HD 60364-5-52:2011

SLOVENSKI STANDARD
01-maj-2011
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SIST HD 384.5.52 S1:2000
SIST HD 384.5.52 S1:2000/A1:2000
SIST HD 384.5.523 S2:2002
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Low-voltage electrical installations -- Part 5-52: Selection and erection of electrical
equipment - Wiring systems
Installations électriques à basse-tension -- Partie 5-52: Choix et mise en oeuvre des
matériels électriques - Canalisations
Ta slovenski standard je istoveten z: HD 60364-5-52:2011
ICS:
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 60364-5-52
DOCUMENT D'HARMONISATION
February 2011
HARMONISIERUNGSDOKUMENT
ICS 13.260; 91.140.50 Supersedes HD 384.5.52 S1:1995 + A1:1998 + corr. Sep.1998, HD 384.5.523 S2:2001

English version
Low-voltage electrical installations -
Part 5-52: Selection and erection of electrical equipment -
Wiring systems
(IEC 60364-5-52:2009, modified + corrigendum Feb. 2011)

Installations électriques à basse-tension - Errichten von Niederspannungsanlagen -
Partie 5-52: Choix et mise en oeuvre des Teil 5-52: Auswahl und Errichtung
matériels électriques - elektrischer Betriebsmittel -
Canalisations Kabel- und Leitungsanlagen
(CEI 60364-5-52:2009, modifiée + (IEC 60364-5-52:2009, modifiziert +
corrigendum Feb. 2011) corrigendum Feb. 2011)

This Harmonization Document was approved by CENELEC on 2011-01-24. 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 Central Secretariat 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, 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

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 60364-5-52:2011 E
Foreword
The text of the International Standard IEC 60364-5-52:2009, prepared by IEC TC 64, Electrical
installations and protection against electric shock, together with common modifications prepared by the
Technical Committee CENELEC TC 64, Electrical installations and protection against electric shock, was
submitted to the formal vote and was approved by CENELEC as HD 60364-5-52 on 2011-01-24.
This European Standard supersedes HD 384.5.52 S1:1995 + A1:1998 and HD 384.5.523 S2:2001.
The main changes with respect to HD 384.5.52 S1:1995 + A1:1998 are as follows:
– Subclause 521.4 introduces minor changes with regard to busbar trunking systems and powertrack
systems.
– Subclause 523.6 introduces minor changes with regard to the sizing of cables where harmonic
currents are present.
– A new sublause 523.9 concerning single-core cables with a metallic covering has been introduced.
– Clause 525 introduces changes in the maximum value of voltage drop permitted between the origin of
the consumer's installation and the equipment which should not be greater than that given in the
relevant annex.
– Clause 526 introduces minor changes to electrical connections including additional exceptions for
inspection of connections and additional notes.
– Clause 528 introduces additional requirements with regard to proximity of underground power and
telecommunication cables.
– Clause 529 introduces minor changes to selection and erection of wiring systems in relation to
maintainability, including cleaning.
The following dates were fixed:
– latest date by which the existence of the HD
has to be announced at national level (doa)   2011-07-24
– latest date by which the HD has to be implemented
at national level by publication of a harmonized
national standard or by endorsement (dop) 2012-01-24
– latest date by which the national standards conflicting
with the HD have to be withdrawn (dow) 2014-01-24
__________
Endorsement notice
The text of the International Standard IEC 60364-5-52:2009 was approved by CENELEC as a
Harmonization Document with agreed common modifications as given below.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60332-3 series NOTE Harmonized in EN 60332-3 series (partially modified).
IEC 60332-3-24 NOTE Harmonized as EN 60332-3-24.
IEC 60364-4-43:2008 NOTE Harmonized as HD 60364-4-43:2010 (modified).
IEC 60364-5-51:2005 NOTE Harmonized as HD 60364-5-51:2009 (modified).
IEC 60364-7-715 NOTE Harmonized as HD 60364-7-715.

- 3 - HD 60364-5-52:2011
IEC 61000 series NOTE Harmonized in EN 61000 series (partially modified).
IEC 61386-24 NOTE Harmonized as EN 61386-24.
IEC 61535 NOTE Harmonized as EN 61535.
IEC 62305 series NOTE Harmonized in EN 62305 series (partially modified).

COMMON MODIFICATIONS
521.9.1
Add the following note:
NOTE Insulated flexible conductors or cores according to HD 516 may also be used as fixed installation.

528.2
Add the following new paragraph:
"In the case of proximity between cable distribution systems for radio and television signals and power
line systems, EN 50083 should be considered."

528.2
Add the following note:
NOTE For the connection of combined socket-outlets for telecommunication (also aerial) and power line systems, EN 41003 should
be considered.
Annex A - Table A.52.2 – Erection of wiring systems
Delete Table A.52.2.
Annex B - Table B52-18 – Current-carrying capacities
Table B.52.18, right column, line Number of circuits 16, change from 0.38 to 0.68.
Annex D - Formulae to express current-carrying capacities
Delete Annex D.
Add Annexes ZA to ZC below.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. 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

IEC 60228 - Conductors of insulated cables EN 60228 -

IEC 60287 Series Electric cables - Calculation of the current - -
rating
IEC 60287-2-1 - Electric cables - Calculation of the current - -
rating -
Part 2-1: Thermal resistance - Calculation of
thermal resistance
IEC 60287-3-1 - Electric cables - Calculation of the current - -
rating -
Part 3: Sections on operating conditions -
Section 1: Reference operating conditions and
selection of cable type
IEC 60332-1-1 - Tests on electric and optical fibre cables EN 60332-1-1 -
under fire conditions -
Part 1-1: Test for vertical flame propagation
for a single insulated wire or cable - Apparatus

IEC 60332-1-2 - Tests on electric and optical fibre cables EN 60332-1-2 -
under fire conditions -
Part 1-2: Test for vertical flame propagation
for a single insulated wire or cable -
Procedure for 1 kW pre-mixed flame

IEC 60364-1 (mod) 2005 Low-voltage electrical installations - HD 60364-1 2008
Part 1: Fundamental principles, assessment of
general characteristics, definitions

IEC 60364-4-41 2005 Low-voltage electrical installations - HD 60364-4-41 2007
(mod) Part 4-41: Protection for safety - Protection + corr. July 2007
against electric shock
IEC 60364-4-42 - Low voltage electrical installations - HD 60364-4-42 -
Part 4-42: Protection for safety - Protection
against thermal effects
IEC 60364-5-54 - Electrical installations of buildings - HD 60364-5-54 -
(mod) Part 5-54: Selection and erection of electrical
equipment - Earthing arrangements,
protective conductors and protective bonding
conductors
- 5 - HD 60364-5-52:2011
Publication Year Title EN/HD Year

IEC 60439-2 - Low-voltage switchgear and controlgear EN 60439-2 -
assemblies -
Part 2: Particular requirements for busbar
trunking systems (busways)
IEC 60449 - Voltage bands for electrical installations of HD 193 S2 -
buildings
IEC 60502 Series Power cables with extruded insulation and - -
their accessories for rated voltages from 1 kV
(Um = 1,2 kV) up to 30 kV (Um = 36 kV)

IEC 60529 - Degrees of protection provided by enclosures - -
(IP Code)
IEC 60570 (mod) - Electrical supply track systems for luminaires EN 60570 -

IEC 60702 Series Mineral insulated cables and their EN 60702 -
terminations with a rated voltage not
exceeding 750 V
IEC 60947-7 Series Low-voltage switchgear and controlgear - EN 60947-7 Series
Part 7: Ancillary equipment
IEC 60998 Series Connecting devices for low-voltage circuits EN 60998 Series
for household and similar purposes

IEC 61084 Series Cable trunking and ducting systems for - -
electrical installations
IEC 61386 Series Conduit systems for cable management EN 61386 Series

IEC 61534 Series Powertrack systems EN 61534 Series

IEC 61537 - Cable management - Cable tray systems and EN 61537 -
cable ladder systems
ISO 834 Series Fire-resistance tests - Elements of building - -
construction
Annex ZB
(normative)
Special national conditions
Special national condition: National characteristic or practice that cannot be changed even over a long
period, e.g. climatic conditions, electrical earthing conditions.

NOTE If it affects harmonization, it forms part of the Harmonization Document.

For the countries in which the relevant special national conditions apply these provisions are normative,
for other countries they are informative.

Country Clause Special national condition
In Norway the following additional requirements apply:
Norway 523.1
Special requirement may apply in Norway due to national building practice and
the extended use of insulation materials in building walls.
Germany
521.11 In Germany additional requirements apply (see annex to German Special
National Condition on Clause 521.x)
In Germany the following additional requirements apply:
521.12
"521.x Inherently short-circuit proof and inherently earth-fault-proof wiring

Where protective devices for the protection in case of short-circuit in
accordance with 473.2.2.1 of IEC 60364 are not used, cables and conductors
shall be laid inherently short-circuit proof and inherently earth-fault-proof.
The following types of wiring are regarded as inherently short-circuit proof and
inherently earth-fault proof:
a) Conductor arrangements where contact between the conductors and contact
with earthed parts are prevented and where no short-circuit is to be expected
due to external influences (e.g. falling parts);
b) Arrangement consisting of single-core cables, e.g. in accordance with
IEC 60502, single-core non-metallic -sheathed cables in accordance with
IEC 60227-4 or single-core rubber-insulated and sheathed flexible cables in
accordance with IEC 60245-4;
c) Cables and rubber-insulated and sheathed flexible cables laid so that they
are accessible but not in the vicinity of combustible materials and where the
risk of mechanical damage is prevented.
d) Conductor arrangement consisting of single-core non-sheathed cables of
suitable type of construction (e.g. special rubber-insulated cables in
1)
accordance with IEC 60XXX , rated voltage U /U at least 1,8/3 kV or
equivalent).
An arrangement of cables and insulated conductors which could burn out
without endangering their environment (e.g. cables in ground) is considered as
equivalent to inherently short-circuit proof and inherently earth-fault-proof wiring
with regard to safety."
1)
In preparation.
- 7 - HD 60364-5-52:2011
Country Clause Special national condition
521.13 In Germany the following additional requirements apply:
"521.13 Accessories
Boxes and enclosures for accessories, e.g. connecting boxes for housing
terminals, socket-outlets or switches shall comply with the requirements of
EN 60670.
Boxes and enclosures intended to be installed in concrete or in hollow walls,
shall have the following markings according to EN 60670-1 on the boxes and
enclosures or provided by the manufacturer on the smallest package unit or in
the instructions of the manufacturer
- for use in concrete: symbol 90 °C;
- for use in hollow walls: symbol H.

GP-enclosures according to EN 60670-24 (under preparation) are not allowed
to be installed in Germany.
Socket outlet-systems which accept the simultaneous connection of more than
one plug in the interface of one socket outlet are not allowed in Germany.
521.6 In Germany and the Netherlands in the case of basic-insulated conductors in
conduit systems, cable trunking systems and cable ducting systems, only the
conductors of one main circuit, including the auxiliary circuits associated with
this main circuit, may be laid in conduit or in single-channel trunking or in one
duct of a multi-channel trunking, except in electrical and enclosed operating
areas. The uncut conductors of several circuits may, however, be fed through
common through-run boxes.
SIST HD 60
...