BS 4999-147:1988
General requirements for rotating electrical machines, Specification for dimensions of brushes and brush-holders for electrical machinery
Specifies the principal and complementary dimensions of brushes and brush-holders, limits and tolerances of principal dimensions and recommended combinations and preferred dimensions of brushes. Also current capacity, terminal types and sizes and details of brush-holders.
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BS 4727-1:Group 07:1991
Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Terms common to power, telecommunications and electronics, Magnetic materials and components
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BS 5347:1976
Specification for silicon-iron strip-wound cores for use in transformers and inductors for telecommunications and electronic equipment
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BS 5935:1980
Specification for toroidal strip-wound cores made of magnetically soft material
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BS 5938-1:1984
Cores for inductors and transformers for telecommunications, Methods of measurement