SIST HD 60364-4-46:2017
(Main)Low-voltage electrical installations - Part 4-46: Protection for safety - Isolation and switching
Low-voltage electrical installations - Part 4-46: Protection for safety - Isolation and switching
This Harmonization Document deals with
– non-automatic local and remote isolation and switching measures which prevent or remove
dangers associated with electrical installations or electrically powered equipment; and
– switching for the control of circuits or equipment.
Errichten von Niederspannungsanlagen - Teil 4-46: Schutzmaßnahmen - Trennen und Schalten
Installations électriques à basse tension - Partie 4-46 : Protection pour assurer la sécurité - Sectionnement et commande
Nizkonapetostne električne inštalacije - 4-46. del: Zaščitni ukrepi - Ločevanje in stikanje
Ta harmonizacijski dokument obravnava
– ukrepe za neavtomatsko lokalno in oddaljeno ločevanje in stikanje, ki preprečujejo ali odstranjujejo nevarnosti v zvezi z električnimi inštalacijami ali električno opremo in
– stikanje za nadzor tokokrogov ali opreme.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST HD 60364-4-46:2017
01-januar-2017
1DGRPHãþD
SIST HD 384.4.46 S2:2002
1L]NRQDSHWRVWQHHOHNWULþQHLQãWDODFLMHGHO =DãþLWQLXNUHSL/RþHYDQMHLQ
VWLNDQMH
Low-voltage electrical installations - Part 4-46: Protection for safety - Isolation and
switching
Errichten von Niederspannungsanlagen - Teil 4-46: Schutzmaßnahmen - Trennen und
Schalten
Installations électriques à basse tension - Partie 4-46 : Protection pour assurer la
sécurité - Sectionnement et commande
Ta slovenski standard je istoveten z: HD 60364-4-46:2016
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST HD 60364-4-46:2017 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST HD 60364-4-46:2017
---------------------- Page: 2 ----------------------
SIST HD 60364-4-46:2017
HARMONIZATION DOCUMENT HD 60364-4-46
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
November 2016
ICS 29.120.50; 91.140.50 Supersedes HD 384.4.46 S2:2001
English Version
Low-voltage electrical installations -
Part 4-46: Protection for safety -
Isolation and switching
Installations électriques à basse tension - Errichten von Niederspannungsanlagen -
Partie 4-46 : Protection pour assurer la sécurité - Teil 4-46: Schutzmaßnahmen -
Sectionnement et commande Trennen und Schalten
This Harmonization Document was approved by CENELEC on 2016-07-04. CENELEC members are bound to comply with the
CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document 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 Harmonization Document 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, 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.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. HD 60364-4-46:2016 E
---------------------- Page: 3 ----------------------
SIST HD 60364-4-46:2017
HD 60364-4-46:2016 (E)
Contents Page
European foreword . 3
460 Introduction . 4
460.1 Scope . 4
460.2 Normative references . 4
461 General . 4
462 Isolation . 4
463 Functional switching (control) . 5
463.1 General . 5
463.2 Auxiliary circuits . 6
463.3 Motor control . 6
464 Switching off for mechanical maintenance . 6
465 Emergency switching off . 7
Annex A (informative) Explanation of emergency operation functions . 8
A.1 General . 8
A.2 Emergency operation . 8
A.3 Emergency stop . 8
A.4 Emergency start . 8
A.5 Emergency switching off . 8
A.6 Emergency switching on . 8
Annex B (normative) Special national conditions . 9
Annex C (informative) A-deviations . 11
2
---------------------- Page: 4 ----------------------
SIST HD 60364-4-46:2017
HD 60364-4-46:2016 (E)
European foreword
This document (HD 60364-4-46:2016) was prepared by CLC/TC 64 “Electrical installations and
protection against electric shock”.
The following dates are fixed:
— latest date by which the document has to be implemented (dop) 2017-05-11
at national level by publication of an identical national
standard or by endorsement
— latest date by which the national standards conflicting with (dow) 2019-11-11
the document have to be withdrawn
This document supersedes HD 384.4.46 S2:2001.
HD 60364-4-46:2016 includes the following significant technical changes with respect to the previous
edition: the contents of this document has been revised so that it only includes general requirements
on measures for isolation and switching to provide for the safety of persons, livestock and property.
NOTE Complementarily the text of HD 60364-5-537:2016 has been adapted to give requirements on
implementation of the measures provided in HD 60364-4-46:2016 and requirements for proper functioning, in
terms of selection and erection of electrical equipment for isolation and switching.
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.
3
---------------------- Page: 5 ----------------------
SIST HD 60364-4-46:2017
HD 60364-4-46:2016 (E)
460 Introduction
460.1 Scope
This Harmonization Document deals with
– non-automatic local and remote isolation and switching measures which prevent or remove
dangers associated with electrical installations or electrically powered equipment; and
– switching for the control of circuits or equipment.
460.2 Normative references
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.
HD 60364-4-41, Low-voltage electrical installations – Part 4-41: Protection for safety – Protection
against electric shock (IEC 60364-4-41)
HD 60364-5-53:2015-11, Low-voltage electrical installations – Part 5-53: Selection and erection of
electrical equipment - Switchgear and controlgear
HD 60364-5-557:2013 + A11:2016, Low-voltage electrical installations – Part 5-557: Selection and
erection of electrical equipment – Auxiliary circuits (IEC 60364-5-55:2011/A1:2012)
461 General
461.1 According to the intended function(s), every device provided for isolation or switching shall
comply with the relevant requirements of HD 60364-5-53.
NOTE Clause 537 of HD 60364–5-53:2015-11 refers to HD 384.5.537 S2, which is now replaced by
HD 60364-5-537:2016.
461.2 In TN-C systems and in the TN-C part of the TN-C-S systems, the PEN conductor shall not be
isolated or switched.
In TN-S systems and in the TN-S part of the TN-C-S systems, isolation or switching of the neutral
conductor is not required if protective equipotential bonding is installed and either
– the neutral conductor is reliably connected to earth by a low resistance to meet the disconnection
times of the protective devices according to the requirements of HD 60364-4-41 or
– the distribution system operator (DSO) declares that either the PEN or the N conductor of the
supply is reliably connected to earth by a low resistance to meet the disconnection times of the
protective devices according to the requirements of HD 60364-4-41.
462 Isolation
462.1 Each electrical installation shall have provisions for isolation from each supply.
462.2 Every circuit shall be provided with isolation means for all live conductors, except as detailed in
461.2.
Provisions may be made for isolation of a group of circuits by a common means, if the service
conditions allow this.
4
---------------------- Page: 6 ----------------------
SIST HD 60364-4-46:2017
HD 60364-4-46:2016 (E)
462.3 Suitable means shall be provided to prevent any equipment from being unwantedly or
unintentionally energized/operated.
462.4 Where residual electrical energy is potentially present, suitable means shall be provided for its
discharge.
Where relevant, a warning label indicating the discharge time or the delay required before the
enclosure may be opened shall be provided.
NOTE Storage units do not need to be discharged since they are considered to be supply sources.
463 Functional switching (control)
463.1 General
463.1.1 Functional switching shall be provided for each part of a circuit which may require to be
controlled independently of other parts of the installation.
463.1.2
...
SLOVENSKI STANDARD
oSIST prHD 60364-4-46:2014
01-december-2014
1DGRPHãþD
SIST HD 384.4.46 S2:2002
(OHNWULþQHLQãWDODFLMH]JUDGEGHO =DãþLWQLXNUHSL/RþHYDQMHLQVWLNDQMH
Low-voltage electrical installations - Part 4-46: Protection for safety - Isolation and
switching
Errichten von Niederspannungsanlagen - Teil 4-46: Schutzmaßnahmen - Trennen und
Schalten
Installations électriques à basse tension - Partie 4-46 : Protection pour assurer la
sécurité - Sectionnement et commande
Ta slovenski standard je istoveten z: prHD 60364-4-46:2014
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
oSIST prHD 60364-4-46:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prHD 60364-4-46:2014
---------------------- Page: 2 ----------------------
oSIST prHD 60364-4-46:2014
HARMONIZATION DOCUMENT DRAFT
prHD 60364-4-46
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
August 2014
ICS 29.120.50; 91.140.50 Will supersede HD 384.4.46 S2:2001
English Version
Low-voltage electrical installations - Part 4-46: Protection for
safety - Isolation and switching
Installations électriques à basse tension - Partie 4-46 : To be completed
Protection pour assurer la sécurité - Sectionnement et
commande
This draft Harmonization Document is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2015-01-16.
It has been drawn up by CLC/TC 64.
If this draft becomes a Harmonization Document, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for implementation of this Harmonization Document on a national level.
This draft Harmonization Document was established by CENELEC 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, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a Harmonization Document. It is distributed for review and comments. It is subject to change without notice
and shall not be referred to as a Harmonized Document.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 25364 Ref. No. prHD 60364-4-46:2014 E
---------------------- Page: 3 ----------------------
oSIST prHD 60364-4-46:2014
prHD 60364-4-46:2014 – 2 –
1 Foreword
2 This document (prHD 60364-4-46:2014) was prepared by CLC/TC 64 “Electrical installations
3 and protection against electric shock”.
4
5 This document is currently submitted to the enquiry.
6
7 This document will supersede HD 384.4.46 S2:2001.
8
9 Secretary note: During its last plenary meeting, CLC/TC 64 took the following decision: WG7
10 has prepared a first draft of the revision of HD 60364-4-46 that is now submitted to the
11 National Committees as first enquiry.
12 The text of this first enquiry of prHD 60364-4-46 has been kept separated from the
13 prHD 60364-5-537 since the present structure of HD 60364 is to be kept unchanged until
14 TC 64 decides otherwise.
15
---------------------- Page: 4 ----------------------
oSIST prHD 60364-4-46:2014
– 3 – prHD 60364-4-46:2014
16 460 Introduction
17 This chapter deals with non-automatic local and remote isolation and switching measures
18 which prevent or remove dangers associated with electrical installations or electrically
19 powered equipment.
20 461 General
21 461.1 According to the intended function(s), every device provided for isolation or switching
22 shall comply with the relevant requirements of Clause 537.
23 461.2 In TN-C systems and in the TN-C part of the TN-C-S systems, the PEN conductor shall
24 not be isolated or switched.
25 In TN-C-S and TN-S systems, the neutral conductor is not needed to be isolated or switched if
26 the supply network operator declares that either the PEN or the N conductor of the supply is
27 reliably connected to earth by a suitably low resistance.
28 This low resistance may be verified by measurement of the resistance of the earth electrode
29 in accordance with Clause 612.
30 461.3 The measures described in this chapter are not alternatives to the protective measures
31 described in Chapters 41 to 45 inclusive.
32 462 Isolation
33 462.1 Each electrical installation shall have provisions for isolation from each supply.
34 462.2 Every circuit shall be provided with a device capable of isolating each of the live supply
35 conductors, except as detailed in Clause 461.2.
36 Provisions may be made for isolation of a group of circuits by a common means, if the service
37 conditions allow this.
38 462.3 Suitable means shall be provided to prevent any equipment from being inadvertently or
39 unintentionally energized/operated.
40 Such precautions may include one or more of the following measures:
41 - location within a lockable space or enclosure.
42 - padlocking;
43 - warning notices.
44 Where used, short-circuiting and earthing may be considered as supplementary precautions.
45 462.4 Where, storage, residual or coupling electrical energy is potentially present, suitable
46 means shall be provided for the discharge (see details in Part 5-55).
47 463 Functional switching (control)
48 463.1 General
49 463.1.1 A functional switching device shall be provided for each part of a circuit which may
50 require to be controlled independently of other parts of the installation.
51 463.1.2 Functional switching devices need not necessarily switch off all live conductors of a
52 circuit. A single-pole switching device shall not be placed in the neutral conductor except for
53 lamp control circu
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.