ASTM D2633 - 13a

    Standard Test Methods for Thermoplastic Insulations and Jackets for Wire and Cable

    Active Standard ASTM D2633 | Developed by Subcommittee: D09.18

    Book of Standards Volume: 10.02


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    Significance and Use

    6.1 Physical tests, properly interpreted, provide information with regard to the physical properties of the insulation or jacket. The physical test values give an approximation of how the insulation will physically perform in its service life. Physical tests provide useful data for research and development, engineering design, quality control, and acceptance or rejection under specifications.

    1. 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, refer to the product specification for that type. These test methods do not apply to the class of products known as flexible cords. The electrical tests on insulation and water-absorption tests do not apply to the class of products having a separator between the conductor and the insulation.

    1.2 These test methods pertain to insulation or jacket material for electrical wires and cables. In many instances the insulation or jacket material cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on insulated or jacketed wire or cable in these test methods solely to determine the relevant property of the insulation or jacket material and not to test the conductor or completed cable.

    1.3 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in parentheses are for information only.

    1.4 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 hazards see Sections 4 and 63.

    1.5 The procedures appear in the following sections:

    Procedure

    Sections

    Cold Bend Test

    75 to 77

    Dielectric Strength Retention Test

    45 to 51

    Electrical Tests of Insulation

    17 to 29

    Heat Distortion Test

    74

    Heat Shock Test

    73

    Insulation Resistance Test

    30 to 37

    Partial-Discharge Extinction Level Test

    38 to 44

    Physical Tests of Insulation and Jackets

     5 to 16

    Surface Resistivity Test

    64 to 67

    Thermal Tests

    72 to 77

    Track Resistance Test

    78 to 81

    U-Bend Discharge Test

    68 to 71

    Vertical Flame Test

    63

    Water Absorption Tests, Accelerated

    52 to 62



    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    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

    D257 Test Methods for DC Resistance or Conductance of Insulating Materials

    D374 Test Methods for Thickness of Solid Electrical Insulation

    D471 Test Method for Rubber Property--Effect of Liquids

    D573 Test Method for Rubber--Deterioration in an Air Oven

    D638 Test Method for Tensile Properties of Plastics

    D1248 Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable

    D1711 Terminology Relating to Electrical Insulation

    D2132 Test Method for Dust-and-Fog Tracking and Erosion Resistance of Electrical Insulating Materials

    D3755 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials Under Direct-Voltage Stress

    D5025 Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic Materials

    D5207 Practice for Confirmation of 20-mm (50-W) and 125-mm (500-W) Test Flames for Small-Scale Burning Tests on Plastic Materials

    D5423 Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    Federal Standard

    FederalSpecification

    ICEA Standard

    T-24-380 Guide for Partial-Discharge Procedure Available from The Insulated Cable Engineers Association, Inc. (ICEA), P.O. Box 1568, Carrollton, GA 30112, http://www.icea.net.

    UL Standard

    UL2556 Wire and Cable Test Methods Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas, WA 98607-8542, http://www.ul.com.


    ICS Code

    ICS Number Code 29.035.20 (Plastic and rubber insulating materials)

    UNSPSC Code

    UNSPSC Code 26121500(Electrical wire)


    DOI: 10.1520/D2633

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