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About This Item

 

Full Description

1.1 These test methods cover the procedures for testing rigid round rods used in electrical insulation. These round rods include many types made from fibrous sheets of basic materials, such as cellulose, glass, or nylon in the form of paper, woven fabrics, or mats, bonded together by natural or synthetic resins, or by adhesives. Such round rods include vulcanized fiber and thermosetting laminates as well as round rods made from cast, molded, or extruded natural or synthetic resins, with or without fillers or reinforcing materials.

1.2 The procedures appear in the following sections:

 

Section

Compressive strength (axial)

20 - 25

Density

28 - 30

Dielectric strength

31 - 39

Flexural strength

13 - 19

Tensile strength

 7 - 12

Water absorption

26-27


1.3 The values stated in inch-pound units are to be regarded as the standard.

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 a specific warning statement see 36.2.

 

Document History

  1. ASTM D349-13

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    Standard Test Methods for Laminated Round Rods Used for Electrical Insulation (Withdrawn 2020)

    • Most Recent
  2. ASTM D349-07


    Standard Test Methods for Laminated Round Rods Used for Electrical Insulation

    • Historical Version
  3. ASTM D349-99(2004)


    Standard Test Methods for Laminated Round Rods Used for Electrical Insulation

    • Historical Version
  4. ASTM D349-99


    Standard Test Methods for Laminated Round Rods Used for Electrical Insulation

    • Historical Version