HD 629.1 S3:2019

SLOVENSKI STANDARD
SIST HD 629.1 S3:2019
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

tensions assignées de 3,6/6(7,2) kV à 20,8/36(42) kV - Partie 1: Accessoires pour câbles

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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

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-

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,

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

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

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

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

extruded insulation cables .............................................................................................. 24

Table 16 – Additional tests for compliance extension to other conductor connectors ........ 25

Table 17 – Additional tests for smallest cable cross section compliance ........................... 26

Table 18 — Additional tests for separable connector compliance extension to largest cable

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

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

This document (HD 629.1 S3:2019) has been prepared by CLC/TC 20, "Electric cables".

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

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

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.

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

Possible extra thermo-mechanical forces due to high current loads from renewable sources of power

Accessories for special applications such as submarine cables, ship cables or hazardous situations

(explosive environments, fire resistant cables or seismic conditions) are not included.

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

b) straight-joints, branch-joints, stop ends and loop joints of all designs, suitable for use

c) screened or unscreened plug-in type or bolted-type separable connectors, capable of interfacing

NOTE 2 Joints connecting extruded insulation cables (HD 620) to paper insulated cables (HD 621) are not included.

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)

- 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) -

U is the rated power-frequency voltage between conductor and earth or metallic screen, for which

U is the rated power-frequency voltage between conductors for which the cable accessory is

U is the maximum value of the 'highest system voltage' for which the cable accessory is designed.

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

The current rating of a separable connector is governed by the current rating of the mating bushing

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)

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

EN 61238-1, Compression and mechanical connectors for power cables for rated voltages up to 36 kV

EN 61442:2005, Test methods for accessories for power cables with rated voltages from 6 kV (U =

HD 620, Distribution cables with extruded insulation for rated voltages from 3,6/6 (7,2) kV to

IEC 60050-461, International Electrotechnical Vocabulary - Chapter 461: Electric cables

For the purposes of this document, the following terms and definitions given in IEC 60050-461 and

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

device for connecting a conductor to an equipment terminal or for connecting two or more conductors

device fitted to the end of a cable to ensure electrical connection with other parts of the system and

termination intended for use where it is not exposed to either solar radiation or weathering

termination intended for use where it is exposed to either solar radiation or weathering or both

indoor termination with additional insulation at the bushing connection and used in an air-filled

accessory suitable for use underground, indoors or outdoors, which makes a connection between two

accessory providing a means of insulating the unconnected end of an energized cable

accessory making an end connection between two parallel cables to form a continuous circuit

fully insulated termination permitting the connection and the disconnection of a cable to other

progressive degradation of the surface of a solid insulating material by local discharges to form

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

duration of the time interval components may be stored under specified conditions without changing

integral part of an elbow connector or other accessory device designed for the attachment of a live-

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

Where an accessory is to be installed with a different connector than that used for qualification, its

Compliance is demonstrated with the connector used in the tests. For extension of compliance to

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

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.

The cables used for testing should comply with HD 620 or other relevant cable standards and shall

- minimum and maximum nominal cross-sections, material and shape of cable conductor,

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.

Unless agreed differently with the manufacturer/supplier, the cross-sections of test cables shall be

For joints, terminations and stop ends, one of the following cable cross-sections shall be used:

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

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-

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

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.

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

For separable connectors, the conductor cross-section of the test cable shall be as defined in Table 3.

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

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.