1.1 这些测试方法涵盖了绝缘电线和电缆上使用的热塑性绝缘材料和护套的测试程序。要确定对特定绝缘或护套化合物进行的测试，请参阅该类型的产品规范。这些测试方法不适用于被称为软线的产品类别。绝缘电气试验和吸水试验不适用于导体和绝缘之间有隔板的产品类别。 1.2 这些试验方法适用于电线和电缆的绝缘或护套材料。在许多情况下，除非绝缘或护套材料在导体或电缆周围形成，否则无法对其进行测试。因此，在这些测试方法中，对绝缘或护套电线或电缆进行测试，只是为了确定绝缘或护套材料的相关特性，而不是测试导体或完整电缆。 1.3 当以不同单位表示两组值时，第一组中的值被视为标准值，而括号中的值仅供参考，不被视为标准值。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体危险，请参阅第节 4. 火灾试验安全注意事项见试验方法 D8354 . 1.5 这些试验方法见以下章节: 试验方法 截面图 冷弯试验 75 到 77 介电强度保持试验 45 到 51 绝缘电气试验 17 到 29 热变形试验 74 热冲击试验 73 绝缘电阻测试 30 到 37 试验方法 截面图 局部放电熄灭水平测试 38 到 44 绝缘和护套的物理试验 5. 到 16 易燃性 63 （试验方法 D8354 ) 表面电阻率测试 64 到 67 热试验 72 到 77 轨道阻力测试 78 到 81 U形弯管放电试验 68 到 71 垂直火焰试验 63 加速吸水试验 52 到 62 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 6.1 正确解释的物理测试提供了有关绝缘或护套物理特性的信息。物理测试值给出了绝缘在其使用寿命内物理性能的近似值。物理测试为研究和开发、工程设计、质量控制以及规范下的验收或拒收提供了有用的数据。

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. ====== 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.