This document applies to carbon brushes for electrical machinery. For the present@ it applies only to carbon brushes for commutators and slip-rings in rotating machines. Terms and definitions are relative to the brush construction (references 100??s to 500??s and parts of 900??s) and to the markings when operating on a rotating machine (references 600??s to 800??s). By extension@ terms and definitions may be relevant for any kind of sliding electrical contacts for electrical machinery.
IEC 60276:2018 history
2018IEC 60276:2018 Carbon brushes, brush holders, commutators and slip-rings - Definitions and nomenclature
1987IEC 60276:1968/AMD1:1987 Definitions and nomenclature for carbon brushes, brush-holders, commutators and slip-rings
1968IEC 60276:1968 Definitions and nomenclature for carbon brushes, brush-holders, commutators and slip-rings