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BS 6236-2:1988

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

View Superseded by
withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Electrical insulating materials based on mica Methods of test
Available format(s)

Hardcopy , PDF

Withdrawn date

26-10-2018

Language(s)

English

Published date

31-05-1988

National foreword
Committees responsible
Methods
Introduction
1 Scope
2 Preparation of test specimens for curable materials
3 Thickness
4 Density
5 Apparent density
6 Composition
7 Tensile strength and elongation at break
8 Flexural strength and elastic modulus in bend
9 Folding
10 Stiffness
11 Resistance to exudation and displacement
12 Elastic compression and plastic compression
13 Resin flow and consolidation
14 Gel time
15 Electric strength
16 Dissipation factor/temperature characteristics at
    frequencies of between 48 Hz and 62 Hz
17 Dissipation factor/voltage characteristics at
    frequencies of between 48 Hz and 62 Hz
18 Detection of defects and conductive particles
19 Penetration
20 Thermal endurance
Figures
1 Assembly of stacks for preparing test laminates
2 Conditions for press procedure
3 Apparatus for measurement of stiffness
4 Apparatus for measurement of stiffness
5 Elastic compression, plastic compression
6 Standard Williams type penetrometer

Tests which are applicable to built-up mica materials, products based on them and mica paper.

Committee
GEL/15
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Withdrawn
SupersededBy

Standards Relationship
IEC 60371-2:2004 Identical

BS EN 60371-3-3:1995 Specification for insulating materials based on mica. Specifications for individual materials Specification for rigid mica materials for heating equipment

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
IEC 60243:1967 Recommended methods of test for electric strength of solid insulating materials at power frequencies
IEC 60371-3-1:2006 Specification for insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 1: Commutator separators and materials
BS 2782-3 Method 335A:1978 Methods of testing plastics. Mechanical properties Determination of flexural properties of rigid plastics
IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results

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£198.00
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