IEC PAS 62072:2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Natural graphite brush for rotating electrical machinery - Basic characteristics
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
07-02-2009
English
01-17-2005
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Characteristics
5.1 Physical properties
5.1.1 Bulk density
5.1.2 Hardness
5.1.3 Resistivity
5.1.4 Bending strength
5.1.5 Ash
5.2 Operating characteristics
5.2.1 Total voltage drop
5.2.2 Coefficient of friction
5.3 Recommended operating conditions
5.3.1 Peripheral velocity
5.3.2 Current density
5.3.3 Brush pressure
6 Test methods
Annex A (informative) Measurements and performance characteristics
Annex B (informative) Manufacture process of the different brushes
Annex C (informative) Comparison of physical properties
Annex D (informative) Environmental pollution
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