IEC 60893-3-2:2003+AMD1:2011 CSV

Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 3-2: Specifications for individual materials - Requirements for rigid laminated sheets based on epoxy resins

IEC 60893-3-2:2003+A1:2011 Gives the requirements for industrial rigid laminated sheets for electrical purposes based on epoxy 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 3-2: Spécifications pour matériaux particuliers - Prescriptions pour stratifiés rigides en planches à base de résine époxyde

La CEI 60893-3-2:2003+A1:2011 Donne les prescriptions pour les stratifiés industriels rigides en planches à usages électriques, à base de résine époxyde 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: 27-Nov-2011
• 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: 28-Nov-2011
• Completion Date: 28-Nov-2011

Standards Content (Sample)

IEC 60893-3-2
®

Edition 2.1 2011-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Insulating materials – Industrial rigid laminated sheets based on thermosetting
resins for electrical purposes –
Part 3-2: Specifications for individual materials – Requirements for rigid
laminated sheets based on epoxy resins

Matériaux isolants – Stratifiés industriels rigides en planches à base de résines
thermodurcissables à usages électriques –
Partie 3-2: Spécifications pour matériaux particuliers – Prescriptions pour
stratifiés rigides en planches à base de résine époxyde

IEC 60893-3-2:2003+A1:2011

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60893-3-2
®

Edition 2.1 2011-11

INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Insulating materials – Industrial rigid laminated sheets based on thermosetting
resins for electrical purposes –
Part 3-2: Specifications for individual materials – Requirements for rigid
laminated sheets based on epoxy resins

Matériaux isolants – Stratifiés industriels rigides en planches à base de résines
thermodurcissables à usages électriques –
Partie 3-2: Spécifications pour matériaux particuliers – Prescriptions pour
stratifiés rigides en planches à base de résine époxyde

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX CF
ICS 29.035.01 ISBN 978-2-88912-739-9

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

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– 2 – 60893-3-2 © IEC:2003+A1:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5

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

Bibliography . 20

Table 1 − Types of industrial rigid laminated sheets based on epoxy resins . 8
Table 2 − Tolerances on thickness (test method: see 4.1 of IEC 60893-2). 9
Table 3 − Flatness (test method: see 4.2 of IEC 60893-2) . 10
Table 4 − Tolerances on width of cut strips (minus tolerances only) . 10
Table 5 – Property requirements . 11
Table 6 − Electric strength at 90 °C in oil, perpendicular to laminations (1 min proof test
or 20 s step-by-step test) (kV/mm) . 16
Table 7 − Limits for water absorption (mg) . 18

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60893-3-2 © IEC:2003+A1:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

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

Part 3-2: Specifications for individual materials –
Requirements for rigid laminated sheets based on epoxy resins



FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

This consolidated version of IEC 60893-3-2 consists of the third edition (2003)
[documents 15C/1522/FDIS and 15C/1536/RVD] and its amendment 1 (2011) [documents
15/505/CDV+15/540/CDV and 15/632/RVC+15/592A/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 – 60893-3-2 © IEC:2003+A1:2011
International Standard IEC has been prepared by subcommittee 15C: Specifications, of IEC
technical committee 15: Insulating materials.
The amendment introduces new/improved limits of CHARPY impact strength and IZOD impact
strength for all types of rigid laminated sheets based on epoxy resins and new/improved limits
of breakdown voltage to all EP GC types and a new/improved limit of flexural strength for the
EP PC 301 and a new limit of proof tracking index for the EP GC 306 type. This amendment
also introduces new types of rigid laminated sheets based on epoxy resins.
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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60893-3-2 © 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 60893-3-2 contains one of the specification sheets comprising Part 3, as follows:
Sheet 2: Requirements for rigid laminated sheets based on epoxy resins

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– 6 – 60893-3-2 © IEC:2003+A1:2011
INSULATING MATERIALS –
INDUSTRIAL RIGID LAMINATED SHEETS
BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES –

Part 3-2: Specifications for individual materials –
Requirements for rigid laminated sheets based on epoxy resins


1 Scope
This part of IEC 60893 gives the requirements for industrial rigid laminated sheets for electrical
purposes based on epoxy 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
IEC 61189-2:2006, Test methods for electrical materials, printed boards and other
interconnection structures and assemblies – Part 2: Test methods for materials for
interconnection structures
IEC 61249-2-21:2003, Materials for printed boards and other interconnecting structures –
Part 2-21: Reinforced base materials, clad and unclad - Non-halogenated epoxide woven E-
glass reinforced laminated sheets of defined flammability (vertical burning test), copper-clad
3 Designation
The sheets covered by this specification are classified into types which differ in the
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;
___________
1
To be published

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60893-3-2 © IEC:2003+A1:2011 – 7 –
– nominal thickness x width x length in millimetres.
Example of designation: Industrial rigid laminated sheet of type EP GC 201 with a nominal
thickness of 10 mm, 500 mm wide, 1 000 mm long:
Sheet IEC 60893-3-2 – EP GC 201 - 10 × 500 × 1 000.
The following abbreviations are used in this Part 3 sheet:
Type of resin Type of reinforcement
EP Epoxy (epoxide) CC Woven cotton cloth
CP Cellulosic paper
GC Woven glass cloth
GM Glass mat
PC Woven polyester fibre 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.

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– 8 – 60893-3-2 © IEC:2003+A1:2011
Table 1 − Types of industrial rigid laminated sheets based on epoxy resins
Laminate type
b
Applications and distinguishing characteristics
Resin Reinforcement Serial
a
number
CC Mechanical and electrical applications. Good resistance to electrical tracking,
301

c
good wear and chemical resistance (fine weave )
CP Electronic applications. Good stability of electrical properties in high humidity.
201
Low flammability
Mechanical, electrical and electronic applications. Extremely high mechanical
201 strength at moderate temperature. Very good stability of electrical properties
in high humidity
202 Similar to type EP GC 201. Low flammability
203 Similar to type EP GC 201. High mechanical strength at elevated temperature
204 Similar to type EP GC 203. Low flammability
205 Similar to type EP GC 203, but with roving cloth
CG
306 Similar to type EP GC 203, but with improved tracking indices
307 Similar to type EP GC 205, but with improved tracking indices
308 Similar to type EP GC 203, but with improved thermal endurance properties
EP
Similar to EP GC 201, but with defined mechanical strength at elevated
309
temperature
310 Similar to EP GC 202, but with halogen free compound
311 Similar to EP GC 204, but with halogen free compound
Mechanical and electrical applications. Extremely high mechanical strength at
201
moderate temperature. Very good electrical properties in high humidity
202 Similar to type EP GM 201. Low flammability
203 Similar to type EP GM 201. High mechanical strength at elevated temperature
GM
204 Similar to type EP GM 203. Low flammability
305 Similar to type EP GM 203, but with improved thermal endurance properties
306 Similar to type EP GM 305, but with improved tracking indices
PC Electrical and mechanical applications. Good resistance to SF (coarse

6
301
c
weave )
a
2
This specification was originally based on ISO 1642 [1] , which is now obsolete. Consequently, the type
designations of the 200 series types come from ISO 1642 and those of the 300 series were added later.
b
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.
c
Fabric weaves of type PC and CC reinforcements:

Mass per unit area Thread count
2 -1
g/m cm
Coarse weave >130
≤30
Fine weave >30
≤130
Very fine weave >38
≤125
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.
The definition of halogen free epoxy laminated sheet is given in IEC 61249-2-21:2003:
The maximum total halogens contained in the resin plus reinforcement matrix no greater than 1500 ppm with a
maximum chlorine content of 900 ppm and maximum bromine content of 900 ppm. The test method for determination
of the halogen content is given in IEC 61189-2:2006.
___________
2
The figure in square brackets refers to the bibliography.

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60893-3-2 © IEC:2003+A1:2011 – 9 –
Table 2 − Tolerances on thickness
(test method: see 4.1 of IEC 60893-2)
Tolerance (all types)
±mm
EP GC
Nominal
EP GM
thickness 201; 202
EP CC EP CP EP GC 201; 202 EP PC
mm
203; 204
301 201 205; 307 203; 204 301
306; 308
305; 306
309; 310; 311
0,4 – 0,07 0,10 –
− −
0,5 – 0,08 0,12 –
– –
0,6 – 0,09 0,13 –
– –
0,8 0,16 0,10 0,16 – –
−
1,0 0,18 0,12 0,18 – –
–
1,2 0,19 0,14 0,20
– – 0,21
1,5 0,19 0,16 0,24 – 0,30 0,24
2,0 0,22 0,19 0,28 – 0,35 0,28
2,5 0,24 0,22 0,33 – 0,40 0,33
3,0 0,30 0,25 0,37 0,50
0,45 0,37
4,0 0,34 0,30 0,45 0,60 0,50 0,45
5,0 0,39 0,34 0,52 0,70 0,55 0,52
  For EP GC 205; 307,
plus only for 6 mm
and above
6,0 0,44 0,37 0,60 0,60 0,60
1,60
8,0 0,52 0,47 0,72 1,90 0,70 0,72
10,0 0,60 – 0,82 0,80 0,82
2,20
12,0 0,68 – 0,94 2,40 0,90 0,94
14,0 0,74 – 1,02 1,00 1,02
2,60
16,0 0,80 – 1,12 1,10 1,12
2,80
20,0 0,93 – 1,30 1,30
3,00 1,30
25,0 1,08 – 1,50 3,50 1,40 1,50
30,0 1,22 – 1,70 1,45 1,70
4,00
35,0 1,34 – 1,95 4,40 1,50 1,95
40,0 1,47 – 2,10 1,55 2,10
4,80
45,0 1,60 – 2,30 1,65
5,10 2,30
50,0
1,74 – 2,45 5,40 1,75 2,45
60,0 2,02 – – 5,80 1,90 -
70,0 2,32 – – 2,00 -
6,20
80,0 2,62 – – 6,60 2,20 -
90,0 2,92 – – 2,35 -
6,80
100,0 3,22 – – 7,00 2,50 -
Where the nominal thickness is not one of the preferred thicknesses listed, then the tolerance for the next higher preferred
nominal thickness shall apply.
NOTE Other tolerances may be agreed between the supplier and the purchaser.

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– 10 – 60893-3-2 © IEC:2003+A1:2011
Table 3 − Flatness
(test method: see 4.2 of IEC 60893-2)
Thickness Length of straight edge
d mm
mm
1 000 500
10 2,5
3 < d ≤ 6
 8 2,0
6 < d ≤ 8
8 < d  6 1,5


− Tolerances on width of cut strips
Table 4
(minus tolerances only)
Nominal Nominal width, all types
mm
thickness
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 cut strips, and are given in the
above table. Other tolerances may be agreed upon between purchaser and supplier.

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60893-3-2  IEC:2003+A1:2011              – 11 –

Table 5 – Property requirements
Type
Nominal
Test method
thickness of
Minimum
in
sheet to
Property Unit or Remarks
IEC 60893-2
EP CC EP CP EP GC EP GC EP GC EP GC EP GC EP GC
which test is
maximum
301 201 201 202 203 204 205 306
applicable
Subclause
mm
1)
Flexural strength measured at 150 °C ± 3 K
1) 1) 1) 1)
Flexural strength 5.1 MPa Minimum ≥1,5 135 110 340 340 340 340 340 340 after 1 h at 150 °C ± 3 K not to be less than
50 % of the specified value
Charpy impact

2
strength parallel to 5.4.2 kJ/m Minimum ≥5
3,5 -- 33 33 33 33 50 33
Conformance with the requirements for either
laminations
the Charpy or Izod test constitutes, in this

Izod impact strength
    respect, conformance with this specification
2 35
parallel to 5.4.3 kJ/m Minimum ≥5
6,5 -- 34 34 34 34 54
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 parallel 6.1 kV Minimum >3 35 20 35 35 35 35 35 35
to laminations
Insulation resistance


after immersion in 6.3 Minimum All
MΩ 3 4

4 4 4 4 4 4
1x10 1×10 5×10 5×10 5×10 5×10 1×10 5x10
water

− −
Proof tracking index 6.4 Minimum


Thermal endurance 7.1 TI Minimum
≥3
The small-scale laboratory test used in this
standard for assigning a flammability category is
primarily for monitoring consistency of
production of laminates. The results so obtained
− − − − −
Flammability 7.2 Category 3  V-0  V-0  V-0
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 –             60893-3-2  IEC:2003+A1:2011

Table 5 (continued)
Nominal Type
Test
thickness of
Maximum
method in
sheet to which
Property Unit or Remarks
IEC 60893-2
EP GC EP GC EP GM EP GM EP GM EP GM EP GM EP GM EP PC
test is
minimum
307 308 201 202 203 204 305 306 301
applicable
Subclause
mm
1)
Flexural strength measured at 150 °C ± 3 K
1) 1) 1) 1) 1) 1)
Flexural strength 5.1 MPa Minimum ≥1,5 340 340 320 320 320 320 320 320 110 after 1 h at 150 °C ± 3 K not to be less than
50 % of the specified value
Charpy impact strength
2
kJ/m ≥5 50 33 50 50 50 50 50 50 130
5.4.2 Minimum
Conformance with the requirement for either
parallel to laminations
Charpy or Izod test constitutes conformance
Izod impact strength
2
with the specification in this respect
5.4.3 kJ/m Minimum 55 35 55 55 55 55 55 55 145
≥5
parallel to 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 parallel to 6.1 kV Minimum >3 35 35 35 35 35 35 35 35 55
laminations
Insulation resistance 4 4 3 3 3 3 3 3 2
6.3 MΩ Minimum All
1x10 5x10 5x10 5x10 5x10 5x10 5x10 5x10 1x10
after immersion in water
− − − − − − − − −
Proof tracking index 6.4 Minimum 500    500
The thermal endurance test is regarded as a
classification test for types EP GC 308, EP
− − − − − −
Thermal endurance 7.1 TI Minimum ≥3 180 180 180

GM 305 and EP GM 306. The test is not
normally regarded as a production control test
The small-scale laboratory test used in this
standard for assigning a flammability category
is primarily for monitoring consistency of
production of laminates. The results so
− − − − − − −
Flammability 7.2 Category 3   V-0 V-0
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
NOTE 1 For all EP GM types, compliance with this standard is not required for the outer 13 mm strip from the edges of the untrimmed sheets.
_
NOTE 2 A dash “ “ indicates that there is no requirement for this grade.

---------------------- Page: 14 ----------------------
60893-3-2  IEC:2003+A1:2011              – 13 –



Type
Nominal
thickness of
Test method in
Minimum
sheet to which
IEC 60893-2
Property Unit or Remarks
EP CC EP CP EP GC EP GC EP GC EP GC EP GC EP GC
test is
Maximum
Subclause
301 201 201 202 203 204 205 306
applicable
mm
a
 Flexural strength measured at
150 °C ± 3 K after 1 h at
a a a a
Flexural strength 5.1 MPa Minimum ≥1,5 135 110 340 340 340 340 340 340
150 °C ± 3 K not to be less than
50 % of the specified value
Charpy impact strength Conformance with the
5.4.2
or Izod impact strength requirements for either the Charpy
2
parallel to laminations or  kJ/m Minimum ≥5 6 -- 42 42 50 50 70 50 or Izod test constitutes, in this
respect, conformance with this
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 oil parallel to 6.1 kV Minimum >3 35 35 45 45 45 45 45 45
laminations


Insulation resistance
6.3 Minimum All
MΩ 3 4

after immersion in water 4 4 4 4 4 4
1×10 1×10 5×10 5×10 5×10 5×10 1×10 5×10
Proof tracking index 6.4 Minimum - - - - - - - 500
− −
Thermal endurance (TI) 7.1 - Minimum - - - - - - - -
≥3
The small-scale laboratory test
used in this standard for assigning
a flammability category is primarily
for monitoring consistency of
production of laminates. The
Cate-
− − − − −
Flammability 7.2 - 3  V-0  V-0  V-0  results so obtained should not in
gory
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
_
NOTE A dash “ “ indicates that there is no requirement for this grade.

---------------------- Page: 15 ----------------------
– 14 –             60893-3-2  IEC:2003+A1:2011


Table 5 (continued)
Nominal Type
Test method Maximum thickness of
Property in IEC 60893-2 Unit or sheet to which Remarks
EP GC EP GC EP GM EP GM EP GM EP GM EP GM EP GM EP
...