Standard Terminology Relating to Electrical Insulation

SCOPE
1.1 This terminology is a compilation of technical terms used in conjunction with testing and specifying solid electrical and electronic insulating materials in standards under the jurisdiction of Committee D09 on Electrical and Electronic Insulating Materials.
1.2 It is intended that all definitions in this terminology are identical to definitions of the same terms as printed in standards of originating technical subcommittees, with the exceptions of: (1) deletion of any part of the Discussion included in another standard that refers specifically to the use of a term in that standard; (2) figure numbers and corresponding references; and (3) in this terminology, a parenthetical addition of a reference to one or more technical standards in which the term is used and the year in which the term was added to this compilation.
1.3 It is permissible to include symbols as part of the representation of terms, where appropriate.
1.4 It is not intended that this terminology include descriptions of terms or symbols (except as noted in 1.3). It is also permissible to include acronyms and abbreviations referring directly to defined terms.
1.5 Revisions and additions to the definitions in this terminology are to be made as a product of a collaborative effort between Subcommittee D09.94 and the various technical subcommittees of Committee D09, with Subcommittee D09.94 providing editorial advice to the technical subcommittees. New definitions and revisions of existing definitions must first be approved by the cognizant technical subcommittee (or subcommittees) before inclusion in this terminology.

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Status
Historical
Publication Date
30-Apr-2008
Current Stage
Ref Project

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:D1711–08
Standard Terminology Relating to
1
Electrical Insulation
This standard is issued under the fixed designation D1711; 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.
INTRODUCTION
This terminology is used in connection with testing and specifying solid electrical insulating
materials. Modifications to this terminology, reflecting common usage, may appear in particular test
methods, material specifications, practices, or other standards. Included herein are terms pertinent to
general applications, electrical insulating papers, mica, mica processing, processed mica forms,
hookup wire insulation, and partial discharge (corona).
1. Scope* 2. Referenced Documents
2
1.1 This terminology is a compilation of technical terms 2.1 ASTM Standards:
used in conjunction with testing and specifying solid electrical D149 Test Method for Dielectric Breakdown Voltage and
and electronic insulating materials in standards under the Dielectric Strength of Solid Electrical Insulating Materials
jurisdiction of Committee D09 on Electrical and Electronic at Commercial Power Frequencies
Insulating Materials. D150 Test Methods for AC Loss Characteristics and Per-
1.2 Itisintendedthatalldefinitionsinthisterminologyare mittivity (Dielectric Constant) of Solid Electrical Insula-
identicaltodefinitionsofthesametermsasprintedinstandards tion
oforiginatingtechnicalsubcommittees,withtheexceptionsof: D3426 Test Method for Dielectric Breakdown Voltage and
(1) deletion of any part of the Discussion included in another Dielectric Strength of Solid Electrical Insulating Materials
standard that refers specifically to the use of a term in that Using Impulse Waves
standard;(2)figurenumbersandcorrespondingreferences;and D3636 Practice for Sampling and Judging Quality of Solid
(3) in this terminology, a parenthetical addition of a reference Electrical Insulating Materials
to one or more technical standards in which the term is used 2.2 Other Standards:
3
and the year in which the term was added to this compilation. ANSI/ASQC A2-1987
1.3 It is permissible to include symbols as part of the
3. Terminology
representation of terms, where appropriate.
1.4 It is not intended that this terminology include descrip-
acceptable quality level (AQL), n—the maximum percent
tions of terms or symbols (except as noted in 1.3). It is also
nonconforming which, for purposes of sampling inspection,
permissible to include acronyms and abbreviations referring
is considered satisfactory as a process average.
directly to defined terms.
acceptance number, n—the maximum allowable number of
1.5 Revisions and additions to the definitions in this termi-
nonconformities for a given AQL and sample size (lot-
nology are to be made as a product of a collaborative effort
sample size).
between Subcommittee D09.94 and the various technical
air chain, n—in mica, a series of air inclusions in the form of
subcommitteesofCommitteeD09,withSubcommitteeD09.94
a chain or streak.
providingeditorialadvicetothetechnicalsubcommittees.New
arc propagation, n—the movement of an electric arc from its
definitions and revisions of existing definitions must first be
point of inception to another location. (1996) D3032
approvedbythecognizanttechnicalsubcommittee(orsubcom-
arc tracking,n—theprocessproducingtrackswhenarcsoccur
mittees) before inclusion in this terminology.
1 2
This terminology is under the jurisdiction of ASTM Committee D09 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Electrical and Electronic Insulating Materials and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D09.94 on Editorial. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2008. Published June 2008. Originally the ASTM website.
3
approved in 1960. Last previous edition approved in 2002 as D1711–02. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D1711-08. 4th Floor, New York, NY 10036, http://www.ansi.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.
1

---------------------- Page: 1 ----------------------
D1711–08
on or close to the insulation surface. (1996) D2967, D3214
Arrhenius plot, n—a graph of the logarithm of thermal life as concentricity, n—the ratio, expressed in percent, of the mini-
a function of the reciprocal of absolute temperature. mu
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
An American National Standard
Designation:D1711–02 Designation: D 1711 – 08
Standard Terminology Relating to
1
Electrical Insulation
This standard is issued under the fixed designation D1711; 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.
INTRODUCTION
This terminology is used in connection with testing and specifying solid electrical insulating
materials. Modifications to this terminology, reflecting common usage, may appear in particular test
methods, material specifications, practices, or other standards. Included herein are terms pertinent to
general applications, electrical insulating papers, mica, mica processing, processed mica forms,
hookup wire insulation, and partial discharge (corona).
1. Scope*
1.1 This terminology is a compilation of technical terms used in conjunction with testing and specifying solid electrical and
electronic insulating materials in standards under the jurisdiction of Committee D09 on Electrical and Electronic Insulating
Materials.
1.2 It is intended that all definitions in this terminology are identical to definitions of the same terms as printed in standards
of originating technical subcommittees, with the exceptions of: ( 1) deletion of any part of the Discussion included in another
standard that refers specifically to the use of a term in that standard; ( 2) figure numbers and corresponding references; and ( 3)
in this terminology, a parenthetical addition of a reference to one or more technical standards in which the term is used and the
year in which the term was added to this compilation.
1.3 Symbols may be included It is permissible to include symbols as part of the representation of terms, where appropriate.
1.4 It is not intended that this terminology include descriptions of terms or symbols (except as noted in 1.3). Acronyms and
abbreviations referring directly to defined terms may be included. ). It is also permissible to include acronyms and abbreviations
referring directly to defined terms.
1.5 Revisions and additions to the definitions in this terminology are to be made as a product of a collaborative effort between
SubcommitteeD09.94andthevarioustechnicalsubcommitteesofCommitteeD09,withSubcommitteeD09.94providingeditorial
advicetothetechnicalsubcommittees.Newdefinitionsandrevisionsofexistingdefinitionsmustfirstbeapprovedbythecognizant
technical subcommittee (or subcommittees) before inclusion in this terminology.
2. Referenced Documents
2
2.1 ASTM Standards:
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at
Commercial Power Frequencies
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D3426 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials Using
Impulse Waves
D3636 Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials
2.2 Other Standards:
3
ANSI/ASQC A2-1987
1
This terminology is under the jurisdiction ofASTM Committee D09 on Electrical and Electronic Insulating Materials and is the direct responsibility of Subcommittee
D09.94 on Editorial.
Current edition approved March 10, 2002. Published June 2002. Originally published as D1711–60T. Last previous edition D1711–99.
Current edition approved May 1, 2008. Published June 2008. Originally approved in 1960. Last previous edition approved in 2002 as D1711–02.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.ForAnnualBookofASTMStandards
, Vol 10.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 10.02.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.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.
1

---------------------- Page: 1 ----------------------
D1711–08
3. Terminology
acceptable quality level (AQL), n— the maximum percent nonconforming which, for purposes of sampling inspection, is
considered satisfactory as a process average.
acceptance number, n—the maximum allowable numb
...

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