Compression and mechanical connectors for power cables - Part 1-2: Test methods and requirements for insulation piercing connectors for power cables for rated voltages up to 1 kV (Um = 1,2 kV) tested on insulated conductors (IEC 61238-1-2:2018)

This part of EN 61238 applies to insulation piercing connectors for power cables for rated voltages up to 1 kV (Um = 1,2 kV), for example according to HD 603 or other buried cables and cables installed in buildings, having
a) conductors complying with EN 60228 having nominal cross-sectional areas between 2,5 mm2 and 300 mm2 for copper and between 16 mm2 and 500 mm2 for aluminium,
b) a maximum continuous cable temperature not exceeding the insulation material properties.
This document is not applicable to connectors for overhead line conductors nor to connectors with a sliding contact.  
The object of this document is to define the type test methods and requirements, which apply to insulation piercing connectors for power cables with copper or aluminium conductors. The reference method is to perform the tests on unused insulated conductors.

Pressverbinder und Schraubverbinder für Starkstromkabel – Teil 1-2: Prüfverfahren für und Anforderungen an isolationsdurchdringende Verbinder für Starkstromkabel für Nennspannungen bis zu 1 kV (Um = 1,2 kV), geprüft an isolierten Leitern (IEC 61238-1-2:2018)

Raccords sertis et à serrage mécanique pour câbles d'énergie - Partie 1-2: Méthodes et exigences d'essai relatives aux raccords à perforation d'isolant pour câbles d'énergie de tensions assignées inférieures ou égales à 1kV (Um = 1,2 kV) soumis à essai sur des condcteurs isolés (IEC 61238-1-2:2018)

L’IEC 61238-1-2:2018 est applicable aux raccords à perforation d’isolant pour câbles d'énergie de tensions assignées inférieures ou égales à 1 kV (Um = 1,2 kV), par exemple pour les câbles définis dans l’IEC 60502-1 ou d’autres câbles enterrés et ceux installés à l'intérieur des bâtiments, ayant
a) des âmes conformes à l’IEC 60228, de section nominale comprise entre 2,5 mm2 et 300 mm2 pour le cuivre et entre 16 mm2 et 500 mm2 pour l’aluminium,
b) une température maximale de fonctionnement en service permanent ne dépassant pas les propriétés du matériau isolant.
Le présent document n'est pas applicable aux raccords pour conducteurs de ligne aérienne ni aux raccords équipés d’un contact glissant.
L'objet du présent document est de définir les méthodes d'essais de type et les exigences qui s’appliquent aux raccords à perforation d’isolant utilisables sur les câbles d'énergie à conducteurs en cuivre ou en aluminium. La méthode de référence consiste à réaliser les essais sur des conducteurs isolés neufs.
Cette première édition, conjointement avec l'IEC 61238-1-1 et l'IEC 61238-1-3, annule et remplace l'IEC 61238-1:2003.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC 61238-1:2003:
a) Le domaine d’application a été élargi pour couvrir les raccords de connexion pour âmes jusqu’à 2,5 mm2 (précédemment 10 mm2); il a été limité à 300 mm2 pour les âmes en cuivre et à 500 mm2 pour les âmes en aluminium car les expériences et applications d’essai des raccords à perforation d’isolant sont rares pour les âmes de fortes sections.
b) Une nouvelle classe mécanique a été introduite pour répondre à la demande concernant les raccords qui ne sont soumis à aucune force mécanique.
c) La méthode de réalisation de l’essai électrique a été mise à jour afin de prendre en compte la température des conducteurs de référence isolés.
d) Pour l’essai de court-circuit, la méthode de calcul et les exigences ont été mises à jour.
e) Pour l’essai mécanique, les méthodes et exigences ont été mises à jour.
f) Des propositions d’essai différentes pour les essais sur les raccords multipolaires ont été introduites.
g) Une proposition d’essai applicable au préconditionnement, utilisant une connexion en charge pour les raccords à perforation d’isolant, a été introduite.

Stisljivi in vijačni konektorji za električne kable - 1-2. del: Preskusne metode in zahteve za prebodne konektorje za električne kable za naznačene napetosti do 1 kV (Um = 1,2 kV), preskušene na izoliranih vodnikih (IEC 61238-1-2:2018)

Ta del standarda EN 61238 se uporablja za prebodne konektorje za električne kable za naznačene napetosti do 1 kV (Um = 1,2 kV), na primer za kable v skladu s standardom HD 603 ali druge v zemljo položene kable in kable, vgrajene v stavbah, ki imajo:
a) vodnike, ki so skladni s standardom EN 60228 ter imajo nominalni premer med 2,5 mm2 in 300 mm2, če so bakreni, ter med 16 mm2 in 500 mm2, če so aluminijasti;
b) največjo enakomerno temperaturo kabla, ki ne presega lastnosti izolacijskega materiala.
Ta dokument se ne uporablja za konektorje vodnikov nadzemnih vodov ali za konektorje z drsnimi kontakti.  
Namen tega dokumenta je opredeliti metode in zahteve tipskih preskusov, ki se uporabljajo za prebodne konektorje za električne kable z bakrenimi ali aluminijastimi vodniki. Referenčna metoda je namenjena za izvajanje preskusov na neuporabljenih izoliranih vodnikih.

General Information

Status
Published
Public Enquiry End Date
31-Jan-2019
Publication Date
03-Oct-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Oct-2019
Due Date
06-Dec-2019
Completion Date
04-Oct-2019

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SLOVENSKI STANDARD
SIST EN IEC 61238-1-2:2019
01-december-2019
Nadomešča:
SIST EN 61238-1:2004

Stisljivi in vijačni konektorji za električne kable - 1-2. del: Preskusne metode in

zahteve za prebodne konektorje za električne kable za naznačene napetosti do 1
kV (Um = 1,2 kV), preskušene na izoliranih vodnikih (IEC 61238-1-2:2018)

Compression and mechanical connectors for power cables - Part 1-2: Test methods and

requirements for insulation piercing connectors for power cables for rated voltages up to

1 kV (Um = 1,2 kV) tested on insulated conductors (IEC 61238-1-2:2018)

Pressverbinder und Schraubverbinder für Starkstromkabel – Teil 1-2: Prüfverfahren für

und Anforderungen an isolationsdurchdringende Verbinder für Starkstromkabel für

Nennspannungen bis zu 1 kV (Um = 1,2 kV), geprüft an isolierten Leitern (IEC 61238-1-

2:2018)

Raccords sertis et à serrage mécanique pour câbles d'énergie - Partie 1-2: Méthodes et

exigences d'essai relatives aux raccords à perforation d'isolant pour câbles d'énergie de

tensions assignées inférieures ou égales à 1kV (Um = 1,2 kV) soumis à essai sur des

condcteurs isolés (IEC 61238-1-2:2018)
Ta slovenski standard je istoveten z: EN IEC 61238-1-2:2019
ICS:
29.060.20 Kabli Cables
29.120.20 Spojni elementi Connecting devices
SIST EN IEC 61238-1-2:2019 en

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

---------------------- Page: 1 ----------------------
SIST EN IEC 61238-1-2:2019
---------------------- Page: 2 ----------------------
SIST EN IEC 61238-1-2:2019
EUROPEAN STANDARD EN IEC 61238-1-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS 29.060.20 Supersedes EN 61238-1:2003 (partially) and all of its
amendments and corrigenda (if any)
English Version
Compression and mechanical connectors for power cables -
Part 1-2: Test methods and requirements for insulation piercing
connectors for power cables for rated voltages up to 1 kV (U =
1,2 kV) tested on insulated conductors
(IEC 61238-1-2:2018)

Raccords sertis et à serrage mécanique pour câbles Pressverbinder und Schraubverbinder für Starkstromkabel -

d'énergie - Partie 1-2: Méthodes et exigences d'essai Teil 1-2: Prüfverfahren für und Anforderungen an

relatives aux raccords à perforation d'isolant pour câbles isolationsdurchdringende Verbinder für Starkstromkabel für

d'énergie de tensions assignées inférieures ou égales à Nennspannungen bis zu 1 kV (U = 1,2 kV), geprüft an

1kV (U = 1,2 kV) soumis à essai sur des condcteurs isolés isolierten Leitern
(IEC 61238-1-2:2018) (IEC 61238-1-2:2018)

This European Standard was approved by CENELEC on 2019-07-19. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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. EN IEC 61238-1-2:2019 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61238-1-2:2019
EN IEC 61238-1-2:2019 (E)
European foreword

This document (EN IEC 61238-1-2:2019) consists of the text of IEC 61238-1-2:2018 prepared by

IEC/TC 20 "Electric cables".
The following dates are fixed:
• latest date by which this document has to be (dop) 2020-07-19
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) 2022-07-19
conflicting with this document have to be
withdrawn

This document partially supersedes EN 61238-1:2003 and all of its amendments and corrigenda (if

any).

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.
Endorsement notice

The text of the International Standard IEC 61238-1-2:2018 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 61238-1 NOTE Harmonized as EN 61238-1.
IEC 61238-1-1 NOTE Harmonized as EN IEC 61238-1-1.
IEC 61238-1-3 NOTE Harmonized as EN IEC 61238-1-3.
IEC 62475:2010 NOTE Harmonized as EN 62475:2010 (not modified).
---------------------- Page: 4 ----------------------
SIST EN IEC 61238-1-2:2019
EN IEC 61238-1-2:2019 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-461 - International Electrotechnical Vocabulary - - -
Part 461: Electric cables
IEC 60228 - Conductors of insulated cables EN 60228 -
IEC 60493-1 - Guide for the statistical analysis of ageing - -
test data - Part 1: Methods based on mean
values of normally distributed test results
IEC 60949 1988 Calculation of thermally permissible short- - -
circuit currents, taking into account non-
adiabatic heating effects
+ A1 2008 - -
---------------------- Page: 5 ----------------------
SIST EN IEC 61238-1-2:2019
---------------------- Page: 6 ----------------------
SIST EN IEC 61238-1-2:2019
IEC 61238-1-2
Edition 1.0 2018-05
INTERNATIONAL
STANDARD
Compression and mechanical connectors for power cables –
Part 1-2: Test methods and requirements for insulation piercing connectors for
power cables for rated voltages up to 1 kV (U = 1,2 kV) tested on insulated
conductors
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20 ISBN 978-2-8322-5646-6

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN IEC 61238-1-2:2019
– 2 – IEC 61238-1-2:2018 © IEC 2018
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 8

4 Symbols ........................................................................................................................ 10

5 General ......................................................................................................................... 11

5.1 Definition of classes .............................................................................................. 11

5.2 Cable .................................................................................................................... 11

5.3 Connectors and installation procedure .................................................................. 12

5.4 Range of approval................................................................................................. 12

6 Electrical tests ............................................................................................................... 13

6.1 Installation ............................................................................................................ 13

6.1.1 General ......................................................................................................... 13

6.1.2 Through connectors ....................................................................................... 13

6.1.3 Branch connectors ......................................................................................... 14

6.2 Measurements ...................................................................................................... 14

6.2.1 General ......................................................................................................... 14

6.2.2 Electrical resistance measurements ............................................................... 14

6.2.3 Temperature measurements .......................................................................... 15

6.3 Heat cycling test ................................................................................................... 16

6.3.1 General ......................................................................................................... 16

6.3.2 First heat cycle .............................................................................................. 16

6.3.3 Second heat cycle ......................................................................................... 16

6.3.4 Subsequent heat cycles ................................................................................. 18

6.4 Short-circuit test for connectors according to Class A ........................................... 18

6.5 Assessment of results ........................................................................................... 19

6.6 Requirements ....................................................................................................... 19

6.7 Examples of electrical test loop configurations and associated parameters ........... 20

7 Mechanical test ............................................................................................................. 24

7.1 General ................................................................................................................. 24

7.2 Method ................................................................................................................. 24

7.3 Requirements ....................................................................................................... 24

8 Test reports ................................................................................................................... 24

8.1 General ................................................................................................................. 24

8.2 Electrical tests ...................................................................................................... 24

8.3 Mechanical test ..................................................................................................... 25

Annex A (normative) Equalizers and their preparation .......................................................... 26

A.1 Requirements for equalizers ................................................................................. 26

A.2 Recommendations for welding equalizers ............................................................. 26

Annex B (normative) Measurements .................................................................................... 28

B.1 Potential measuring positions for typical connectors ............................................. 28

B.2 Temperature measurement ................................................................................... 28

B.3 Equivalent conductor resistance ........................................................................... 28

Annex C (informative) Recommendations to decrease uncertainties of measurement .......... 29

C.1 Handling the test loop ........................................................................................... 29

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SIST EN IEC 61238-1-2:2019
IEC 61238-1-2:2018 © IEC 2018 – 3 –

C.2 Measurements, instruments and readings ............................................................. 29

Annex D (normative) Calculation of adiabatic short-circuit current ........................................ 30

Annex E (informative) Determination of the value of the short-circuit current ........................ 31

Annex F (normative) Calculation method .............................................................................. 32

F.1 General ................................................................................................................. 32

F.2 Measurements made ............................................................................................. 32

F.3 Connector resistance factor k ................................................................................ 32

F.4 Initial scatter δ ...................................................................................................... 33

F.5 Mean scatter β ...................................................................................................... 33

F.6 Change in resistance factor of each connector ...................................................... 35

F.6.1 General ......................................................................................................... 35

F.6.2 Line of best fit ................................................................................................ 35

F.6.3 Confidence interval δ .................................................................................... 35

F.6.4 Change in resistance factor D ........................................................................ 36

F.7 Resistance factor ratio λ........................................................................................ 36

F.8 Maximum temperatures θ ............................................................................... 36

max

Annex G (informative) Explanation on assessment of results of electrical tests on

connectors ............................................................................................................................ 37

G.1 History .................................................................................................................. 37

G.2 Short examination of the assessment methods of IEC 61238-1 compared

with the Italian standard CEI 20-28 and the British standard BS 4579-3 ................ 37

G.3 The IEC 61238-1 method of assessing test results ................................................ 38

Annex H (informative) Tests on multicore connectors ........................................................... 40

H.1 Principle ............................................................................................................... 40

H.1.1 Electrical tests ............................................................................................... 40

H.1.2 Mechanical tests ............................................................................................ 40

H.2 Test recommendations for electrical tests based on test experience in the

UK and in France .................................................................................................. 40

H.2.1 General ......................................................................................................... 40

H.2.2 Measurement ................................................................................................. 41

H.2.3 Heat cycling test ............................................................................................ 41

H.2.4 Short-circuit test (only for Class A) ................................................................ 41

H.2.5 Results evaluation ......................................................................................... 42

H.3 Test recommendations for electrical tests based on German standard

DIN VDE 0220- 3 .................................................................................................. 43

H.3.1 General ......................................................................................................... 43

H.3.2 Test setup for electrical test ........................................................................... 44

H.3.3 Resistance assessment branches of the test setup ........................................ 45

H.3.4 Temperature measurement in a separate test branch during the first

and second heat-cycle ................................................................................... 45

H.3.5 Interconnection of terminals for heat-cycling .................................................. 47

H.3.6 Short-circuit tests .......................................................................................... 49

H.3.7 Assessment of resistance-values R ............................................................... 51

H.3.8 Optional dielectric strength test after the electrical test .................................. 52

Annex I (informative) Load pick-up tests .............................................................................. 54

Bibliography .......................................................................................................................... 55

Figure 1 – Position of thermocouples .................................................................................... 15

Figure 2 – Example of second heat cycle profile ................................................................... 17

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SIST EN IEC 61238-1-2:2019
– 4 – IEC 61238-1-2:2018 © IEC 2018

Figure 3 – Typical electrical test loop for through connectors installed on insulated

conductors ............................................................................................................................ 21

Figure 4 – Typical electrical test loop for branch connectors installed on insulated

conductors ............................................................................................................................ 22

Figure 5 – Typical cases of resistance measurements .......................................................... 23

Figure A.1 – Preparation of equalizers .................................................................................. 27

Figure E.1 – Determination of equivalent RMS value of current during the short-circuit test .. 31

Figure F.1 – Graphic example of assessment of a Class A individual connector .................... 34

Figure H.1 – Test loops for through connectors ..................................................................... 42

Figure H.2 – Test loops for branch connectors ...................................................................... 43

Figure H.3 – Example of test setup for multicore branch connectors on a four-core

cable consisting of several test branches .............................................................................. 45

Figure H.4 – Example of circuit schematic for heat-cycling of multicore branch

connectors main to branch, e.g. 150/150, 150/120 or 150/95 in the case of four-core

cables ................................................................................................................................... 48

Figure H.5 – Example of circuit schematic for heat-cycling of multicore branch

connectors main to branch, e.g. 150/70 and smaller in the case of four-core cables ............. 49

Figure H.6 – Example of circuit schematic in the case of four-core cable connector

tests for passing short circuits on main through adjacent Phases L2–L3 with opposite

current flow ........................................................................................................................... 50

Figure H.7 – Example of circuit schematic in the case of four-core cable branch connector

tests for short circuit test from main to branch through adjacent Phases L4–L1 with

opposite current flow ............................................................................................................. 51

Table 1 – Minimum period of temperature stability ................................................................ 16

Table 2 – Electrical resistance measurements during the electrical test ................................ 18

Table 3 –Electrical test requirements .................................................................................... 20

Table 4 – Selection of tensile force withstand values for the mechanical test ........................ 24

Table D.1 – Material properties ............................................................................................. 30

Table G.1 – Summary of assessed behaviour of a tested connector ...................................... 39

Table I.1 – Minimum load pick-up.......................................................................................... 54

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SIST EN IEC 61238-1-2:2019
IEC 61238-1-2:2018 © IEC 2018 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMPRESSION AND MECHANICAL
CONNECTORS FOR POWER CABLES –
Part 1-2: Test methods and requirements for insulation piercing
connectors for power cables for rated voltages up to 1 kV
(U = 1,2 kV) tested on insulated conductors
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61238-1-2 has been prepared by IEC technical committee 20:

Electric cables.

This first edition, together with IEC 61238-1-1 and IEC 61238-1-3, cancels and replaces

IEC 61238-1:2003.

This edition includes the following significant technical changes with respect to

IEC 61238-1:2003:

a) The scope has been widened to cover connectors for conductors from 10 mm down to

2 2 2
2,5 mm and has been limited to 300 mm for copper conductors and 500 mm for

aluminium conductors because test experience and applications for IPC are rare for

conductors of larger cross-sectional areas.
---------------------- Page: 11 ----------------------
SIST EN IEC 61238-1-2:2019
– 6 – IEC 61238-1-2:2018 © IEC 2018

b) A new mechanical class has been introduced to satisfy the demand for connectors

subjected to no mechanical force.

c) The electrical test method has been updated in order to take into consideration the

temperature of the insulated reference conductors.

d) For the short-circuit test, the method of calculation and requirements have been updated.

e) For the mechanical test, the methods and requirements have been updated.

f) Different test proposals for multicore connector testing have been introduced.

g) A test proposal for pre-conditioning using live load pickup for insulation piercing

connectors has been introduced.
The text of this International Standard is based on the following documents:
FDIS Report on voting
20/1789/FDIS 20/1804/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 61238 series, published under the general title Compression and

mechanical connectors for power cables, can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
---------------------- Page: 12 ----------------------
SIST EN IEC 61238-1-2:2019
IEC 61238-1-2:2018 © IEC 2018 – 7 –
INTRODUCTION
The IEC 61238 series has been divided into the following parts:

Part 1-1: Test methods and requirements for compression and mechanical connectors for

power cables for rated voltages up to 1 kV (U = 1,2 kV) tested on non-insulated
conductors

Part 1-2: Test methods and requirements for insulation piercing connectors for power

cables for rated voltages up to 1 kV (U = 1,2 kV) tested on insulated conductors

Part 1-3: Test methods and requirements for compression and mechanical connectors for

power cables for rated voltages above 1 kV (U = 1,2 kV) up to 30 kV
(U = 36 kV) tested on non-insulated conductors

This Part 1-2 of IEC 61238-1 deals with type tests for insulation piercing connectors for use

on copper or aluminium conductors of power cables for rated voltages up to
1 kV (U = 1,2 kV).

When a design of connector meets the requirements of this document, then it is expected that

in service:
a) the resistance of the connection will remain stable within specified limits;

b) the temperature of the connector will be of the same order or less than that of the

insulated conductor during current heating;

c) if the intended use demands it, application of short-circuit currents will not affect a) and b);

d) independently from the electrical performance, conforming axial tensile strength will

ensure an acceptable mechanical performance for the conne
...

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