IEC 60684-3-247:2019

Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded, thick and medium wall

IEC 60684-3-247:2019

Name:IEC 60684-3-247:2019   Standard name:Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded, thick and medium wall
Standard number:IEC 60684-3-247:2019   language:English language
Release Date:07-Aug-2019   technical committee:TC 15 - Solid electrical insulating materials
Drafting committee:WG 5 - TC 15/WG 5   ICS number:01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION

IEC 60684-3-247
Edition 2.0 2019-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Flexible insulating sleeving –
Part 3: Specifications for individual types of sleeving –
Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded,
thick and medium wall




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IEC 60684-3-247
Edition 2.0 2019-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Flexible insulating sleeving –

Part 3: Specifications for individual types of sleeving –

Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded,

thick and medium wall
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.035.20 ISBN 978-2-8322-7285-5

– 2 – IEC 60684-3-247:2019 RLV © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Designation . 7
5 Conditions of test . 7
6 Requirements . 7
7 Sleeving conformance . 7
Annex A (informative) Guide to the available sizes and wall thicknesses . 15
Bibliography . 17

Table 1 – Property requirements (1 of 3) . 8
Table 2 – Requirements for breakdown voltage . 14
Table 3 – Resistance to selected fluids . 14
Table 4 – Additional property requirements .
Table A.1 – Type A medium wall . 15
Table A.2 – Type B thick wall . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLEXIBLE INSULATING SLEEVING –

Part 3: Specifications for individual types of sleeving –
Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall,
not flame retarded, thick and medium wall

FOREWORD
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– 4 – IEC 60684-3-247:2019 RLV © IEC 2019
International Standard IEC 60684-3-247 has been prepared by IEC technical committee 15:
Solid electrical insulating materials.
This second edition cancels and replaces the first edition published in 2011 and
Amendment 1:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
editions:
a) removal of the colour fastness to light test, as this is covered by the test for carbon black
content;
b) change of low temperature flexibility test to -20 °C to align with sheet 214;
c) change of final conditioning temperature of peel strength samples to 200 ºC to align with
the temperature in Clause 5;
d) removal of the fungus resistance test as there is no evidence that fungus growth is an issue
either by testing or in use.
The text of this International Standard is based on the following documents:
FDIS Report on voting
15/890/FDIS 15/900/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 the parts in the IEC 60684 series, under the general title Flexible insulating
sleeving, 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
This document is one of a series of standards 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 document comprises one of the sheets of Part 3 as follows:
Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded, thick and
medium wall
– 6 – IEC 60684-3-247:2019 RLV © IEC 2019
FLEXIBLE INSULATING SLEEVING –

Part 3: Specifications for individual types of sleeving –
Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall,
not flame retarded, thick and medium wall

1 Scope
This part of IEC 60684 gives the requirements for two types of heat-shrinkable, polyolefin
sleeving, dual wall, not flame retarded with a nominal shrink ratio of 3:1.
This sleeving has been found suitable for use at temperatures of up to 100 °C.
• Type A: Medium wall, internal diameter up to 200,0 mm typically.
• Type B: Thick wall, internal diameter up to 200,0 mm typically.
These sleevings are normally supplied in colour black.
Since these types of sleevings sleving cover a significantly large range of sizes and wall
thicknesses, Annex A (Tables A.1 and A.2) provides a guide to the range of sizes available.
The actual size shall will be agreed between the user and supplier.
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 will 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 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 60296:20032012, Fluids for electrotechnical applications – Unused mineral insulating oils
for transformers and switchgear
IEC 60502-1:2004, Power cables with extruded insulation and their accessories for rated
voltages from 1 kV (U = 1,2 kV) up to 30 kV (U = 36 kV) – Part 1: Cables for rated voltages
m m
of 1 kV (U = 1,2 kV) and 3 kV (U = 3,6 kV)
m m
IEC 60684-1:2003, Flexible insulating sleeving – Part 1: Definitions and general requirements
IEC 60684-2:19972011, Flexible insulating sleeving – Part 2: Methods of test
Amendment 2 (2005)
IEC 60757:1983, Code for designation of colours
ISO 846:1997, Plastics – Evaluation of the action of micro-organisms
ISO 868:2003, Plastics and ebonite – Determination of indentation hardness by means of a
durometer (Shore hardness)
ISO 11357-3:19992018, Plastics – Differential scanning calorimetry (DSC) – Part 3:
Determination
...

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