IEC 60893-3-3:2003+AMD1:2011 CSV

Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 3-3: Specifications for individual materials - Requirements for rigid laminated sheets based on melamine resins

IEC 60893-3-3:2003+A1:2011 Gives the requirements for industrial rigid laminated sheets for electrical purposes based on melamine resins and different reinforcements. Applications and distinguishing properties are given. 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. In this revision of the IEC 60893 series of specifications, new material types have been included, changes have been made to the property requirements of some existing types, a new method for testing permittivity and dissipation factor has been added, and all non-specification data for each type has been moved to a new Part 4 document - IEC 60893-4 - Typical values. This consolidated version consists of the second edition (2003) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication.

Matériaux isolants - Stratifiés industriels rigides en planches à base de résines thermodurcissables à usages électriques - Partie 3-3: Spécifications pour matériaux particuliers - Prescriptions pour stratifiés rigides en planches à base de résine mélamine

La CEI 60893-3-3:2003+A1:2011 Donne les prescriptions pour les stratifiés industriels rigides en planches à usages électriques, à base de résine mélamine et de différents renforts. Leurs applications et propriétés distinctives sont indiquées. Les matériaux conformes à la présente spécification satisfont aux niveaux de performances établis. Cependant, il convient que le choix d'un matériau par un utilisateur pour une application spécifique soit fondé sur les prescriptions réelles nécessaires pour obtenir les performances satisfaisantes pour cette application, et qu'il ne soit pas fondé sur cette seule spécification. Dans cette révision de la série de spécifications CEI 60893, de nouveaux matériaux ont été introduits, des modifications ont été faites aux prescriptions pour les propriétés de certains types existants, une nouvelle méthode pour l'essai de la permittivité et du facteur de dissipation a été ajoutée et, pour chaque type, les valeurs n'étant pas des spécifications ont été déplacées dans une nouvelle partie 4 - CEI 60893-4 - Valeurs typiques.  Cette version consolidée comprend la deuxième édition (2003) et son amendement 1 (2011). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.

General Information

• Status: Published
• Publication Date: 26-Jan-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: TC 15 - Solid electrical insulating materials
• Current Stage: PPUB - Publication issued
• Start Date: 27-Jan-2012
• Completion Date: 27-Jan-2012

Standards Content (Sample)

IEC 60893-3-3
®

Edition 2.1 2012-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Insulating materials – Industrial rigid laminated sheets based on thermosetting
resins for electrical purposes –
Part 3-3: Specifications for individual materials – Requirements for rigid
laminated sheets based on melamine resins

Matériaux isolants – Stratifiés industriels rigides en planches à base de résines
thermodurcissables à usages électriques –
Partie 3-3: Spécifications pour matériaux particuliers – Prescriptions pour
stratifiés rigides en planches à base de résine mélamine

IEC 60893-3-3:2003+A1:2011

---------------------- Page: 1 ----------------------
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IEC 60893-3-3

®


Edition 2.1 2012-01




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Insulating materials – Industrial rigid laminated sheets based on thermosetting

resins for electrical purposes –

Part 3-3: Specifications for individual materials – Requirements for rigid


laminated sheets based on melamine resins



Matériaux isolants – Stratifiés industriels rigides en planches à base de résines


thermodurcissables à usages électriques –

Partie 3-3: Spécifications pour matériaux particuliers – Prescriptions pour

stratifiés rigides en planches à base de résine mélamine










INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX CD


ICS 29.035.01 ISBN 978-2-88912-879-2



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

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 60893-3-3 © IEC:2003+A1:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
INTRODUCTION (to amendment 1) . 5

1 Scope . 6
2 Normative references. 6
3 Designation . 6
4 Requirements . 7

Bibliography . 13

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60893-3-3 © IEC:2003+A1:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

INSULATING MATERIALS –
INDUSTRIAL RIGID LAMINATED SHEETS
BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES –

Part 3-3: Specifications for individual materials –
Requirements for rigid laminated sheets based on melamine resins



FOREWORD
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This consolidated version of IEC 60893-3-3 consists of the second edition (2003)
[documents 15C/1523/FDIS and 15C/1537/RVD] and its amendment 1 (2011) [documents
15/489/CDV and 15/616/RVC]. It bears the edition number 2.1.
The technical content is therefore identical to the base edition and its amendment and
has been prepared for user convenience. A vertical line in the margin shows where the
base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.

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– 4 – 60893-3-3 © IEC:2003+A1:2011
International Standard IEC 60893-3-3 has been prepared by subcommittee 15C: Specifications,
of IEC technical committee 15: Insulating materials.
In this revision of the IEC 60893 series of specifications, new material types have been
included, changes have been made to the property requirements of some existing types, a new
method for testing permittivity and dissipation factor has been added, and all non-specification
data for each type has been moved to a new Part 4 document − IEC 60893-4 − Typical values.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability 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.

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 publication using a colour printer.

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60893-3-3 © IEC:2003+A1:2011 – 5 –
INTRODUCTION
This part of IEC 60893 is one of a series, which deals with industrial rigid laminated sheets
based on thermosetting resins for electrical purposes.
This series consists of four parts:
Part 1: Definitions, designations and general requirements (IEC 60893-1)
Part 2: Methods of test (IEC 60893-2)
Part 3: Specifications for individual materials (IEC 60893-3)
Part 4: Typical values (IEC 60893-4)
IEC 60893-3-3 contains one of the specification sheets comprising Part 3, as follows:
Sheet 3: Requirements for rigid laminated sheets based on melamine resins

INTRODUCTION
(to amendment 1)
This amendment introduces revised limits for CHARPY and IZOD impact strengths for the
requirements of all types of rigid laminated sheets based on melamine resins. These revised
limits are based on the results of round-robin testing.

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– 6 – 60893-3-3 © IEC:2003+A1:2011
INSULATING MATERIALS –
INDUSTRIAL RIGID LAMINATED SHEETS
BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES –

Part 3-3: Specifications for individual materials –
Requirements for rigid laminated sheets based on melamine resins


1 Scope
This part of IEC 60693 gives the requirements for industrial rigid laminated sheets for electrical
purposes based on melamine resins and different reinforcements.
Applications and distinguishing properties are given in Table 1.
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 60893-1:, Insulating materials – Industrial rigid laminated sheets based on thermosetting
1
resins for electrical purposes – Part 1: Definitions, designations and general requirements
IEC 60893-2:2003, Industrial rigid laminated sheets based on thermosetting resins for electrical
purposes – Part 2: Methods of test
3 Designation
The sheets covered by this Specification are classified into types, which differ in reinforcement
employed and in their distinguishing properties. The sheets are designated by
– the IEC standard number,
– a two-letter abbreviation denoting the resin,
– a second two-letter abbreviation, denoting the reinforcement,
– a serial number,
– nominal thickness x width x length in millimetres.
_________
1
 To be published

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60893-3-3 © IEC:2003+A1:2011 – 7 –
Example of designation: Industrial rigid laminated sheet of type MF CC 201 with a nominal
thickness of 10 mm, 500 mm wide, 1 000 mm long.
Sheet IEC 60893-3-3 – MF CC 201 − 10 x 500 x 1 000.
The following abbreviations are used in this Part 3 sheet:
Type of resin Types of reinforcement
MF Melamine CC Woven cotton cloth
 GC Woven glass cloth

4 Requirements
In addition to the general requirements given in IEC 60893-1, the laminated sheets shall also
comply with the dimensional requirements given in Tables 2, 3 and 4 as well as with the other
requirements given in Tables 5, 6 and 7.
Table 1 − Types of industrial rigid laminated sheets based on melamine resins
Laminate type
a
Applications and distinguishing characteristics
Serial
Resin Reinforcement
number
CC 201 Mechanical and electrical applications. Arc and tracking resistant
b
(coarse weave)
MF
GC 201 Mechanical and electrical applications. High mechanical strength. Arc
and tracking resistant. Low flammability
a
It should not be inferred from the contents of Table 1 that laminates of any particular type are necessarily
unsuitable for applications other than those listed for them, or that specific laminates will be suitable for all
applications within the wide description given.
b
Fabric weaves of type PC and CC reinforcements.

Mass per unit area Thread count
2 -1
g/m cm
Coarse weave
>130 ≤30
These values are only for information. They are not to be considered as specification values. In general, the finer
weave materials have better machining characteristics.

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– 8 – 60893-3-3 © IEC:2003+A1:2011
Table 2 − Tolerances on thickness
(test method: see 4.1 of IEC 60893-2)
Tolerance (all types)
Nominal thickness
± mm
mm
MF CC 201 MF GC 201
0,4 − 0,10
0,5 0,12
−
0,6 0,13
−
0,8 0,19 0,16
1,0 0,20 0,18
1,2 0,22 0,21
1,5 0,24 0,24
2,0 0,26 0,28
2,5 0,29 0,33
3,0 0,31 0,37
4,0 0,36 0,45
5,0 0,42 0,52
6,0 0,46 0,60
8,0 0,55 0,72
10,0 0,63 0,82
12,0 0,70 0,94
14,0 0,78 1,02
16,0 0,85 1,12
20,0 0,95 1,30
25,0 1,10 1,50
30,0 1,22 1,70
35,0 1,34 1,95
40,0 1,45 2,10
45,0 1,55 2,30
50,0 1,65 2,45
Where the nominal thickness is not one of the preferred thicknesses listed, then the
tolerance for the next highest preferred nominal thickness shall apply.
NOTE Other tolerances may be agreed between the supplier and the purchaser.

Table 3 − Flatness
(test method: see 4.2 of IEC 60893-2)
Length of straight edge
Thickness d
mm
mm
1 000 500
3 < d ≤ 6 10 2,5
6 < d ≤ 8 8 2,0
8 < d 6 1,5

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60893-3-3 © IEC:2003+A1:2011 – 9 –
Table 4 − Tolerances on width of cut strips
(minus tolerances only)
Nominal Nominal width, all types
thickness mm
d
3 < b ≤ 50 50 < b ≤ 100 100 < b ≤ 160 160 < b ≤ 300 300 < b ≤ 500 500 < b ≤ 600
mm
0,4 0,5 0,5 0,5 0,6 1,0 1,5
0,5 0,5 0,5 0,5 0,6 1,0 1,5
0,6 0,5 0,5 0,5 0,6 1,0 1,5
0,8 0,5 0,5 0,5 0,6 1,0 1,0
1,0 0,5 0,5 0,5 0,6 1,0 1,0
1,2 0,5 0,5 0,5 1,0 1,2 1,2
1,5 0,5 0,5 0,5 1,0 1,2 1,2
2,0 0,5 0,5 0,5 1,0 1,2 1,5
2,5 0,5 1,0 1,0 1,5 2,0 2,5
3,0 0,5 1,0 1,0 1,5 2,0 2,5
4,0 0,5 2,0 2,0 3,0 4,0 5,0
5,0 0,5 2,0 2,0 3,0 4,0 5,0
NOTE Unilateral, all-negative tolerances are normally applied to the width of the cut strips, and are given in the
above table. Other tolerances may be agreed upon between purchaser and supplier.

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– 10 –          60893-3-3  IEC:2003+A1:2011

Table 5 − Property requirements
Nominal Type
Test method
thickness of
Minimum
in IEC 60893- sheet to which
Property Unit or Remarks
2 test is
MF CC 201 MF GC 201
maximum
applicable
Subclause
mm
Flexural strength 5.1 MPa Minimum ≥1,5 70 240
Charpy impact strength parallel to 5.4.2 2 Minimum 3,0 30
≥5
kJ/m
Conformance with the requirements for
laminations
either the Charpy or Izod test constitutes,
in this respect, conformance with this
Izod impact strength parallel to 5.4.3 2 Minimum ≥5 2,5 31
kJ/m
specification.
laminations
Electric strength at 90 °C in oil 6.1 kV/mm Minimum ≤3 See Table 6
perpendicular to laminations
Breakdown voltage at 90 °C in oil 6.1 kV Minimum >3 15 15
parallel to laminations
1 2
Insulation resistance after immersion 6.3 Minimum All 1 x 10 1 x 10
MΩ
in water
Proof tracking index 6.4 Minimum 500 500
− ≥3
The small-scale laboratory test used in
this standard for assigning a flammability
category is primarily for monitoring
consistency of production of laminates.
Flammability 7.2 Category 3 V-0 V-0 The results so obtained should not in any
circumstances be considered as an
overall indication of the potential fire
hazards presented by these laminates
under actual conditions of use.
Water absorption 8.2 mg Maximum All See Table 7

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60893-3-3  IEC:2003+A1:2011          – 11 –


Nominal thickness Type
Test method in
Minimum
of sheet to which
IEC 60893-2
Property Unit or Remarks
test is applicable
MF CC 201 MF GC 201
Maximum
Subclause
mm
Flexural strength 5.1 MPa Minimum ≥ 1,5 70 240
Conformance with the requirements for
5.4.2
Charpy impact strength or Izod
either the Charpy or Izod test constitutes,

2
impact strength parallel to or Minimum ≥ 5 3 35
kJ/m
in this respect, conformance with this
laminations
5.4.3
specification.
Electric strength at 90 °C in oil
6.1 kV/mm Minimum ≤ 3 See Table 6
perpendicular to laminations
Breakdown voltage at 90 °C in
6.1 kV Minimum > 3 15 15
oil parallel to laminations
Insulation resistance after

1 2
6.3 MΩ Minimum All
1 × 10 1 × 10
immersion in water
Proof tracking index 6.4 − Minimum ≥ 3 500 500
The small-scale laboratory test used in
this standard for assigning a flammability
category is primarily for monitoring
consistency of production of laminates.
Flammability 7.2 Category 3 V-0 V-0 The results so obtained should not in any
circumstances be considered as an
overall indication of the potential fire
hazards presented by these laminates
under actual conditions of use.
Water absorption 8.2 mg Maximum All See Table 7

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– 12 –          60893-3-3  IEC:2003+A1:2011


Table 6 − Electric strength at 90 °C in oil, perpendicular to laminations
a
(1 min proof test or 20 s step-by-step test) (kV/mm)
b
Mean measured thickness of test specimen
mm
Type
0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,2 1,5 1,8 2,0 2,2 2,4 2,5 2,6 2,8 3,0
MF CC 201 − − 6,6 6,3 6,1 5,8 5,6 5,3 4,9 4,5 4,3 4,2 4,1 4,1 4,1 4,0 4,0
MF GC 201 9,1 8,6 8,2 7,9 7,6 7,3 7,0 6,6 6,1 5,6 5,4 5,3 5,2 5,2 5,2 5,1 5,0
a
The two tests are alternatives. A material meeting either requirement shall be deemed to comply with the specification with respect to electric strength at 90 °C in oil,
perpendicular to laminations.
b
If the arithmetic mean of the measured values of thickness of the test specimen lies between two values of thickness shown in the above table, the limit shall be obtained
by interpolation. If the arithmetic mean of the measured values of thickness is below the minimum thickness for which a limit is given, the electric strength limit appropriate to
the minimum thickness shall apply. If the nominal thickness is 3 mm and the arithmetic mean measured thickness exceeds 3 mm, the limit for 3 mm shall apply.

Table 7 − Limits for water absorption (mg)
a
Mean measured thickness of test specimen
mm
Type
b
0,4 0,5 0,6 0,8 1,0 1,2 1,5 2,0 2,5 3,0 4,0 5,0 6,0 8,0 10,0 12,0 14,0 16,0 20,0 25,0 22,5
MF CC 201 133 136 139 144 151 157 162 169 190 210 260 305 350 400 450 550 660 1 080
− − −
MF GC 201 103 107 110 116 123 129 139 155 172 188 220 252 285 350 414 479 544 609 738 900 1 080
a
If the arithmetic mean of the measured values of thickness of the test specimen lies between two values of thickness shown in the above table, the limit shall be obtained by
interpolation. If the arithmetic mean of the measured values of thickness is below the minimum thickness for which a limit is given, the water absorption limit appropriate to the
minimum thickness shall apply. If the nominal thickness is 25 mm and the arithmetic mean measured thickness exceeds 25 mm, the limit for 25 mm shall apply.
b
Sheets of nominal thicknesses greater than 25 mm shall be machined to a relatively smooth surface on one face to a thickness of 22,5 mm ± 0,3 mm.

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60893-3-3 © IEC:2003+A1:2011 – 13 –
Bibliography
[1] ISO 1642:1987, Plastics – Industrial laminated sheets based on thermosetting resins –
Specification (withdrawn)
[2] IEC 60893-3-1:2003, Insulating materials – Industrial rigid laminated sheets based on
thermosetting resins for electrical purposes – Part 3-1: Specifications for individual
materials – Types of industrial rigid laminated sheets
[3] IEC 60893-4, Insulating materials – Industrial rigid laminated sheets based on
thermosetting resins for electrical purposes – Part 4: Typical values



___________

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– 14 – 60893-3-3  CEI:2003+A1:2011
SOMMAIRE
AVANT-PROPOS . 15
INTRODUCTION . 17
INTRODUCTION (à l'amendement 1) . 17

1 Domaine d’application . 18
2 Références normatives . 18
3 Désignation . 18
4 Prescriptions . 19

Bibliographie . 25

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60893-3-3  CEI:2003+A1:2011 – 15 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
___________

MATÉRIAUX ISOLANTS –
STRATIFIÉS INDUSTRIELS RIGIDES EN PLANCHES
À BASE DE RÉSINES THERMODURCISSABLES
À USAGES ÉLECTRIQUES –

Partie 3-3: Spécifications pour matériaux particuliers –
Prescriptions pour stratifiés rigides en planches
à base de résine mélamine


AVANT-PROPOS
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