1.1 本规范涵盖了由圆形铜线制成的绞合导线，未涂覆或涂有锡、铅或铅合金，用于电气用途的绝缘导线组件。这些导线应采用单输入线（SIW）方法，由一层或多层辊形或模具闭合的螺旋敷设导线组成。（参见 注1 和解释性 注1 ) 注1: 本规范指南中也允许使用旨在防止纵向水传播并进一步覆盖/绝缘的密封导线。 1.2 以英寸-磅或国际单位制表示的数值应单独视为标准值。每个系统中的值不是精确等价的；因此，每个系统应相互独立使用。合并两个系统的值可能会导致不符合规范。 1.2.1 对于密度、电阻率和温度，以国际单位制表示的值应视为标准值。 1.3 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 stranded conductors made from round copper wires, either uncoated or coated with tin, lead, or lead alloy for general use in insulated conductor assemblies for electrical purposes. These conductors shall be composed of one or more roller shaped or die closed layers of helically laid wires using the single input wire (SIW) methodology. (see Note 1 and Explanatory Note 1 ) Note 1: Sealed conductors which are intended to prevent longitudinal water propagation and are further covered/insulated, are also permitted within the guidelines of this specification. 1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.2.1 For density, resistivity, and temperature, the values stated in SI units are to be regarded as standard. 1.3 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.