ASTM D 877/D877M : 2013

Name: ASTM D 877/D877M : 2013
Brand: ASTM
Price: 75.00 USD

Superseded

View Superseded by

Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes

Available format(s)

Hardcopy , PDF

Superseded date

02-18-2020

Language(s)

English

Published date

12-01-2013

Publisher

American Society for Testing and Materials

This test method describes two procedures, A and B, for determining the electrical breakdown voltage of insulating liquid specimens. The breakdown test uses ac voltage in the power-frequency range from 45 to 65 Hz.

1.1This test method describes two procedures, A and B, for determining the electrical breakdown voltage of insulating liquid specimens. The breakdown test uses ac voltage in the power-frequency range from 45 to 65 Hz.

1.2This test method is used to judge if the disk electrode breakdown voltage requirements are met for insulating liquids, as delivered from the manufacturer, that have never been filtered or dried. See Specification D3487, Specification D4652, Specification D6871 and Guide D5222 for the minimum specified electrical breakdown. This test method should be used as recommended by professional organization standards such as IEEE C57.106.

1.3Limitations of the Procedures:

1.3.1The sensitivity of this test method to the general population of contaminants present in a liquid sample decreases as applied test voltages used in this test method become greater than approximately 25 kV rms.

1.3.2If the concentration of water in the sample at room temperature is less than 60 % of saturation, the sensitivity of this test method to the presence of water is decreased. For further information refer to RR:D27-1006.²

1.3.3The suitability for this test method has not been determined for a liquid's viscosity higher than 900 cSt at 40°C.

1.4Procedure Applications

1.4.1Procedure A:

1.4.1.1Procedure A is used to determine the breakdown voltage of liquids in which any insoluble breakdown products easily settle during the interval between the required repeated breakdown tests. These liquids include petroleum oils, hydrocarbons, natural and synthetic esters, and askarels (PCB) used as insulating and cooling liquids in transformers, cables, and similar apparatus.

1.4.1.2Procedure A may be used to obtain the dielectric breakdown of silicone fluid as specified in Test Methods D2225, provided the discharge energy into the sample is less than 20 mJ (milli joule) per breakdown for five consecutive breakdowns.

1.4.2Procedure B:

1.4.2.1This procedure is used to determine the breakdown voltage of liquids in which any insoluble breakdown products do not completely settle from the space between the disks during the 1–min interval required in Procedure A. Procedure B, modified in accordance with Section 17 of Test Methods D2225, is acceptable for testing silicone dielectric liquids if the requirements of 1.4.1.2 can not be achieved.

1.4.2.2Procedure B should also be applied for the determination of the breakdown voltage of liquid samples containing insoluble materials that settle from the specimen during testing. These may include samples taken from circuit breakers, load tap changers, and other liquids heavily contaminated with insoluble particulate material. These examples represent samples that may have large differences between replicate tests. The use of Procedure B will result in a more accurate value of breakdown voltage when testing such liquids.

1.4.2.3Use Procedure B to establish the breakdown voltage of an insulating liquid where an ASTM specification does not exist or when developing a value for an ASTM guide or standard. Procedure A may be used once the single operator precision of 13.1 has been demonstrated.

1.5The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee	D 27
DocumentType	Test Method
Pages	6
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 877/D877M : 2019
Supersedes	ASTM D 877 : 2002 : R2007

ASTM D 2864 : 2009	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 4652 : 2005	Standard Specification for Silicone Fluid Used for Electrical Insulation
ASTM D 6871 : 2003 : R2008	Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus (Withdrawn 2017)
ASTM D 3487 : 2016	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 5222 : 2016	Standard Specification for High Fire-Point Mineral Electrical Insulating Oils
ASTM D 2864 : 2017 : REV A	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 4652 : 2005 : R2012	Standard Specification for Silicone Fluid Used for Electrical Insulation
ASTM D 4652 : 1992 : R1997	Standard Specification for Silicone Fluid Used for Electrical Insulation
ASTM D 2225 : 2004	Standard Test Methods for Silicone Fluids Used for Electrical Insulation
ASTM D 5222 : 2008	Standard Specification for High Fire-Point Mineral Electrical Insulating Oils
ASTM D 1816 : 2003	Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
ASTM D 2864 : 2006	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 3487 : 2000	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 2225 : 2004 : R2012	Standard Test Methods for Silicone Fluids Used for Electrical Insulation
ASTM D 1816 : 2012(R2019)	Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes
ASTM D 2864 : 2010	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 2864 : 2002	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 2864 : 2000 : REV A	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 5222 : 2000	Standard Specification for High Fire-Point Mineral Electrical Insulating Oils
ASTM D 3487 : 2008	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 1816 : 2004	Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
ASTM D 3487 : 2009	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 6871 : 2017	Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus
ASTM D 3487 : 2000 : R2006	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 6871 : 2003	Standard Specification for Natural (Vegetable Oil) Ester Fluids Used in Electrical Apparatus
ASTM D 2225 : 1992 : R1997	Standard Test Methods for Silicone Fluids Used for Electrical Insulation
ASTM D 2864 : 2010 : EDT 1	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 3487 : 1988 : R1993	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 3487 : 2016 : EDT 1	Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ASTM D 2864 : 2019	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 2864 : 2007	Standard Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D 1816 : 1997	Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
ASTM D 1816 : 2012	Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes
ASTM D 2864 : 2017	Standard Terminology Relating to Electrical Insulating Liquids and Gases