ASTM D350-01
(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
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 may be of considerable 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 D 149.
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:ProceduresSectionsBrittleness Temperature18 to 22 Compatibility of Sleeving with Magnet Wire Insulation45 to 59 Conditioning6Dielectric Breakdown Voltage12 to 17 Dielectric Breakdown Voltage After Short-Time Aging29 to 33 Dimensions7 to 11 Effect of Push-Back After Heat Aging73 to 78 Flammability22 to 28 Hydrolytic Stability 66 to 72 Oil Resistance34 to 37 Selection of Test Material5Solvent Resistance 60 to 55Thermal Endurance38 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 provided for information only.
1.4 This is a fire-test-response standard. See Sections through , which are the procedures for flammability tests.
1.5 These test methods can be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions, but should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which take into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.
1.6 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 45.2 and 63.1.1 .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 may not be technically equivalent.
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An American National Standard
Designation:D350–01
Standard Test Methods for
1
Flexible Treated Sleeving Used for Electrical Insulation
This standard is issued under the fixed designation D 350; 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 (e) 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 bility of regulatory limitations prior to use. For specific hazard
statements, see 45.2 and 63.1.1.
1.1 These test methods cover procedures for testing electri-
cal insulating sleeving comprising a flexible tubular product
NOTE 1—This standard resembles IEC 60684-2, Specification for
made from a woven textile fibre base, such as cotton, rayon,
Flexible Insulating Sleeving—Part 2 Methods of Test, in a number of
ways, but is not consistently similar throughout. The data obtained using
nylon, or glass, thereafter impregnated, or coated, or impreg-
either standard may not be technically equivalent.
nated and coated, with a suitable dielectric material.
1.2 The procedures appear in the following sections:
2. Referenced Documents
Procedures Sections
2.1 ASTM Standards:
Brittleness Temperature 18 to 21
D 149 Test Method for Dielectric Breakdown Voltage and
Compatibility of Sleeving with Magnet Wire Insulation 45 to 59
Dielectric Strength of Solid Electrical Insulating Materials
Conditioning 6
2
at Commercial Power Frequencies
Dielectric Breakdown Voltage 12 to 17
Dielectric Breakdown Voltage After Short-Time Aging 29 to 33
D 374 Test Methods for Thickness of Solid Electrical Insu-
Dimensions 7 to 11
2
lation
Effect of Push-Back After Heat Aging 73 to 78
D 471 Test Method for Rubber Property—Effect of Liq-
Flammability 22 to 28
3
Hydrolytic Stability 66 to 72
uids
Oil Resistance 34 to 37
D 746 Test Method for Brittleness Temperature of Plastics
Selection of Test Material 5
4
and Elastomers by Impact
Solvent Resistance 60 to 65
Thermal Endurance 38 to 44
D 876 Test Methods for Nonrigid Vinyl Chloride Polymer
2
Tubing Used for Electrical Insulation
1.3 The values stated in inch-pound units, except for °C, are
D 2307 Test Method for Relative Thermal Endurance of
to be regarded as the standard. The values in parentheses are
2
Film-Insulated Round Magnet Wire
provided for information only.
D 3487 Specification for Mineral Insulating Oil Used in
1.4 This is a fire-test-response standard. See Sections 22
5
Electrical Apparatus
through 28, which are the procedures for flammability tests.
D 3636 Practice for Sampling and Judging Quality of Solid
1.5 These test methods can be used to measure and describe
6
Electrical Insulating Materials
the properties of materials, products, or assemblies in response
D 5423 Specification for Forced-Convection Laboratory
to heat and flame under controlled laboratory conditions, but
6
Ovens for Evaluation of Electrical Insulation
shouldnotbeusedtodescribeorappraisethefirehazardorfire
D 6054 Practice for Conditioning Electrical Insulating Ma-
risk of materials, products, or assemblies under actual fire
6
terials for Testing
conditions. However, results of this test may be used as
E 145 Specification for Gravity-Convection and Forced-
elements of a fire risk assessment which take into account all
7
Ventilation Ovens
of the factors which are pertinent to an assessment of the fire
2.2 IEEE Standard:
hazard of a particular end use.
IEEE 101 Guide for the StatisticalAnalysis ofThermal Life
1.6 This standard does not purport to address all of the
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Test Data
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
2
Annual Book of ASTM Standards, Vol 10.01.
3
Annual Book of ASTM Standards, Vol 09.01.
4
Annual Book of ASTM Standards, Vol 08.01.
1 5
These test methods are under the jurisdiction of ASTM Committee D09 on Annual Book of ASTM Standards, Vol 10.03.
6
Electrical and Electronic Insulating Materials and are the direct responsibility of Annual Book of ASTM Standards, Vol 10.02.
7
Subcommittee D09.07 on Flexible and Rigid Insulating Materials. Annual Book of ASTM Standards, Vol 14.04.
8
Current edition approved Sept. 10, 2001. Published November 2001. Originally Available from the Institute of Electrical and Electronics Engineers, Inc., 1828
published as D 350 – 32T. Last previous edition D 350 – 96. L St., NW, Suite 1202, Washington, DC 20036–5104.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D350–01
TABLE 1 ASTM St
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