SIST HD 603 S1:1998/A3:2007

Distribution cables of rated voltage 0,6/1 kV

Merged with HD 603 S1:1994/AA (pr=20605) for publication as one single document

Energieverteilungskabel mit Nennspannungen 0,6/1 kV

Câbles de distribution de tension nominale 0,6/1 kV

Distribucijski kabli za naznačeno napetost 0,6/1 kV

Opomba: Standard SIST HD 603 S1:1998/A3:2007 se uporablja, dokler ga ne razveljavi in nadomesti novi standard. Predviden datum razveljavitve HD 603 S1:1994/A3:2007 je bil 28.2.2017.
Nanaša se na kable za naznačeno napetost 0,6/1,0 kV, ki se uporabljajo v podzemnih distribucijskih sistemih. Posebne vrste kablov so označene v posebnih delih.

General Information

• Status: Withdrawn
• Publication Date: 24-May-2007
• Withdrawal Date: 05-Feb-2017
• ICS: 29.060.20 - Cables
• Technical Committee: IEKA - Electric cables
• Current Stage: 8900 - Cancel/Edit already approved and signed publication (Adopted Project)
• Start Date: 14-Mar-2019
• Due Date: 28-Mar-2019
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Ref Project: HD 603 S1:1994/A3:2007 - Distribution cables of rated voltage 0,6/1 kV

Relations

• Amends: SIST HD 603 S1:1998 - Distribution cables of rated voltage 0,6/1 kV
• Effective Date: 01-Jun-2007
• Amends: SIST HD 603 S1:1998 - Distribution cables of rated voltage 0,6/1 kV
• Effective Date: 28-Jan-2023
• Amends: SIST HD 603 S1:1998 - Distribution cables of rated voltage 0,6/1 kV
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST HD 603 S1:1998/A3:2007
01-junij-2007
'LVWULEXFLMVNLNDEOL]DQD]QDþHQRQDSHWRVWN9
Distribution cables of rated voltage 0,6/1 kV
Energieverteilungskabel mit Nennspannungen 0,6/1 kV
Câbles de distribution de tension nominale 0,6/1 kV
Ta slovenski standard je istoveten z: HD 603 S1:1994/A3:2007
ICS:
29.060.20 Kabli Cables
SIST HD 603 S1:1998/A3:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST HD 603 S1:1998/A3:2007

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SIST HD 603 S1:1998/A3:2007


HARMONIZATION DOCUMENT
HD 603 S1/A3

DOCUMENT D'HARMONISATION
April 2007
HARMONISIERUNGSDOKUMENT

ICS 29.060.20


English version


Distribution cables of rated voltage 0,6/1 kV



Câbles de distribution  Energieverteilungskabel
de tension nominale 0,6/1 kV mit Nennspannungen 0,6/1 kV





This amendment A3 modifies the Harmonization Document HD 603 S1:1994; it was approved by CENELEC on
2006-11-01. 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 Central Secretariat or to any CENELEC member.

This amendment exists in one official version (English).

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. HD 603 S1:1994/A3:2007 E

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Foreword

This amendment to the Harmonization Document HD 603 S1:1994 has been prepared by WG9 of Technical
Committee CENELEC TC 20, Electric cables.

Part 1 has been revised, especially to include a Guide to use and selection of cables. A list of additions and
amendments to the particular sections of Parts 3 to 8 is given in this Part 0.

Users of HD 603 should note that, in the particular sections, cross-references have only been updated where
the complete section has been re-issued. This Part 0 of HD 603 contains a list of relevant changes to cross-
references which should be consulted in conjunction with the particular section. National standards
implementing one or more particular sections of HD 603 may update cross-references in advance of changes
to the published version of the HD.

The text of the draft, including a correction circulated as prAA, was submitted to the Unique Acceptance
Procedure and was approved by CENELEC as amendment A3 to HD 603 S1:1994 on 2006-11-01.

The following dates were fixed:

– latest date by which the existence of the amendment
has to be announced at national level (doa) 2007-05-01
– latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-11-01

– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2009-11-01

By decision of the Technical Board (D81/139 extended by D104/118 & D114/076) this HD exists only in
English.

__________

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CONTENTS

(HD 603 S1:1994 with A1, A2 and A3)

1) 5) 11)
Part 1 GENERAL REQUIREMENTS

Part 3 PVC INSULATED CABLES - UNARMOURED

1) 11)
3A  Cables with (type 3A-1) and without (type 3A-2) concentric conductor
11)
3B Cables without concentric conductor (type 3B-1)
3C Cables (type 3C-1) with concentric conductor, PVC sheath
3D Cables (type 3D-1) without concentric conductor, PE sheath
3E Cables (type 3E-1) without concentric conductor, PVC sheath
1) 4) 11)
3F  Cables with (type 3F-1)and without (type 3F-2)concentric conductor
1) 5) 11)
3G Cables with (type 3G-1) and without (type 3G-2) concentric conductor
3H Cables with (type 3H-1)and without (type 3H-2) concentric conductor
1) 5) 10)
3I  Cables with (type 3I-1) and without (types 3I-2 and 3I-3) concentric conductor
1) 11)
3J  Cables with concentric conductor (type 3J-1)
3K Withdrawn
1) 5) 11)
3L  Cables with concentric conductor (type 3L-1)
2) 11)
3M Unarmoured cables (type 3M-1)
5) 10)
3N Unarmoured cables (type 3N)
11)
3O Cables without (type 3O-1) concentric conductor

Part 4 PVC INSULATED CABLES - ARMOURED

1) 11)
4A Cables with concentric conductor (screen) (type 4A)
1) 5) 10)
4B  Cables with braided (type 4B-1) or helically applied (type 4B-2) armour
2) 11)
4C Cables without concentric conductor (type 4C)
1) 11)
4D Armoured cables without (type 4D-1) concentric conductor
11)
4E Armoured cables with (type 4E-1) or without (type 4E-2) concentric copper
conductor or screen

Part 5 XLPE INSULATED CABLES - UNARMOURED

11)
5A Cables without concentric conductor (type 5A)
5B Cables (type 5B) without concentric conductor, PE sheath
5C Cables (type 5C) without concentric conductor, PVC sheath
1) 4) 11)
5D  Cables with and without concentric conductor (types 5D-1 and 5D-2)
1) 11)
5E Cables (for energy boards) with concentric conductor (type 5E)
1) 11)
5F Cables with concentric screen and uninsulated neutral (type 5F)
1) 5) 11)
5G  Cables with (type 5G-1) and without (type 5G-2) concentric conductor
5H Cables without concentric conductor (type 5H)
1) 5) 10)
5I  Cables without concentric conductor (type 5I)
1) 11)
5J Cables with concentric conductor (type 5J)
1) 11)
5K Cables with concentric screen (type 5K)
1) 11)
5L Cables with concentric screen (type 5L)
1) 11)
5M Cables without concentric conductor (type 5M)
1) 9)
5N Cables without concentric conductor (type 5N)
5) 11)
5O Cables without concentric conductor, PVC sheath (type 5O)
1) 5) 11)
5P  Cables with concentric conductor, PVC or PE sheath (type 5P-1 and 5P-2)
5Q Withdrawn
1) 5) 10)
5R  CNE cables with concentric waveform neutral/earth conductor (type 5R)
1) 5) 10)
5S  Service cables with concentric conductor (type 5S)
1) 11)
5T Cables with (type 5T-1) and without (type 5T-2) concentric conductor
11)
5U Cables with (type 5TU1) concentric waveform neutral conductor
3) 11)
5V Unarmoured cables (type 5V)
3) 13)
5W Cables with concentric conductor (type 5W)
12)
5X Cables without concentric conductor (type 5X)

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Part 6 XLPE INSULATED CABLES - ARMOURED

1) 5) 10)
6A Cables with braided (type 6A-1) or helically applied (type 6A-2) armour
6B Withdrawn
1) 11)
6C Armoured cables with (type 6C-1) and without (type 6C-2) concentric conductor
3) 11)
6D Steel tape armoured cables (type 6D)
11)
6E Cables without concentric conductor (screen) (type 6E)

Part 7 EPR INSULATED CABLES - UNARMOURED

5) 9)
7A Cables with and without concentric conductor (type 7A)
5) 9)
7B  Pre-assembled cables without concentric conductor (type 7B)
1) 13)
7C  Cables without concentric conductor (type 7C)
7D Withdrawn
1) 11)
7E  Cables with (type 7E-1) and without (type 7E-2) concentric conductor

Part 8 EPR INSULATED CABLES - ARMOURED

8A Withdrawn
1) 11)
8B Armoured cables with (type 8B-1) and without (type 8B-2) concentric conductor
1)
Amendment A1 introduces some changes to the text.
2)
Amendment A1 completely revises the particular section.
3)
New section introduced by amendment A1.
4)
Amendment A2 introduces some changes to the text.
5)
Amendment A2 completely revises the particular section.
6)
Amendment A1 withdraws the section.
7)
Amendment A2 withdraws the section.
8)
Amendment A3 introduces some changes to the text.
9)
Amendment A3 introduces new Guide to use (Annex A).
10)
Amendment A3 introduces some changes to the text and new Guide to use (Annex A).
11)
Amendment A3 completely revises the particular section and introduces new Guide to use (Annex A).
12)
New section introduced by amendment A3.
13)
Amendment A3 withdraws the section.

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List of updated cross-references

Original Ref Original title New Ref New title
HD 186 Marking by inscription for the EN 50334 Marking by inscription for the
identification of cores of electric identification of cores of electric cables
cables having more than five cores
HD 383 Conductors of insulated cables EN 60228 Conductors of insulated cables
HD 405 Test on electric cables under fire EN 50265 Common test methods for cables under
(series) condition (series) fire conditions – Test for resistance to
vertical flame propagation for a single
insulated conductor or cable.
HD 405.1 Tests on electric cables under fire EN 50265-2-1 Common test methods for cables under
conditions – Part 1: Test on a single fire conditions – Test for resistance to
vertical insulated wire or cable vertical flame propagation for a single
insulated conductor or cable – Part 2-1:
Procedure – 1 kW pre-mixed flame
HD 405.3 Tests on electric cables under fire EN 50266 Common test methods for cables under
conditions – Part 3: Tests on bunched (series) fire conditions – Test for vertical flame
wires or cables spread of vertically-mounted bunched
wires or cables
HD 505 Common test methods for insulating EN 60811 Insulating and sheathing materials of
(series) and sheathing materials of electric (series) electric cables – Common test methods
cables
HD 606 Measurement of smoke density of EN 50268 Common test methods for cables under
(series) electric cables burning under defined (series) fire conditions – Measurement of
conditions smoke density of cables burning under
defined conditions
EN 50265-2-1 Common test methods for cables EN 60332-1-2 Tests on electric and optical fibre
under fire conditions – Test for cables under fire conditions
resistance to vertical flame Part 1-2: Test for vertical flame
propagation for a single insulated propagation for a single insulated wire
conductor or cable or cable - Procedure for 1 kW pre-
Part 2-1: Procedures – 1 kW pre- mixed flame
mixed flame
EN 61034 Measurement of smoke density of
EN 50268 Common test methods for cables
(series) cables burning under defined
(series) under fire conditions – Test for
conditions
vertical flame spread of vertically-
mounted bunched wires or cables
IEC 183 Guide to the selection of high-voltage IEC 60183 Guide of the selection of high-voltage
cables cables
IEC 60502 Extruded solid dielectric insulated IEC 60502-1 Power cables with extruded insulation
power cables for rated voltages from and their accessories for rated voltages
1 kV to 30 kV from 1 kV (U = 1,2 kV) up to 30 kV
m
(U = 36 kV) – Part 1: Cables for rated
m
voltages of 1 kV (U = 1,2 kV) and 3 kV
m
(U = 3,6 kV)
m
IEC 754-1 Tests on gases evolved during EN 50267-2-1 Common test methods for cables under
combustion of materials from cables – fire conditions – Tests on gases
Part 1: Determination of the amount evolved during combustion of materials
of halogen acid gas from cables – Part 2-1: Procedures –
Determination of the amount of halogen
acid gas

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BLANK PAGE

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SIST HD 603 S1:1998/A3:2007
Page 1-0
HD 603 S1:1994/A3:2007
Part 1

PART 1: GENERAL REQUIREMENTS
Replace the complete part by the following:

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Page 1-1
HD 603 S1:1994/A3:2007
Part 1

HD 603 S1:1994/A3:2007

DISTRIBUTION CABLES OF RATED VOLTAGE 0,6/1 KV

PART 1: GENERAL REQUIREMENTS

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Part 1

CONTENTS

1 General. 4
1.1 Scope . 4
1.2 Object . 4
2 Definitions. 4
2.1 Definitions concerning the insulating and sheathing compounds. 4
2.2 Definitions relating to the tests . 5
2.3 Rated voltage.6
3 Marking. 6
3.1 Indication of origin.6
3.2 Additional marking . 7
3.3 Durability. 7
3.4 Legibility. 7
3.5 Common marking. 7
3.6 Use of the name CENELEC . 7
4 Core identification. 7
5 General requirements for the construction of cables . 8
5.1 Conductors .8
5.2 Insulation . 8
5.3 Assembly of cores. 9
5.4 Fillers and tapes. 9
5.5 Inner covering (bedding) . 9
5.6 Inner sheath. 10
5.7 Metallic coverings . 10
5.8 Oversheath . 10
6 Tests on completed cables . 11
7 Sealing and packing . 11
8 Current ratings. 11
9 Guide to use and selection of cables . 11
Annex A (informative) Guide to use and selection of cables . 37
A.1 Object . 37
A.2 Recommendations for selection of cables . 37
A.3 Recommendation for storage and transport . 38
A.4 Recommendation for cable installation. 40
A.5 Environment. 44

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Part 1

REFERENCES
References are made in this Part 1 to other parts of HD 603 and to other Harmonization Documents as
follows:
EN 50334 Marking by inscription for the identification of cores of electric cables
EN 60228 Conductors of insulated cables (IEC 60228)
EN 60332-1-2 Tests on electric and optical fibre cables 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 60332-1-2)
EN 60811 (series) Insulating and sheathing materials of electric and optical cables –
Common test methods (IEC 60811 series)
HD 308 Identification of cores in cables and flexible cores
HD 605 Electric cables – Additional test methods
IEC 60287 (series) Electric cables – Calculation of the current rating


In all cases reference to another HD or International Standard implies the latest edition of that document.

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Part 1

1 General
1.1 Scope
HD 603 applies to cables of rated voltage Uo/U = 0,6/1 kV used in underground power distribution systems
mainly for public distribution, of nominal voltage not exceeding 0,6/1 kV a.c.
This part (Part 1) specifies the general requirements applicable to these cables, unless otherwise specified in
the particular sections of this HD.
Test methods are specified in HD 605 and in EN 60228, EN 60332-1-2 and EN 60811.
The particular types of cables are specified in Parts 3 to 8.
1.2 Object
The objects of this Harmonization Document are:
– to standardise cables that are safe and reliable when properly used, in relation to the technical
requirements of the system of which they form a part;
– to state the characteristics and manufacturing requirements which have a direct or indirect bearing on
safety,
– and to specify methods for checking conformity with those requirements.

2 Definitions
2.1 Definitions concerning the insulating and sheathing compounds
2.1.1 Insulating and sheathing compounds
The types of insulating and sheathing compounds covered by this HD are listed below, together with their
abbreviated designations:

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Part 1

Table 2.1.1 – Insulating and sheathing compounds
Insulating and sheathing compounds See:
Insulation a) Thermoplastic:
 Insulating compounds based on:
  - polyvinyl chloride or copolymers (PVC) Table 1
  - polyolefin   (PO) Table 4C
b) Cross-linked:
 Insulating compounds based on:
- cross-linked polyethylene (XLPE) Table 2A
- ethylene propylene rubber (EPR) Table 2B
- hard ethylene propylene (HEPR) Table 2C
rubber
Sheathing a) Elastomeric
 sheathing compound based on:
  - Polychloroprene     (PCP) Table 3
  - Chlorosulfonated polyethylene    (CSP)
  or similar polymer
b) Thermoplastic:
 sheathing compounds based on:
- polyvinyl chloride (PVC) Table 4A
- polyethylene (PE) Table 4B
- polyolefin (PO) Table 4C

2.1.2 Type of compound
The category in which a compound is placed according to its properties is determined by specific tests. The
type designation is not directly related to the composition of the compound.
2.2 Definitions relating to the tests
NOTE Tests classified as sample (S) or routine (R) may be required as part of any type approval schemes.
2.2.1 Type tests (Symbol T)
Tests required to be made before supplying a type of cable covered by this HD on a general commercial
basis in order to demonstrate satisfactory performance characteristics to meet the intended application.
These tests are of such a nature that, after they have been made, they need not be repeated unless
changes are made in the cable material, design or type of manufacturing process which might change the
performance characteristics.
2.2.2 Sample tests (Symbol S)
Tests made on samples of completed cable, or components taken from a completed cable adequate to verify
that the finished product meets the design specifications.
2.2.3 Routine tests (Symbol R)
Tests made on all production cable lengths to demonstrate compliance with requirements.
2.2.4 Tests after installation
Test intended to demonstrate the integrity of the cable and its accessories as installed.

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Part 1

2.3 Rated voltage
The rated voltage of a cable is the reference voltage for which the cable is designed, and which serves to
define the electrical tests.
The rated voltage is expressed by the combination of the following values U /U(U ) expressed in kV.
o m
U is the rms. value between any insulated conductor and earth (metal covering of the cable or the
o
surrounding medium); U = 0,6 kV
o
U is the rms. value between any two phase-conductors of a multicore cable or of a system of single-core
cables; U = 1,0 kV
U is the maximum rms. value of the highest system voltage for which the equipment may be used;
m
U = 1,2 kV.
m
In an alternating current system, the rated voltage of a cable shall be at least equal to the nominal voltage of
the system for which it is intended.
If used in d.c. systems, the cables of this HD shall have a maximum voltage against earth not exceeding
1,8 kV.
3 Marking
3.1 Indication of origin
Cables shall be provided with an identification of origin consisting of:
- either the manufacturer's identification thread
- or the continuous marking of the manufacturer's name or trademark, or (if legally protected)
identification number by one of the three following alternative methods:
1) printed tape within the cable,
2) printing in a contrasting colour on the insulation of at least one core,
3) printing, indenting or embossing on the outer surface of the cable.
3.1.1 Continuity of marks
Unless otherwise specified in the particular sections, each specified mark shall be regarded as continuous if
the distance between the end of the mark and the beginning of the next identical mark does not exceed:
- 550 mm if the marking is on the outer surface of the cable,
- 275 mm if the marking is:
1) on the insulation of a sheathed cable,
2) on a tape within a sheathed cable.
NOTE  A ‘specified mark’ is any mandatory mark covered by this part of the HD or by the particular requirements of Part 3 onwards of
this HD.

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The diagram below shows an example of the marking as used on the outer surface of the cable, where the
word ‘ORIGIN’ is for the mandatory information required by 3.1, and ‘XYZ’ is one of any other mandatory
marks.

3.2 Additional marking
Additional marking requirements may be specified in the particular sections.
3.3 Durability
Printed markings shall be durable. Compliance with this requirement shall be checked by the test specified in
Subclause 2.5.4 of HD 605.
The printed legend shall be legible after carrying out the test.
3.4 Legibility
All markings shall be legible. Printed markings shall be in contrasting colours.
All colours of the identification threads shall be easy to recognise or easily be made recognisable, if
necessary, by cleaning with a suitable solvent.
3.5 Common marking
Under consideration
3.6 Use of the name CENELEC
The name CENELEC, in full or abbreviated, shall not be marked directly on or in the cables.
4 Core identification
The cores shall be identified by colours or numbers, as specified in the particular sections. Colouring shall be
achieved by the use of coloured insulation or by a coloured surface. Each core shall have only one colour
except the core identified by a combination of the colours green and yellow. The colours green and yellow
shall not be used separately as single colours.
If there is more than one black or brown coloured core, one of them may be marked with a white line. The
white line must be at least 0,5 mm wide, but must not cover more than 5 % of the surface of the core.
The colour or numbering schemes relevant to the various types of cables are specified in the particular
sections of this HD.
If the core identification is by colours it shall comply with HD 308 S2, unless otherwise specified in the
particular sections.
When identification is made by numbers, they shall be printed in a colour which contrasts with the core
colour. Marking shall comply with EN 50334 unless otherwise specified.
The colours or numbers shall be clearly identifiable and durable. Durability shall be checked by the test
specified in Subclause 2.5.4 of HD 605.

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Part 1

The distribution of the colours for the core coloured green and yellow shall comply with the following
condition: for every 15 mm length of core, one of these colours shall cover at least 30 % and not more than
70 % of the surface of the core, the other colour covering the remainder.
NOTE The colours green and yellow, when they are combined as specified above are recognised exclusively as a means of
identification of the core intended for use as earth connection or similar protection.
Compliance with these requirements shall be verified by visual examination.
5 General requirements for the construction of cables
Compliance with the requirements specified in 5.1 to 5.8 and in the particular sections of this HD shall be
checked by inspection and by measurements according to the test methods listed in the particular sections.
5.1 Conductors
5.1.1 Material
Conductors shall be either plain or metal-coated annealed copper or plain aluminium or aluminium alloy in
accordance with EN 60228 and with particular requirements in particular sections of this HD.
Conductors shall be either circular or sector in shape, and of solid metal or stranded.
5.1.2 Electrical resistance
The resistance of each conductor at 20 ºC shall be in accordance with the requirements in EN 60228 for the
given class of conductor.
5.1.3 Separator tape
A separator tape may be placed between the conductor and insulation. Unless otherwise specified, it shall
be non-hygroscopic.
It shall be easily removable from the conductor.
5.2 Insulation
5.2.1 Material
The insulation shall be an extruded solid compound of one of the types listed in 2.1.1 and as specified for
each type of cable in the particular sections of this HD.
The test requirements for the insulating compounds are specified in Tables 1 and 2, and the reference to the
test methods are specified in the particular sections.
The maximum conductor temperature in normal operation and the short-circuit temperature for each
insulation are specified in the particular sections.
5.2.2 Application
The insulation may consist of one or more bonded layers. It shall be so applied that it fits closely on the
conductor or over the separator tape, and it shall be possible to remove it without damage to the insulation
itself, to the conductor or to the metal coating if any. The insulation shall be applied by a suitable extrusion
process, cross-linked where required, and shall form a compact and homogeneous body.
5.2.3 Thickness
Unless otherwise specified in the particular sections, insulation thickness values are in Table 5 for each
cable type and size.
The mean value of the thickness of insulation shall be not less than the specified value.
However, the thickness at any place may be less than the specified value provided that the difference does
not exceed 0,1 mm + 10 % of the specified value.
Compliance shall be checked by the test method specified in Subclause 2.1.1 of HD 605.

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5.2.4 Mechanical properties before and after ageing
The insulation material shall have the characteristics specified in Tables 1 or 2 as appropriate.
5.2.5 Additional properties
These are specified in the particular sections.
5.3 Assembly of cores
In multicore cables, the cores shall be cabled helically or with another suitable method.
Auxiliary cores, if any, shall be laid up in the i
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