HD 60364-4-42:2011/A11:2021
(Amendment)Low voltage electrical installations - Part 4-42: Protection for safety - Protection against thermal effects
Low voltage electrical installations - Part 4-42: Protection for safety - Protection against thermal effects
NEXT ACTION: TC action by 2021-11-01
2021-06-24 MDC: Document on hold awaiting BT approval of A-deviations
2019-10-01: upcoming CLC/TC 64 request to CLC/BT to proceed with a second formal vote.
Errichten von Niederspannungsanlagen - Teil 4-42: Schutzmaßnahmen - Schutz gegen thermische Auswirkungen
Installations électriques basse tension - Partie 4-42: Protection pour assurer la sécurité - Protection contre les effets thermiques
Nizkonapetostne električne inštalacije - 4-42. del: Zaščitni ukrepi - Zaščita pred toplotnimi učinki - Dopolnilo A
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2022
Nizkonapetostne električne inštalacije - 4-42. del: Zaščitni ukrepi - Zaščita pred
toplotnimi učinki - Dopolnilo A
Low voltage electrical installations - Part 4-42: Protection for safety - Protection against
thermal effects
Errichten von Niederspannungsanlagen - Teil 4-42: Schutzmaßnahmen - Schutz gegen
thermische Auswirkungen
Installations électriques basse tension - Partie 4-42: Protection pour assurer la sécurité -
Protection contre les effets thermiques
Ta slovenski standard je istoveten z: HD 60364-4-42:2011/A11:2021
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
HARMONIZATION DOCUMENT HD 60364-4-42:2011/A11
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
December 2021
ICS 29.120.50; 91.140.50
English Version
Low voltage electrical installations - Part 4-42: Protection for
safety - Protection against thermal effects
Installations électriques basse tension - Partie 4-42: Errichten von Niederspannungsanlagen - Teil 4-42:
Protection pour assurer la sécurité - Protection contre les Schutzmaßnahmen - Schutz gegen thermische
effets thermiques Auswirkungen
This amendment A11 modifies the Harmonization Document HD 60364-4-42:2011; it was approved by CENELEC on 2021-07-13.
CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of
this amendment at national level.
Up-to-date lists and bibliographical references concerning such national implementations 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).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. HD 60364-4-42:2011/A11:2021 E
Contents Page
European foreword . 3
1 Modifications to the “Foreword” . 4
2 Modification to Clause 420.1, “Scope” . 4
3 Modification to Clause 420.2, “Normative references” . 4
4 Modification to 422.2.1 . 4
5 Modification to 422.3.4 . 5
6 Modification to 422.5.1 . 5
7 Modification to Annex ZA, “Normative references to international publications with their corresponding
European publications” . 5
8 Additions to Annex ZB, “Special National Conditions” . 5
9 Additions to Annex ZC, “A-Deviations” . 8
10 Modifications to the “Bibliography” . 9
European foreword
This document (HD 60364-4-42:2011/A11:2021) has been prepared by CLC/TC 64 “Electrical installations and
protection against electric shock”.
The following dates are fixed:
• latest date by which this document has to (dop) 2022-06-17
be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2024-12-17
standards conflicting with this 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 shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
1 Modifications to the “Foreword”
At the end of the third paragraph of the Foreword (starting with “The main changes with respect to the previous
edition are listed below”), add the following new bullet point and Note:
— “For cables, the provisions of the Construction Products Regulation ((EU) No. 305/2011 (CPR)) came fully
into force on 1st July 2017 in respect of Reaction to Fire. These requirements are now expressed by
reference to the relevant class according to EN 13501-6.
NOTE See also Note 3 in the Scope.”
2 Modification to Clause 420.1, “Scope”
In the Scope, add the following after Note 2:
“In respect of cables and their reaction to fire, these protective measures can be expressed by reference to
the Construction Products Regulation (CPR), and the relevant classes according to EN 13501-6.
NOTE 3 Whilst the CPR requires the manufacturer to declare the reaction to fire performance of the cable in
accordance with procedures and classifications that are common across the EU, it is the responsibility of the Member State
to determine which classification is required for any particular application or installation. National statutory requirements
could therefore override the levels quoted here.”
3 Modification to Clause 420.2, “Normative references”
In Clause 420.2, add the following references:
“EN 13501-6, Fire classification of construction products and building elements - Part 6: Classification using
data from reaction to fire tests on power, control and communication cables
EN 60670-1, Boxes and enclosures for electrical accessories for household and similar fixed electrical
installations - Part 1: General requirements (IEC 60670-1)”
4 Modification to 422.2.1
In 422.2.1, replace Note 1 with the following Note:
“
NOTE 1
For cables, compliance with this requirement is achieved by using at least class C -s1,d2,a1 for cables installed in
ca
environment BD2, BD3, and to apply at least class B2 -s1,d2,a1 for cables installed in environment BD4.
ca
For conduit systems, cable trunking systems, cable tray systems and powertrack systems, compliance with this
requirement is achieved by using the following products:
— conduit systems classified as non-flame propagating according to EN 61386 series;
— cable trunking systems classified as non-flame propagating according to EN 50085 series;
— cable tray systems and cable ladder systems classified as non-flame propagating according to EN 61537;
— powertrack systems complying with EN 61534 series.”
Replace Note 3 with the following normative text:
“It is recommended to apply at least class C -s1,d2,a1 for cables installed in environment BD 2 or BD 3 and
ca
to apply at least class B2 -s1,d2,a1for cables installed in environment BD 4.”
ca
5 Modification to 422.3.4
In 422.3.4, replace the first bullet point:
— “Cables shall satisfy the test under fire conditions specified in EN 60332 series”
with:
— “Cables shall satisfy as a minimum the fire test requirements of class E as described in EN 13501-6”
ca
Replace Note 1 with the following normative text:
“Where the risk of flame propagation is high, e.g. in long vertical runs of bunched cables, it is recommended
to apply cables at least fulfilling the requirements of class C -s1,d2,a1 as defined in EN 13501-6.”
ca
Delete Note 2.
6 Modification to 422.5.1
Replace the Note with the following normative text:
“Fire detectors may be provided which ensure the implementation of measures for preventing propagation of
fire, for example, the closing of fire-proof shutters in ducts, building voids and the like. Boxes and enclosures
according to EN 60670-1 for hollow walls shall be used. Cables shall fulfil the requirements of EN 13501-6, at
least a minimum of a class C -s1,d2,a1.”
ca
7 Modification to Annex ZA, “Normative references to international publications
with their corresponding European publications”
Add the following new references to the Annex ZA:
“
Publication Year Title EN/HD Year
Fire classification of construction products and EN 13501-6 -
building elements - Part 6: Classification using
data from reaction to fire tests on electric cables
Boxes and enclosures for electrical EN 60670-1 -
accessories for household and similar fixed
electrical installations - Part 1: General
requirements
“
8 Additions to Annex ZB, “Special National Conditions”
Add the following Special National Conditions:
“
Country Clause Special national condition
420.1 In the Netherlands, the class for “reaction to fire” in accordance to EN 13501-6 shall
NL
comply with NEN 8012.
SK 420.1 In Slovakia, for the fire protection of buildings STN 92 0203 applies.
AT 422.2.1 In Austria, for wiring in escape routes there are special conditions established by federal
state authorities.
Country Clause Special national condition
422.2.1 Change the wording NOTE 1 for cables by the following:
Note 1 For cables
It is recommended to use cables in accordance with clause 4.1 of EN 50575: 2014 + A1:
2016 for reasons of evacuation according to 422.2, which have at least performance
DE
B1 -s1 (flame-retardant and with low smoke emission). Cable systems that supply
ca
circuits for safety purposes must be protected or designed in such a way that they can
fulfill their function for the duration of the national fire protection regulations or, if these
regulations do not exist, for a duration of at least 1 hour.
422.2.1 In Switzerland:
CH
d2 is considered as “critical behaviour” and therefore forbidden in escape routes.
422.2.1 In the UK, 422.2.1 is replaced with the following:
422.2.1 Only cables that meet the following requirements shall be installed in protected
escape routes:
(i) cables meeting the requirements of 560.8.1 or cables with resistance to flame
propagation according to the recommended requirements of the relevant part of BS EN
60332-3 (series) or, where cable management systems according to (i) or (ii) below are
used, to the recommended requirements of BS EN 60332-1-2 and
(ii) a minimum of 60 % light transmittance when tested in accordance with BS EN 61034-2.
Cables in protected escape routes shall be as short as practicable. Cables encroaching
on escape routes shall not be installed within arm’s reach unless they are provided with
protection against mechanical damage likely to occur during an evacuation.
Where used in protected escape routes, cable management systems shall be one or more
of the following types and shall be of limited smoke production so as not to inhibit escape:
(i) conduit systems classified as non-flame propagating according to BS EN 61386
GB
(ii) cable trunking systems and cable ducting systems classified as non-flame propagating
according to BS EN 50085
(iii)cable tray and cable ladder systems classified as non-flame propagating according to
BS EN 61537
(iv) powertrack systems meeting the requirements of BS EN 61534.
NOTE 1 Non-fire resisting cables need to satisfy the requirements of the CPR in respect
of their reaction to fire. See Appendix 2, item 17. There are no requirements in the CPR
for fire resisting cables described in Regulation 560.8.
NOTE 2 Ferrous metal, e.g. steel, is deemed to be an example of a material having
limited smoke production.
Cables that are supplying safety circuits shall have a resistance to fire rating of either the
time authorized by regulations for building elements or British Standards for the circuits or
one hour in the absence of such a regulation or standard. Refer to Regulation 560.8 for
such cables.
422.2.1 In Italy, the installation in environment BD2, BD3 and BD4 shall comply with Part 751 of
IT
Italian Standard CEI 64-8
422.2.1 In Norway, compliance with the requirement for being non-flame propagating is, for
cables, achieved by applying cables that at least fulfil the requirements of class
NO
Note 1
D -s2,d2,a2 as defined in NS-EN 13501-6.
ca
422.2.1 In Slovakia, for the electrical wirings used for the purpose of securing the permanent
SK
supply of electric power during fire, additional requirements of STN 92 0203 applies.
422.2.1 In Slovakia, for the management cables systems used for cables B2 -s1,d1,a1,
ca
SK
additional requirements of STN 92 0203 for reduced content of halogen elements in
Note 1
combustible materials of management cables systems applies.
Country Clause Special national condition
422.2.1 normative text replacing note 3
Note 3 In Norway, cables installed in environment classified as BD2, BD3 or BD4 according to
NEK 400-5-51:2018, table 51A shall at least fulfil the requirements
...
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