ASTM D350-21
(Test Method)Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation
Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation
SIGNIFICANCE AND USE
12.1 The dielectric breakdown voltage of the sleeving is of importance as a measure of its ability to withstand electrical stress without failure. This value does not correspond to the dielectric breakdown voltage expected in service, but is of value in comparing different materials or different lots, in controlling manufacturing processes or, when coupled with experience, for a limited degree of design work. The comparison of dielectric breakdown voltage of the same sleeving before and after environmental conditioning (moisture, heat, and the like) gives a measure of its ability to resist these effects. For a more detailed discussion, refer to Test Method D149.
SCOPE
1.1 These test methods cover procedures for testing electrical insulating sleeving comprising a flexible tubular product made from a woven textile fibre base, such as cotton, rayon, nylon, or glass, thereafter impregnated, or coated, or impregnated and coated, with a suitable dielectric material.
1.2 The procedures appear in the following sections:
Procedures
Section(s)
Selection of Test Material
5
Conditioning
6
Dimensions
7 to 11
Dielectric Breakdown Voltage
12 to 17
Brittleness Temperature
18 to 21
Flammability (See Test Methods D8355)
22 to 23
Dielectric Breakdown Voltage After Short-Time Aging
24 to 28
Oil Resistance
29 to 32
Thermal Endurance
33 to 39
Compatibility of Sleeving with Magnet Wire Insulation
40 to 54
Solvent Resistance
55 to 60
Hydrolytic Stability
61 to 67
Effect of Push-Back After Heat Aging
68 to 73
1.3 The values stated in inch-pound units, except for °C, are to be regarded as the standard. The values in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This is a fire-test-response standard. See Test Methods D8355, which contains procedures for flammability tests.
1.5 This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 40.2 and 58.1.1.
Note 1: This standard resembles IEC 60684-2, Specification for Flexible Insulating Sleeving—Part 2 Methods of Test, in a number of ways, but is not consistently similar throughout. The data obtained using either standard are not necessarily technically equivalent.
1.6 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.
General Information
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Standards Content (Sample)
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: D350 − 21
Standard Test Methods for
1
Flexible Treated Sleeving Used for Electrical Insulation
This standard is issued under the fixed designation D350; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 These test methods cover procedures for testing electri-
ization established in the Decision on Principles for the
cal insulating sleeving comprising a flexible tubular product
Development of International Standards, Guides and Recom-
made from a woven textile fibre base, such as cotton, rayon,
mendations issued by the World Trade Organization Technical
nylon, or glass, thereafter impregnated, or coated, or impreg-
Barriers to Trade (TBT) Committee.
nated and coated, with a suitable dielectric material.
1.2 The procedures appear in the following sections:
2. Referenced Documents
Procedures Section(s)
2
2.1 ASTM Standards:
Selection of Test Material 5
D149 Test Method for Dielectric Breakdown Voltage and
Conditioning 6
DielectricStrengthofSolidElectricalInsulatingMaterials
Dimensions 7 to 11
Dielectric Breakdown Voltage 12 to 17
at Commercial Power Frequencies
Brittleness Temperature 18 to 21
D374 Test Methods for Thickness of Solid Electrical Insu-
Flammability (See Test Methods D8355) 22 to 23
lation (Metric) D0374_D0374M
Dielectric Breakdown Voltage After Short-Time Aging 24 to 28
Oil Resistance 29 to 32
D471 Test Method for Rubber Property—Effect of Liquids
Thermal Endurance 33 to 39
D746 Test Method for Brittleness Temperature of Plastics
Compatibility of Sleeving with Magnet Wire Insulation 40 to 54
Solvent Resistance 55 to 60 and Elastomers by Impact
Hydrolytic Stability 61 to 67
D876 Test Methods for Nonrigid Vinyl Chloride Polymer
Effect of Push-Back After Heat Aging 68 to 73
Tubing Used for Electrical Insulation
1.3 The values stated in inch-pound units, except for °C, are
D1711 Terminology Relating to Electrical Insulation
to be regarded as the standard. The values in parentheses are
D2307 Test Method for Thermal Endurance of Film-
mathematical conversions to SI units that are provided for
Insulated Round Magnet Wire
information only and are not considered standard.
D3487 Specification for Mineral Insulating Oil Used in
Electrical Apparatus
1.4 This is a fire-test-response standard. See Test Methods
D8355, which contains procedures for flammability tests. D3636 Practice for Sampling and Judging Quality of Solid
Electrical Insulating Materials
1.5 This standard does not purport to address all of the
D5423 Specification for Forced-Convection Laboratory Ov-
safety concerns, if any, associated with its use. It is the
ens for Evaluation of Electrical Insulation
responsibility of the user of this standard to establish appro-
D6054 Practice for Conditioning Electrical Insulating Mate-
priate safety, health, and environmental practices and deter-
3
rials for Testing (Withdrawn 2012)
mine the applicability of regulatory limitations prior to use.
D8355 Test Methods for Flammability of Electrical Insulat-
For specific hazard statements, see 40.2 and 58.1.1.
ing Materials Used for Sleeving or Tubing
NOTE 1—This standard resembles IEC 60684-2, Specification for
E145 Specification for Gravity-Convection and Forced-
Flexible Insulating Sleeving—Part 2 Methods of Test, in a number of
Ventilation Ovens
ways, but is not consistently similar throughout. The data obtained using
E176 Terminology of Fire Standards
either standard are not necessarily technically equivalent.
1 2
These test methods are 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 are the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D09.07 on Electrical Insulating Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Jan. 1, 2021. Published February 2021. Originally the ASTM website.
3
approved in 1932. Last previous edition approved in 2013 as D350 – 13. DOI: The last approved version of this historical standard is referenced on
10.1520/D0350-21. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700,
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
Designation: D350 − 13 D350 − 21
Standard Test Methods for
1
Flexible Treated Sleeving Used for Electrical Insulation
This standard is issued under the fixed designation D350; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*Scope
1.1 These test methods cover procedures for testing electrical insulating sleeving comprising a flexible tubular product made from
a woven textile fibre base, such as cotton, rayon, nylon, or glass, thereafter impregnated, or coated, or impregnated and coated,
with a suitable dielectric material.
1.2 The procedures appear in the following sections:
Procedures Section(s)
Selection of Test Material 5
Conditioning 6
Dimensions 7 to 11
Dielectric Breakdown Voltage 12 to 17
Brittleness Temperature 18 to 21
Flammability (See Test Methods D8355) 22 to 23
Dielectric Breakdown Voltage After Short-Time Aging 24 to 28
Oil Resistance 29 to 32
Thermal Endurance 33 to 39
Compatibility of Sleeving with Magnet Wire Insulation 40 to 54
Solvent Resistance 55 to 60
Hydrolytic Stability 61 to 67
Effect of Push-Back After Heat Aging 68 to 73
Procedures Sections
Brittleness Temperature 18 to 21
Compatibility of Sleeving with Magnet Wire Insulation 45 to 59
Conditioning 6
Dielectric Breakdown Voltage 12 to 17
Dielectric Breakdown Voltage After Short-Time Aging 29 to 33
Dimensions 7 to 11
Effect of Push-Back After Heat Aging 73 to 78
Flammability 22 to 28
Hydrolytic Stability 66 to 72
Oil Resistance 34 to 37
Selection of Test Material 5
Solvent Resistance 60 to 65
Thermal Endurance 38 to 44
1.3 The values stated in inch-pound units, except for °C, are to be regarded as the standard. The values in parentheses are
mathematical conversions to SI units that are provided for information only and are not considered standard.
1
These test methods are under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and are the direct responsibility of Subcommittee
D09.07 on Flexible and Rigid Electrical Insulating Materials.
Current edition approved Nov. 1, 2013Jan. 1, 2021. Published December 2013February 2021. Originally approved in 1932. Last previous edition approved in 20092013
as D350 – 09.D350 – 13. DOI: 10.1520/D0350-13.10.1520/D0350-21.
*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
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D350 − 21
1.4 This is a fire-test-response standard. See SectionsTest 22 throughMethods D835528, which are the contains procedures for
flammability tests.
1.5 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled
conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products
or assemblies under actual fire conditions.
1.5 This 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. For specific hazard statements, see 45.240.2 and 63.1.158.1.1.
NOTE 1—This standard resembles IEC 60684-2, Specification for Flexible Insulating Sleeving—Part 2 Methods of Test, in a number of ways, but is not
consistently similar throughout. The data obtained using either standard are not necessarily technically equivalent.
1.7 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these
tests.
1.6 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.
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
D374 Test Metho
...
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