ASTM D1711-24

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1711 − 24
Standard Terminology Relating to
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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. A number 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* have been appropriately balloted, shall also be included in this
terminology standard.
1.1 This terminology standard is a compilation of technical
1.4 It is permissible to include symbols as part of the
terms associated with testing and specifying solid electrical and
representation of terms, where appropriate.
electronic insulating materials.
1.5 It is not intended that this terminology standard include
1.2 This terminology standard shall contain all definitions
symbols (except as noted in 1.4). It is also permissible to
that are balloted specifically through Subcommittee D09.94
include acronyms and abbreviations referring directly to de-
and through D09 main committee and that are of general
fined terms.
interest to standards associated with electrical and electronic
insulating materials. Those definitions shall be of importance
1.6 Revisions and additions to those definitions in this
to electrical and electronic insulating materials issues but need
terminology standard which originate in a specific standard
not be directly associated with a specific standard under the
under the jurisdiction of Committee D09 are to be made as a
jurisdiction of Committee D09 on Electrical and Electronic
product of a collaborative effort between Subcommittee
Insulating Materials.
D09.94 and the corresponding technical subcommittee of
Committee D09, with Subcommittee D09.94 providing edito-
1.3 It is intended that all definitions in this terminology
rial advice to the technical subcommittees.
standard originating in a specific standard under the jurisdic-
tion of Committee D09 be identical to definitions of the same
1.7 Each definition in this terminology standard shall be
terms as printed in standards of originating technical accompanied by the year in which it was first incorporated into
subcommittees, with the exceptions of: (1) deletion of any part
the standard, placed at the end in parentheses. All discussions
of the Discussion included in another standard that refers shall also carry a date; it is possible that the discussion date is
specifically to the use of a term in that standard; (2) figure
different from the definition date.
numbers and corresponding references; and (3) in this termi-
1.8 1.8.1 – 1.8.3 contain references to specific terminology
nology standard, a parenthetical addition of a reference to one
standards that are relevant to specific electrical insulating
or more technical standards in which the term is used and the
materials or applications. In case of conflict between a defini-
year in which the term was added to this compilation.
tion contained in Terminology D1711 and one contained in
1.3.1 Definitions contained in this terminology standard
another standard, the definition given in Terminology D1711
which did not originate in a specific standard under the
shall prevail.
jurisdiction of Committee D09, or which originated in a
1.8.1 For terms related to plastics, the applicable definitions
standard that has since been revised or withdrawn, and that
are contained in Terminology D883.
1.8.2 For terms relating to fire, the applicable definitions are
contained in Terminology E176 and ISO 13943. In case of
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conflict between Terminology E176 and ISO 13943, the
This terminology is under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and is the direct responsibility of
definitions given in Terminology E176 shall prevail.
Subcommittee D09.94 on Editorial.
1.8.3 For terms relating to precision and bias and associated
Current edition approved March 1, 2024. Published March 2024. Originally
issues, the applicable definitions are contained in Terminology
approved in 1960. Last previous edition approved in 2022 as D1711 – 22. DOI:
10.1520/D1711-24. E456.
*A Summary of Changes section ap
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