ASTM D1868-07

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Designation: D1868 − 07 AnAmerican National Standard
Standard Test Method for
Detection and Measurement of Partial Discharge (Corona)
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Pulses in Evaluation of Insulation Systems
This standard is issued under the fixed designation D1868; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 2. Referenced Documents
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1.1 This test method covers the detection and measurement 2.1 ASTM Standards:
of partial discharge (corona) pulses at the terminals of an D149Test Method for Dielectric Breakdown Voltage and
insulation system under an applied test voltage, including the DielectricStrengthofSolidElectricalInsulatingMaterials
determination of partial discharge (corona) inception and at Commercial Power Frequencies
extinction voltages as the test voltage is raised and lowered. D618Practice for Conditioning Plastics for Testing
Thetestmethodisalsousefulindeterminingquantitiessuchas D2275Test Method for Voltage Endurance of Solid Electri-
apparent charge and pulse repetition rate together with such cal Insulating Materials Subjected to Partial Discharges
integrated quantities as average current, quadratic rate and (Corona) on the Surface
power. The test method is useful for test voltages ranging in D3382Test Methods for Measurement of Energy and Inte-
frequency from zero (direct voltage) to approximately 2000 grated Charge Transfer Due to Partial Discharges (Co-
Hz. rona) Using Bridge Techniques
2.2 Other Documents:
1.2 The test method is directly applicable to a simple
AEIC CS5-87Specifications for Thermoplastic and Cross-
insulation system that can be represented as a two-terminal
linked Polyethlene Insulated Shielded Power Cables
capacitor (1), (2) .
th 4
Rated 5 through 35 kV (9 Edition) October 1987
1.3 Thetestmethodisalsoapplicableto(distributedparam-
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ICEAT-24-380Guide for Partial Discharge Procedure
eter) insulation systems such as high-voltage cable. Consider-
IEEE 48Standard Test Procedures and Requirements for
ationmustbegiventoattenuationandreflectionphenomenain
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High Voltage Alternating Current Cable Terminations
this type of system. Further information on distributed param-
IEEE 1434-2005Guide to the Measurement of Partial Dis-
etersystemsofcables,transformers,androtatingmachineswill
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charges in Rotating Machinery
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be found in Refs. (1), (2), (3), (4), (5), (6), (7), (8), and (9).
IEEE C57 113-1991Guide for PD Measurement in Liquid-
(SeeAEICCS5-87,IEEEC57113-1991,IEEEC57124-1991,
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Filled Power Transformers and Shunt Reactors
and IEEE 1434-2005.)
IEEE C57 124-1991Recommended Practice for the Detec-
1.4 The test method can be applied to multi-terminal insu-
tion of PD and the Measurement of Apparent Charge in
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lation systems, but at some loss in accuracy, especially where
Dry-Type Transformers
the insulation of inductive windings is involved.
1.5 This standard does not purport to address all of the
3. Terminology
safety problems, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.1 Definitions:
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.Specificprecaution
statements are given in Sections 8 and 14. 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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This test method is under the jurisdiction of ASTM Committee D09 on the ASTM website.
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Electrical and Electronic Insulating Materials and is the direct responsibility of Available from the publication department of the Association of Edison
Subcommittee D09.12 on Electrical Tests. Illuminating Companies, 600 N. 18th St., PO Box 2641, Birmingham, AL
Current edition approved May 1, 2007. Published August 2007. Originally 35291-0992.
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approved in 1961. Last previous edition approved in 1998 as D1868–93(1998). Available from the Insulated Cable Engineers Association, Inc., PO Box 440,
DOI: 10.1520/D1868-07. South Yarmouth, MA 02664.
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Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
this test method. 445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331, http://www.ieee.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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