IEC 60893-3-2:2003/AMD1:2011

Amendment 1 - 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

Amendement 1 - 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

General Information

• Status: Published
• Publication Date: 26-May-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: TC 15 - Solid electrical insulating materials
• Drafting Committee: WG 6 - TC 15/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 15-Sep-2011
• Completion Date: 27-May-2011

Relations

• Amends: IEC 60893-3-2:2003 - 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
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60893-3-2
®

Edition 2.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1


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 2.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1


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
INTERNATIONALE PRICE CODE
J
CODE PRIX
ICS 29.035.01 ISBN 978-2-88912-529-6

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

---------------------- Page: 3 ----------------------
– 2 – 60893-3-2 Amend. 1  IEC:2011
FOREWORD
This amendment 1 of IEC 60893-3-2 has been prepared by IEC technical committee 15: Solid
electrical insulating materials.
This 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.
The text of this amendment is based on the following documents:
CDV Report on voting
15/505/CDV 15/632/RVC
15/540/CDV 15/592A/RVC

Full information on the voting for the approval of this standard can be found in the reports on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication 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.

_____________

2 Normative references
Add the following references to the existing list:
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
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

---------------------- Page: 4 ----------------------
60893-3-2 Amend. 1  IEC:2011 – 3 –
Table 1 – Types of industrial rigid laminated sheets based on epoxy resins
Below type designation EP GC 308, add the following new designations:

EP GC 309 Similar to EP GC 201, but with defined mechanical strength
at elevated temperature
310 Similar to EP GC 202, but with halogen free compound
311 Similar to EP GC 204, but with halogen free compound

Below Table 1, add the following text to the notes:
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.

Table 2 – Tolerances on thickness
th
In the heading of the 4 column (EP GC), add 309, 310, 311.

---------------------- Page: 5 ----------------------
– 4 –        60893-3-2 Amend. 1 IEC:2011


Replace the existing Table 5 with the following new Table 5:
Table 5 – Property requirements
Type
Nominal
thickness of
Test method in
Minimum
sheet to
IEC 60893-2
Property Unit or Remarks
EP CC EP CP EP GC EP GC EP GC EP GC EP GC EP GC
which test is
Maximum
Subclause 301 201 201 202 203 204 205 306
applicable
mm
a
Flexural strength measured at 150 °C ± 3 K
a a a a
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 strength 5.4.2
Conformance with the requirements for either
or Izod impact strength
2
or  kJ/m Minimum ≥5 6 -- 42 42 50 50 70 50 the Charpy or Izod test constitutes, in this
parallel to laminations
respect, conformance with this specification.
5.4.3
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


after immersion in 6.3 MΩ Minimum All 3 4

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

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
Cate- production of laminates. The results so
− − − − −
Flammability 7.2 - 3  V-0  V-0  V-0
gory 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 A dash “ “ indicates that there is no requirement for this grade.

---------------------- Page: 6 ----------------------
60893-3-2 Amend. 1 IEC:2011       – 5 –


Table 5 (continued)
Nominal Type
thickness of
Test method Maximum
sheet to which
Property in IEC 60893-2 Remarks
Unit or
test is EP GC EP GC EP GM EP GM EP GM EP GM EP GM EP GM EP PC
Subclause Minimum
applicable 307 308 201 202 203 204 305 306 301
mm
a
Flexural strength measured at 150 °C ± 3 K
a a a a a a
Flexural strength 5.1 MPa Minimum ≥1,5 340 340 320 320 320 320 320 320 140 after 1 h at 150 °C ± 3 K not to be less than
50 % of the specified value
5.4.2
Charpy impact strength Conformance with the requirement for either
2
or Izod impact strength or kJ/m Minimum ≥5 70 50 50 50 50 50 50 50 55 Charpy or Izod test constitutes conformance
parallel to laminations with the specification in this respect.
5.4.3
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 45 45 35 35 35 35 35 35 45
>3
laminations
Insulation resistance
4 4 3 3 3 3 3 3 2
after immersion in 6.3 MΩ Minimum All
1×10 5×10 5×10 5×10 5×10 5×10 5×10 5×10 1×10
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 (TI) 7.1 - 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: 7 ----------------------
– 6 –        60893-3-2 Amend. 1 IEC:2011


In Table 5 (continued), add the following columns behind EP GC 308:
Table 5 (continued)
Nominal Type Remarks
Test thickness of
Maximum
EP GC 309 EP GC 310 EP GC 311
method in sheet to which
Property Unit or
IEC 60893-2 test is
Minimum
Subclause applicable
mm
a

Flexural strength measured at 130 °C ± 3 K after 1 h at 130 °C ± 3 K not to be less
than 50 % of the specified value
a a b
b

Flexural strength 5.1 MPa Minimum 340 340 340
≥1,5 Flexural strength measured at 150 °C ± 3 K after 1 h at 150 °C ± 3 K not to be less
than 50 % of the specified value

5.4.2
Charpy impact strength
Conformance with the requirement for either Charpy or Izod test constitutes
2
42 42 50
or Izod impact strength or kJ/m Minimum ≥5
conformance with the specification in this respect.
parallel to laminations
5.4.3
Electric strength at
90 °C in oil
6.1 kV/mm Minimum See Table 6
≤3
perpendicular to
laminations
Breakdown voltage at
90 °C in oil parallel to 6.1 kV Minimum >3 45 45 45
laminations
Insulation resistance
4 4 4
6.3 Minimum All
after immersion in MΩ 5×10 5×10 5×10
water
− −
Proof tracking index 6.4 Minimum - - -
The thermal endurance test is regarded as a classification test for types EP GC 308,
Thermal endurance 7.1 TI Minimum ≥3 - - - EP 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 obtained should not in any circumstances be considered as an overall indication of
Catego- c c
−
Flammability 7.2 3
V-0  V-0 the potential fire hazards presented by these laminates under actual conditions of use.
ry
c
The compound must be free of halogens.


Water absorption 8.2 mg Maximum All See Table 7
_
NOTE A dash “ “ indicates that there is no requirement for this grade.

---------------------- Page: 8 ----------------------
60893-3-2 Amend. 1 IEC:2011       – 7 –


Replace the existing Table 6 by the following new Table 6:
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 specimens
Type
mm
0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,2 1,4 1,5 1,8 2,0 2,2 2,4 2,5 2,6 2,8 3,0
EP CC 301 - - - - 10,0 9,6 9,2 8,6 8,2 8,0 7,4 7,1 6,8 6,5 6,4 6,2 5,6 5,0
EP CP 201 19,0 18,2 17,6 17,1 16,6 16,2 15,8 15,2 14,7 14,5 13,9 13,6 13,4 13,3 13,3 13,2 13,0 13,0
EP GC 201 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 202 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 203 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 204 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 205 − − − − − − − − − − − − − − − − − 9,0
EP GC 306 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 307 9,0
− − − − − − − − − − − − − − − − −
EP GC 308 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 309 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 310 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GC 311 16,9 16,1 15,6 15,2 14,8 14,5 14,2 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2
EP GM 201 12,3 12,0 11,0 10,5 10,0 9,8 9,6 9,4 9,2 9,0
− − − − − − − −
EP GM 202 − − − − − − − − 12,3 12,0 11,0 10,5 10,0 9,8 9,6 9,4 9,2 9,0
EP GM 203 − − − − − − − − 12,3 12,0 11,0 10,5 10,0 9,8 9,6 9,4 9,2 9,0
EP GM 204 − − − − − − − − 12,3 12,0 11,0 10,5 10,0 9,8 9,6 9,4 9,2 9,0
EP GM 305 − − − − − − − − 12,3 12,0 11,0 10,5 10,0 9,8 9,6 9,4 9,2 9,0
EP GM 306 − − − − − − − − 12,3 12,0 11,0 10,5 10,0 9,8 9,6 9,4 9,2 9,0
EP PC 301 − − − − − − − 13,7 13,2 13,0 12,2 11,8 11,4 11,1 10,9 10,8 10,5 10,2

---------------------- Page: 9 ----------------------
– 8 –        60893-3-2 Amend. 1 IEC:2011



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.

---------------------- Page: 10 ----------------------
60893-3-2 Amend. 1 IEC:2011       – 9 –


Replace the existing Table 7 by the following new Table 7:
Table 7 – Limits for water absorption (mg)
a
Mean measured thickness of test specimens
mm
Type
b
0,4 0,5 0,6 0,8 1,0 1,2 1,5 2,0 2,5 3,0
...