Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kV

This European Standard details the performance requirements and the test methods for type testing of cable accessories for use with power distribution cables of rated voltage 0,6/1,0 (1,2) kV as defined in HD 603 or other relevant cable standards. Cable accessories covered by this European Standard include joints, stop ends and outdoor terminations for extruded solid dielectric insulated cables and transition joints between extruded solid dielectric insulated and impregnated paper insulated cables. Joints, stop ends and outdoor terminations for impregnated paper insulated cables are not included. The service operating conditions of accessories should be compatible with the service operating conditions of cables on which they are to be installed. Accessories for special applications such as submarine, shipboard, explosive or seismic environments, or where specified fire performance characteristics are required, 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 testing that is part of a sequence of testing cannot be done separately.

Prüfverfahren und Prüfanforderungen für die Garnituren von Verteilerkabeln mit einer Nennspannung von 0,6/1,0 (1,2) kV

Diese Europäische Norm beschreibt Prüfverfahren und Mindestanforderungen für die Typprüfungen an Kabelgarnituren für Energieverteilungskabel mit Nennspannungen 0,6/1,0 (1,2) kV, wie in HD 603 bzw. anderen Normen für entsprechende Kabel festgelegt. Die in dieser Europäischen Norm behandelten Kabelgarnituren umfassen Muffen, Endmuffen und Freiluft-Endverschlüsse für extrudierte, kunststoffisolierte Kabel und Übergangsmuffen zwischen extrudierten, kunststoffisolierten Kabeln und Kabeln mit massegetränkter Papierisolierung. Nicht enthalten sind Muffen, Endmuffen und Freiluft-Endverschlüsse für Kabel mit massegetränkter Papierisolierung. Die Betriebsbedingungen für Garnituren sollten denen der Kabel angepasst sein, auf denen sie installiert werden. Diese Norm gilt nicht für Garnituren für spezielle Anwendungsbereiche, z.B. für Seekabel, Schiffskabel oder für den Einsatz in explosiver bzw. erdbebengefährdeter Umgebung oder einer Umgebung, in der besondere Leistungsparameter bezüglich der Feuerbeständigkeit erforderlich sind. ANMERKUNG 1 Durch diese Europäische Norm werden bestehende Zulassungen von Produkten nicht ungültig, die auf der Grundlage nationaler Normen und Spezifikationen und/oder des Nachweises der Funktionssicherheit erlangt wurden. Jedoch können nach nationalen Normen oder Spezifikationen zugelassene Garnituren nicht automatisch beanspruchen, als nach dieser Europäischen Norm zugelassen zu gelten. ANMERKUNG 2 Sofern eine Bewertung aller notwendigen Typprüfungen, die zusätzlich durchgeführt werden müssen, vorliegt, ist durch eine Vereinbarung zwischen Lieferant und Kunde und/oder der entsprechenden Konformitätsbewertungsstelle das Erbringen eines Nachweises der Konformität zu der früheren Norm möglich, um als nach dieser Europäischen Norm zugelassen zu gelten. Zusätzliche Prüfungen, die Teil einer Prüffolge sind, dürfen nicht als gesonderte Prüfung durchgeführt werden.

Méthodes et prescriptions d'essai pour les accessoires de câbles de distribution de tension assignée 0,6/1,0 (1,2) kV

La présente Norme Européenne définit les exigences de performance et les méthodes d’essai de type pour les accessoires utilisés sur les câbles de distribution d’énergie de tension assignée 0,6/1,0 (1,2) kV définis par le HD 603 ou d'autres normes de câbles applicables. Les accessoires de câbles couverts par la présente Norme Européenne incluent les jonctions et dérivations, les bouts perdus et les extrémités extérieures pour câbles à isolant synthétique extrudé et les jonctions de transition entre câbles à isolant synthétique extrudé et câbles isolés au papier imprégné. Elle ne concerne pas les jonctions et les dérivations, les bouts perdus et les extrémités extérieures pour câbles isolés au papier imprégné. Il convient que les conditions d'exploitation des accessoires soient compatibles avec celles des câbles sur lesquels ils sont à installer. Les accessoires pour des applications spécifiques telles que les applications sous-marines, à bord des navires, ou bien des environnements présentant des risques d'explosions ou sismiques, ou dans le cas d'exigences de tenue au feu spécifiées ne sont pas inclus. NOTE 1 La présente Norme Européenne ne remet pas en cause les agréments existants des produits obtenus selon des normes et spécifications nationales et/ou la démonstration d’un comportement satisfaisant en service. Toutefois, les produits approuvés selon lesdites normes ou spécifications nationales ne peuvent prétendre directement à l'agrément selon la présente Norme Européenne. NOTE 2 Il peut être possible, selon accord entre le fournisseur et l'acheteur, et/ou l'organisme d'évaluation de la conformité correspondant, de démontrer que la conformité avec la norme antérieure peut être utilisée pour prétendre à la conformité à la présente Norme Européenne, à condition que soit réalisée une évaluation de tout essai de type supplémentaire pouvant être nécessaire. Tout essai supplémentaire de cet ordre faisant partie d'une séquence d'essais ne peut être effectué séparément.

Preskusne metode in zahteve za pribor, ki se uporablja na distribucijskih kablih za naznačene napetosti 0,6/1,0 (1,2) kV

Ta evropski standard podrobno opisuje zahteve glede zmogljivosti in preskusne metode za tipsko preskušanje dodatkov kablov, ki se uporabljajo z distribucijskimi kabli naznačene napetosti 0,6/1,0 (1,2) kV, kot je opredeljeno v standardu HD 603 ali drugih ustreznih standardih za kable.
Med dodatke kablov, ki jih zajema ta evropski standard, spadajo spojke, slepi končniki in zunanji priključki za kable, izolirane z ekstrudiranim trdnim dielektrikom in prehodne spojke med kabli, izoliranimi z ekstrudiranim trdnim dielektrikom in kabli, izoliranimi z impregniranim papirjem. Spojke, slepi končniki in zunanji priključki za kable, izolirane z impregniranim papirjem, niso vključeni.
Pogoji uporabe dodatkov morajo biti v skladu s pogoji uporabe kablov, na katere bodo nameščeni.
Dodatki, namenjeni posebni uporabi, na primer pod vodo, na ladji ali v eksplozivnih ali potresnih okoljih, ali uporabi, pri kateri so potrebne določene posebne lastnosti ob požaru, niso vključeni. OPOMBA 1 Ta evropski standard ne izniči obstoječih odobritev izdelkov, prejetih na podalgi nacionalnih standardov in specifikacij in/ali prikazu zadovoljivega delovanja. Vendar izdelki, odobreni na podlagi omenjenih nacionalnih standardov ali specifikacij, se ne morejo neposredno sklicevati na odobritev tega evropskega standarda.
OPOMBA 2 Odvisno od dogovora med dobaviteljem in kupcem in/ali ustreznim telesom za ocenjevanje skladnosti, je mogoče prikazati, da se lahko skladnost s prejšnjimi standardi uporabi za sklicevanje na skladnost s tem evropskim standardom, če se predhodno oceni, ali je potrebno izvesti dodatne tipske preskuse. Dodatnih preskusov, ki so del zaporedja preskusov, ni mogoče izvesti posebej.

General Information

Status
Published
Publication Date
12-Feb-2015
Technical Committee
Current Stage
6060 - Document made available
Due Date
13-Feb-2015
Completion Date
13-Feb-2015

RELATIONS

Buy Standard

Standard
EN 50393:2015 - BARVEV na PDF-strani 25
English language
37 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 50393:2015
01-september-2015
1DGRPHãþD
SIST EN 50393:2006

3UHVNXVQHPHWRGHLQ]DKWHYH]DSULERUNLVHXSRUDEOMDQDGLVWULEXFLMVNLKNDEOLK]D

QD]QDþHQHQDSHWRVWL  N9

Test methods and requirements for accessories for use on distribution cables of rated

voltage 0,6/1,0 (1,2) kV

Prüfverfahren und Prüfanforderungen für die Garnituren von Verteilerkabeln mit einer

Nennspannung von 0,6/1,0 (1,2) kV

Méthodes et prescriptions d'essai pour les accessoires de câbles de distribution de

tension assignée 0,6/1,0 (1,2) kV
Ta slovenski standard je istoveten z: EN 50393:2015
ICS:
29.120.20 Spojni elementi Connecting devices
SIST EN 50393:2015 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 50393:2015
---------------------- Page: 2 ----------------------
SIST EN 50393:2015
EUROPEAN STANDARD EN 50393
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2015
ICS 29.120.20 Supersedes EN 50393:2006
English Version
Test methods and requirements for accessories for use on
distribution cables of rated voltage 0,6/1,0 (1,2) kV

Méthodes et prescriptions d'essai pour les accessoires de Prüfverfahren und Prüfanforderungen für die Garnituren von

câbles de distribution de tension assignée 0,6/1,0 (1,2) kV Verteilerkabeln mit einer Nennspannung von 0,6/1,0 (1,2)

This European Standard was approved by CENELEC on 2014-12-08. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

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, 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: Avenue Marnix 17, B-1000 Brussels

© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50393:2015 E
---------------------- Page: 3 ----------------------
SIST EN 50393:2015
EN 50393:2015 – 2 –
Contents

Foreword...................................................................................................................................................4

1 Scope ................................................................................................................................................5

2 Normative references ........................................................................................................................5

3 Terms and definitions ........................................................................................................................7

4 Components ......................................................................................................................................8

4.1 Connectors .............................................................................................................. 8

4.2 Materials ................................................................................................................. 9

5 Electrical characteristics ................................................................................................... 9

5.1 Rated voltage .......................................................................................................... 9

5.2 Current rating .......................................................................................................... 9

6 Range of compliance ........................................................................................................ 9

6.1 General ................................................................................................................... 9

6.2 Cables ..................................................................................................................... 9

6.3 Connectors for joints ............................................................................................. 10

6.4 Water immersion depth.......................................................................................... 11

6.5 Transition joints ..................................................................................................... 11

7 Type tests ...................................................................................................................... 11

7.1 General ................................................................................................................. 11

7.2 Test samples ......................................................................................................... 12

7.3 Sequence of tests ................................................................................................. 12

8 Test methods ................................................................................................................. 15

8.1 General ................................................................................................................. 15

8.2 Impulse voltage withstand test at ambient temperature.......................................... 16

8.3 AC voltage withstand test ...................................................................................... 16

8.4 Insulation resistance test ....................................................................................... 17

8.5 Impact test at ambient temperature ....................................................................... 17

8.6 Heating cycle test .................................................................................................. 18

8.7 Immersion test – test installation ........................................................................... 19

8.8 Examination .......................................................................................................... 19

8.9 Metallic screen short-circuit current withstand test ................................................ 20

Annex A (informative) Determination of cable conductor temperature ................................... 29

Annex B (informative) Identification of test cable .................................................................. 34

Annex C (informative) Identification of accessory test samples ............................................. 35

Annex D (informative) Identification of connector .................................................................. 36

Bibliography .......................................................................................................................... 37

Figures

Figure 1 – Example of envelope diameter ............................................................................................. 11

Figure 2 – Typical arrangement for the impact test for joints at ambient temperature.......................... 21

Figure 3 – Typical arrangement for the heating cycle for joints in air ................................................... 22

Figure 4 – Typical arrangement for the heating cycle test for joints in water ........................................ 22

Figure 5 – Typical arrangement for the heating cycle test for outdoor terminations in water ............... 23

Figure 6 – Method of connection of three-phase cables for the heating cycle test on a straight

joint ................................................................................................................................................. 24

---------------------- Page: 4 ----------------------
SIST EN 50393:2015
– 3 – EN 50393:2015

Figure 7 – Method of connection of three-phase cables for the heating cycle test on a branch joint

where the main cable conductor cross-section is greater than 50 mm² and the branch cable

conductor cross-section is less than or equal to 50 mm² ............................................................... 25

Figure 8 – Method of connection of three-phase main and branch cables of equal conductor

cross-section for the heating cycle test on a branch joint .............................................................. 26

Figure 9 – Method of connection of three-phase main and branch cables of unequal conductor

cross-section for the heating cycle test on a branch joint .............................................................. 27

Figure 10 – Typical heating cycle .......................................................................................................... 28

Figure 11 – Arrangement for the screen short-circuit test ..................................................................... 28

Figure A.1 – Arrangement for the cable calibration test ........................................................................ 30

Figure A.2 – Variation of θ with θ for various heating currents ........................................................... 33

c st
Tables

Table 1 – Summary of compliance with different cable insulations....................................................... 10

Table 2 – Compliance extension for conductor connectors in joints ..................................................... 10

Table 3 – Test sequence for joints for solid extruded dielectric insulated cables and for transition

joints between solid extruded dielectric insulated cables and impregnated paper insulated

cables ............................................................................................................................................. 12

Table 4 – Test sequence for stop ends on solid extruded dielectric insulated cables .......................... 13

Table 5 – Test sequence for outdoor terminations on solid extruded dielectric insulated cables ......... 13

Table 6 – Number of test samples and conductor cross-section: straight joints ................................... 14

Table 7 – Number of test samples and conductor cross-section: branch joints .................................... 14

Table 8 – Number of test samples and conductor cross-section: stop ends ........................................ 15

Table 9 – Number of test samples and conductor cross-section: outdoor terminations ....................... 15

---------------------- Page: 5 ----------------------
SIST EN 50393:2015
EN 50393:2015 – 4 –
Foreword
This document (EN 50393:2015) has been prepared by CLC/TC 20 “Electric cables”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2015-12-08
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2017-12-08
conflicting with this document have to
be withdrawn
This document supersedes EN 50393:2006.

EN 50393:2015 includes the following significant technical changes with respect to EN 50393:2006:

– in Clause 1 'Scope', the revised statement referring to 'existing approvals' has been inserted;

– in Clause 3 'Definitions', definitions of stop end types have been revised to align with those of

joints, and definitions of 'rigid' and 'non-rigid' joints have been removed;

– in Clause 6 'Range of compliance', the numbers of joint and termination test samples have been

increased (see also Table 6), compliance restriction and extension with regard to different cable

designs have been clarified, and compliance restrictions and extensions relating to conductor

connectors have been inserted and shown in a new Table 2;

– in 7.3, Table 3, joints of Type II are subject to a new test involving 9 heating cycles in water

without oversheath damage (see also 8.6.2);

– in 7.3, Tables 3, 4 and 5, the footnotes referring to examination of tested accessories have been

removed;

– in Clause 8 'Test methods', the AC voltage withstand test procedure has been simplified and

clarified, references to 'rigid' and 'non-rigid' joints have been removed, reference to the 9 cycle

test for Type II joints (Table 3) has been inserted, and requirements relating to examination of

tested joints have been simplified and references to specific technologies or materials have been

removed;

– Annexes B, C and D have been added to assist in full and accurate identification of test cable,

accessories and connectors for inclusion in test reports.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.
---------------------- Page: 6 ----------------------
SIST EN 50393:2015
– 5 – EN 50393:2015
1 Scope

This European Standard details the performance requirements and the test methods for type testing of

cable accessories for use with power distribution cables of rated voltage 0,6/1,0 (1,2) kV as defined in

HD 603 or other relevant cable standards.

Cable accessories covered by this European Standard include joints, stop ends and outdoor

terminations for extruded solid dielectric insulated cables and transition joints between extruded solid

dielectric insulated and impregnated paper insulated cables. Joints, stop ends and outdoor

terminations for impregnated paper insulated cables are not included.

The service operating conditions of accessories should be compatible with the service operating

conditions of cables on which they are to be installed.

Accessories for special applications such as submarine, shipboard, explosive or seismic

environments, or where specified fire performance characteristics are required, 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 testing that is part of a sequence of testing cannot be done separately.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

EN 61180-1:1994, High-voltage test techniques for low-voltage equipment – Part 1: Definitions, test

and procedure requirements (IEC 61180-1:1992)

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

(U = 42 kV) – Part 1: Test methods and requirements (IEC 61238-1)
HD 603, Distribution cables of rated voltage 0,6/1 kV

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

3 Terms and definitions

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

apply.
3.1
joint

accessory suitable for use in air or underground which makes a connection between two or more

insulated power cables to form a continuous circuit
---------------------- Page: 7 ----------------------
SIST EN 50393:2015
EN 50393:2015 – 6 –
3.2
type I joint

joint where impact withstand, impulse voltage withstand and metallic screen short-circuit current

withstand tests are not required
3.3
type II joint

joint tested for impact withstand but not for impulse voltage withstand or metallic screen short-circuit

current withstand
3.4
type III joint

joint tested for impulse voltage withstand and metallic screen short-circuit current withstand but not for

impact withstand
3.5
transition joint

accessory making a connection between cables having extruded solid dielectric insulation and

impregnated paper insulation
3.6
stop end
accessory providing a means of insulating the end of an energised cable
3.7
type I stop end

stop end where impact withstand and impulse voltage withstand tests are not required

3.8
type II stop end
stop end tested for impact withstand but not for impulse voltage withstand
3.9
type III stop end
stop end tested for impulse voltage withstand but not for impact withstand
3.10
cable crutch

position at which the laid up cores of a multicore cable separate into individual cores

3.11
outdoor termination

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

3.12
type I termination
termination where impulse voltage withstand is not required
3.13
type II termination
termination tested for impulse voltage withstand
3.14
connector
device to connect cable conductors together
---------------------- Page: 8 ----------------------
SIST EN 50393:2015
– 7 – EN 50393:2015
3.15
compression (crimp) connector

connector in which electrical connection is made by deformation or reshaping of the barrel around the

cable conductor
3.16
mechanical connector

connector in which electrical connection is made by pressure applied using screws or bolts

3.17
multi-polar connector

connector with the facility to connect conductors of two or more phases within one body and having

electrical insulation between phases
3.18
IPC – Insulation Piercing Connector

connector in which electrical contact with the conductor is made by metallic protrusions which pierce

the insulation of the cable core
[SOURCE: IEV 461-11-08]
3.19
product family

group of products to be considered to have the same design criteria, the same insulation material

characteristics, the same installation technology and the same connector technology

3.20
lug
metallic device to connect a cable conductor to other electrical equipment
[SOURCE: IEV 461-17-01]
4 Components
4.1 Connectors

Conductor connectors used with joints and terminations shall comply with EN 61238-1, where

applicable, or with another relevant performance standard. Connectors are considered integral

components of accessories and are subject to compliance extensions and limitations detailed in 6.3.

Connectors for circumferential conductors comprising metal wires that are designed to carry neutral or

induced current shall meet the electrical requirements of EN 61238-1, where applicable, or those of

another relevant performance standard.
4.2 Materials

Component material characterization, either by ‘fingerprinting’ or by type testing, is not a prerequisite

for compliance with this performance standard.

If material characterization by type testing is required for components included in the test sample kits,

EN 60455-3-8 should be used for resins, and the relevant parts of EN 60684 and EN 62677 for

respectively heat-shrink tubing or moulded components if applicable. For “fingerprinting” the

appropriate part of HD 631 should be used.
---------------------- Page: 9 ----------------------
SIST EN 50393:2015
EN 50393:2015 – 8 –
5 Electrical characteristics
5.1 Rated voltage
The rated voltage of the joints, stop ends and outdoor terminations shall be
U /UU( ) = 0,6 / 1,0 (1, 2) kV
0 m
Where

U is the rated power frequency voltage between phase conductor and earth or metallic screen for

which the cable accessory is designed;

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

is designed;

U is the maximum value of the highest system voltage between phase conductors for which the

cable accessory may be used.
5.2 Current rating

The continuous current rating of a joint or termination shall be in accordance with the appropriate

cable(s) specified in HD 603 or other relevant cable standard.
6 Range of compliance
6.1 General

Compliance will be gained for a product family of the same design and materials by successfully

completing the appropriate test sequence in Tables 3, 4 or 5 on the smallest and the largest accessory

in the family. In the case of joints and outdoor terminations, the smallest and largest accessory shall

each be tested with the smallest and largest specified cable conductor cross-sections (total 4

samples). Stop-ends shall be tested with the smallest and largest conductor cross-sections (2

samples).

The range of compliance will include these accessories and the intermediate sizes within the family.

The number of test samples is shown in Tables 6 to 9. Successful testing with only one cable

conductor cross-section shall give compliance for that cross-section only.
6.2 Cables

6.2.1 Compliance is restricted to the use of the accessories on the same cable type (construction

and materials) as used in the tests, subject to the permitted extensions given in 6.2.2 to 6.2.5.

6.2.2 Compliance shall extend to the use of the accessories with cables having different conductor

material or construction provided that the connectors used in the tests are compliant with 4.1.

6.2.3 Compliance gained for accessories tested on cable with shaped conductors shall extend to the

use of the same accessories on cables with circular conductors, subject to the restrictions of 4.1 and

6.3. The converse shall not apply.

6.2.4 Compliance shall extend to use of the accessories with cables having conductor insulation

different from that of the test cables in accordance with Table 1.
---------------------- Page: 10 ----------------------
SIST EN 50393:2015
– 9 – EN 50393:2015
Table 1 – Summary of compliance with different cable insulations
Cable insulation Range of compliance
XLPE XLPE, EPR, PVC
EPR EPR, PVC
PVC PVC
Paper Paper

IPC type connectors shall have been tested on all of the conductor insulation types for which range

extension is required.

6.2.5 Compliance gained for accessories tested on cable without longitudinal water-blocking shall

extend to their use on water-blocked cable that is otherwise of the same design and materials. The

converse shall not apply.

6.2.6 Compliance gained for accessories with a connector tested on cable with longitudinal water-

blocked conductors shall extend to their use on cable with non-water-blocked conductor. The

converse shall not apply.

6.2.7 Compliance gained for an accessory shall be extended to the use of the same accessory on

cables of the same design and materials but with fewer cores.
6.3 Connectors for joints

Compliance gained for joints shall be restricted to the use of the same conductor connectors as those

used in the tests, together with other connectors meeting the requirement of 4.1 and falling within the

extension limitations detailed in Table 2. The extensions permitted in Table 2 are based on

geometrical considerations only and do not imply any similarity or difference in connector

performance.

Table 2 – Compliance extension for conductor connectors in joints (based on geometrical

considerations)
Connector type used in tests Compliance extension to Compliance extension to
connectors of the same type connectors of other types
Cylindrical shape straight
connector No extension
(compression or mechanical)
Cylindrical shape straight
Non-cylindrical shape straight
connectors with equal or
Connectors with equal or
connector
smaller length and envelope
smaller length and envelope
(compression or mechanical)
diameter
diameter
Branch connector No extension
Multi-polar straight connector No extension
Multi-polar branch connector No extension

‘envelope diameter’ is the circle diameter, with its plane perpendicular to the main cable conductor, that includes all

metallic parts of the connector, including any projecting bolts.
---------------------- Page: 11 ----------------------
SIST EN 50393:2015
EN 50393:2015 – 10 –
Figure 1 – Example of envelope diameter
6.4 Water immersion depth

The standard water immersion depth for tests on joints and stop-ends is 1 m (gauge pressure 10 kPa

(0,1 bar)). For special applications and buried environments subject to a high water table or prone to

flooding, this head of water may be considered insufficient to confirm the satisfactory performance of

seals preventing the entry of water. In such cases, the test sequence of Tables 3 and 4 may be

performed with an increased water head of 10 m (gauge pressure 100 kPa (1,0 bar)). Testing at a

single water head will achieve compliance for that water head only. Testing at both 1 m and 10 m

water heads will achieve compliance for those water heads and all intermediate values.

6.5 Transition joints

Compliance gained for transition joints shall extend to joints of the same design with an alternative

type of solid dielectric cable provided that

– the paper insulated cable is of the same design, construction and materials as that used in the

tests, and

– prior compliance has been gained for the use of the alternative solid dielectric cable in straight or

branch joints as appropriate.
7 Type tests
7.1 General

Written reports on type tests proving compliance with this European Standard shall be made available

by the supplier. The principal details of the test arrangements shall be given in the test report,

including details of cable construction (refer to Annex B), accessory test samples (refer to Annex C)

and conductor connectors (refer to Annex D). Information in the report should be supported by

photographs where relevant.

The test reports shall be signed by a representative of the organization carrying out the tests. This

may be the manufacturer, supplier or a recognized certification body.

Should a cable fail beyond any part of an accessory, the test shall be declared void without

discrediting the accessory. Tests may be repeated using a new accessory (reverting to the beginning

of the test sequence) or alternatively by repair of the cable (continuing testing from the point of

suspension).
---------------------- Page: 12 ----------------------
SIST EN 50393:2015
– 11 – EN 50393:2015
7.2 Test samples

The number of samples required for each test sequence shall be in accordance with 6.1 and Tables 6

to 9.

Cables used for testing shall comply with HD 603 or other relevant cable standards.

Accessories shall be assembled in the manner specified in the supplier's installation instructions, using

the components supplied in the kit. A joint designed for crossed cores shall be so assembled. All

assembly instructions shall be included with the test report.

Neither the cable nor the accessories shall be subjected to any form of conditioning not specified in

the installation instructions.

Relevant details regarding the test installation shall be recorded in the test report for future reference

and to ensure repeatability of the test regime.
7.3 Sequence of tests

The test sequence shall be in the order given in Table 3 to Table 5, as appropriate for the accessory

being tested.
---------------------- Page: 13 ----------------------
SIST EN 50393:2015
EN 50393:2015 – 12 –

Table 3 – Test sequence for joints for solid extruded dielectric insulated cables

and for transition joints between solid extruded dielectric insulated cables
and impregnated paper insulated cables
Test Subcla Samples Requirements
use Type of joints
I II III
A1/B1 A1/B1 A1/B1 A2/B2
Impulse voltage withstand at 8.2 - - x - No failure
ambient temperature
AC voltage withstand (in air) 8.3 x x x - No failure
Insulation resistance (in air) 8.4 x x x - Insulation resistance ≥ 50 MΩ
Impact at ambient 8.5 - x - - -
temperature
Insulation resistance 8.4 - x - - Insulation resistance ≥ 50 MΩ
(immersed)
Heating cycle in air 8.6 x x x - 63 cycles
Heating cycle in water 8.6 - x - - 9 cycles
Insulation resistance 8.4 - x - - Insulation resistance ≥ 50 MΩ
(immersed)
Heating cycle in water 8.6 x x x - 63 cycles
AC voltage withstand 8.3 x x x - No failure
(immersed)
Insulation resistance 8.4 x x x - Insulation resistance ≥ 50 MΩ
(immersed)
Examination 8.8 x x x - To be recorded
Screen short-circuit 8.9 - - - x The fuse shall operate before
an open circuit develops
between the test pin and the
screen.

For the definitions of Types I, II and III, see Clause 3. For the explanation of A1/B1 and A2/B2, see Tables 6 and 7.

These tests are applicable only to joints made on non-water-blocked cables with overall metallic screen or armour.

This test is applicable only to joints incorporating an overall metallic screen and is subject to agreement.

---------------------- Page: 14 ----------------------
SIST EN 50393:2015
– 13 – EN 50393:2015

Table 4 – Test sequence for stop ends on solid extruded dielectric insulated cables

Test Subcla Samples Requirements
use Type of stop end
I II III
C1 C1 C1
Impulse voltage withstand at 8.2 - - x No failure
ambient temperatur
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.