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EN 60371-2:2004

Current

Current

The latest, up-to-date edition.

Specification for insulating materials based on mica - Part 2: Methods of test

Published date

11-03-2004

Foreword
Introduction
1 Scope
2 Normative references
3 Preparation methods of test specimens for curable
   materials
   3.1 General
   3.2 Method 1
   3.3 Method 2
4 Thickness
   4.1 Test apparatus
   4.2 Test specimen
   4.3 Procedure
   4.4 Statement of results
5 Density
6 Calculated density
7 Composition
   7.1 Test specimen
   7.2 Mass per unit area in the "as received" condition
   7.3 Content of volatiles and mass per unit area of dried
        material
   7.4 Binder content
   7.5 Mass per unit area of reinforcement material (m'[r])
   7.6 Mica content
   7.7 Size of splittings
8 Tensile strength and elongation at break
   8.1 Test apparatus
   8.2 Test specimen
   8.3 Procedure
   8.4 Statement of results
9 Flexural strength and elastic modulus in bend
   9.1 Test specimen
   9.2 Procedure
10 Folding
11 Stiffness
   11.1 Conditioning and test atmosphere
   11.2 Test specimens
   11.3 Procedure
   11.4 Statement of results
12 Resistance to exudation and displacement
   12.1 Test apparatus
   12.2 Test specimen
   12.3 Procedure
   12.4 Statement of results
13 Elastic compression and plastic compression
   13.1 Test apparatus
   13.2 Test specimen
   13.3 Procedure
   13.4 Statement of results
14 Resin flow and consolidation
   14.1 Test specimen
   14.2 Procedure
   14.3 Statement of results
15 Gel time
16 Electric strength
   16.1 Electrodes
   16.2 Test specimen
   16.3 Procedure
   16.4 Statement of results
17 Dissipation factor/temperature characteristics at
   frequencies of between 48 Hz and 62 Hz
   17.1 Test specimen
   17.2 Test conditions
   17.3 Electrodes
   17.4 Procedure
   17.5 Statement of results
18 Dissipation factor/voltage characteristics at frequencies
   of between 48 Hz and 62 Hz
   18.1 Test specimen
   18.2 Test conditions
   18.3 Electrodes
   18.4 Procedure
   18.5 Statement of results
19 Detection of defects and conductive particles
20 Penetration
   20.1 Test apparatus
   20.3 Test specimens
   20.3 Method of test
   20.4 Statement of results
21 Thermal endurance
Annex A (normative)
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Defines the methods of test which are applicable to built-up mica materials, products based on them and mica paper. The main changes from the previous edition are as follows: a) All clauses re-numbered. b) Relevant template of ISO 67 has been added to this standard as Annex A. c) Clause 8: Tensile strength and elongation at break Procedure modified to give rate of movement instead of time limit. Different rate of movement for raw mica as opposed to reinforced and/or impregnated mica. d) Clause 11: Stiffness Size of test specimen revised. Wording modified so that standard covers materials using carriers other than woven glass cloth and materials that are 3-ply. Revision of terms machine direction and transverse direction. (These were incorrect in second edition (1987).) e) Clause 13: Elastic compression and plastic compression Tolerance on measurement of height of stack changed to within 0,01 mm. Times for change in pressure in procedure changed to 1 min. f) Clause 16: Electric strength Modified in line with Amendment 1 (1994) to the second edition (1987). Changes relate to latest edition of EN 60243-1. g) Clause 19: Detection of defects and conductive particles Revised subclause.

Committee
CLC/SR 15
DevelopmentNote
Supersedes HD 352.2. (05/2001) Supersedes UNE EN 60371-2. (09/2007)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

BS EN 60371-3-1:2006 Specification for insulating materials based on mica Specifications for individual materials - Commutator separators and materials
BS EN 60371-3-7:1996 Specification for insulating materials based on mica Specifications for individual materials - Polyester film mica paper with an epoxy resin binder for single conductor taping
BS EN 60371-3-5:2006 Insulating materials based on mica Specifications for individual materials - Glass-backed mica paper with an epoxy resin binder for post-impregnation (VPI)
I.S. EN 60371-3-6:1998 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 6: GLASS-BACKED MICA PAPER WITH A B-STAGE EPOXY RESIN BINDER
BS EN 60371-3-2:2006 Insulating materials based on mica Specifications for individual materials - Mica paper
EN 60371-3-4:1995/A1:2006 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 4: POLYESTER FILM-BACKED MICA PAPER WITH A B-STAGE EPOXY RESIN BINDER
EN 60371-3-7:1995/A1:2006 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 7: POLYESTER FILM MICA PAPER WITH AN EPOXY RESIN BINDER FOR SINGLE CONDUCTOR TAPING
EN 60371-3-6:1995/A1:2006 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 6: GLASS-BACKED MICA PAPER WITH A B-STAGE EPOXY RESIN BINDER
BS EN 60371-3-9:1996 Insulating materials based on mica Specifications for individual materials - Moulding micanite
CEI EN 60371-3-1 : 2007 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 1: COMMUTATOR SEPARATORS AND MATERIALS
CEI EN 60371-3-2 : 2006 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 2: MICA PAPER
BS EN 60371-3-4:1996 Specification for insulating materials based on mica Specifications for individual materials - Polyester film-backed mica paper with a B-stage epoxy resin binder
I.S. EN 60371-3-5:2006 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 5: GLASS-BACKED MICA PAPER WITH AN EPOXY RESIN BINDER FOR POST-IMPREGNATION (VPI)
I.S. EN 60371-3-1:2006 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 1: COMMUTATOR SEPARATORS AND MATERIALS
I.S. EN 60371-3-7:1999 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 7: POLYESTER FILM MICA PAPER WITH AN EPOXY RESIN BINDER FOR SINGLE CONDUCTOR TAPING
I.S. EN 60371-3-2:2006 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 2: MICA PAPER
I.S. EN 60371-3-4:1998 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 4: POLYESTER FILM-BACKED MICA PAPER WITH A B-STAGE EPOXY RESIN BINDER
BS EN 60371-3-8:1996 Insulating materials based on mica Specifications for individual materials - Mica paper tapes for flame-resistant security cables
BS EN 60371-3-6:1996 Specification for insulating materials based on mica Specifications for individual materials - Gloss-backed mica paper with a B-stage epoxy resin binder
EN 60371-3-2:2006/corrigendum:2006 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 2: MICA PAPER
EN 60371-3-5 : 2006 COR 2006 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 5: GLASS-BACKED MICA PAPER WITH AN EPOXY RESIN BINDER FOR POST-IMPREGNATION (VPI)
CEI EN 60371-3-5 : 2006 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 5: GLASS-BACKED MICA PAPER WITH AN EPOXY RESIN BINDER FOR POST-IMPREGNATION (VPI)
I.S. EN 60371-3-9:1999 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 9: MOULDING MICANITE
EN 60371-3-8:1995/A1:2007 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 8: MICA PAPER TAPES FOR FLAME-RESISTANT SECURITY CABLES
EN 60371-3-1:2006 Specification for insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 1: Commutator separators and materials
EN 60371-3-9 : 1995 AMD 1 2007 INSULATING MATERIALS BASED ON MICA - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 9: MOULDING MICANITE

IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
IEC 60250:1969 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths
EN ISO 178:2010/A1:2013 PLASTICS - DETERMINATION OF FLEXURAL PROPERTIES (ISO 178:2010/AMD 1:2013)
EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013)
ISO 178:2010 Plastics Determination of flexural properties

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