Considerations for corona test specifications

The present requirements for establishing standard corona tests may be divided essentially into the following categories: 1. To establish a realistic test procedure for differentiating relatively among electrical insulating materials with regard to their ability to resist the direct action and by products of corona. 2. To establish standard corona measuring and calibrating circuits and to define the quantities which may be measured with such equipment. 3. To establish a test procedure and measurements which indicate the severity of corona in electrical components and equipment and which relates corona to life tests.