ASTM D 2633:2021

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 stated, in different units, the values in the first set are regarded as standard, while the values in parentheses are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazards see Section 4 and for fire test safety caveats see Test Method D8354 . 1.5 These test methods appear in the following sections: Test Method Section(s) 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 Test Method Section(s) Partial-discharge Extinction Level Test 38 to 44 Physical Tests of Insulation and Jackets 5 to 16 Flammability 63 (Test Method D8354 ) 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 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

29.035.20