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现行 ASTM D4246-14(2020)
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Standard Specification for Ozone-Resistant Thermoplastic Elastomer Insulation for Wire and Cable, 90 °C Operation 电线电缆用耐臭氧热塑性弹性体绝缘材料的标准规范
发布日期: 2020-08-01
1.1 本规范涵盖14 AWG及以上电线和电缆的耐臭氧绝缘化合物。该化合物基本上由热塑性弹性体组成。 1.2 这种绝缘被认为适合在干燥位置导体温度不超过90°C的情况下连续运行。工作电压不得超过2000 V。最低安装温度为 –40°C。 1.3 在许多情况下,除非绝缘材料在导体或电缆周围形成,否则无法对其进行测试。因此,本规范中对绝缘电线或电缆进行的测试仅用于确定绝缘材料的相关特性,而不是测试导体或完整电缆。 1.4 当以不同单位呈现两组值时,第一组中的值将被视为标准值。 括号中给出的值是数学转换,仅供参考,不被视为标准值。 1.5 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。
1.1 This specification covers an ozone-resistant insulating compound for electrical wire and cables 14 AWG and larger. This compound consists substantially of a thermoplastic elastomer. 1.2 This type of insulation is considered suitable for continuous operation at conductor temperatures not exceeding 90 °C in dry locations. Operating voltages are not to exceed 2000 V. The minimum installation temperature is –40 °C. 1.3 In many instances the insulation material cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on insulated wire or cable in this specification solely to determine the relevant property of the insulation material and not to test the conductor or completed cable. 1.4 Whenever two sets of values are presented, in different units, the values in the first set are to be regarded as standard. The values given in parentheses are mathematical conversions that are provided for information only and are not considered standard. 1.5 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.
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归口单位: D09.07
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