1.1 This test method covers the determination of the dielectric breakdown voltage of insulating liquids (oils of petroleum origin, silicone fluids, high fire-point mineral electrical insulating oils, synthetic ester fluids and natural ester fluids). This test method is applicable to insulating liquids commonly used in cables, transformers, oil circuit breakers, and similar apparatus as an insulating and cooling medium. Refer to Terminology D2864 for definitions used in this test method.
1.2 This test method is sensitive to the deleterious effects of moisture in solution especially when cellulosic fibers are present in the liquid. It has been found to be especially useful in diagnostic and laboratory investigations of the dielectric breakdown strength of insulating liquid in insulating systems.2
1.3 This test method is used to judge if the VDE electrode breakdown voltage requirements are met for insulating liquids. This test method should be used as recommended by professional organization standards such as IEEE C57.106.
1.4 This test method may be used to obtain the dielectric breakdown of silicone fluid as specified in Test Method D2225 and Specification D4652, provided that the discharge energy into the sample is less than 20 mJ (milli joule) per breakdown for five consecutive breakdowns.
1.5 Both the metric and the alternative inch-pound units are acceptable.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility ......
ASTM D1816-12 Referenced Document
ASTM D2225 Standard Test Methods for Silicone Fluids Used for Electrical Insulation
ASTM D235 Standard Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
ASTM D2864 Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D3487 Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D4652 Standard Specification for Silicone Fluid Used for Electrical Insulation
ASTM D6871 Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus
ASTM D923 Standard Practices for Sampling Electrical Insulating Liquids
ASTM D1816-12 history
2019ASTM D1816-12(2019) Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes
2012ASTM D1816-12 Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes
2004ASTM D1816-04 Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
2003ASTM D1816-03 Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
1997ASTM D1816-97 Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes