HD 626 S1:1996/A2:2002

SLOVENSKI STANDARD
01-september-2002
1DG]HPQLUD]YRGQLNDEOL]DQD]QDþHQRQDSHWRVW8R88PN9
Overhead distribution cables of rated voltage Uo/U(Um): 0,6/1 (1,2) kV
Isolierte Freileitungsseile für oberirdische Verteilungsnetze mit Nennspannungen Uo/U
(Um): 0,6/1 (1,2) kV
Câbles de distribution aérienne de tension assignée Uo/U(Um): 0,6/1 (1,2) kV
Ta slovenski standard je istoveten z: HD 626 S1:1996/A2:2002
ICS:
29.060.20 Kabli Cables
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT HD 626 S1/A2
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT January 2002
ICS 29.060.20
English version
Overhead distribution cables of rated voltage Uo/U(Um): 0,6/1 (1,2) kV
Câbles de distribution aérienne Isolierte Freileitungsseile
de tension assignée für oberirdische Verteilungsnetze
Uo/U(Um): 0,6/1 (1,2) kV mit Nennspannungen
Uo/U(Um): 0,6/1 (1,2) kV
This amendment A2 modifies the Harmonization Document HD 626 S1:1996; it was approved by
CENELEC on 2001-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal
Regulations which stipulate the conditions for implementation of this amendment on a national level.
Up-to-date lists and bibliographical references concerning such national implementation may be obtained
on application to the Central Secretariat or to any CENELEC member.
This amendment exists in two official versions (English, French).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and 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
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 626 S1:1996/A2:2002 E

Page 0-2
Foreword
This amendment to Harmonization Document HD 626 S1:1996 has been prepared by WG 9 of CENELEC
TC 20 “Electric Cables”.
CENELEC TC 20 confirmed at its Stresa meeting (May 1999) that the amendment should go to the Unique
Acceptance Procedure.
A list of additions and amendments to the particular sections of Parts 2, 4, 5 and 6 is given in this Part 0.
NOTE  During the preparation of this amendment, IEC 502 (4th edition) has been replaced by IEC 60502-1 and -2 and HD 405.1 has been
superseded by EN 50265.
In general, the updating of these references has not been included in this amendment unless a complete section has been introduced or
replaced. Users should refer to these new editions for the most up-to-date information.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC
as amendment A2 to HD 626 S1:1996 on 2001-06-01.
The following dates were fixed:
� latest date by which the existence of the
amendment has to be announced at national level (doa) 2002-02-01

� latest date by which the amendment has to be
implemented at national level by publication of a
harmonized national standard or by endorsement (dop) 2002-08-01

� latest date by which the national standards
conflicting with the amendment have to be withdrawn (dow) 2003-08-01

Page 0-3
CONTENTS OF HD 626, HD 626/A1 AND HD 626/A2
PART 0 CONTENTS OF HD 626, HD 626/A1 AND HD 626/A2 A2 Withdrawn section and
replaced by the new
one
PART 1 GENERAL REQUIREMENTS A1 Withdrawn section and
replaced by the new
one
PART 2 ADDITIONAL TEST METHODS
A2 Amended section
PART 3 PE INSULATED SELF SUPPORTING CABLES
(bundle assembled cores)
3 A Bundle assembled cores for overhead distribution and -
service (Type 3A-1) - (Cables with aluminium conductors)
3 C 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)
3 I Bundle assembled cores for overhead service (Type 3 I-1)
-
- (Cables with aluminium conductors)
3 L Bundle assembled cores for overhead distribution and
-
service (Type 3L-1) - (Cables with aluminium conductors)
PART 4 XLPE INSULATED SELF SUPPORTING CABLES
(bundle assembled cores)
4 B Bundle assembled cores for overhead service A2 Amended section
(Types 4B-1 and 4B-2) - (Cables with aluminium
conductors (Type 4B-1) or with copper conductors
(Type 4B-2))
4 E Bundle assembled cores for overhead service (Type 4E-1) A2 Amended section
- (Cables with aluminium conductors)
4 F Bundle assembled cores for overhead distribution and A1 Amended section
service (Type 4F-1) - (Cables with aluminium conductors)
4 G Bundle assembled cores for overhead distribution -
(Type 4G-1) - (Cables with aluminium conductors)
4 J Bundle assembled cores for overhead service (Types 4J-1 A2
Withdrawn section and
and 4J-2) - (Cables with aluminium conductors (Type 4J-1)
replaced by the new
or with copper conductors (Type 4J-2))
one
Page 0-4
4 K Bundle assembled cores for overhead service -
(Type 4K-1) - (Cables with aluminium conductors)
4 M Bundle assembled cores for overhead distribution and A2 Amended section
service (Type 4M-1) - (Cables with aluminium conductors)
4 N
Bundle assembled cores for overhead distribution A2 Withdrawn section and
(Type 4N-1) - (Cables with aluminium conductors) replaced by the new
one
PART 5 PE INSULATED CABLES WITH MESSENGER
(bundle assembled cores)
5 D Bundle assembled cores for overhead distribution and A2
Withdrawn section and
service (Type 5D-1) - (Cables with aluminium phase
replaced by the new
conductors and uninsulated aluminium alloy neutral
one
conductor)
5 I Bundle assembled cores for overhead service (Type 5I-1) -
- (Cables with aluminium phase conductors and stranded
steel messenger alloy neutral conductor)
PART 6 XLPE INSULATED CABLES WITH MESSENGER
(bundle assembled cores)
6 B Bundle assembled cores for overhead distribution A2 Amended section
(Type 6B-1) - (Cables with aluminium phase conductors
and aluminium alloy neutral conductor)
6 D Bundle assembled cores for overhead distribution and A2
Withdrawn section and
service (Type 6D-1) - (Cables with aluminium phase
replaced by the new
conductors and aluminium alloy neutral conductor)
one
6 E Bundle assembled cores for overhead distribution A2 Amended section
(Type 6E-1) - (Cables with aluminium phase conductors
and aluminium alloy neutral conductor)
6 J Bundle assembled cores for overhead distribution A2
Withdrawn section and
(Type 6J-1) - (Cables with aluminium phase conductors
replaced by the new
and aluminium alloy neutral conductor)
one
6 K Bundle assembled cores for overhead distribution -
(Type 6K-1) - (Cables with aluminium phase conductors
and aluminium alloy neutral conductor)
6 N Bundle assembled cores for overhead distribution A2
Amended section
(Type 6N-1) - (Cables with aluminium phase conductors
and aluminium alloy neutral conductor)

Page 0-5
PART 7 XLPE INSULATED AND SHEATHED SELF SUPPORTING CABLES
(bundle assembled cores)
7 H 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 XLPE INSULATED AND PVC SHEATHED CABLES WITH MESSENGER
(bundle assembled cores)
8 H Bundle assembled cores for overhead distribution and -
service (type 8H), Neutral conductor messenger XLPE
insulated cables - (Cables with aluminium phase
conductors and aluminium alloy neutral conductor)
PART 9 SINGLE CORE CABLES
9 F Single cores for overhead distribution and service A1 New section
(Type 9F-1) - (XLPE insulated core with aluminium
conductors)
9 G Single cores for overhead distribution and service A1 New section
(Type 9G-1) - (XLPE insulated core with aluminium
conductors)
9 I Single cores for overhead distribution and service A1 New section
(Type 9I-1) - (PE insulated core with aluminium
conductors)
9N Single cores for overhead distribution (Type 9N-1 and A1 New section
Type 9N-2) - (EPR insulated and PCP sheath cables with
aluminium conductors Type 9N-1 or with copper
conductors Type 9N-2)
PART 10 SERVICE CABLES WITH CONCENTRIC NEUTRAL CONDUCTOR
10 N Single core and three cores service cables with concentric A1 New section
neutral conductor (Type 10N) -(Cables with tinned copper
phase conductors and tinned copper concentric neutral
conductor)
Page 0-6
CONTENTS OF HD 626/A1
PART 0 (new)
PART 1 GENERAL REQUIREMENTS (complete part with new pages 3, 8, 9, 16, 17)
PART 4 XLPE INSULATED SELF SUPPORTING CABLES
(bundle assembled cores)
4 F Bundle assembled cores for overhead distribution and A1 Amended pages 4
service (Type 4F-1) - (Cables with aluminium conductors). and 5
(amendment to pages 4-F and 5-F)
PART 9 SINGLE CORE CABLES (new)
9 F Single cores for overhead distribution and service A1 New section
(Type 9F-1) - (XLPE insulated core with aluminium
conductors)
9 G Single cores for overhead distribution and service A1 New section
(Type 9G-1) - (XLPE insulated core with aluminium
conductors)
9 I Single cores for overhead distribution and service A1 New section
(Type 9I-1) - (PE insulated core with aluminium
conductors)
9 N Single cores for overhead distribution (Type 9N-1 and A1 New section
Type 9N-2) - (EPR insulated and PCP sheath cables with
aluminium conductors Type 9N-1 or with copper
conductors Type 9N-2)
PART 10 SERVICE CABLES WITH CONCENTRIC NEUTRAL CONDUCTOR (new)
10 N Single core and three cores service cables with concentric A1 New section
neutral conductor (Type 10N-1) - (Cables with tinned
copper phase conductors and tinned copper concentric
neutral conductor)
NOTE  During the preparation of amendment 1 to HD 626, HD 505 (Sections 1.1 to 4.1 inclusive) has been replaced by EN 60811
(Sections 1-1 to 4-1 inclusive).
In general, the updating of these references has not been included in this amendment unless a complete section has been introduced or
replaced but users should refer to EN 60811 for the most up-to-date information. The clause numbers for the test methods in EN 60811 are
identical to those in HD 505.

Page 0-7
CONTENTS OF HD 626/A2
PART 0 CONTENTS OF HD 626 and HD 626/A1 A2 Withdrawn section and
replaced by the new
one
PART 2 ADDITIONAL TEST METHODS A2 Amended section
PART 4 XLPE INSULATED SELF SUPPORTING CABLES
(bundle assembled cores)
4 B Bundle assembled cores for overhead service A2 Amended section
(Types 4B-1 and 4B-2) - (Cables with aluminium
conductors (Type 4B-1) or with copper conductors
(Type 4B-2))
4 E Bundle assembled cores for overhead service (Type 4E-1) A2 Amended section
- (Cables with aluminium conductors)
4 J Bundle assembled cores for overhead service (Types 4J-1 A2
Withdrawn section and
and 4J-2) - (Cables with aluminium conductors (Type 4J-1)
replaced by the new
or with copper conductors (Type 4J-2))
one
4 M Bundle assembled cores for overhead distribution and A2 Amended section
service (Type 4M-1) - (Cables with aluminium conductors)
4 N
Bundle assembled cores for overhead distribution A2 Withdrawn section and
(Type 4N-1) replaced by the new
one
PART 5 PE INSULATED CABLES WITH MESSENGER
(bundle assembled cores)
5 D Bundle assembled cores for overhead distribution and A2
Withdrawn section and
service (Type 5D-1) - (Cables with aluminium phase
replaced by the new
conductors and uninsulated aluminium alloy neutral
one
conductor)
PART 6 XLPE INSULATED CABLES WITH MESSENGER
(bundle assembled cores)
6 B Bundle assembled cores for overhead distribution A2 Amended section
(Type 6B-1) - (Cables with aluminium phase conductors
and aluminium alloy neutral conductor)
6 D Bundle assembled cores for overhead distribution and A2
Withdrawn section and
service (Type 6D-1) - (Cables with aluminium phase
replaced by the new
conductors and aluminium alloy neutral conductor)
one
6 E Bundle assembled cores for overhead distribution A2 Amended section
(Type 6E-1) - (Cables with aluminium phase conductors
and aluminium alloy neutral conductor)

Page 0-8
6 J Bundle assembled cores for overhead distribution A2
Withdrawn section and
(Type 6J-1) - (Cables with aluminium phase conductors
replaced by the new
and aluminium alloy neutral conductor)
one
6 N Bundle assembled cores for overhead distribution A2
Amended section
(Type 6N-1)
Page 2-0
Part 2
HD 626 - BUNDLE ASSEMBLED CORES FOR OVERHEAD DISTRIBUTION AND SERVICE
PART 2 - ADDITIONAL TEST METHODS
Replace the pages:
2-9, 2-13, 2-14, 2-15, 2-16, 2-19, 2-32, 2-34, 2-35 and 2-36
by the following A2 referred pages:
2-9, 2-13, 2-14, 2-15, 2-16, 2-19, 2-32, 2-32-a, 2-32-b, 2-32-c, 2-34, 2-35 and 2-36

Page 2-9
Part 2
4 Test procedure
1 Adjusting the clamp by a gradual application for about 30 s of the tensile stress F till
680 daN.
2 The tensile stress of 680 daN is maintained during 15 min.
3 Measure the eventual conductor length L, which could appear between the reference mark
and the insulation.
5 Test results
After 15 minutes under load
- if L ≤ 1 mm, the test is considered as satisfactory,
- if L > 1 mm, 2 new tests must be made.
The material is considered as satisfactory if the 2 complementary tests have a value result of
L ≤ 1 mm.
2.2.2 Testing of adherence of insulation on messenger conductor (Method 2)
The test shall be carried out on the messenger after pre-conditioning in air oven at 120°C for 1 hour
according to clause 8 of EN 60811-1-2, followed by a natural cooling of at least 16 h at ambient
temperature. The preconditioning at 120°C is optional but in case of doubt, this preconditioning shall
be performed.
Test procedure
This test shall be carried out according to Figure 2.2.2.1.
The device shall still be capable of rotating, such rotation shall be made easier by a ball-bearing so
as not to impair the slipping-out of the grips according to the lay of pitch.
Six test pieces shall be taken and shall be evenly distributed over a length of at least 10 m.
Both the size and shape of test pieces are defined in Figure 2.2.2.1.
The tensile rate shall be (2 ± 1) cm/min and one shall measure the stress T required initiating the
g
sliding of the conductor in its sheath.
Results to be obtained
For all test-pieces, the minimum value of T shall be greater or equal to 18 daN or to the values
g
given in the particular section.

Page 2-13
Part 2
2 OFF-M8 Grade bolt
Section XX4
2 OFF-8 ø CLEAR
X
Threaded insert
See inset
X' 2 OFF-3.2 ø Dowels
( to enter screw bush )
2 OFF-8 ø TAP
0.51
Thread core
diameter
1.26 Thread per mm
THREAD INSERT DETAILS
Figure 2.2.4.2
2.2.5 Testing of adherence of insulation on messenger conductor (Method 5)
The test shall be carried out on the messenger after pre-conditioning in air oven at 120°C for 1 hour
according to clause 8 of EN 60811-1-2, followed by a natural cooling of at least 16 h at ambient
temperature. The preconditioning at 120°C is optional but in case of doubt this preconditioning shall
be performed.
Test procedure
This test shall be carried out according to the diagram shown in Figure 2.2.5.1.
The reference anchor is given in Figure 2.3.1.2.
35.35
3.2
28.65
Page 2-14
Part 2
Six test-pieces shall be taken and shall be evenly distributed over a length of at least 6 m.
Both the size and shape of test-pieces are defined in Figure 2.2.5.1.
10 cm
10 cm 25 cm
2 cm 3 cm
AB
C
1 cm
Force
Force
reference anchor
Figure 2.2.5.1 Diagram - Dimensions of test pieces
The insulation is completely cut in A and in B.
The anchor compresses the messenger with a force of
- (2000 ± 100) daN (for 54,6 mm messenger),
- (2700 ± 100) daN (for 70 mm messenger),
- (3200 ± 100) daN (for 95 mm messenger) (provisional value).
A tensile force is applied between the reference clamp and the free end of the messenger firmly
maintained with an appropriate tightening device.
The tensile force is applied at least 10 min after installing the test sample in the clamp.
The force increase rate shall be between 250 daN/min and 500 daN/min and one shall measure the
found during initiating the sliding of the conductor in its sheath until point C.
maximum stress T
F
Results to be obtained
The mean value T of the six pieces shall be greater or equal to
F
- 1200 daN (for 54,6 mm messenger) (provisional value),
- 1600 daN (for 70 mm messenger) (provisional value),
- 2000 daN (for 95 mm messenger) (provisional value).

Page 2-15
Part 2
2.3 THERMOMECHANICAL BEHAVIOUR OF MESSENGER
2.3.1 Thermomechanical behaviour of messenger (Method 1)
2 2 2
, on 70 mm or on 95 mm messenger conductor sample
The test shall be carried out on a 54,6 mm
of 5 m to 10 m long according to the following sketch. An additional sample is also required to
determine the reference value T (see § 3 hereafter).
o
The test shall be carried out on the messenger after pre-conditioning in air oven at 120 °C for 1 hour
according to clause 8 of EN 60811-1-2, followed by a natural cooling of at least 16 h at ambient
temperature. The preconditioning at 120 °C is optional but in case of doubt, this preconditioning shall
be performed.
1 - Test procedure
The type test shall be carried out according to the diagram shown in Figure 2.3.1.1.
Free rotating
of the a
nchoring
Reference
Strain bearing
device
anchoring
Dynamo-
Overload
Load
Anchoring neutral core
metric
device
under test
device
cell
5 to 10 m
Figure 2.3.1.1 - Diagram of installations intended for testing the behaviour of messenger
neutral core under thermal and mechanical stresses
The reference anchor device shown on this graph is a device with compression by spring, the shape
of which is as defined on the drawing given in Figure 2.3.1.2. The casing is in aluminium alloy and
the keys in polyamid 6.
The test shall consist in imposing a mechanical stress on the anchor device and the messenger
neutral core with periodical applications of an mechanical overload.
One shall superimpose on the mechanical stresses a thermal cycle obtained by intermittent currents
flowing through the messenger neutral core; the mechanical overload shall always be applied in cold
period.
Page 2-16
Part 2
Screw M 16 Spring in steel
AGS
(603, 0,+ 60)N/mm
Screw CHC M6 Polyamid 6 AGS Steel
see fig. a
(1)
Figure 2.3.1.2 - Reference anchor device for messenger neutral core
2 mm
5 mm
B
A
Figure a
250 mm
Cross-section Ø A Ø B
(mm ) (mm) (mm)
54,6 13,5 15,5
70 14,1 16,1
Under consideration Under consideration

(1)
It is essential to make all necessary arrangements to avoid a circulating current in the anchor devices.

Page 2-19
Part 2
Sliding test
The sliding of the insulating sheath of the neutral core as against the part ensuring the clamping shall
comply with the following requirements:
after 2 cycles g  ≤ 4 mm;
- sliding g
2 2
after 500 cycles g ≤ 5 mm.
- sliding g
500 500
Depth of indentation measurement
The sheath of the messenger neutral core shall be cut in the areas appearing as the most distorted.
The residual thicknesses e and e of the insulating material shall be measured by means of a
1 2
microscope (Figure 2.3.1.4).
E1
e1
e2
E2
Figure 2.3.1.4 Figure 2.3.1.5
The minimum values obtained e and e are compared to the minimum value of the thickness E and
1 2 1
E measured on the neutral core sheath, on the same line, at a distance of one or several pitches, on
the part not subjected to the mechanical constraint (Figure 2.3.1.5).
The depth of indentation, expressed in %, is defined by the formula:
�E �E �� �e �e �
1 2 1 2
F(%)� �100
��E �E
1 2
It shall be less than 25 (provisional value).

Page 2-32
Part 2
Table 2.3.5.2 - Data of sizing device for the mechanical test of the messenger
Cross-section
of the messenger   (mm )  54,6 80
N° of rod  5  6
Diameter o f rod   (mm)    3,45     3,71
Total length    (mm) 750 900
Minimum protection length (mm) 620 760
Identification of rods blue yellow
Nature of rods Al
Direction of laying "Z"
2.3.6 Behaviour of cable under combined thermal and mechanical stresses
(Method 6 – Self-supporting cables)
This test shall be carried out on a sample of 6 to 11 m long from the complete cable, according to the
diagram given in Figure 2.3.6.1. The sample shall consist of all the assembled cores of the cable.
Anchoring
Cable sample Anchoring
device
(the public device
lighting core, if
any, is not
stressed)
Figure 2.3.6.1 – Diagram of installations intended for testing the behavior of self-supporting
cable under combined thermal and mechanical stresses
The anchoring devices shown in this diagram are not specified, but they shall be provided by the cable
manufacturer. However, the contact length between each core and the clamps of the anchoring device
shall not exceed 120 mm. The anchoring devices shall be mounted on the cable sample according to
the cable manufacturer's directives.
1 - Test procedure
The test shall be carried out at an ambient temperature (not lower than 10 °C).
During the test, the three phase cores and the neutral core of the cable sample are subjected to a
mechanical stress between the two anchoring devices and a mechanical overload is periodically
superimposed on this stress. The public lighting core, if any, is not stressed.

Page 2-32-a
Part 2
In addition to the mechanical stress, a thermal cycle is applied by intermittently supplying a current
through all the stressed conductors of the cable sample. The mechanical overload shall be applied
during the cold period of the thermal cycle.
For cables having phase and neutral conductor cross-section equal to 120 mm , the basic cycle lasts
110 min (see note after thermal and mechanical stresses), during which both mechanical and thermal
stresses are applied in the cable sample as follows:
Thermal stress
During the first 45 minutes of the cycle, heating is achieved by supplying a current of a density
2 2
between 3 A/mm and 5 A/mm through each stressed conductor of the cable sample (i.e. the three
phase conductors and the neutral conductor). Current shall not be supplied to any other conductor,
such as the public lighting conductor, if any. The temperature of each heated conductor shall be
sustained at (60 � 3)°C.
After heating, the conductors of the cable sample shall be left to cool down naturally to (25 � 3)°C by
removing the current supply. The temperature of each conductor shall be sustained at this value until
the end of the cycle.
Mechanical stress
During the first 95 minutes of the cycle, the mechanical stress shall be held to 20% of the total
minimum specified breaking load of the four stressed conductors of the cable sample (i.e. 4 times the
minimum specified of the breaking load of the phase or neutral conductor). The minimum specified
breaking load of each conductor is given in the particular section of this HD.
During the last 15 min of the cycle, the mechanical stress shall be increased to 40% of the total
breaking load of the four stressed conductors. This overload shall be applied gradually in a time
interval greater or equal to 5 s.
NOTE After heating - during the thermal stress - the time needed for the cable sample to almost retrieve the ambient temperature
(usually between 20 – 25 �C) depends on the cable’s time constant T (it should be at least 3 times greater than T). The thermal and
2 2
mechanical stress periods of the cycles shown in Figure 2.3.6.2 apply only for the 4 x 120 mm Al + 25 mm Al cable. Thermal and
mechanical stress periods for other cable sizes are under consideration.
The number of cycles is set to 500.
A schematic representation of the cycles is given in Figure 2.3.6.2.

Page 2-32-b
Part 2
temperature mechanical strength
ºC
daN
40% of the
total breaking
load of the
four cores
under stress
20% of the
total breaking
load of the
four cores
under stress
min
Figure 2.3.6.2 - Graph of thermal cycles imposed on self-supporting cable under mechanical
stress for 120 mm phase and neutral conductor cross-section
2 - Results to be obtained
Sliding test
The sliding of the insulating sheath in relation to the part ensuring the clamping shall comply with the
following requirements:
- sliding after 2 cycles g  � 4 mm
- sliding after 500 cycles g � 5 mm
Voltage test
After the endurance cycles, the cable sample fitted with its anchoring device shall be immersed in
water and each of the four stressed cores shall be subjected to a dielectric strength test (10 kV ac for
30 min).
Crushing test
After removing the anchoring device, the insulating sheath of each core of the cable sample shall be
cut in the areas appearing as the most distorted. The residual thickness e of the insulating sheath
m
shall be measured by means of a microscope.
�
The minimum value e obtained shall be compared to the minimum value of the thickness e of the
m
m
insulating sheath measured on a new core from the complete cable.
Page 2-32-c
Part 2
The crushing, expressed in %, is defined by the formula:
o
e � e
m
m
�100
o
e m
It shall be less than 30.
2.4 BENDING TESTS
2.4.1 Wrapping test (Method 1)
This wire shall be wrapped round a wire of its own diameter to form a close helix of eight turns. Six
turns shall then be unwrapped and again closely rewrapped in the same direction as the first
wrapping.
2.4.2 Bending test at low temperature (Method 2)
Before the test, conductor samples must be maintained 16 hours at (- 40 ± 2)°C temperature. The
sample shall then be bent around a test mandrel turning the sample around the mandrel 180°. The
sample shall then be straightened. This operation shall be repeated once by bending the cable to the
opposite direction.
No cracks visible to the naked eye are allowed and all the conductor wires shall be unbroken.
The diameter of the test mandrel shall be 4 times the diameter of the insulated conductor.
2.4.3 Manoeuvrability test (Method 3)
This test will be conducted on the complete bundle of the following compositions:
- 3 x  25 Al / 54,6 Alm
- 3 x  50 Al / 54,6 Alm
- 3 x  95 Al / 54,6 Alm
- 3 x 150 Al / 80  Alm
Test method
The test is performed as per the schematic diagram and the sample (Figure 2.4.3.1).
The pulling machine will be equipped with a graphic stress recorder.
The tests will be carried out on five samples.

Page 2-34
Part 2
When setting up the samples, special care should be taken in the straightening and tying so that the
bundle is not twisted or unbraided.
The test sample will be set in place at the top of the two pulleys and the third pulley will then be
brought up until it contacts the test specimen and is then kept in this position. The plotting system is
then switched on to record the stress and displacement curve. Displacement of the pulling machine
jaws is then commenced at a rate of (500 ± 5) mm/min, until reaching a displacement of at least 180
mm. The sample will be in the form of a "U".
Results to be obtained
The test is considered satisfactory when the median of the maximum stresses obtained of the five
samples for the different compositions does not exceed that specified in Table 2.4.3.2.
Table 2.4.3.2 - Manoeuvrability Test Data
(1)
Compositions Maximum stress
daN
- 3 x  25 Al / 54,6 Alm 20
- 3 x  50 Al / 54,6 Alm 30
- 3 x  95 Al / 54,6 Alm 50
- 3 x 150 Al / 80  Alm 96
(1)
These data are considered informative for one year from the publication of the standard and they are
considered fixed if no modification is issued.
2.5 RESISTANCE OF THE INSULATION TO WEATHER CONDITIONS
2.5.1 Resistance of the insulation to weather conditions (Method 1)
The test is carried out on insulation taken from phase cores and from messenger.
These samples are subjected to the climatic ageing test in a special test cabinet as follows:
- under light beam coming from a xenon-lamp;
continuous luminous wavelength between: 340 nm and 400 nm (i.e. in a band of the
ultraviolet spectrum)
average irradiation: (2,2 ± 0,2) mW/cm
- at a maximum temperature cabinet � ; (70 + 2) °C (measured with a square black
E
panel thermometer)
- under water sprinkling;
resistivity of the water: ≥ 10 Ω.cm
angle of rain: about 50°
3 -1
flow rate: 15 to 25 dm .h by sprinkler
duration: 3 min every 20 min when specified
temperature: 10°C to 30°C
- at low temperature of - (25 ± 2) °C when specified.
The weekly cycles are given in Table 2.5.1.1 and Figure 2.5.1.2.

Page 2-35
Part 2
Type of test piece and test result
The test shall be performed in preparing three batches of six test pieces including one reference
batch. The test pieces similar to those specified for the tensile test are placed on supports allowing to
apply to them in their middle part, a relative elongation of 20% (these supports are generally in
vertical position).
- The reference batch shall be kept at the temperature under mechanical stress, avoiding direct
sunlight, throughout the duration of testing.
- The first and the second batch shall be subjected to weathering effects during three weekly
cycles.
- The first batch is then removed from the cabinet and conditioned alike the reference batch.
- The second batch shall be maintained in the cabinet and subjected to weathering effects during
the
last three weekly cycles.
Table 2.5.1.1 - Weekly conditioning cycles
Conditioning Elapsed time Temperature U.V. Sprinkling Relative humidity
(2)
(hours) (%)
�E (°C)
0 23 ± 3 yes no �
(1)
A 1 70 ± 2 yes no ≤ 30
(3)
71 � yes no �
(1)
B 72 55 ± 2 yes yes 60 ± 10
95 � yes no �
(1)
C 96 70 ± 2 yes yes ≤ 30
119 � yes yes �
120 55 ± 2 no yes ≥ 95 ± 5
121 � no no -
121,25 - 25 ± 2 no no -
122,25 � no no �
123,25 55 ± 2 no yes ≥ 95 ± 5
124,25 � no no -
D 124,5 - 25 ± 2 no no -
125,5 � no no �
126,5 55 ± 2 no yes ≥ 95 ± 5
144 � no no -
144,25 - 25 ± 2 no no -
145,25 � no no �
146,25 55 ± 2 no yes ≥ 95 ± 5
147,25 � no no -
147,5 - 25 ± 2 no no -
148,5 � no no �
149,5 55 ± 2 no yes ≥ 95 ± 5
166 � no no �
167 23 ± 3 no no ≤ 50
168 End of the weekly conditioning cycles
(1)
During A, B and C conditionings, the temperature of the square Black Panel Thermometer shall be maintained between
� + 15°C and � +20°C.
E E
(2)
Sprinkling water lasts 3 minutes per period of 20 minutes. During sprinkling time, temperature and relative humidity
requirements may not be respected.
(3)
���= Transition to.
Page 2-36
Part 2
After completion of the environmental testing, the test pieces shall be removed from their supports
and left, avoiding direct sunlight, at the laboratory ambient temperature, for at least 24 h.
On each of the above batches, the elongation at break (A.) and tensile strength (R.) of the test
pieces shall be measured, in accordance with EN 60811-1-1, 9.1, i.e. respectively
- reference batch: A and R
o o,
- 1st batch: A and R
1 1,
- 2nd batch: A and R .
2 2
The mean of the measured values shall comply with the following requirements:
A -A R -R
2 0 2 0
1) � 100� 30 � 100� 30
A R
0 0
A -A R -R
2 1 2 1
2) � 100� 15 � 100� 15
A R
0 0
Cabinet
�
temperature (°C)
E
Wednesday Wednesday Thursday Thursday Friday
Tuesday Wednesday
Friday Monday
11 am 9 am
4.30 pm 10 am 3.30 pm
9 am 9 am
10 am 9 am
23 h
23 h 46 h
1 h
1 h
70 h
1 h
A
B C
D
a)
RH = 60 % RH = 30 %
RH =30 % RH = 95 %
Sprinkling sprinkling sprinkling
U.V.
Elapsed
-
time (h)
0 72 96 120 144 149,5 168
126 5
,
RH = relative humidity
NOTE 1  Relative humidity in % and sprinkling requirement are only valid for + 55 °C level.
NOTE 2  The time table is an example.
Figure 2.5.1.2 - Weekly conditioning cycles
2.5.2 Resistance of the insulation to weather conditions (Method 2)
Test principle and definition of the light source
This test is based on the prolonged exposure of the flat surface of the outer side of the cable test
specimens to ultra-violet rays.

Page 4-B-0
Part 4 - Section B
Section 4B - Bundle assembled cores for overhead service (Types 4B-1 and 4B-2)
Replace the pages:
4-B-4, 4-B-5, 4-B-7, 4-B-8 and 4-B-12
by the following A2 referred pages:
4-B-4, 4-B-5, 4-B-7, 4-B-8 and 4-B-12

Page 4-B-4
Part 4 – Section B
2 Design requirements (concluded)
No Cable Component Requirements
HD Additional
HD 626-1,
5 Assembly of cores
Subclause 5.4
- Length of lay HD 626-4B, Table 3
- Hand of lay HD 626-4B, Table 3 Right
- Neutral in the middle of the Not applicable
bundle
6 Marking HD 626-1,
Subclause 3.1
6.1 Way of marking HD 626-4B,
Appendix A By indenting. The groove describes the
outline of the character. Width of the
groove: ≥ 0,5 mm
6.2 Indication of origin on the HD 626-4B, On the insulation of at least one core
insulating sheath Appendix A
6.3 Year of manufacture HD 626-4B, On the insulation of at least one core
Appendix A
6.4 Continuity of marks HD 626-4B, Distance between the end of one mark
Appendix A and the beginning of the next ≤ 2 cm for
phase 1
6.5 Legibility HD 626-1,
Subclause 3.4
6.6 Complete text of marking
including core identification )
on phase 1 ) HD 626-4B,
on phase 2 ) Appendix A
on phase 3 )
on neutral )
7 Code designation BAXB - BXB
(provisional) B aerial bundle
(1)
A Aluminium
X XLPE insulation
B Special code
(1)
If the character A is not present, the conductor is
in copper.
Page 4-B-5
Part 4 - Section B
3 Test requirements
1 Routine tests
12 3 4
No Tests Requirements Tests Methods
1 High voltage test HD 605,
- Sample: for all manufacturing length Subclause 3.2.1.1 b
- Immersion duration     ≥1 hour
HD 626-1, Subclause 3.2.1
- Test voltage     4 kV AC
or   9,6 kV DC No breakdown
- Duration of test 5 min
- Ambient temperature
2 Electrical resistance of all conductors on all HD 626-4B, Table 2 HD 605, Subclause 3.1.1
lengths of finished cables (resistance)
3 Checking of the construction HD 626-4B, Visual examination
Section 2
4 Core identification HD 626-4B, Visual examination
Section 2
5 Insulation resistivity at room temperature HD 626-1, HD 605, Subclause 3.3.1
Table 2, type TIX-1 (to carry out after test 1)
2 Sample tests
12 3 4
No Test Requirements Test method
1 Construction of conductor
1.1 - Dimensions HD 626-4B, Section 2
1.2 - Breaking load of conductor HD 626-4B, Table 2
2 Insulation
2.1 - Thickness HD 626-4B, Table 1 EN 60811-1-1, Subclause 8.1
2.2 - Mechanical properties HD 626-1, Table 2, EN 60811-1-1, Subclause 9.1
before ageing type TIX-1 EN 60811-1-2, Subclause 8.1
2.3 - Hot set test HD 626-1, Table 2, EN 60811-2-1, Clause 9
type TIX-1
3 Complete cables
3.1 - Construction HD 626-4B,
Section 2,
- Lay pitch of cores Table 3 Measurement with rule graduated in
centimetres direct reading
- Marking Appendix A
- Core identification Appendix A Examen visuel
3.2 - Measurement of the length of Inspection
the completed cable lengths
Page 4-B-7
Part 4 - Section B
3 Test requirements (concluded)
4 Type tests (non-electrical) (concluded)
12 3 4
No Tests Requirements Tests Methods
2.3 Test at low temperature
- Bending test after ageing HD 626-1, Table 2, EN 60811-1-2, Subclause 8.1
type TIX-1 EN 60811-1-4, Subclause 8.1
-Dielectric test No breakdown
Test voltage       4 kV AC
Duration of test       5 min
2.4 Test at low temperature
- Impact before ageing HD 626-1, Table 2,
Height       10 cm type TIX-1 EN 60811-1-4, Subclause 8.5
Mass of hammer 1 000 g No crack
- Impact after ageing HD 626-1, Table 2, EN 60811-1-2, Subclause 8.1
Height       10 cm type TIX-1
Mass of hammer 1 000 g No crack EN 60811-1-4, Subclause 8.5
2.5 Weathering resistance test optional Under consideration
2.6 Carbon black content HD 626-1, Table 2, EN 60811-4-1, Clause 11
type TIX-1
≥ 3 %
2.7 Shrinkage test at high temperature HD 626-1, Table 2, EN 60811-1-3, Clause 10
type TIX-1
≤ 4 %
2.8 Mechanical properties HD 626-1, Table 2, EN 60811-1-1, Subclause 9.1
before and after ageing type TIX-1 EN 60811-1-2, Subclause 8.1
3 Test on complete cable
3.1 Construction
- Lay pitch of cores HD 626-4B, Measurement with rule graduated
Table 3 in centimetres direct reading
3.2 Marks and identification HD 626-4B, Visual examination
Appendix A
3.3 Core identification HD 626-4B, Visual examination
Appendix A
4 Guide to use: see HD 626-1, Clause 9
5 Current-carrying capacity: see Appendix B

Page 4-B-8
Part 4 – Section B
6 Appendix
Table 1 - Core dimensions
Section Conductor diameter Nominal Diameter on insulation
(nominal) thickness of
Metal min. max. min. max.
the
insulation
(mm ) (mm) (mm) (mm) (mm) (mm)
Aluminium 16 4,6 5,1 1,2 7,0
7,7
(type 4B1) 25 5,8 6,3 1,4 8,6
9,4
Copper 6 2,9 3,3 1,2 5,3
5,8
(type 4B2) 10 3,7 4,1 1,2 6,1
6,6
16 4,6 5,1 1,2 7,0
7,7
Table 2 - Conductors
Metal Nominal section Minimum number Linear resistance Breaking load
of strands at 20°C
(mm ) max. (Ω/km) min. (daN)
Aluminium 16 6 1,91 190
(type 4B1) 25 6 1,20 300
Copper 6 6 3,08 200
(type 4B2) 10 6 1,83 340
16 6 1,15 540
Page 4-B-12
Part 4 – Section B
6 Appendix (concluded)
Appendix B
The maximum current ratings are given in Table B.1.
Wind and sun rays were not taken in account (consideration) for the calculation values given in Table B.1.
The maximum current ratings were calculated for a maximum conductor temperature of 90°C.
The reference ambient temperature is 30°C.
For temperature upper than 30°C, the correction factors are shown in Table B.2.
Only number and cross-section of phase cores must be used.
One doesn't consider the neutral core.
Table B.1 - Maximum current ratings
Nominal Number of cores
cross-section
Copper (A) Aluminium (A) Copper (A) Aluminium (A)
(mm )
6 65 - 53 -
10 89 - 74 -
16 - 90 100 76
*
25 - 120 - 103
*
Also used for one core cable.
Table B.2 - Correction factor
Ambient temperature (°C) Correction factor
30 1
35 0,96
40 0,91
45 0,87
50 0,82
Page 4-E-0
Part 4 - Section E
Section 4E - Bundle assembled cores for overhead service (Type 4E-1)
Replace the pages:
4-E-2, 4-E-3, 4-E-5, 4-E-7, 4-E-8 and 4-E-11
by the following A2 referred pages:
4-E-2, 4-E-3, 4-E-5, 4-E-7, 4-E-8 and 4-E-11

Page 4-E-2
Part 4 – Section E
REFERENCES
References are made, in Section 4-E of HD 626, to other Parts of this HD and to other Harmonisation
Documents and International Standards as follows:
EN 60811 Common test methods for insulating and sheathing materials of electric cables
HD 48 Impulse test on cables and their accessories
HD 361 System for cable designation
HD 383 Conductors of insulated cables (endorsing IEC 60228 and IEC 60228A)
HD 605 Electric cables - Additional test methods
IEC 60502-1 Power cables with extruded insulation and their accessories for rated voltages from
1 kV (U = 1,2 kV) up to 30 kV (U = 36 kV) - Part 1: Cables for rated voltages from
m m
1 kV (U = 1,2 kV) up to 30 kV (U = 36 kV)
m m
In all cases, reference to another HD or EN or International Standard implies the latest edition of that
document.
1 General
This standard specifies the construction, dimensions and test requirements for bundle assembled
cores for overhead service (Type 4E-1) for rated voltage (U) of 1 kV for fixed installations.
(a) Insulating sheath material
The insulating sheath covered by this standard shall consist of black XLPE type TIX-5 and correspond
to Table 2 of HD 626-1.
(b) Rated voltage
The rated voltage U /U is equal to 0,6/1 kV.
o
(i) Definitions: see HD 626-1, Subclause 2.3
(c) Maximum rated conductor temperatures
(i) Normal operation 90°C
(ii) Short-circuit (5 s. maximum duration) 250°C

Page 4-E-3
Part 4 - Section E
2 Design requirements
No Cable Component Requirements
HD Additional
1 Conductor HD 626-1,
Subclause 5.1
1.1 Phase conductors for service
cables
(1)
1.1.1 Material HD 626-1, Aluminium 1350
Subclause 5.1
1.1.2 Dimensions of circular stranded HD 383 Pitch: not required
conductors (minimum and Hand of lay: not required
maximum diameter)
Class 2 Compacted or uncompacted:
see Appendix A1, Table 1
16 mm min. 4,6 max. 5,1 mm
25 mm min. 5,8 max. 6,3 mm
1.2. Neutral Same properties as for phase
conductors
(1)
1.2.1 Material HD 626-1, Aluminium 1350
Subclause 5.1
1.3. Pilot cores (if any)
1.3.1 Material HD 626-1, Plain copper
Subclause 5.1
1.4 Tensile strength of phase Appendix A1, Table 1
conductors and neutral
conductor (TS)
(2)
1.4.1 Phase conductors
16 mm TS ≥ 190 daN
25 mm TS ≥ 300 daN
(2)
1.4.2 Neutral conductor Idem phases
1.5 Conductor resistance HD 605, Subclause 3.3.1
(maximum resistance at 20°C)
1.5.1 Phase conductors HD 383 Appendix A1, Table 1
1.5.2 Neutral conductor HD 383 Idem phases
1.5.3 Pilot cores: 1,5 mm plain HD 383
copper solid wire Appendix A1, Table 1
(1)
Aluminium 1350: minimum Al = 99,5 %.
(2)
The individual wires shall have, before stranding, a minimum tensile stress of 120 MPa.

Page 4-E-5
Part 4 - Section E
2 Design requirements (concluded)
No Cable Component Re
...