ASTM D2633-96

Standard Methods of Testing Thermoplastic Insulations and Jackets for Wire and Cable

SCOPE
1.1 These test methods cover procedures for the testing of thermoplastic insulations and jackets used on insulated wire and cable. To determine the test to be made on the particular insulation or jacket compound, reference should be made to the product specification for that type. These test methods do not apply to the class of products known as flexible cords. The insulation and water-absorption tests do not apply to the class of products having a separator between the conductor and the insulation.  
1.2 This standard may involve the use of certain hazardous materials, operations, and equipment. It is the responsibility of the user of this standard to establish appropriate safety practices and to determine the applicability of regulatory limitations prior to use.  
1.3 In this standard the temperature appearing first is the commonly used temperature.  
1.4 The procedures appear in the following sections:  Procedure Sections Cold Bend Test 42 to 44 Dielectric Strength Retention Test 28 to 30 Electrical Tests of Insulation 17 to 24 Heat Distortion Test 41 Heat Shock Test 40 Partial-Discharge Extinction Level Test 25 to 27 Physical Tests of Insulation and Jackets 4 to 16 Surface Resistivity Test 45 to 47 U-Bend Discharge Test 45 to 47 Vertical Flame Test 38 Water Absorption Tests, Accelerated 31 to 37

General Information

• Status: Historical
• Publication Date: 09-Oct-1996
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 2633 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Methods for
1
Thermoplastic Insulations and Jackets for Wire and Cable
This standard is issued under the fixed designation D 2633; 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.
1. Scope
Vertical Flame Test 63
Water Absorption Tests, Accelerated 52 to 62
1.1 These test methods cover procedures for the testing of
thermoplastic insulations and jackets used on insulated wire
2. Referenced Documents
and cable. To determine the test to be made on the particular
2.1 ASTM Standards:
insulation or jacket compound, reference should be made to the
D 149 Test Method for Dielectric Breakdown Voltage and
product specification for that type. These test methods do not
Dielectric Strength of Solid Electrical Insulating Materials
apply to the class of products known as flexible cords. The
2
at Commercial Power Frequencies
electrical tests on insulation and water-absorption tests do not
D 150 Test Methods for AC Loss Characteristics and Per-
apply to the class of products having a separator between the
mittivity (Dielectric Constant) of Solid Electrical Insulat-
conductor and the insulation.
2
ing Materials
1.2 These test methods pertain to insulation or jacket
D 257 Test Methods for D-C Resistance or Conductance of
material for electrical wires and cables. In many instances the
2
Insulating Materials
insulation or jacket cannot be tested unless it has been formed
D 374 Test Methods for Thickness of Solid Electrical Insu-
around a conductor or cable. Therefore, tests are done on
2
lation
insulated or jacketed wire or cable in these test methods solely 3
D 471 Test Method for Rubber Property-Effect of Liquids
to determine the relevant property of the insulation or jacket
D 573 Test Method for Rubber-Deterioration in an Air
and not to test the conductor or completed cable. 3
Oven
1.3 The values stated in inch-pound units are the standard,
4
D 638 Test Method for Tensile Properties of Plastics
except in cases where SI units are more appropriate. The values
D 1248 Specification for Polyethylene Plastics Molding and
in parentheses are for information only.
4
Extrusion Materials
1.4 This standard does not purport to address all of the
D 2132 Test Method for Dust-and-Fog Tracking and Ero-
safety concerns, if any, associated with its use. It is the
2
sion Resistance of Electrical Insulating Materials
responsibility of the user of this standard to establish appro-
D 3755 Test Method for Dielectric Breakdown Voltage and
priate safety and health practices and determine the applica-
Dielectric Strength of Solid Electrical Insulating Materials
bility of regulatory limitations prior to use. For specific hazards 5
Under Direct-Voltage Stress
see Sections 4 and 63.
D 5025 Specification for a Laboratory Burner Used for
1.5 The procedures appear in the following sections: 6
Small-Scale Burning Tests on Plastic Materials
Procedure Sections
D 5207 Practice for Calibration of 20 and 125 mm Test
Cold Bend Test 75 to 77
Flames for Small-Scale Burning Tests on Plastic Materi-
Dielectric Strength Retention Test 45 to 51
6
Electrical Tests of Insulation 17 to 29 als
Heat Distortion Test 74
D 5423 Specification for Forced-Convection Laboratory
Heat Shock Test 73
5
Ovens for Evaluation of Electrical Insulation
Insulation Resistance Test 30 to 37
Partial-Discharge Extinction Level Test 38 to 44
E 29 Practice for Using Significant Digits in Test Data to
Physical Tests of Insulation and Jackets 5 to 16 7
Determine Conformance with Specifications
Surface Resistivity Test 64 to 67
2.2 Federal Standard:
Thermal Tests 72 to 77
Track Resistance Test 78 to 81
U-Bend Discharge Test 68 to 71
1 2
These methods are under the jurisdiction of ASTM Committee D-9 on Annual Book of ASTM Standards, Vol 10.01.
3
Electrical and Electronic Insulating Materials and are the direct responsibility of Annual Book of ASTM Standards, Vol 09.01.
4
Subcommittee D09.18 on Solid Insulations, Non-Metallic Shieldings, and Cover- Annual Book of ASTM Standards, Vol 08.01.
5
ings for Electrical and Telecommunications Wires and Cables. Annual Book of ASTM Standards, Vol 10.02.
6
Current edition approved Oct. 10, 1996. Published December 1996. Originally Annual Book of ASTM Standards, Vol 08.03.
7
published as D 2633 – 67. Last previous edition D 2633 – 82 (1989). Annual Book of ASTM Standards, Vol 14.02.
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