1 Scope
This part of GB/T 5019 specifies the methods of test which are applicable to built-up mica materials, products based on them and mica paper.
This part is applicable to insulating materials for electrical equipment, consisting of built-up mica or mica paper with or without reinforcing material bonded together, and applicable to mica paper.
2 Normative References
The following clauses contain provisions which, through reference in this part of GB/T 5019, constitute provisions of this part. For dated references, all subsequent modifications or revisions (excluding correction contents) are not applicable to this part. However, all concerned Parties are encouraged to study if the latest editions of these documents can be applied. For undated references, the latest edition of the normative document is applicable to this standard.
Contents
Foreword i
1 Scope
2 Normative References
3 General Requirements for Test
4 Preparation Methods of Test Specimens for Curable Materials
5 Thickness
6 Calculated Density
7 Apparent Density
8 Composition
9 Heating Loss
10 Tension Strength and Elongation at Break
11 Flexural Strength and Elastic Modulus in Bend
12 Folding
13 Stiffness
14 Resistance to Exudation and Displacement
15 Elastic Compression and Plastic Compression
16 Resin flow and Consolidation
17 Gel Time
18 Softness
19 Edge Flexibility
20 Aliquation Rate
21 Plasticity
22 Electric Strength
23 Dissipation Factor/Temperature Characteristics at Frequencies of Between 48 Hz and 62 Hz
24 Dissipation Factor/Voltage Characteristics at Frequencies of Between 48 Hz and 62 Hz
25 Volume Resistivity
26 High Temperature Insulation Resistance
27 Detection of Defects and Conductive Particles
28 Penetration
29 Thermal Endurance
Annex A
(Normative)
Comparison on Chapter and Section Numbers of This part and IEC 60371-2:2004
Annex B
(Informative)
Technical Differences between This Part and IEC 60371-2: 2004 and The Reasons
