IEC 60684-3-248:2007

Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 248: General purpose, heat-shrinkable, dual wall polyolefin sleeving, flame retarded, shrink ratios 2:1, 3:1, 4:1

IEC 60684-3-248:2007 gives the requirements for six types of general purpose, heat shrinkable dual wall polyolefin sleevings, flame retarded with nominal shrink ratios of 2:1, 3:1 or 4:1 and available in low and high temperature adhesive inner walls.

Gaines isolantes souples - Partie 3: Spécifications pour types particuliers de gaines - Feuille 248: Gaines à usage général, thermorétractables, en polyoléfine, à double paroi, retardées à la flamme, avec des rapports de rétreint de 2:1, 3:1 et 4:1

La CEI 60684-3-248:2007 définit les exigences relatives à six types de gaines à usage général, thermorétractables, en polyoléfine, à double paroi, retardées à la flamme avec des rapports de rétreint de 2:1, 3:1 et 4:1 et disponibles en parois internes adhésives à basse et haute températures.

General Information

• Status: Published
• Publication Date: 15-Feb-2007
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: TC 15 - Solid electrical insulating materials
• Drafting Committee: WG 5 - TC 15/WG 5
• Current Stage: PPUB - Publication issued
• Start Date: 15-May-2007
• Completion Date: 16-Feb-2007

Standards Content (Sample)

IEC 60684-3-248
®
Edition 1.0 2007-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Flexible insulating sleeving –
Part 3: Specifications for individual types of sleeving – Sheet 248: General
purpose, heat-shrinkable, dual wall polyolefin sleeving, flame retarded, shrink
ratios 2:1, 3:1, 4:1

Gaines isolantes souples –
Partie 3: Spécifications pour types particuliers de gaines – Feuille 248: Gaines à
usage général, thermorétractables, en polyoléfine, à double paroi, retardées à la
flamme, avec des rapports de rétreint de 2:1, 3:1 et 4:1

IEC 60684-3-248:2007

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2007 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: www.iec.ch

About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]


A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de référence,
texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: [e-mail]
Tél.: [phone]
Fax: [phone]

---------------------- Page: 2 ----------------------
IEC 60684-3-248
®
Edition 1.0 2007-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Flexible insulating sleeving –
Part 3: Specifications for individual types of sleeving – Sheet 248: General
purpose, heat-shrinkable, dual wall polyolefin sleeving, flame retarded, shrink
ratios 2:1, 3:1, 4:1

Gaines isolantes souples –
Partie 3: Spécifications pour types particuliers de gaines – Feuille 248: Gaines à
usage général, thermorétractables, en polyoléfine, à double paroi, retardées à la
flamme, avec des rapports de rétreint de 2:1, 3:1 et 4:1

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
M
CODE PRIX
ICS 29.035.20 ISBN 978-2-88910-249-5
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 60684-3-248 © IEC:2007
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references.6
3 Designation .7
4 Conditions of test.7
5 Requirements .7
6 Sleeving conformance.7
7 Elevated temperature performance test.8

Figure 1 – Test assembly for elevated temperature performance .8

Table 1 – Size of stepped mandrel for elevated temperature performance test.8
Table 2 – Dimensional requirements – Type AL and AH.9
Table 3 – Dimensional requirements – Type BL and BH.9
Table 4 – Dimensional requirements – Type CL and CH .10
Table 5 – Property requirements .11
Table 6 – Requirements for breakdown voltage .12
Table 7 – Resistance to selected fluids.13
Table 8 – Additional property requirements.13

---------------------- Page: 4 ----------------------
60684-3-248 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FLEXIBLE INSULATING SLEEVING –

Part 3: Specifications for individual types of sleeving –
Sheet 248: General purpose, heat-shrinkable, dual wall polyolefin
sleeving, flame retarded, shrink ratios 2:1, 3:1, 4:1


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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 60684-3-248 has been prepared by IEC technical committee 15:
Solid electrical insulating materials.
This bilingual version, published in 2009-06, corresponds to the English version.
The text of this standard is based on the following documents:
FDIS Report on voting
15/359/FDIS 15/372/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
The French version of this standard has not been voted upon.

---------------------- Page: 5 ----------------------
– 4 – 60684-3-248 © IEC:2007
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60684 series, published under the general title Flexible insulating
sleeving, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the

maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

---------------------- Page: 6 ----------------------
60684-3-248 © IEC:2007 – 5 –
INTRODUCTION
This international Standard is one of a series which deals with flexible insulating sleeving for
electrical purposes.
The series consists of three parts:
Part 1: Definitions and general requirements ( IEC 60684-1)
Part 2: Methods of test ( IEC 60684-2 )
Part 3: Specifications for individual types of sleeving ( IEC 60684-3 )
This standard comprises one of the sheets of Part 3 as follows:
Sheet 248: General purpose, heat-shrinkable, dual wall polyolefin sleeving, flame retarded,
shrink ratios 2:1, 3:1, 4:1

---------------------- Page: 7 ----------------------
– 6 – 60684-3-248 © IEC:2007
FLEXIBLE INSULATING SLEEVING –

Part 3: Specifications for individual types of sleeving –
Sheet 248: General purpose, heat-shrinkable, dual wall polyolefin
sleeving, flame retarded, shrink ratios 2:1, 3:1, 4:1



1 Scope
This part of IEC 60684 gives the requirements for six types of general purpose, heat shrinkable
dual wall polyolefin sleevings, flame retarded with nominal shrink ratios of 2:1, 3:1 or 4:1 and
available in low and high temperature adhesive inner walls.
The low temperature adhesive sleeving has been found suitable for temperatures up to 105 °C
and the high temperature adhesive sleeving has been found suitable for temperatures up to
125 °C.
− Type AL:
2:1 shrink ratio, internal diameter up to 51 mm, low temperature adhesive inner wall.
− Type AH:
2:1 shrink ratio, internal diameter up to 51 mm, high temperature adhesive inner wall.
− Type BL:
3:1 shrink ratio, internal diameter up to 40 mm, low temperature adhesive inner wall.
− Type BH:
3:1 shrink ratio, internal diameter up to 40 mm, high temperature adhesive inner wall.
− Type CL:
4:1 shrink ratio, internal diameter up to 52 mm, low temperature adhesive inner wall.
− Type CH:
4:1 shrink ratio, internal diameter up to 52 mm, high temperature adhesive inner wall.
The sleeving consists of an outer layer being of a flexible cross-linked polyolefin. The inner wall
consists of a hot melt adhesive that flows and fuses during the shrinking process to provide a
bond.
These sleevings are normally supplied in colour black.
Sizes or colours other than those listed in this standard may be available as custom items.
These items are considered to comply with this standard if they comply with the property
requirements listed in Tables, 5 and 6 and Table 8 where applicable, with the exception of
dimensions.
Materials which conform to this specification meet established levels of performance. However,
the selection of a material by a user for a specific application should be based on the actual
requirements necessary for adequate performance in that application and not based on this
specification alone.
2 Normative references
The following referenced documents are indispensable for the application 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 60684-1:2003, Flexible insulating sleeving – Part 1: Definitions and general requirements.

---------------------- Page: 8 ----------------------
60684-3-248 © IEC:2007 – 7 –
1)
IEC 60684-2:1997, Flexible insulating sleeving – Part 2: Methods of test
Amendment 1 (2003)
Amendment 2 (2005)
IEC 60757:1983, Codes for designation of colours
ISO 1817:2005, Rubber, vulcanized – Determination of the effect of liquids
3 Designation
This sleeving shall be identified by the following designation:
Description IEC IEC IEC Type Size Colour Table 8
publica- part sheet (expanded/ Code
tion number number recovered
number internal

diameter, in
millimetres)
↓ ↓  ↓  ↓ ↓ ↓ ↓ ↓
Sleeving IEC 60684 –  3  –  248   –  AL – 12,7/6,4 –  BK –   X

NOTE The addition of “X” at the end of the designation indicates that the properties contained in Table 8 have
been agreed upon and are included in the purchase contract.
Any abbreviation of colour shall comply with IEC 60757. Where no abbreviation is given, the
colour shall be written in full.
4 Conditions of test
Unless otherwise specified, the sleeving shall be shrunk in a forced air circulation oven for
(5 ± 1) min at 200 °C ± 5 K prior to testing.
5 Requirements
In addition to the general requirements given in IEC 60684-1, the sleeving shall comply with the
requirements in Tables 2, 3, 4 and 5, 6 and 8 where applicable.
6 Sleeving conformance
Conformance to the requirements of this specification shall normally be based on the results
obtained for black sleeving of the following sizes:
− Type AL and AH: 12,7 mm / 6,4 mm;
− Type BL and BH: 24 mm / 8 mm;
− Type CL and CH: 32 mm / 8 mm.
The colour fastness to light shall be determined for all colours.
___________
1)
 A consolidated edition 2.1 exists, including IEC 60684-2:1997 and its Amendment 1 (2003).

---------------------- Page: 9 ----------------------
– 8 – 60684-3-248 © IEC:2007
7 Elevated temperature performance test
Three specimens for each size as detailed in Table 1 shall be tested.
(100 ± 2) mm lengths of expanded sleeving shall be cut and recovered, according to the
manufacturer’s or supplier’s recommendations, onto the appropriate size of stepped mandrel,
as detailed in Figure 1.
After recovery onto the stepped mandrel, the assembly shall be allowed to cool to room
temperature and the lengths of sleeving over the masking tape shall be removed.
The assembly shall then been conditioned for (24 ± 0,5) h in an oven at the temperature
specified in Table 8.
On removal from the oven the assembly shall be allowed to cool to room temperature and any
movement of the sleeving away from the masking tape on the Y diameter shall be measured as
specified in Table 8 to an accuracy of ±1 mm.
All measurements shall be recorded and the result is the mean of the three measurements.


All dimensions in millimetres
50 ± 2 50 ± 2
25 ± 2 25 ± 2
Masking tape Masking tape
Sleeving
Aluminium stepped mandrel
according to Table 1
IEC  287/07

Figure 1 – Test assembly for elevated temperature performance
Table 1 – Size of stepped mandrel for elevated temperature performance test.
Diameters
mm
Type Size
X Y
AL and AH 12,7/6,4
6,4 ± 0,1 10 ± 1
BL and BH 24/8 8,0 ± 0,1 20 ± 1
CL and CH 32/8
8,0 ± 0,1 26 ± 1

∅X
∅Y

---------------------- Page: 10 ----------------------
60684-3-248 © IEC:2007 – 9 –
Table 2 – Dimensional requirements – Type AL and AH
Recovered
Recovered total
Internal diameter meltable wall
wall thickness
Size code
thickness
mm mm mm
a
Expanded Recovered
Nominal
min. max.

3,2/1,6 3,2 1,6 0,10
0,70 ± 0,10
4,8/2,4 4,8 2,4 0,70± 0,10 0,10
6,4/3,2 6,4 3,2 0,13
0,75 ± 0,15
9,5/4,8 9,5 4,8 0,13
0,75 ± 0,15
12,7/6,4 12,7 6,4 0,15
0,80 ± 0,15
19,0/9,5 19,0 9,5 0,15
0,90 ± 0,15
25,4/12,7 25,4 12,7 1,10 ± 0,20 0,20
38,0/19,0 38,0 19,0 0,20
1,20 ± 0,20
51,0/25,4 51,0 25,4 1,50 ± 0,25 0,40
a
For customer information only.

In those cases where the inner wall distorts or flows during recovery, it may not be possible to
determine the recovered inside diameter accurately. In these cases, the sleeving may be
recovered over a mandrel or plug gauge of the specified diameter after recovery for the size
being measured.
Following recovery, the specimen shall be examined for complete contact with the mandrel or
plug gauge to establish compliance with the requirements for recovered diameter.
Table 3 – Dimensional requirements – Type BL and BH
Recovered
Recovered total
Internal diameter meltable wall
wall thickness
Size code
thickness
mm mm mm
a
Expanded Recovered Nominal
min. max.
3/1 3 1 0,5
1,0 ± 0,30
4,5/1,5 4,5 1,5 0,5
1,0 ± 0,30
6/2 6 2 0,6
1,0 ± 0,30
9/3 9 3 1,4 ± 0,30 0,6
12/4 12 4 0,8
1,8 ± 0,40
19/6 19 6 2,2 ± 0,60 0,8
24/8 24 8 1,0
2,5 ± 0,60
40/13 40 13 2,5 ± 0,60 1,0
a
For customer information only.

In those cases where the inner wall distorts or flows during recovery, it may not be possible to
determine the recovered inside diameter accurately. In these cases, the sleeving may be
recovered over a mandrel or plug gauge of the specified diameter after recovery for the size
being measured.

---------------------- Page: 11 ----------------------
– 10 – 60684-3-248 © IEC:2007
Following recovery, the specimen shall be examined for complete contact with the mandrel or
plug gauge to establish compliance with the requirements for recovered diameter.
Table 4 – Dimensional requirements – Type CL and CH
Recovered
Recovered total
Internal diameter meltable wall
wall thickness
Size code
thickness
mm mm mm
a
Expanded Recovered
Nominal
min. max.
4/1 4 1 0,5
1,0 ± 0,30
8/2 8 2 1,0 ± 0,30 0,5
12/3 12 3 0,6
1,4 ± 0,30
16/4 16 4 1,8 ± 0,40 0,8
24/6 24 6 0,8
2,2 ± 0,60
32/8 32 8 2,5 ± 0,60 1,0
52/13 52 13 1,0
2,5 ± 0,60
a
For customer information only.

In those cases where the inner wall distorts or flows during recovery, it may not be possible to
determine the recovered inside diameter accurately. In these cases, the sleeving may be
recovered over a mandrel or plug gauge of the specified diameter after recovery for the size
being measured.
Following recovery, the specimen shall be examined for complete contact with the mandrel or
plug gauge to establish compliance with the requirements for recovered diameter.

---------------------- Page: 12 ----------------------
60684-3-248 © IEC:2007 – 11 –
Table 5 – Property requirements
IEC 60684-2 Max.
Property clause or Units or Requirements Remarks
subclause Min.
Dimensions 3
Internal diameter 3.1.2 mm Tables 2, 3 and 4
Wall thickness 3.3.2 mm Tables 2, 3 and 4
Concentricity 3.3.3 % Min. Tables 2 and 3: 60
expanded
Table 4: 50
Heat shock 6
Heat at 200 °C ± 5K
Tensile strength 19.1 and MPa Min. 7
19.2
150
 % Min.
Elongation at break 19.1 and

19.2
  Type A and B Type C Heat the expanded
sleeving at 200 °C ± 5 K
Longitudinal change 9 % Max. –15 –20
for (5 ± 1 ) min
+1 +1
Bending at low 14 – – No cracking
Test at – 55 °C± 3 K
temperature after conditioning at the
shall be visible
same temperature for 4 h
For strips, the mandrel
shall be between 15 and
17 times the wall
thickness. Full section
sleeving is tested unfilled
and the mandrel shall be
between 20 and 22 times
the outer diameter
Dimensional stability 16 – – The dimensions shall be For non-standard sizes as
on storage as specified in Tables , agreed between customer
2,3 and 4 and supplier
Tensile strength 19.1 and MPa Min. 9 The cross sectional area
19.2 shall be calculated based
Elongation at break % Min. 200
on the jacket thickness
19.1 and
only.
19.2
Use a jaw separation rate
of 100 mm/min. Below
6,5 mm ∅ as sleeving. At
6,5 mm ∅ and above as
dumbells
Secant modulus at 19.4 MPa Min. 40 The cross-sectional area
2 % elongation shall be calculated based
MPa Max. 175
on the jacket thickness
only
Breakdown voltage 21 kV Min. Table 6
Volume resistivity at 23
room temperature
11
23.4.2 Ωm Min.
10


Flame propagation 26
Time of burning Method A s Max. 30

---------------------- Page: 13 ----------------------
– 12 – 60684-3-248 © IEC:2007
Table 5 (continued)
IEC 60684-2 Max.
Property clause or Units or Requirements Remarks
subclause Min.
Colour fastness to light 34  The colour standard Fastness standard 5
contrast between the

exposed and unexposed
parts of the specimen shall
Standard identification Min.
be equal to or less than that
number
of the fastness standard
Copper corrosion 33 % Max. None above the allowable
Heat for (16 ± 0,5) h
8 %
at 150 °C ± 3 K
Heat ageing 39  Heat at 150 °C ± 3 K
Tensile strength 19.1 and 19.2 MPa Min. 7
Elongation at break 19.1 and 19.2 % Min. 150
Water absorption 40 % Max. 0,5 Total wall

The breakdown voltage shall be determined by any of the methods described in 21.2, 21.3 or
21.4 of IEC 60684-2. . The central value shall comply with the minimum value in Table 6. The
rate of application of the voltage shall be 500 V/s.
Table 6 – Requirements for breakdown voltage
a
Nominal recovered wall thickness Breakdown voltage
min.
mm
kV
0,70 10
0,75 11
0,80 12
0,90 13
1,00 15
1.10 16
1,20 18
1,40 21
1,50 22
1,80 23
2,20 24
2,50 25
a
For non-standard wall thicknesses, the electric strength shall be at least that of the next smaller standard wall
thickness. For wall thicknesses smaller than 0,70mm, the electric strength shall be at least 15 kV/mm.

---------------------- Page: 14 ----------------------
60684-3-248 © IEC:2007 – 13 –
Table 7 – Resistance to selected fluids
Immersion
Standard
temperature
Fluids Type
or symbol
°C ± 2 K
Fuels Gasoline ISO 1817 23
Liquid B
Kerosene ISO 1817 23
Liquid F
a
Hydraulic fluids Silicone base 23
S- 1714
Phosphate base ISO 1817 23
Liquid 103
a
Mineral base H-520 23
Oils Synthetic base ISO 1817 23
Liquid 101
Mineral base ISO 1817 23
Oil No 2
a
Mineral base 0-1176 23
a
Mineral base 23
0-142
Cleaning fluids Solvents Isopropyl alcohol 23
 Propanol 25 % 23
White spirit 75 %
 Methylethylketone 23
De-icing fluids Runway de-icers Inhibited potassium 23
acetate in water, 50 %
Aircraft de-icers Ethylene glycol 80 % 23
Water 20 %
a
These are commercially available fluids which can be identified in aviation fluid guides.

Other fluids and/or temperatures may be specified by agreement between supplier and
customer.
Table 8 – Additional property requirements
IEC 60684-2 Max.
Property Clause or Units or Requirements Remarks
subclause Min.
Resistance to selected 36  Use the fluids and test
fluids   temperatures specified in
Table 7
Tensile strength 19.1 and 19.2 MPa Min. 7
Elongation at break 19.1 and 19.2 % Min. 200
Elevated temperature – mm Max 3,0
Heat at 105 °C ± 2 K for
performance
low temperature
adhesive.
Heat at 125 °C ± 2 K for
high temperature
adhesive

___________

---------------------- Page: 15 ----------------------
– 14 – 60684-3-248 © CEI:2007
SOMMAIRE
AVANT-PROPOS.15
INTRODUCTION.17
1 Domaine d'application .18
2 Références normatives.19
3 Désignation .19
4 Conditions d'essai .19
5 Exigences .19
6 Qualification des gaines .19
7 Essai de performance à des températures élevées.20

Figure 1 – Assemblage pour essai de performances à températures élevées.20

Tableau 1 – Dimensions du mandrin étagé pour l'essai de performance à températures
élevées.21
Tableau 2 – Exigences dimensionnelles – Type AL et AH .21
Tableau 3 – Exigences dimensionnelles – Type BL et BH .22
Tableau 4 – Exigences dimensionnelles – Type CL et CH.22
Tableau 5 – Exigences relatives aux propriétés .23
Tableau 6 – Exigences relatives à la tension de claquage.24
Tableau 7 – Résistance aux fluides choisis.25
Tableau 8 – Exigences complémentaires relatives aux propriétés .25

---------------------- Page: 16 ----------------------
60684-3-248 © CEI:2007 – 15 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________

GAINES ISOLANTES SOUPLES –

Partie 3: Spécifications pour types particuliers de gaines –
Feuille 248: Gaines à usage général, thermorétractables, en polyoléfine,
à double paroi, retardées à la flamme, avec des rapports de rétreint
de 2:1, 3:1 et 4:1


AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de n
...