HD 626 S1
HARMONIZATION DOCUMENT
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
February 1996
ICS 29.060.20
Descriptors:
Electrical installation, insulated conductor, bundle asembled cores, electric overhead line, conductor, protective
sheath, polyethylene, characteristics, dimension. test. marking
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English version
Ciibles de distribution aerienne
de tension assignee UoIU(U,):
0,611 ( 1 , 2 ) kV
lsolierte Freileitungsseile fiir oberirdische
Verteilungsnetze mit Nennspannungen
U o I U ( U m ) : 0,611 ( 1 , 2 ) kV
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This Harmonization Document was approved by CENELEC on 1995.1 1-28. CENELEC members are
bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for
implementation of this Harmonization Document on a national level.
Up-to-date listsand bibliographical references concerning such national implementation may be obtained
on application t o the Central Secretariat or to any CENELEC member.
This Harmonization Document exists exceptionally in t w o official versions only [English, French).
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Dit document mag slechts op een stand-alone PC worden geinstalleerd. Gebruik op een netwerk is alleen.
toestaan als een aanvullende licentieovereenkomst voor netwerkgebruik met NEN is afgesloten.
This document may only be used on a stand-alone PC. Use in a network is only permitted when
a supplementary license agreement for us in a network with NEN has been concluded.
Overhead distribution cables
of rated voltage U,IU(Um): 0.611 (1,2) kV
CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland,
France, Germany, Greece, Iceland. Ireland, Italy, Luxembourg. Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comite Europeen de Normalisation Electrotechnique
Europaisches Komitee f u r Elektrotechnische Norrnung
Central Secretariat: r u e de Stassart 35, B
Q
- 1050 Brussels
1996 Copyright reserved to CENELEC members
Ref. No. HD 626 S1:1996 E
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Page 0- 2
H D 6 2 6 S 1 : 1996
FOREWORD
This Harmonization document was prepared by Technical Committee CENELEC TC20 'Electric Cables'
Part 1 of HD 626 contains the General Requirements applicable to cables for overhead distribution and
sewice, specified in the particular sections of Part 3, 4, 5. 6. 7 and 8. Only bundle assembled cores are
specified . An amendment, concerning single core cables, is under consideration, and will be introduced as
Part 9.
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The document contains the following Parts, arranged according to the main constructional features of the
cables covered :
HD 626 Part 1
HD 626 Part 2
HD 626 Part 3
-
General Requirements
Additional Test Methods
PE insulated self-supporting cables,
(bundle assembled cores )
XLPE insulated self-supporting cables,
(bundle assembled cores )
PE insulated cables with messenger,
(bundle assembled cores )
XLPE insulated cables with messenger,
(bundle assembled cores )
XLPE insulated and sheathed self-supporting cables,
(bundle assembled cores )
XLPE insulated and PVC sheathed cables with messenger,
(bundle assembled cores )
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HD 626 Part 4 HD 626 Part 5 HD 626 Part 6 HD 626 Part 7 HD 626 Part 8 -
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Each of Parts 3
8 inclusive contains a number of Sections, and the Technical Board has agreed
(0681047, Brussels, June 1991) that National Committees need at present only implement in their
national language those Sections having national applicability. The obligation remains however to announce
the full HD in public by titles and numbers, and also to withdraw any conflicting national standards.
Page numbering reflects the arrangement into Parts and Particular sections, e.g.. Page 5-D-6 is Page 6 of
Particular Section D of Part 5.
References to other HDs, ENS and International Standards are given in the particular parts or sections.
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The t e a of t h e draft was submined t o the formal vote and was approved b y CENELEC as HD 626 S1 on
1995-1 1-28.
By decision o f the Technical Board lD811139). this Harmonization Document exists only in English and
French.
The following dates were fixed:
-
latest date b y which the existence of the HD
has t o be announced at national level
-
latest date b y which the HD has t o be implemented
at national level b y publication of a harmonized
national standard or b y endorsement
-
latest date b y which the national standards conflicting
w i t h the H D have t o be withdrawn
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Page 0-3
HD 626 S1 : 1996
CONTENTS
PART 1
GENERAL REQUIREMENTS
PART 2
ADDITIONAL TEST METHODS
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PART 3
PE-U
S
NI
)-
3A
Bundle assembled cores for overhead distribution and service (Type 3A-1)
(Cables with aluminium conductors )
3C
Bundle assembled cores for overhead distribution and service (Type 3C-1 and
3C-2)
(Cables with aluminium (Type 3C-1) or with copper (Type 3C-2) phase
conductors, and aluminium neutral conductor ).
.
or
Bundle assembled cores for overhead service (Type 3 1-1)
(Cables with aluminium conductors).
3 L
Bundle assembled cores for overhead distribution and service (Type 3L-1)
(Cables with aluminium conductors ).
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XLPE INSULATED SELF SUPPORTING CABLES
(bundle assembled cores )
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PART 4
Bundle assembled cores for overhead service (Types 48-1 and 48-2)
(Cables with aluminium conductors (Type 48-1) or with copper conductors
(Type 48-2)).
4E
Bundle assembled cores for overhead service (Type 4E-1)
(Cables with aluminium conductors)
4 F
Bundle assembled cores for overhead distribution and service (Type 4F-1)
(Cables with aluminium conductors).
4G
Bundle assembled cores for overhead distribution (Type 4G-1)
(Cables with aluminium conductors).
4J
Bundle assembled cores for overhead service (Types 4J-1 and 4J-2)
(Cables with aluminium conductors (Type 4J-1) or with copper conductors
(Type 4J-2) ).
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4 B
.
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Page 0- 4
HD626 S1 : 1996
Bundle assembled cores for overhead service (Type 4K-1)
(Cables with aluminium conductors).
4 K
4
M
Bundle assembled cores for overhead distribution and service (Type 4M-1)
(Cables with aluminium conductors)
.
Bundle assembled cores for overhead distribution (Type 4N-1)
(Cables with aluminium conductors ).
4 N
PART 5
PF INSUI ATFD CABLFS WJTH MFSSFNGFR
e assembled cores )
Bundle assembled cores for overhead distribution and service (Type 5D-1)
(Cables with aluminium phase conductors and uninsulated aluminium alloy
neutral conductor).
5 1
Bundle assembled cores for overhead service (Type 5 1-1)
(Cables with aluminium phase conductors and stranded steel messenger alloy
neutral conductor).
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5 D
6 B
6D
T
X
{bundle assembled cores )
or
X
P
R
Bundle assembled cores for overhead distribution (Type 60-1)
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor).
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Bundle assembled cores for overhead distribution and service (Type 6D-1)
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor).
Bundle assembled cores for overhead distribution (Type 6E-1)
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor).
6J
Bundle assembled cores for overhead distribution (Type 6J-1)
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor).
6 K
Bundle assembled cores for overhead distribution (Type 6K-1)
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor).
6N
Bundle assembled cores for overhead distribution (Type 6N-1)
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor).
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HD 626 S1 : 1996
PART 7
7H
X I PF INSUl ATFD AND SHFATHFD SF1 F SUPPORTING CABLES
B u n d l e assembled cores )
Bundle assembled cores for overhead distribution and service (type 7H),Self
supporting XLPE insulated cables
(Cables with tinned copper phase conductors and tinned copper neutral
conductor)
PART 8
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XLPE INSULATED AND PVC SHEATHED CABLES WITH MESSENGER
(bundle assembled cores )
8H
Bundle assembled cores for overhead distribution and service (type EH), Neutral
conductor messenger XLPE insulated cables
(Cables with aluminium phase conductors and aluminium alloy neutral
conductor)
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Page 0- 6
HD 626 S1 : 1996
or
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BLANK PAGE
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Page 1- 1
HD 626 S1 :l 996
Part l
PART 1 . GENERAL REQUIREMENTS
CONTENT
1
..................................................................................................................... 3
1 .1
Scope...................................................................................................................... 3
1 .2
Object...................................................................................................................... 3
..................................................................................................................... 3
Definitions
Definitions relating to insulating and sheathing materials.............................................. 3
2.1
2.1.1 . Insulating and sheathing materials.................................................................. 3
3
2.1.2 .Type of compound.........................................................................................
...
2.2
Deflnlt~onsrelating to the tests...................................................................................4
2.2.1 -Type tests (Symbol T) ..................................................................................... 4
2.2.2-Sample tests (Symbol S) .................................................................................4
2.2.3 - Routine tests (Symbol R) ................................................................................ 4
2.2.4- Tests after installation.....................................................................................4
2 .3
Rated voltage ........................................................................................................... 4
..
........................................................................................................ 4
2 .4
Other definlt~on
..................................................................................................................... 5
Marking
..
3.1
Indication of ongin..................................................................................................... 5
. .
5
3.1.1 - Cont~nuityof Marks.......................................................................................
3.2
Additional Marking .................................................................................................... 5
.. .................................................................................................................. 5
3.3
Durab~llty
...
3.4
Leg~blhty..................................................................................................................5
3.5
Common marking......................................................................................................6
3.6
Use of the name CENELEC...................................................................................... 6
. . .
Core identification................................................................................................................ 6
General requirements for the construction of cables ............................................................... 7
5.1
Conductors..............................................................................................................7
5.1.1 - Material .......................................................................................................... 8
5.1.2- Electricalresistance ........................................................................................ 8
5.1.3- Separator tape ............................................................................................... 8
Insulation or insulating sheath.................................................................................... 8
5.2
5.2.1..Material......................................................................................................... 8
5.2.2 . Application ..................................................................................................... 8
5.2.3- Colour of the insulation................................................................................... 8
5.2.4- Thickness...................................................................................................... 8
5.2.5- Mechanical properties before and after ageing ................................................. 8
5.2.6- Additional properties ...................................................................................... 8
General
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Page 1-2
HD 626 S1:1996
Part 1
5.3
Oversheath ( ifany ) ..................................................................................................
8
5.3.1 .Material..........................................................................................................
8
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. . .....................................................................................................
5.3.2 .Applicat~on
8
9
5.3.3 - Colour of the sheath.......................................................................................
9
5.3.4 -Thickness ......................................................................................................
5.3.5 - Mechanical properties before and after ageing ................................................. 9
9
5.3.6 - Other properties.............................................................................................
9
Assembly of cores ....................................................................................................
5.4
Tests
on
completed
cables
...................................................................................................
9
6
7
Sealing and packing .............................................................................................................
9
8
Current canying capacity .....................................................................................................
10
9
Guide to use and selection of cables.................................................................................... 10
Appendix 1 - (Informative) - Guide to use and selection of cables ...................................................... 16
16
Recommendations for use..................................................................................................
.
.
.
. ..........................................................................................
A.l.l Perm~ss~ble
appl~cat~ons
16
.
.
A.1.2 Highest permiss~blevoltage..................................................................................... 16
16
Recommendations for storage and transportation.................................................................
16
A.2.1 Delivery..................................................................................................................
16
A.2.2 Cable-end sealing...................................................................................................
...............................................................................................................
A.2.3 Transport
16
Recommendations for cable laying and installation................................................................ 17
..
A.3.1 Laying and operating condltwns .............................................................................. 17
A.3.2 Minimum permissible installation temperature ......................................................... 17
17
A.3.3 Cable laying............................................................................................................
17
Pulling by cable stocking.....................................................................
A.3.3.1
l7
A.3.3.2.
Cable route ........................................................................................
Minimum bending radius.....................................................................................................
17
Other recommendations.....................................................................................................
17
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REFERENCES
References are made in this Part 1 to other Parts of HD 626 and to other Harmonisation Documents or
European Norms or Internationalpublications as follows :
EN 60811
Common test methods for insulating and sheathing materials of electric cables
HD 186
Marking by inscription for the identlication of cores of electric cables having more than
five cores
HD 383
Conductors of insulated cables (endorsing IEC 228 and 228A)
HD 405
Test on electric cables under fire condition
HD 605
Electric cables :Additional test methods
IEC 50(461) lntematio~l
Electrotechnical Vocabulary. Chapter 461 : Electric cables
IEC 287
Calculation of the continuous current rating of cables (l00 % load factor)
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Page 1-3
HD 626 S1:1996
Part l
-
PART 1 GENERAL REQUIREMENTS
1
General
1.1
a
HD 626 applies to cables of rated voltage U. IU (Um)= 0,6 1 1(1,2) kV used in overhead power
distribution systems mainly for public distribution, of maximum system voltage not exceeding l? kV.
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This part (Part 1) specifies the general requirements applicaMe to these cables, unless otherwise
specified in the particular sections of this HD
Test methods are specified in HD 383,HD 405,EN 60811 and in HD 605 or in Part 2 of this HD
The particular types of cables are specified in Parts 3 to 8.
1.2
The objeds of this Harmonisation Document are :
or
to standardize cables that are safe and reliable when properly used and equipped with
appropriate accessories, 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
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2.1 .l
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2.1 Definlions relatina to insulatina and sheathina materials
lnsulating and sheathing matelials
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The types of insulating and sheathing compounds covered in this HD are listed below, together with
their abbreviated designations :
See:
lnsulating and sheathing compounds
2 : Sheath
1
Thermoplastic :
lnsulating compounds based on:
-Polyethylene
Cross linked
lnsulating compound based on :
-Cross linked polyethylene
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1 : Insulation a)
and insulating
sheath(')
b)
Cross linked:
Sheathing compound based on :
-Cross linked polyethylene
b) Thermoplastic :
Sheathing compounds based on :
-Polyvinyl chloride
a)
(PE)
Table 1
(XLPE)
Table 2
(XLPE)
Table 3
(PVC)
Table 4
An insulatingsheath is an extruded layer which simultaneously acts as an insulation and as a sheath
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Page 1- 4
H D 626 S1 :l996
Part 1
2.1.2
- Type of compound
The category in which a compound is classified 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
2.2.1
- Type tests (Symbol l')
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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 (SymbolS)
Tests made on samples of completed cable, or components taken from a completed cable adequate to
verify that the finished product meets the design spect'itions.
2.2.3
- Routine tests (Symbol R)
Tests made on all production cable lengths to demonstrate their integrity.
-
or
2.2.4 Tests after installation
Tests intended to demonstrate the integrity of the cable and l s accessories as installed .
m- Tests classified as sarnple(S) or routine (R) may be required as part of type approval schemes.
2 .3 Ratedvoltage
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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 Uo IU (Um) expressed in kV.
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U. is the rms. value between any insulated conductor and earth ;
U
. =
0,6 kV
U is the rms. value between any two phaseconductors of a multicore cable ;
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Um is the rrns. value of the highest system voltage for which the equipment may be used;
Um= 1,2kV.
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.
The cables of this HD may be used in DC Systems wah a maximum voltage against earth not exceeding
0.9 kV.
2.4
Other definition:
Messenger (IEV 461-08-03) : a wire or a rope, the primary function of which is to support the
cable in aerial installation, which may be separate from or integral with the cable it supports.
Note : in this HD,the messenger is called in some sections 'neutral core' and even
'messenger neutral core"
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Page 1-5
HD 626 S1 :l 996
Part l
3
Marking
. .
..
3.1 w
n of orlqm
Cables shall be provided with an indication of origin consisting of :
.
2.
Ether the manufacturer's identificationthread,
1
or the continuous marking of the manufacturer's name or trademark, or (if legally protected)
identification number by one of the two following anernative methods :
a) printed tape within the cable,
b) printing, indenting or embossing on the outer surface of at least one core.
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3.1.l 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 :
on the insulation of a sheathed cable
or
or on a tape within a sheathed cable.
Note :
A speci if^ 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 use on the outer surface of the cable, where
the word 'ORIGIN" is for the mandatory information required by the subclause 3.1, and 'XYZ" is one
of any other mandatory marks .
ORIGIN
4
XYZ
S
550
b
RIGIN
XYZ
S 550
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3.2 Additional Markinq
4
Additional marking requirements may be specified in the particular sections .
3.3 Durabilii
Printed markings shall be durable. Durability shall be checked by the test given in sub-clause 2.5.4 of
HD 605.The printed legend shall be legible after carrying out the test.
All markings shall be legible. Printed markings shall be in contrasting colours. The colours of the
identification threads shall be easy to recognise or easily be made recognisable, if necessary, by
cleaning with a suitable solvent. The printed legend shall be legible atter carrying out the test.
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Page 1-6
HD 626 S1:1996
Part 1
3.5
Under consideration.
3.6 &&&cMuE~IELEG
The name CENELEC, in full or abbreviated. shall not be marked directly on. or in, the cables.
4
.. .
Core ideotlflcatlon
or
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The cores shall be identifiedby ribs ( examples of the wde method is given hereafter) or by numbers
(printing, indenting or embossing on the outer surface of the core), or both of them . For a two cores
cable, this core identificationis valid too .
Method A
Method B
Method C
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Method D
PEN
Method G
Method E
3
N
Method H
Method F
3
Method I
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Page 1-7
HD 626 S1 :l996
Part l
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Method J
The colour or numbering or coding schemes relevant to the various types of cables are given in the
particular sections of this HD.
When identification is made by numbers. they shall be printed in a colour which contrasts with the core
colour. Marking shall comply with HD 186 unless otherwise specified.
or
The colours or numbers shall be clearly identifiable and durable. Durability shall be checked by the test
specified in subclause 2.5.4of HD 605.
Compliance with these requirements shall be verified by visual examination.
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General reauirernents for the construction of cables
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Compliance with the requirements given in subclauses 5.1 to 5.4and in the particular sections of this
HD shall be checked by inspection and by measurements according to the test methods in documents
listed in the Scope of the H0 626-1 Sub-clause 1.l. or in particular sections.
-
5.1.l Material
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Conductors shall be either of plain or metal-coated harddrawn copper or of aluminium or aluminium
alloy in accordance with HD 383 or with particular requirements in particular sections of this HD.
Conductors shall be circular and stranded or shall comply with particular requirements in particular
sections of this HD.
-
5.1.2 Electrical resistance
The resistance of each conductor at 20% shall be in accordance with the requirements in HD 383 for
the given class of conductor or with particular requirements in particular sections of this HD.
-
5.1.3 Separator tape
A separator tape may be placed between the conductor and the insulation.
It shall be easily removable from the conductor.
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Page 1- 8
HD 626 S1:1996
Part 1
Insulation shall be extruded solid compound of one of the types listed in Sub-clause 2.1.l and as given
for each type of cable in the particular sections of HD 626.
Test requirementsfor the insulating mmpounds are specified in Tables 1 and 2.
5.2.2
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- 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
mnductor or to the metal coating if any. The insulation shall be applied by a suitable extrusion process,
and shall form a compact and homogeneous body.
-
5.2.3 Colour of the insulation
The colour of the insulation or of the insulating sheath shall be black or grey according to the particular
sections .
or
5.2.4 - Thickness
The insulation thickness values are specified in the particular sections , for each cable type and size.
The mean value of the thickness of insulation shall be not less than the specified value,
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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.
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Compliance shall be checked by the test method specified in sub-clause 2.1.l. of HD 605.
5.2.5- Mechanical properties before and afler ageing
The insulation material shall have the characteristics specified in Tables 1 or 2 as appropriate
-
5.2.6 Additional properties
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These are specified in the particular sections.
The oversheath shall be of a compound suitable for the conductor temperature and of the type
specified in the particular sections.
The test requirements for these compounds are specified in Tables 3 and 4 unless stated otherwise in
the particular sections.
5.3.2 - Application
The oversheath shall be extruded and may consist of one or more layers.
Unless othewise specified in the particular sections of this HD, the sheath shall not adhere to the
cores. A separator, consistingof a film or tape, may be placed under the sheath.
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Page 1-9
HD 626 S1 :l996
Part l
-
5.3.3 Colour of the sheath
The colour of the sheath shall be grey according to the particular sections.
-
5.3.4 Thickness
The mean value of the thickness of the oversheath shall be not less than the specified value for each
type and size of cable in the particular sections.
However, the thickness at any place may be less than the specified value provided that the difference
does not exceed 0.1 mm + 15 % of the specified value.
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Test methods are given in HD 605, Suklause 2.1.2.
-
5.3.5 Mechanical properties before and after ageing
The sheath shall have appropriate mechanical characteristics within the temperature limits to which it
may be expsed in normal use.
Compliance shall be checked by carrying out the tests given in Tables 3 and 4, unless stated otherwise
in the particular sections.
or
-
5.3.6 Other properties
These are specified in the particular sections
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Assemblv of cores
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In multicore cables, the cores shall be laid-up helically. For cables having a messenger, the phase and
auxiliary cores shall be cabled helically around it.
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Auxiliary cores, if any, shall be laid up in the interstices between main cores, allowed number and
requirements thereof are given in the particular sections.
6
Tests on c o m ~ l e t e dcables
7
Sealina and ~ a c k i n g
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All cables shall comply with the requirements specified in sub-clause 5.1 to 5.4 and in the particular
sections of this HD. Compliance shall be checked by inspection and by measurements according to
the test methods in documents listed in the Scope of Part 1 of this HD, Sub-clause 1.l.
Prior to storage or shipment, cable ends shall be sealed by appropriate caps, hot dipping or other
suitable method so that water ingress is efficiently prevented.
Cables shall be packed as coils or on drums according to the particular sections.
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o.m. ISO- en IEC-normen.
Postbus / Adres
• Bestelt u via de normshop een
PostcodePlaats
pdf, dan betaalt u geen
handeling en verzendkosten.
TelefoonFax
• Meer informatie: telefoon
(015) 2 690 391, dagelijks
Factuuradres (indien dit afwijkt van bovenstaand adres)
van 8.30 tot 17.00 uur.
Postbus / Adres
• Wijzigingen en typefouten
in teksten en prijsinformatie
PostcodePlaats
voorbehouden.
• U kunt onze algemene
voorwaarden terugvinden op:
DatumHandtekeningwww.nen.nl/leveringsvoorwaarden.
Normalisatie: de wereld op één lijn.
preview - 2016