HD 629.1 S3:2019

SLOVENSKI STANDARD
01-maj-2019
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SIST HD 629.1 S2:2006
SIST HD 629.1 S2:2006/A1:2009
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Test requirements for accessories for use on power cables of rated voltage from 3,6/6
(7,2) kV up to 20,8/36(42) kV - Part 1: Accessories for cables with extruded insulation
Prüfanforderungen für Kabelgarnituren für Starkstromkabel mit einer Nennspannung von
3,6/6(7,2) kV bis 20,8/36(42) kV - Teil 1: Garnituren für Kabel mit extrudierter
Kunststoffisolierung
Prescriptions relatives aux essais des accessoires des câbles d'énergie pour des
tensions assignées de 3,6/6(7,2) kV à 20,8/36(42) kV - Partie 1: Accessoires pour câbles
à isolation extrudée
Ta slovenski standard je istoveten z: HD 629-1-S3:2019
ICS:
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT HD 629-1-S3

DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
March 2019
ICS 29.060.20 Supersedes HD 629.1 S2:2006
English Version
Test requirements for accessories for use on power cables of
rated voltage from 3,6/6(7,2) kV up to 20,8/36(42) kV - Part 1:
Accessories for cables with extruded insulation
Prescriptions relatives aux essais des accessoires des Prüfanforderungen für Kabelgarnituren für Starkstromkabel
câbles d'énergie pour des tensions assignées de mit einer Nennspannung von 3,6/6(7,2) kV bis
3,6/6(7,2) kV à 20,8/36(42) kV - Partie 1: Accessoires pour 20,8/36(42) kV - Teil 1: Garnituren für Kabel mit extrudierter
câbles à isolation extrudée Kunststoffisolierung
This Harmonization Document was approved by CENELEC on 2019-02-06. CENELEC members are bound to comply with the
CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document at national level.
Up-to-date lists and bibliographical references concerning such national implementations may be obtained on application to the CEN-
CENELEC Management Centre or to any CENELEC member.
This Harmonization Document exists in three official versions (English, French, German).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. HD 629-1-S3:2019 E
Contents
Page
1 Scope . 5
1.1 General . 5
1.2 Type of accessories . 5
1.3 Rated voltage . 5
1.4 Current . 5
2 Normative references . 6
3 Terms and definitions . 6
4 Components . 9
4.1 Connectors . 9
4.2 Materials . 9
5 Test assemblies . 9
5.1 Identification . 9
5.2 Cable conductor cross-section . 9
5.3 Assembly . 11
5.4 Terminations . 11
5.5 Terminal boxes . 11
5.6 Joints and stop ends . 11
5.7 Separable connectors . 11
5.8 Test arrangements and number of samples . 12
6 Extent of compliance . 12
6.1 General . 12
6.2 Non range taking terminations, joints and stop ends . 12
6.3 Range taking terminations, joints and stop ends . 13
6.4 Terminations . 13
6.5 Separable connectors . 14
6.6 Connectors . 14
6.7 Cable constructions . 15
6.8 Three-core to single core accessory . 15
7 Test sequences . 16
7.1 General . 16
7.2 Dynamic short circuit performance . 16
8 Test results . 16
8.1 General . 16
8.2 Test reports . 16
8.3 Failures . 17
9 Visual examination . 17
Annex A (normative) Identification of test cable . 37
Annex B (normative) Identification of Connector . 38
Annex C (normative) Visual examination . 39
Annex D (informative) Examples for cross section selection . 40
Bibliography . 44
Tables
Table 1 — Compliance and qualification scheme for non range taking terminations, joints
and stop ends . 10
Table 2 — Compliance and qualification scheme for range taking terminations, joints, and
stop ends . 10
Table 3 — Test cable conductor cross-sections for separable connectors . 12
Table 4 — Extension of compliance and qualification scheme for non range taking
terminations, joints and stop ends . 13
Table 5 — Extension of compliance and qualification scheme for range taking terminations,
joints, and stop ends . 13
Table 6 — Compliance requirements of connectors for joints and terminations . 14
Table 7 – Compliance requirements of lugs for separable connectors . 15
Table 8 – Cable insulation compliance . 15
Table 9 — Extension of compliance from a three-core accessory to a single-core accessory
of the same design . 15
Table 10 — Indoor terminations for extruded insulation cables (including shrouded
terminations) . 18
Table 11 — Outdoor terminations for extruded insulation cables . 19
Table 12 — Straight joints, branch joints and loop joints for extruded insulation cables . 20
Table 13 — Stop ends for extruded insulation cables . 21
Table 14 — Screened separable connectors for extruded insulation cables . 22
Table 15 — Unscreened separable connectors (excluding shrouded terminations) for
extruded insulation cables . 24
(1)
Table 16 – Additional tests for compliance extension to other conductor connectors . 25
(1)
Table 17 – Additional tests for smallest cable cross section compliance . 26
Table 18 — Additional tests for separable connector compliance extension to largest cable
(1)
cross section . 27
Table 19 — Summary of test voltages . 28
Table D.1 — Example for Outdoor Terminations . 40
Table D.2 — Example for Joints . 41
Table D.3 — Example for Outdoor Terminations . 42
Table D.4 — Example for Joints . 43
Figures
Figure 1 — Test arrangements for non range taking terminations . 29
Figure 2 — Test arrangements for range taking terminations . 30
Figure 3 — Test arrangements for non range taking joints, loop joints and branch-joints . 31
Figure 4 — Test arrangements for range taking joints, loop joints and branch-joints . 32
Figure 5 — Test arrangements for non range taking stop ends . 33
Figure 6 — Test arrangements for range taking stop ends . 34
Figure 7 — Test arrangements for screened separable connectors. 35
Figure 8 — Test arrangements for unscreened separable connectors . 36
European foreword
This document (HD 629.1 S3:2019) has been prepared by CLC/TC 20, "Electric cables".
The following dates are fixed:
• latest date by which this document has to (dop) 2020-02-06
be implemented at national level by
publication of an identical national standard
or by endorsement
• latest date by which the national standards (dow) 2022-02-06
conflicting with this document have to be
withdrawn
This document supersedes HD 629.1 S2:2006 and its amendment A1:2008.
This Harmonization Document has been written as part of a series of standards to satisfy the Public
Procurement Directive, and is complementary to HD 620, which covers extruded insulation power
cables from 3,6/6(7,2) kV to 20,8/36(42) kV, inclusive.
This standard defines the requirements, which may be called up for joints, stop ends, separable
connectors, indoor and outdoor terminations when used with extruded insulation power cables
covered by HD 620. The equivalent requirements for paper-insulated power cables are given in
HD 629.2.
The test methods for these accessories are given in EN 61442:2005.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
__________
1 Scope
1.1 General
This document specifies performance requirements for type tests for cable accessories for use on
extruded insulation power cables as specified in HD 620 or other relevant cable standards.
Once type test for an accessory is successfully completed, it is not necessary to repeat the test,
unless changes are made in the materials, design or manufacturing process, which might affect the
performance characteristics.
Possible extra thermo-mechanical forces due to high current loads from renewable sources of power
generation are not covered by these tests (under consideration).
Accessories for special applications such as submarine cables, ship cables or hazardous situations
(explosive environments, fire resistant cables or seismic conditions) are not included.
Test methods are included in EN 61442:2005.
NOTE 1: This European Standard does not invalidate existing approvals of products achieved on the basis of national
standards and specifications and/or the demonstration of satisfactory service performance. However, products approved
according to such national standards or specifications cannot directly claim approval to this European standard.
NOTE 2: It may be possible, subject to agreement between supplier and purchaser, and/or the relevant conformity
assessment body, to demonstrate that conformity to the earlier standard can be used to claim conformity to this European
Standard, provided an assessment is made of any additional type testing that may need to be carried out. Any such additional
testing that is part of a sequence of testing cannot be done separately.
1.2 Type of accessories
The accessories covered by this standard are listed below:
a) indoor and outdoor terminations of all designs, including terminal boxes;
b) straight-joints, branch-joints, stop ends and loop joints of all designs, suitable for use
underground, indoors or outdoors;
NOTE 1 Tests specific for UV and outdoor weather resistance are not included.
c) screened or unscreened plug-in type or bolted-type separable connectors, capable of interfacing
with bushing profiles as specified in EN 50180 and EN 50181.
NOTE 2 Joints connecting extruded insulation cables (HD 620) to paper insulated cables (HD 621) are not included.
The requirements for these accessories are dealt with in HD 629.2.
1.3 Rated voltage
The rated voltages U /U (U ) of the accessories covered by this standard are 3,6/6(7,2) - 3,8/6,6(7,2)
0 m
- 6/10(12) - 6,35/11(12) - 8,7/15(17,5) - 12/20(24) - 12,7/22(24) - 18/30(36) - 19/33(36) -
20,8/36(42) kV where:
U is the rated power-frequency voltage between conductor and earth or metallic screen, for which
the cable accessory is designed;
U is the rated power-frequency voltage between conductors for which the cable accessory is
designed;
U is the maximum value of the 'highest system voltage' for which the cable accessory is designed.
m
1.4 Current
The continuous current rating of a termination or joint for extruded insulation power cables is in
accordance with the appropriate cable specified in HD 620 or other relevant cable standards and is
suitable for operation at the rated current and under short circuit fault conditions at the temperatures
stated therein.
The current rating of a separable connector is governed by the current rating of the mating bushing
(see EN 50180 and EN 50181).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
EN 50180, Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers
EN 50181, Plug-in type bushings above 1 kV up to 52 kV and from 250 A to 2.5 kA for equipment
other than liquid filled transformers
EN 61238-1, Compression and mechanical connectors for power cables for rated voltages up to 36 kV
(Um = 42 kV). Test methods and requirements
EN 61442:2005, Test methods for accessories for power cables with rated voltages from 6 kV (U =
m
7,2 kV) up to 36 kV (U = 42 kV)
m
HD 620, Distribution cables with extruded insulation for rated voltages from 3,6/6 (7,2) kV to
20,8/36 (42) kV
IEC 60050-461, International Electrotechnical Vocabulary - Chapter 461: Electric cables
3 Terms and definitions
For the purposes of this document, the following terms and definitions given in IEC 60050-461 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
connector (of cable)
device for connecting a conductor to an equipment terminal or for connecting two or more conductors
to each other
[SOURCE: IEC 61238-1 (IEV 461-17-03, modified)]
3.2
termination
device fitted to the end of a cable to ensure electrical connection with other parts of the system and
to maintain the insulation up to the point of connection
[SOURCE: IEV 461-10-01]
3.3
indoor termination
termination intended for use where it is not exposed to either solar radiation or weathering
[SOURCE: IEV 461-10-13]
3.4
outdoor termination
termination intended for use where it is exposed to either solar radiation or weathering or both
[SOURCE: IEV 461-10-14]
3.5
terminal box
air- or compound-filled box fully enclosing a termination
[SOURCE: IEV 461-10-03, modified]
3.6
shrouded termination
indoor termination with additional insulation at the bushing connection and used in an air-filled
terminal box
[SOURCE: IEV 461-10-21]
3.7
joint
accessory suitable for use underground, indoors or outdoors, which makes a connection between two
or more insulated power cables to form a continuous circuit
3.8
type I joint
joint suitable for use where impact resistance withstand is not required
3.9
type II joint
joint which has impact resistance withstand in accordance with this standard
3.10
straight-joint
accessory making a connection between two cables to form a continuous circuit
Note 1 to entry: For types of joint see 3.8 and 3.9.
[SOURCE: IEV 461-11-01]
3.11
branch-joint
accessory making a connection of a branch cable to a main cable
Note 1 to entry: For types of joint see 3.8 and 3.9.
[SOURCE: IEV 461-11-17]
3.12
stop end
accessory providing a means of insulating the unconnected end of an energized cable
Note 1 to entry: For types of joint see 3.8 and 3.9.
[SOURCE: IEV 461-10-07, modified]
3.13
loop joint
accessory making an end connection between two parallel cables to form a continuous circuit
constructed as a branch-joint with the single end replaced with a stop end
Note 1 to entry: For types of joint see 3.8 and 3.9.
3.14
separable connector
fully insulated termination permitting the connection and the disconnection of a cable to other
equipment
[SOURCE: IEV 461-10-06]
3.15
screened separable connector
separable connector which has a fully screened external surface
[SOURCE: IEV 461-10-15]
3.16
unscreened separable connector
separable connector which does not have a screened external surface
[SOURCE: IEV 461-10-15]
3.17
plug-in type separable connector
separable connector in which the electrical contact is made by a sliding device
[SOURCE: IEV 461-10-17]
3.18
bolted-type separable connector
separable connector in which the electrical contact is made by a bolted device
[SOURCE: IEV 461-10-18]
3.19
tracking
progressive degradation of the surface of a solid insulating material by local discharges to form
conducting or partially conducting paths
Note 1 to entry: Tracking usually occurs due to surface contamination.
[SOURCE: IEV 442-01-41]
3.20
erosion
wearing away of insulating material by the action of electric discharges
[SOURCE: IEV 212-11-55]
3.21
metallic housing
metal enclosure in intimate contact with the outer screen of a separable connector and having at least
the same current carrying capacity to earth as the metallic screen of the cable with which the
separable connector is to be used
3.22
shelf life / storage life
duration of the time interval components may be stored under specified conditions without changing
any important properties
[SOURCE: IEV 212-13-15, modified]
3.23
operating eye
integral part of an elbow connector or other accessory device designed for the attachment of a live-
line tool used to handle or operate the device
3.24
non range taking accessory
accessory designed for covering only one cable cross section
3.25
range taking accessory
accessory designed for covering a range of cable cross sections
4 Components
4.1 Connectors
Connectors used within the accessory shall comply with EN 61238-1 class A, or with another relevant
standard or specification when agreed between manufacturer/supplier. All connectors shall be
identified in accordance with Annex B.
Where an accessory is to be installed with a different connector than that used for qualification, its
compatibility and performance shall be verified.
Compliance is demonstrated with the connector used in the tests. For extension of compliance to
other connectors refer to 6.6.
4.2 Materials
It is not a prerequisite for compliance with this testing standard that any component material (resin,
heat-shrink tubing etc.) should be subject to any form of individual type testing or fingerprinting.
Where required, monitoring of the ongoing suitability of component material supplies should be done
by fingerprinting using the EN 50655.
If type testing of resins, pressure sensitive adhesive tapes and flexible insulating sleevings for
electrical purposes is required, reference should be made to the relevant standards produced by
IEC/TC 15, which have been adopted by CENELEC, as listed for information in the bibliography.
The term “material characterization” is sometimes used in conjunction with both type testing and
fingerprinting of component materials, but it is undefined, and its use should therefore be avoided.
5 Test assemblies
5.1 Identification
Cables
The cables used for testing should comply with HD 620 or other relevant cable standards and shall
be identified as in Annex A.
Connectors
Connectors used within the accessories shall be identified as in Annex B.
Accessories
The accessory that is installed shall be within its shelf life.
Accessories to be tested shall be correctly identified with respect to
- name of manufacturer/supplier,
- type, designation, manufacturing date or code, end of shelf-life date,
- minimum and maximum nominal cross-sections, material and shape of cable conductor,
- minimum and maximum cable insulation diameters,
- connector type(s),
- rated voltage (see 1.3),
- minimum value of U for separable connector screen fault current initiation,
- installation instructions (reference and date),
- list of kit contents.
The quantities and sizes of accessories and cables to be used in the different test sequences for
qualification of terminations, joints and stop ends and the resulting range of conductor cross-section
compliance are summarised in Table 1, Table 2, Table 4 and Table 5 and are further detailed below.
5.2 Cable conductor cross-section
Unless agreed differently with the manufacturer/supplier, the cross-sections of test cables shall be
the following:
Non range taking terminations, joints and stop ends
For joints, terminations and stop ends, one of the following cable cross-sections shall be used:
120 mm² or 150 mm² or 185 mm² or 240 mm².
Compliance for one type of accessory, for the range of cable cross-sections from 95 mm² to 300 mm²,
shall be obtained by successfully completing all the appropriate tests of Table 10 to Table 13 of this
standard on any one of the cable cross-sections specified above.
NOTE Examples are provided in informative Annex D.1.
Table 1 — Compliance and qualification scheme for non range taking
terminations, joints and stop ends
Range of
Cable cross-
cross-
a)
Accessory size tested section Test Sequences Samples
sections
selected
qualified
4 (1- core)
A1, B1, C1
one of:
2 (3- core)
120 mm²
95 mm² to
Specific for one of the
3 (1- core)
300 mm²
conductor sizes described 150 mm² A2, B2
1 (3- core)
in 5.2.1
185 mm²
3 (1- core)
240 mm² A3
1 (3- core)
a)
Test Sequences refer to Tables 10, 11, 12 & 13

Range taking terminations, joints and stop ends
For joints, terminations and stop ends, the behaviour of the accessory shall be tested at the limits of
the accessory application range. The accessory application range shall include one of the cable cross-
sections 120 mm² or 150 mm² or 185 mm² or 240 mm² within its range.
Tests described in sequences A1, B1, C1 of Table 10 to Table 13 shall be carried out with the
minimum and maximum cable cross section of the accessory, declared by the accessory
manufacturer/supplier as the range of application.
Tests described in sequence A2 and A3 of Table 10 and Table 11 and test sequence B2 of Table 12
shall be carried out on the maximum cable cross-section of the accessory application range.
NOTE Examples are provided in informative Annex D.2.
Table 2 — Compliance and qualification scheme for range taking
terminations, joints, and stop ends
Cable cross- Range of cross-
a)
Accessory size tested section Test Sequences Samples sections
selected qualified
2 (1- core)
Min of range A1, B1, C1
1 (3- core)
b)
Accessory test size ,
having at least one of the 2 (1- core) Min of range to
A1, B1, C1
conductor sizes described 1 (3- core) max of range
Max of range
in 5.2.2 within its range
3 (1- core)
A2, A3, B2
1 (3- core)
a)
Test Sequences refer to Tables 10, 11, 12 & 13
b)
The accessory test size of range taking accessory should have at least one of the sizes described in 5.2.2
within its range, but the min & max does not need to be one of these values. For example, the range could be
95 mm² to 300 mm².
Separable connectors
For separable connectors, the conductor cross-section of the test cable shall be as defined in Table 3.
5.3 Assembly
Accessories shall be assembled in accordance with the manufacturer/supplier's instructions, using
the components and materials supplied or specified. A joint designed for crossed cores shall be
assembled with the cores crossed.
5.4 Terminations
Non range taking terminations shall be tested using the arrangements detailed in Figure 1.
Range taking terminations shall be tested using the arrangements detailed in Figure 2.
In all cases the number of samples shall be as defined in the appropriate figure.
5.5 Terminal boxes
A termination intended to be used in a metallic terminal box shall be tested in the specified terminal
box, which shall conform to the relevant standards (for example EN 50588-3).
For practical reasons, it is permissible to carry out the tests with the terminations enclosed in a test
terminal box fabricated from rigid metallic mesh or from insulating material lined with metal foil. The
box shall allow humidity ingress.
The test terminal box shall be of the same shape and dimensions (e.g. creepage lengths and
clearances) as the specified terminal box and be provided with conductor terminals and bushings of
the type used in service. The box selected for testing should represent the minimum clearance
applicable for the design to operate successfully.
When only one of the termination samples is required to be tested in the terminal box, the remote end
of the test cable may be terminated by any suitable means.
5.6 Joints and stop ends
Joints and stop ends shall be tested to withstand a water height of 1 m (equivalent to 10 kPa relative).
NOTE 1 For special applications and in situations subject to a high water table or prone to flooding, this height of
water may be insufficient to ensure the satisfactory performance of the moisture seals.
Where a water height of 1 m is deemed insufficient, upon agreement with the manufacturer/supplier,
accessories shall be tested using an increased water height of 20 m (equivalent to 200 kPa relative).
The water height used shall be recorded in the test report.
Testing at one water height demonstrates compliance for that water height only.
Testing at both 1 m and 20 m water heights demonstrates compliance at those water heights and at
all intermediate water heights.
NOTE 2 The equivalent water height can be achieved using a pressurized water tank.
Where a branch-joint is being tested, only the main cable shall carry heating current.
5.7 Separable connectors
Tests on separable connectors shall be performed with the separable connector installed on its mating
bushing providing an interface given in EN 50180 or EN 50181.
Unscreened separable connectors shall be tested at the minimum phase-to-phase and phase-to-earth
clearances recommended by the manufacturer/supplier.
The current value shall be sufficient to achieve the specified temperature of the cable conductor (see
9.1 of EN 61442:2005).
Table 3 — Test cable conductor cross-sections for separable connectors
Rating of Cable conductor cross-section
separable (mm²)
connector
a) c), d)
Test sequence D1/E1 Test sequence D2/E2
(A)
Cu Al Cu Al
250 50 70 50 70
400 95 150 95 120
630 185 300 120 185
800 300 400 150 240
1 250 500 630 240 400
b)
2 500 2x500 2x630 500 800
a)
The use of the cross-sections in Table 3 may lead to overheating of the bushing
while achieving the required conductor temperature. Under these circumstances, it is
permissible to use a conductor one size smaller. If bushing failure occurs, the test will
be declared void (see 8.3).
b)
MV Cables with 2 500 A rating are not readily available. Separable connectors for
this rating are therefore tested with a dual cable connection, where two cables
connected in parallel each supply half of the total current.
c)
The equipment bushing short circuit rating of 25xI (4.3 of EN 60137) is limiting the
r
short circuit current value.
Cross-sections listed are selected to reach the cable short circuit temperature θ .
sc
d)
Sequence D2/E2 can be done on cable cross section from D1/E1.

5.8 Test arrangements and number of samples
Test arrangements and number of samples are summarised in Table 1, Table 2, Table 4 and Table 5
and detailed in Figure 1 to Figure 6 for terminations, joints and stop ends, and in Figure 7 and
Figure 8 for separable connectors.
These figures represent examples of test arrangements. Other arrangements and combinations of
different types of accessories in one loop are permitted.
6 Extent of compliance
6.1 General
Compliance shall extend the use of an accessory on cables of the same U as the test cable but with
equal or greater nominal insulation thickness. The converse shall not apply.
Compliance of an accessory tested for a specified U shall extend to operation of the accessory at a
provided that the radial electrical stress at the insulation screen of the cable of lower U is
lower U0 0
not greater than that of the test cable. Compliance of separable connectors used at a lower U is
subject to an additional requirement for screen fault initiation testing (see 6.5).
Compliance is independent of the cable conductor material; tests may be carried out with either
aluminium or copper conductors.
Compliance shall extend to all dynamic short circuit classes lower than that tested.
6.2 Non range taking terminations, joints and stop ends
Compliance for one type of accessory is defined in 5.2.1.
Extension of compliance for the same design of accessory to smaller or larger cable cross-sections
shall be obtained by satisfactory completion of relevant tests, according to Table 4.
NOTE "Same design" includes: same architecture, same manufacturing process, same conception, same materials, same
sealings, compatible electrical stress (maximum electrical stress less or equal to the maximum electric stress at the tested
cable accessory interface), compatible interfaces (interfaces of same or longer lengths between conductive parts). Other
differences observed between accessories are subject to an agreement between manufacturer/supplier and purchaser.
Table 4 — Extension of compliance and qualification scheme for non range taking
terminations, joints and stop ends
Cable cross- Range of cross-
Accessory size tested section Test Sequences a) Samples sections
selected qualified
Extension to
Smallest size for smallest 2 (1- core)
Smallest cable Table 17 smallest cable
cable <95 mm² 1 (3- core)
<95 mm²
Extension to
Largest size for largest 2 (1- core)
Largest cable A1, B1, C1 largest cable
cable >300 mm² 1 (3- core)
>300 mm²
a)
Test Sequences refer to Tables 10, 11, 12 & 13

6.3 Range taking terminations, joints and stop ends
Tests carried out on the limits of the accessory application range, according to 5.2.2, give compliance
for cross sections tested and intermediate cross sections.
Extension of compliance for the same design of accessory to smaller or larger cable cross-sections
shall be obtained by satisfactory completion of relevant tests, according to Table 5.
NOTE Same design includes: same architecture, same manufacturing process, same conception, same materials, same
sealings, compatible electrical stress (maximum electrical stress less or equal to the maximum electric stress at the tested
cable accessory interface), compatible interfaces (interfaces of same or longer lengths between conductive parts). Other
differences observed between accessories are subject to an agreement between manufacturer/supplier and purchaser.
Table 5 — Extension of compliance and qualification scheme for range taking
terminations, joints, and stop ends
Cable cross- Range of cross-
a)
Accessory size tested section Test Sequences Samples sections
selected qualified
2 (1- core) Extension to
Smallest size Smallest cable Table 17
1 (3- core) smallest cable
2 (1- core) Extension to
Largest size Largest cable A1, B1, C1
1 (3- core) largest cable
No test required as included within the range of smallest to largest
Intermediate size
a)
Test Sequences refer to Tables 10, 11, 12 & 13

6.4 Terminations
Compliance for a particular design of termination in a specified terminal box shall be obtained by the
satisfactory completion of the test sequence in Table 10. If compliance has already been obtained for
a termination design separate from the terminal box, it is necessary to carry out the test sequence
with only one of the terminations in a terminal box.
Satisfactory completion of the appropriate tests of Table 10 for a termination for one design of
terminal box may allow the compliance to be extended to that termination in another terminal box
design by comparison of the detail drawings of the boxes. If there are differences in the design and/or
dimensions, the impulse voltage test at ambient temperature shall be repeated, by agreement
between the manufacturer/supplier and the customer.
6.5 Separable connectors
Compliance for one type of separable connector, for the cross-section tested, shall be obtained by
successfully completing all the tests of Table 14 or Table 15 on the cross-section specified in Table 3.
In addition, for screened separable connectors, the screen fault current initiation test shall be done
at the lowest U for which compliance is required.
Extension of the range of compliance for the same type of separable connector to smaller cable
conductor cross-sections shall be obtained by successfully completing the additional test sequence
in Table 17, on the appropriate smaller cross-section.
Extension of the range of compliance for the same type of separable connector to larger cable
conductor cross-sections shall be obtained by successfully completing the additional test sequence
in Table 18, on the appropriate larger cross-section.
6.6 Connectors
The accessory qualification can be extended to an alternative connector, provided that the following
minimum requirements are satisfied (stop ends are excluded):
1. An accessory with an alternative connector shall be positively tested according to the test
sequence of Table 16 on the largest conductor size possible.
2. The alternative connector shall be qualified according to EN 61238-1, and shall be of the same
class as the qualified one and of the same cable conductor type.
3a. For joints and terminations, the alternative connector shall have the same technology (for
example: mechanical, compression) and a similar design criteria as the qualified one (see
Table 6).
3b. For separable connectors, different technologies and similar design criteria can be applied for
the barrel only (see Table 7). The palm of these lugs is usually adapted to a specific design of
separable connector.
4. If the alternative connector does not satisfy all of the requirements in points 2 and 3 above,
then relevant type tests according to Tables 10 to 15 shall be performed.
Table 6 — Compliance requirements of connectors for joints and terminations
Qualified connector Alternative connector
Hexagonal compression Hexagonal compression
Deep indent compression Deep indent compression
Mechanical Mechanical
a)
Barrel Length Equal or shorter
a)
Barrel Diameter Equal or smaller
Centered conductor Centered conductor
Off centered conductor Centered conductor
Cylindrical shape barrel Cylindrical shape barrel
Non cylindrical shape barrel Cylindrical shape barrel
Barrel corners Equal or larger radius
Screw protrusion Equal or less
Conductor axis spacing on branch side (for Equal
branch-joints and loop joints)
a)
Shorter and/or smaller connectors can lead to higher connector temperatures in the accessory
Table 7 — Compliance requirements of lugs for separable connectors
Qualified lug Alternative lug
Centered conductor Centered conductor
Off centered conductor Centered conductor
Screw protrusion Equal or less
NOTE Shorter and/or smaller connectors can lead to higher connector temperatures in the
accessory
6.7 Cable constructions
Accessories demonstrating compliance when tested on cables with shaped conductors are compliant
when used on cables with circular conductors without further testing. Accessories tested using circular
conductors demonstrate compliance with shaped conductors after successful completion of tests in
Table 10 to Table 15, test sequences A1, B1, C1, D1 and E1.
Compliance is dependent on the cable insulation as detailed in Table 8.
Table 8 — Cable insulation compliance
Test cable insulation Range of compliance
XLPE XLPE, HEPR, EPR
EPR or HEPR EPR, HEPR
NOTE: This table is only valid for cable insulation with the same or
lower operating temperature. Any other insulation should be subject
to separate compliance testing.

Accessories tested on cables with one type of non-metallic insulation screen demonstrate compliance
when used with another type of non-metallic insulation screen after successful completion of tests in
Table 10 to Table 15, test sequences A1, B1, C1, D1 and E1.
Accessories demonstrating compliance when tested on a cable without longitudinal water-blocking in
the metallic screen area are compliant when used on a cable with means of longitudinal water-
blocking in the metallic screen area but otherwise of the same design without further testing. The
converse shall not apply.
6.8 Three-core to single core accessory
Compliance obtained for a three-core accessory can be extended to a single-core accessory of the
same design by performing the tests specified in Table 9.
The converse shall not apply.
NOTE Triplex cables are handled as single core cables
Table 9 — Extension of compliance from a three-core accessory
to a single-core accessory of the same design
Cable accessory type Test-sequence
Indoor termination Table 10, tests 12 and 13
Outdoor termination Table 11, tests 6, 12, 13, 14, 15
Joints Table 12, tests 6, 7, 13, 14, 15
Stop ends Table 13, tests 6, 9, 10, 11
Screened separable connectors Table 14, tests 5, 12, 14, 15
Unscreened separable connectors Table 15, tests 5, 12, 13, 14, 15
7 Test sequences
7.1 General
The test sequences for the various types of accessory are detailed in Table 10 to Table 15, with
additional tests in Table 16 to Table 18. The test voltages are summarized in Table 19.
7.2 Dynamic short circuit performance
This test is a three-phase test required for single-core cable accessories designed for initial peak
current higher than 80 kA and for three-core cable accessories designed for initial peak current higher
than 63 kA.
Class 0 Three core accessories designed for initial peak current below 63 kA and single core
accessories designed for initial peak current below 80 kA.
No test required.
Class 1 Three core accessories designed for initial peak currents above 63 kA up to and
including 80 kA.
The test current shall be 80 kA initial peak.
Class 2 Three core and single core accessories desi
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