BS 9720:1989 - Specification for custom-built transformers and inductors of assessed quality: generic data and methods of test
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This British Standard specifies the requirements that
manufacturers of custom-built transformers and inductors
need to comply with in order to achieve and maintain
capability approval to BS 9000, and the component test
schedules to be used for the assessment of that capability.
It applies to components, including polyphase types, that
are primarily intended for use in electronic equipment.
This standard also specifies marking requirements and
related symbols and terminology; and describes the
methods of test for transformers and inductors that are
required by the relevant sectional specifications (which
contain the customer's blank detail specification), and
the schedules for the assessment and maintenance of
capability.
