1 Scope
This part of GB/T 5169 specifies the ball pressure test as a method for testing parts of non-metallic materials for resistance to heat.
It is applicable to electrotechnical equipment, its subassemblies and components, and to solidelectrical insulating materials except ceramics.
2 Normative References
The following standards contain provisions which, through reference in this part, constitute provisions of this part. For dated reference, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 11026.4-1999 Guide for the Determination of Thermal Endurance Properties of Electrical Insulating MaterialsPart 4: Ageing Ovens-Single-chamber Ovens (idt IEC 60216-4-1:1990)
IEC Guide104:1997 The Preparation of Safety Publications and The Use of Basic SafetyPublications and Group Safety Publications
ISO3290:2001 Rolling Bearings - Balls - Dimensions and Tolerances
3 General Description of the Test
Foreword I
1 Scope
2 Normative References
3 General Description of the Test
4 Test Apparatus
5 Test Specimens
6 Conditioning
7 Test Procedure
8 Observations and Measurements
9 Expression of Test Results
10 Information to be Given in the Relevant Specification
