D924-99e1
Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity
(Dielectric Constant) of Electrical Insulating Liquids

1.1 This test method covers new electrical insulating liquids as well as liquids in service or subsequent to service in cables, transformers, oil circuit breakers, and other electrical apparatus.

1.2 This test method provides a procedure for making referee tests at a commercial frequency of approximately 60 Hz.

1.3 Where it is desired to make routine determinations requiring less accuracy, certain modifications to this test method are permitted as described in Sections 17 to 25.

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