ASTM D229-09b

    Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation


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    1. Scope

    1.1 These test methods cover procedures for testing rigid electrical insulation normally manufactured in flat sheet or plate form. They are generally used as terminal boards, spacers, voltage barriers, and circuit boards.

    Note 1—For tests applying to vulcanized fibre reference needs to be made to Test Methods D619.

    Note 2—This standard resembles IEC 60893-2, Specification for Rigid Industrial Laminated Sheets Based On Thermosetting Resins for Electrical Purpose, Methods of Tests.

    1.2 The test methods appear in the following sections:

    TestSectionsASTM
    Test
    Method
    Acetone extractable matter83 to 84D494
    Arc resistance47 D495
    Ash56 to 60 ...
    Bonding strength49 to 54...
    Burning rate and flame resistance61 to 75...
    Compressive strength25 D695
    Conditioning 4 D6054
    Dissipation factor34 to 40D669
    Dielectric strength28 to 33D149
    Expansion (linear thermal)76D696
    Flexural properties12 to 24D790
    Hardness (Rockwell)55 D785
    Insulation resistance and resistivity41 to 46D257
    Permittivity34 to 40D150
    Resistance to impact26 D256
    Tensile properties 7 to 11D638
    Thickness 5 to 6D374
    Tracking resistance48 D2132
    Warp or twist77 to 82...
    Water absorption27 D570

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given 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 Sections 61 through 75, which are the procedures for burning rate and flame resistance.

    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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 31.1 and 1.6.

    1.6 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.

    1.7 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.

    17.1 This test method covers the determination of flexural properties at elevated temperature, and as a function of time of exposure to elevated temperature.


    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

    D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics

    D257 Test Methods for DC Resistance or Conductance of Insulating Materials

    D374 Test Methods for Thickness of Solid Electrical Insulation (Metric) D0374_D0374M

    D494 Test Method for Acetone Extraction of Phenolic Molded or Laminated Products

    D495 Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation

    D570 Test Method for Water Absorption of Plastics

    D617 Test Method for Punching Quality of Phenolic Laminated Sheets

    D619 Test Methods for Vulcanized Fibre Used for Electrical Insulation

    D638 Test Method for Tensile Properties of Plastics

    D669 Test Method for Dissipation Factor and Permittivity Parallel with Laminations of Laminated Sheet and Plate Materials

    D695 Test Method for Compressive Properties of Rigid Plastics

    D696 Test Method for Coefficient of Linear Thermal Expansion of Plastics Between 30C and 30C with a Vitreous Silica Dilatometer

    D710 Specification for Vulcanized Fibre Sheets, Rods, and Tubes Used for Electrical Insulation

    D785 Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials

    D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

    D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

    D883 Terminology Relating to Plastics

    D1674 Test Method for Testing Polymerizable Embedding Compounds Used for Electrical Insulation

    D1711 Terminology Relating to Electrical Insulation

    D1825 Practice for Etching and Cleaning Copper-Clad Electrical Insulating Materials and Thermosetting Laminates for Electrical Testing

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

    D2303 Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and Erosion of Insulating Materials

    D3487 Specification for Mineral Insulating Oil Used in Electrical Apparatus

    D5032 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions

    D6054 Practice for Conditioning Electrical Insulating Materials for Testing

    E176 Terminology of Fire Standards

    E197 Specification for Enclosures and Servicing Units for Tests Above and Below Room Temperature

    IEC Standard

    IEC 60893–2 Specification for Rigid Industrial Laminated Sheets Based on Thermosetting Resins for Electrical Purpose, Methods of Tests Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.


    ICS Code

    ICS Number Code 29.035.01 (Insulating materials in general)

    UNSPSC Code

    UNSPSC Code 30265800(Plastic bars and sheets)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D0229-09B

    Citation Format

    ASTM D229-09b, Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation, ASTM International, West Conshohocken, PA, 2009, www.astm.org

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