Heat-shrinkable low and medium voltage moulded shapes - Part 3: Specification for individual materials - Sheet 103: Heat-shrinkable, polyolefin, conductive moulded shapes for medium voltage applications

IEC 62677-3-103:2019 is applicable to heat shrinkable low and medium voltage moulded shapes, conductive, in a range of configurations suitable for environmental sealing, mechanical protection, strain relief for power cable terminations, joints and stop ends. These moulded shapes have been found suitable for use for temperatures between -40 ºC and 100 ºC. The moulded shapes can be supplied with a pre-coated adhesive. A guide to adhesive compatibility and temperature performance is given in Annex A. The manufacturers/suppliers can be consulted for options. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application will need to be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. The tests specified are designed to control the quality of the moulded shapes but it is recognized that they are designed to be used in low and medium voltage cable accessories and as such electrical performance will be proven as part of the assembly. Examples of this are described in EN 50393, HD 629 and IEC 60502 (all parts).
Keywords: heat shrinkable, polyolefin, conductive moulded shapes for medium voltage applications

Profilés thermorétractables basse et moyenne tensions - Partie 3: Spécification pour matériaux particuliers - Feuille 103: Profilés thermorétractables conducteurs en polyoléfine pour applications moyenne tension

IEC 62677-3-103:2019 est applicable aux profilés thermorétractables conducteurs basse et moyenne tensions dans une gamme de configurations adaptées aux éléments d’étanchéité contre les intempéries, à la protection mécanique, aux dispositifs compensateurs de traction pour extrémités de câbles de puissance, aux joints et aux extrémités d'arrêt. Ces profilés sont jugés adaptés pour des utilisations dans la plage de températures de -40 °C à 100 °C. Les profilés peuvent être fournis avec un adhésif prérevêtu. L'Annexe A fournit un guide sur la compatibilité des adhésifs et la performance en température. Les fabricants/fournisseurs peuvent être consultés pour les options. Les matériaux conformes à la présente spécification satisfont à des niveaux établis de performance. Cependant, il y a lieu que le choix d’un matériau par un utilisateur pour une application spécifique repose sur les exigences réelles nécessaires pour obtenir une performance adéquate pour l'application concernée, et non sur la présente spécification uniquement. Les essais spécifiés sont conçus pour contrôler la qualité des profilés, mais il est reconnu qu'ils sont conçus pour être utilisés dans des accessoires de câbles basse et moyenne tensions et, à ce titre, la performance électrique est prouvée dans le cadre de l'assemblage. Des exemples sont développés dans l'EN 50393, le HD 629 et l'IEC 60502 (toutes les parties).
Mots-clés: profilés thermorétractables conducteurs en polyoléfine pour applications moyenne tension

General Information

Status
Published
Publication Date
13-May-2019
Current Stage
PPUB - Publication issued
Completion Date
14-May-2019
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IEC 62677-3-103:2019 - Heat-shrinkable low and medium voltage moulded shapes - Part 3: Specification for individual materials - Sheet 103: Heat-shrinkable, polyolefin, conductive moulded shapes for medium voltage applications
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IEC 62677-3-103
Edition 1.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Heat-shrinkable low and medium voltage moulded shapes –
Part 3: Specification for individual materials – Sheet 103: Heat-shrinkable,
polyolefin, conductive moulded shapes for medium voltage applications
Profilés thermorétractables basse et moyenne tensions –
Partie 3: Spécification pour matériaux particuliers – Feuille 103: Profilés
thermorétractables conducteurs en polyoléfine pour applications moyenne
tension
IEC 62677-3-103:2019-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62677-3-103
Edition 1.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Heat-shrinkable low and medium voltage moulded shapes –
Part 3: Specification for individual materials – Sheet 103: Heat-shrinkable,
polyolefin, conductive moulded shapes for medium voltage applications
Profilés thermorétractables basse et moyenne tensions –
Partie 3: Spécification pour matériaux particuliers – Feuille 103: Profilés
thermorétractables conducteurs en polyoléfine pour applications moyenne
tension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.035.20, 29.035.01 ISBN 978-2-8322-6912-1

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62677-3-103:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Designation ..................................................................................................................... 7

5 Conditions of test for dimensions ..................................................................................... 7

6 Requirements .................................................................................................................. 7

7 Moulded shapes material conformance ............................................................................ 7

Annex A (informative) Adhesive compatibility guide ............................................................. 10

Bibliography .......................................................................................................................... 11

Table 1 – Property requirements ............................................................................................. 7

Table 2 – Resistance to selected fluids ................................................................................... 8

Table 3 – Additional property requirements ............................................................................. 9

Table A.1 – Adhesive compatibility guide .............................................................................. 10

---------------------- Page: 4 ----------------------
IEC 62677-3-103:2019 © IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HEAT-SHRINKABLE LOW AND MEDIUM VOLTAGE MOULDED SHAPES –
Part 3: Specification for individual materials –
Sheet 103: Heat-shrinkable, polyolefin, conductive moulded shapes for
medium voltage applications
FOREWORD

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

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

International Standard IEC 62677 has been prepared by committee TC 15: Solid electrical

insulating materials.
The text of this International Standard is based on the following documents:
CDV Report on voting
15/833/CDV 15/861/RVC

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 62677 series, published under the general title Heat shrinkable low

and medium voltage moulded shapes, can be found on the IEC website.
---------------------- Page: 5 ----------------------
– 4 – IEC 62677-3-103:2019 © IEC 2019

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.
---------------------- Page: 6 ----------------------
IEC 62677-3-103:2019 © IEC 2019 – 5 –
INTRODUCTION

This part of IEC 62677 is one of a series that deals with heat shrinkable low and medium voltage

moulded shapes. It consists of three parts:
Part 1: General requirements (IEC 62677-1)
Part 2: Methods of test (IEC 62677-2) 1
Part 3: Specification for individual materials
This standard gives one of the sheets comprising Part 3 as follows:

Sheet 103: Heat shrinkable, polyolefin, conductive moulded shapes for medium voltage

applications
---------------------- Page: 7 ----------------------
– 6 – IEC 62677-3-103:2019 © IEC 2019
HEAT-SHRINKABLE LOW AND MEDIUM VOLTAGE MOULDED SHAPES
Part 3: Specification for individual materials
Sheet 103: Heat-shrinkable, polyolefin, conductive moulded shapes for
medium voltage applications
1 Scope

This part of IEC 62677 is applicable to heat shrinkable low and medium voltage moulded

shapes, conductive, in a range of configurations suitable for environmental sealing, mechanical

protection, strain relief for power cable terminations, joints and stop ends. These moulded

shapes have been found suitable for use for temperatures between −40 ºC and 100 ºC.

The moulded shapes can be supplied with a pre-coated adhesive. A guide to adhesive

compatibility and temperature performance is given in Annex A. The manufacturers/suppliers

can be consulted for options.

Materials which conform to this specification meet established levels of performance. However,

the selection of a material by a user for a specific application will need to be based on the actual

requirements necessary for adequate performance in that application and not based on this

specification alone.

The tests specified are designed to control the quality of the moulded shapes but it is recognized

that they are designed to be used in low and medium voltage cable accessories and as such

electrical performance will be proven as part of the assembly. Examples of this are described

in EN 50393, HD 629 and IEC 60502 (all parts).
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies.

For undated references, the latest edition of the referenced document (including any

amendments) applies.

IEC 60296, Fluids for electrotechnical applications – Unused mineral insulating oils for

transformers and switchgear
IEC 60757, Code for designation of colours

IEC 62677-1, Heat shrinkable low and medium voltage moulded shapes – Part 1: General

requirements

IEC 62677-2:2017, Heat shrinkable low and medium voltage moulded shapes – Part 2: Methods

of test
3 Terms and definitions
No terms and definitions are listed in this document.

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

addresses:
---------------------- Page: 8 ----------------------
IEC 62677-3-103:2019 © IEC 2019 – 7 –
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 Designation
The moulded shapes shall be identified by the following designation:
Description IEC IEC Part IEC sheet Adhesive Colour Table 3
publication number number code
number
↓ ↓ ↓ ↓ ↓ ↓ ↓
Suppliers part number IEC 62677 - 3 - 103 -U - BK X

Any colour abbreviation shall comply with IEC 60757, where applicable. Non-standard colours

shall be written out in full.

The addition of “X” at the end of the designation indicates that the properties contained in Table

3 have been agreed upon between the user and supplier.
See Annex A for adhesive nomenclature.

NOTE This information is for packaging labelling only, in accordance with IEC 62677-1.

5 Conditions of test for dimensions

The moulded shapes shall be shrunk in a forced air circulation oven at 200 °C ± 5 K for (10 ± 1)

min.
6 Requirements

In addition to the general requirements given in IEC 62677-1, the heat-shrinkable moulded

shapes shall comply with the requirements in Table 1 and where applicable with those in Table

7 Moulded shapes material conformance

Conformance with the requirements of this specification shall be based on the results from test

sheets, (2 ± 0,15) mm thick, unless otherwise specified, which shall be prepared from the same

heat-shrinkable material and conditions (including cross-linking) that is used to manufacture

the heat shrinkable moulded shapes.
Table 1 – Property requirements
Property IEC 62677-2:2017 Units Max. Requirements Remarks
clause or or
subclause Min.
Dimensions 6 mm Min. To be agreed between See Clause 5
purchaser and supplier
Min.
Heat shock 7 Heat at 150 °C ±
5 K
Tensile strength 10 MPa Min. 8
Elongation at break 10 % Min. 175
---------------------- Page: 9 ----------------------
– 8 – IEC 62677-3-103:2019 © IEC 2019
Property IEC 62677-2:2017 Units Max. Requirements Remarks
clause or or
subclause Min.
Bending at low 8 - - No cracking shall be
Test at –40 °C
temperature visible
The mandrel shall
be between 20 and
22 times the sample
thickness.
Dimensional stability 9 - - The dimensions shall See Clause 5
remain as agreed
on storage
between purchaser and
supplier
Tensile strength 10 MPa Min. 10 Use a jaw
separation rate of
Elongation at break 10 % Min. 200
100 mm/min.
Secant modulus 11 MPa Max. 250
at 2 % elongation
Volume resistivity at 13 Ω.m Max. Test voltage to be
room temperature less than 5 V.
The requirement is
set so as to define
the material as
conductive. It does
not indicate any
guarantee of
suitable
performance in an
accessory and
further testing by
the supplier will be
needed to prove
this. The value may
change with applied
voltage.
Resistance to Use the fluids and
selected fluids 18 test temperatures
specified in Table 2
Tensile strength 10 MPa Min. 8
Elongation at break 10 % Min. 175
Heat ageing 20
Heat at 150 °C ±
3 K
Tensile strength 10 MPa Min. 8
Elongation at break 10 % Min. 175
Long term ageing 19 The ageing
temperature shall be
Elongation at break 10 % Min. 100
100 °C ± 3 K
Table 2 – Resistance to selected fluids
Test Fluids Type Standard or symbol Immersion temperature
fluid
°C ± 2 K
No.
1 Insulating oil Mineral based IEC 60296 transformer
...

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