIES designed for electrical equipment of machines.
However, where applicable the additional requirements of IEC 60204-1 have to be fulfilled.
1.2 Normative references
Delete from the existing list the following standards:
IEC 60050(826):1982
IEC 60750:1983
IEC 61000-4-3:1995
CISPR 11:1990
Add to the existing list the titles of the following standards:
IEC 60204-1:1997, Safety of machinery – Electrical equipment of machines – Part 1: General
requirements
IEC 60695-2-10:2000, Fire hazard testing - Part 2-10: Glowing/hot-wire based test methods -
Glow-wire apparatus and common test procedure
IEC 60695-2-11:2000, Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods -
Glow-wire flammability test method for end-products
IEC 61000-3-2:2000, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for
harmonic current emissions (equipment input current ≤16 A per phase)
IEC 61000-4-3:2002, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-6:2003, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measure-
ment techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8:1993, Electromagnetic compatibility (EMC) – Part 4-8: Testing and measure-
ment techniques – Power frequency magnetic field immunity test
IEC 61000-4-11:1994, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measure-
ment techniques – Voltage dips, short interruptions and voltage variation immunity tests
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 7 –
IEC 61000-4-13:2002, Electromagnetic compatibility (EMC) – Part 4-13: Testing and measure-
ment techniques – Harmonics and interharmonics including mains signalling at a.c. power port,
low-frequency immunity tests
IEC 61000-6-3:1996, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –
Emission standard for residential, commercial and light-industrial environments
IEC 61000-6-4:1997, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards –
Emission standard for industrial environments
IEC 61082 (all parts), Preparation of documents used in electrotechnology
IEC 61346-1:1996, Industrial systems, installation and equipment and industrial products –
Structuring principles and reference designations – Part 1: Basic rules
CISPR 11:1997, Industrial, scientific and medical (ISM) radio-frequency equipment –
Electromagnetic disturbance characteristics – Limits and methods of measurement
Amendment 1 (1999)
Page 21
2.1.4
busbar
This correction applies to the French text only.
2.1.9
test situation
Replace the existing definition 2.1.9 by the following new definition:
condition of an ASSEMBLY or part of it in which the relevant main circuits are open on its supply
side but not necessarily isolated whilst the associated auxiliary circuits are connected, allowing
tests of the operation of incorporated devices
2.1.10
disconnected situation
Replace the existing title and text of definition 2.1.10 as follows:
2.1.10
isolated situation
condition of an ASSEMBLY or part of it in which the relevant main circuits are isolated on their
supply side and the associated auxiliary circuits are also isolated
Pages 23, 25 and 27
Remove all annex C figure references attached to definitions.
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 9 –
Page 23
2.2.7
withdrawable part
Replace the existing definition 2.2.7 by the following new definition:
removable part which can be moved from the connected position to the isolated position and to
a test position, if any, whilst remaining mechanically attached to the ASSEMBLY
Delete the NOTE.
2.2.9
test position
Replace, in the text of this definition, the phrase “but not necessarily disconnected (isolated)”
by “but not necessarily isolated”.
2.2.10
disconnected position (isolated position)
Replace the existing term and text of definition 2.2.10 as follows:
2.2.10
isolated position
position of a withdrawable part in which an isolating distance (see 7.1.2.2) is established in
main and auxiliary circuits on its supply side, the withdrawable part remaining mechanically
attached to the ASSEMBLY
Page 25
2.2.12.3
withdrawable connection
Replace the existing definition 2.2.12.3 by the following new definition:
connection which is connected or disconnected by bringing the functional unit into the
connected or isolated situation
2.3.2
dead-front ASSEMBLY
Delete the words "of at least IP 2X".
2.3.3
enclosed ASSEMBLY
Delete the words: "of at least IP 2X”.
Page 27
2.4.5
enclosure
Replace the existing definition 2.4.5 by the following new definition:
housing affording the type and degree of protection suitable for the intended application
[IEV 195-02-35]
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 11 –
Page 29
2.4.11
barrier
Replace the existing term and definition 2.4.11 by the following:
2.4.11
(electrically) protective barrier
part providing protection against direct contact from any usual direction of access
[IEV 195-06-15]
2.4.12
obstacle
Replace the existing term and definition 2.4.12 by the following:
2.4.12
(electrically) protective obstacle
part preventing unintentional direct contact, but not preventing direct contact by deliberate
action
[IEV 195-06-16]
Page 31
2.4.17
insertion interlock
Replace the words "fixed part" by "location".
Page 33
2.6.3
protective conductor (PE)
Replace the existing term and definition 2.6.3 by the following:
2.6.3
protective conductor
(identification: PE)
conductor provided for purposes of safety, for example protection against electric shock
[IEV 195-02-09]
NOTE As an example, the protective conductor can electrically connect the following parts:
- exposed conductive parts;
- extraneous conductive parts;
- main earthing terminal;
- earth electrode;
- earthed point of the source or artificial neutral.
2.6.4
neutral conductor (N)
Replace the existing term and definition 2.6.4 by the following:
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 13 –
2.6.4
neutral conductor
conductor electrically connected to the neutral point and capable of contributing to the
distribution of electric energy
[IEV 195-02-06]
2.6.5
PEN conductor
Replace the existing definition 2.6.5 by the following new definition:
conductor combining the functions of both a protective earthing conductor and a neutral
conductor
[IEV 195-02-12]
Page 39
Add, after definition 2.10.3, the following new term:
2.11
electromagnetic compatibility (EMC)
NOTE For EMC related terms and definitions, see annex H.
3 Classification of ASSEMBLIES
This correction applies to the French text only.
Page 41
4.1.2 Rated insulation voltage (U ) (of a circuit of an ASSEMBLY)
i
Delete, in the first sentence of the second paragraph, the word "maximum".
Replace, in the second sentence of the second paragraph, "rated operational voltage" by
"working voltage".
Add, after the NOTE, the following new paragraph:
For polyphase circuits, it is stated as the voltage between phases.
Page 43
4.3 Rated short-time current (I ) (of a circuit of an ASSEMBLY)
cw
Insert, in the title, in the first paragraph and in NOTES 1 and 2 the word “withstand” to read
“rated short-time withstand current“.
Delete the last sentence of NOTE 2.
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 15 –
4.5 Rated conditional short-circuit current (I ) (of a circuit of an ASSEMBLY)
cc
This correction applies to the French text only.
4.6 Rated fused short-circuit current (I ) (of a circuit of an ASSEMBLY)
cf
Replace the text of this subclause with the word “Void”.
Page 45
5.1 Nameplates
Delete item 5.1 h).
Item 5.1 j)
Replace “of each circuit“ by ”of each main circuit”.
Page 47
Item 5.1 m)
Replace the text of item 5.1 m) as follows:
measures for protection against electric shock (see 7.4);
Item 5.1 r)
This correction applies to the French text only.
Item 5.1 t)
Replace the text of item 5.1 t) by the following:
environment A and/or B (see 7.10.1).
5.2 Markings
Replace the second paragraph by the following:
Where items of equipment of the ASSEMBLY are designated, the designations used shall be
identical with those in IEC 61346-1 and with those in the wiring diagrams which shall be in
accordance with IEC 61082.
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 17 –
5.3 Instructions for installation, operation and maintenance
Add, at the end of this subclause, the following new paragraphs:
The ASSEMBLY manufacturer shall specify the measures to be taken, if any, with regard to EMC
associated with the installation, operation and maintenance of the ASSEMBLY.
If an ASSEMBLY specifically intended for environment A is to be used in environment B the
following warning shall be included in the operating instructions:
Warning:
This is a product for environment A. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
Page 51
6.2.10 Consideration of appropriate remedies
Replace the title and text of subclause 6.2.10 as follows:
6.2.10 Consideration of appropriate remedies against:
– conducted and radiated disturbances other than EMC;
– EMC disturbances in environments other then those described in annex H.
Page 53
7.1.1 General
Add the following sentence at the end of the first paragraph:
Parts of ASSEMBLIES which are made of insulating material shall provide a specified degree of
resistance to abnormal heat and fire.
7.1.2.1 Clearances and creepage distances
Replace, in the second paragraph, "or impulse withstand voltages" by "or rated impulse
withstand voltages (U )".
imp
Page 55
7.1.2.3 Dielectric properties
Replace, in the second line of the first paragraph, "7.1.2.3.7" by "7.1.2.3.6".
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 19 –
Page 59
7.1.3.2
Replace the first sentence of the second paragraph as follows:
Where aluminium conductors are used, terminals which cater for the maximum size of solid or
stranded conductors given in table A.1 are usually dimensionally adequate.
7.1.3.3
Add the following NOTE at the end of this subclause:
NOTE In the USA national regulations define the minimum wire bending space requirements for the proper
connection of external conductors.
Page 61
Add, after subclause 7.1.3.7, the following new subclause:
7.1.4 Resistance to abnormal heat and fire
Parts of insulating materials which might be exposed to thermal stresses due to electrical
effects, and the deterioration of which might impair the safety of the ASSEMBLY, shall not be
adversely affected by abnormal heat and by fire.
The suitability of these parts shall be verified by test in accordance with IEC 60695-2-10 and
IEC 60695-2-11.
Parts of insulating materials necessary to retain current-carrying parts in position shall conform
to the glow-wire test of 8.2.9 at a test temperature of 960 °C.
Parts of insulating materials other than those specified in the previous paragraph, including
parts necessary to retain the protective conductor, shall conform to the requirements of the
glow-wire test of 8.2.9 at a temperature of 650 °C.
This requirement does not apply to parts or components, which have been previously tested
according to this standard or according to their own product standard.
For small parts (having surface dimensions not exceeding 14 mm x 14 mm), a different test
may be selected (for example, the needle flame test of IEC 60695-2-2). The same procedure
may be applicable for other practical reasons where the metal material of a part is large
compared to the insulating material.
7.2.1.2
Insert in the first sentence after the word “ASSEMBLY” the following new text:
, or from the front of a dead-front ASSEMBLY,
---------------------- Page: 16 ----------------------
SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 21 –
Page 63
Table 2 – Temperature-rise limits
Replace the first sentence under the right-hand column (Temperature rise) by the following:
In accordance with the relevant product standard requirements for the individual components
or, in accordance with the component manufacturer's instructions, taking into consideration the
temperature in the ASSEMBLY
Replace the existing footnotes 3) and 4) by the following:
3)
Manual operating means within ASSEMBLIES which are only accessible after the ASSEMBLY has been opened, for
example draw-out handles which are operated infrequently, are allowed to assume a 25 K increase on these
temperature-rise limits.
4)
Unless otherwise specified, in the case of covers and enclosures, which are accessible but need not be touched
during normal operation, a 10 K increase on these temperature-rise limits is permissible.
6
)
Insert “ ” in column 2, row 1, after “with the manufacturer’s instructions” against the term “Built-
)
1) 5) 6
in components “ in column 1, and add, after footnote , the following new footnote :
6)
For temperature-rise tests according to 8.2.1, the temperature-rise limits have to be specified by the
manufacturer of the ASSEMBLY.
7)
Insert “ ” in column 2, row 3, after “mechanical strength of conducting material” against the
7)
term “Busbars and conductors etc.” in column 1, and add the following new footnote :
7)
Assuming all other criteria listed are met, a maximum temperature rise of 105 K for bare copper busbars and
conductors shall not be exceeded. The 105 K relates to the temperature above which annealing of copper is likely
to occur.
Page 67
7.4.2.2.3
Replace in the second line of item b), the word “disconnected” by the word “isolated”.
Page 69
7.4.3.1.5
Replace, on page 71, in the last line of item b) the words “disconnected position (isolated
position) inclusively.“ by “isolated position inclusively.”.
Replace in item c), second paragraph, the second sentence starting “It is recommended
that…“ by the following:
It is recommended that these parts be fitted with a protective conductor (PE) whose cross-
sectional area is in accordance with table 3A depending on the highest rated operational
current I of the apparatus.
e
7.4.3.1.6
Replace in the first line the word "sheathing" by "metal sheathing".
---------------------- Page: 17 ----------------------
SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 23 –
7.4.3.1.7
Delete, on page 73, under item a), first paragraph, the second sentence which begins “If
table 3 … “.
Table 3 – Cross-sectional area of protective conductors (PE, PEN)
Replace the last line as follows:
800 < S S/4
Item a)
Insert, after the third dashed item, the following new dashed item:
− table 3 assumes that the neutral conductor currents do not exceed 30 % of the phase
currents.
Page 75
7.4.3.1.10
Replace, in the first line, “Accessible conductive parts” by “Exposed conductive parts”.
7.4.3.2.2 Protection by total insulation*
Replace, on page 77, item d), in the last line of the first paragraph, the word “IP 3XD” by “IP
2XC”.
Page 79
7.4.6.2 Requirements related to accessibility for maintenance
Replace, in the first line, “a disconnected functional unit” by “an isolated functional unit”.
Page 83
7.5.2.1.2
Item a)
Replace in the text and in the NOTE of item a) "rated short-time current" by "rated short-time
withstand current".
Delete item c).
Replace, at the beginning of the last paragraph, “For items b) and c),” by the following:
For item b),
---------------------- Page: 18 ----------------------
SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 25 –
7.5.3 Relationship between peak withstand current and short-time withstand current
Replace the title and text of subclause 7.5.3 as follows:
7.5.3 Relationship between peak current and short-circuit current
For determining the electrodynamic stresses, the value of peak current shall be obtained by
multiplying the short-circuit current by the factor n. Standard values for the factor n and the
corresponding power factor are given in table 4.
Page 87
7.5.5.3 Selection and installation of non-protected active conductors to reduce the
possibility of short circuits
Replace, in line 3, the word “integral” by the word “internal”.
Table 5 – Conductor selection and installation requirements
Replace in the second row of the left column "above 90 °C" by "of at least 90 °C".
Replace the second paragraph of the second row of the right column by the following:
These conductors may only be loaded such that an operating temperature of 80 % of the
maximum permissible conductor operating temperature is not exceeded.
Replace in the fourth row, of the left column "FTFE" by "ethylene tetrafluoro ethylene (ETFE)"
7.6.1 Selection of switching devices and components
Insert, in the second paragraph after ’rated currents’, the words “rated frequency,”.
Page 91
7.6.4.1 Design
Replace in the first paragraph, the word “disconnected” by the word “isolated”.
Delete NOTE 1.
Renumber NOTE 2 as NOTE 1.
Replace, on page 93, in the second paragraph, the word “disconnected” by the word “isolated”.
---------------------- Page: 19 ----------------------
SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 27 –
7.6.4.3 Degree of protection
Replace, in the second paragraph, the word “disconnected” by the word “isolated”.
Page 95
Table 6 – Electrical conditions for the different positions of withdrawable parts
Replace the heading of column 5 by the following new heading:
Isolated position
(see 2.2.10)”.
Replace the words “disconnected (isolated)” in the footnote by “isolated” (occurs twice).
Page 97
7.6.5.3 Direction of operation and indication of switching positions
Replace the existing title and text by the following:
7.6.5.3 Direction of operation and indication of operational positions
The operational positions of components and devices shall be clearly identified. If the direction
of operation is not in accordance with IEC 60447, then this direction shall be clearly identified.
7.7 Internal separation of ASSEMBLIES by barriers or partitions
Delete the first sentence after the dashed items.
Add, on page 99, the following table title:
Table 6A – Forms of internal separation
Under the left-hand column:
In row 1, replace “No separation” by “No internal separation”.
In row 3, replace the second sentence as follows:
Separation of terminals for external conductors from the functional units, but not from those of
other functional units
Replace the text in row 4 as follows:
Separation of busbars from all functional units and separation of all functional units from one
another. Separation of terminals for external conductors associated with a functional unit from
those of any other functional unit and the busbars.
Replace, in the third paragraph after the table, the word “disconnected” by the word “isolated”.
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SIST EN 60439-1:2000/A1:2004
60439-1 Amend. 1 IEC:2004 – 29 –
Page 101
7.8.3.2
Delete the second sentence.
Page 105
7.10 Electromagnetic compatibility (EMC)
Replace the text of this subclause by the following:
7.10.1 General
For the majority of ASSEMBY applications falling within the scope of this standard, two sets of
environmental conditions are considered:
a) Environment A;
b) Environment B.
Environment A: relates to low-voltage non-public or industrial networks/locations/installations
including highly disturbing sources.
NOTE 1 Environment A corresponds to Equipment Class A in CISPR 11 and in IEC 61000-6-4.
NOTE 2 Industrial locations are characterized by one or more of the following conditions:
− industrial, scientific and medical apparatus, e.g. working machines are present;
− heavy inductive or capacitive loads are frequently switched;
− currents and associated magnetic fields are high.
Environment B: relates to low-voltage public networks such as domestic, commercial and light
industrial locations/installations. Highly disturbing sources such as arc welders are not covered
by this environment.
NOTE 3 Environment B corresponds to Equipment Class B in CISPR 11 and in IEC 61000-6-3.
NOTE 4 The following list, although not comprehensive, gives an indication of locations which are included:
− residential properties, e.g. houses, apartments;
− retail outlets, e.g. shops, supermarkets;
− business premises, e.g. offices, banks;
− areas of public entertainment, e.g. cinemas, public bars, dance halls;
− outdoor locations, e.g. petrol stations, car parks, sport centres;
− light-industrial locatio
...
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