Dimensions, marking and testing of carbon brushes and dimensions of brush-holders for electrical machinery
Dimensions, marking and testing of carbon brushes and dimensions of brush-holders for electrical machinery
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1 Scope This document applies primarily to brushes and brush-holders for cylindrical commutators and slip rings for electrical rotating machines. Some clauses of this document may cover other configurations, such as flat commutators or plain disks. It defines the dimensions of brushes and their components , together with their tolerances:
— dimensions of brush block ( t , a , r ),
— angles α and β ,
— chamfer,
— flexibles (shunts),
— standard terminals.
It also covers the conventional designation of principal dimensions, the marking of brushes and the testing methods for the qualification of brushes after their manufacturing (except the brush grade material, covered by IEC 60413). And finally, it specifies dimensions of the brush-holders that are linked to brushes.
Упомянутые в описании и другие стандарты BS