1.1 本规范涵盖电气设备用镀镍软或退火圆铜线。 1.2 涵盖以下五类电线: 1.2.1 2类- 镍涂层至少占涂覆线材总重量2%的线材。 1.2.2 第4类- 镍涂层至少占涂覆线材总重量4%的线材。 1.2.3 第7类- 镍涂层至少占涂覆线材总重量7%的线材。 1.2.4 类别10- 镍涂层至少占涂覆线材总重量10%的线材。 1.2.5 类别27- 镍涂层至少占涂覆线材总重量27%的线材。 附注1: 为了提供信息，以微英寸为单位的涂层厚度由中列出的百分比提供 1.2 显示在 表1 . 1.3 以英寸表示的值-英镑单位应被视为标准单位。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.3.1 例外情况- 密度、电阻率和体积的SI值应被视为标准值。 1.4 本危害声明仅适用于第节 6 、试验方法和本规范的附录。 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.5 本国际标准是根据世界贸易组织发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的贸易委员会。

1.1 This specification covers nickel-coated, soft or annealed, round copper wire for use in electrical equipment. 1.2 Five classes of wire are covered as follows: 1.2.1 Class 2— Wire whose nickel coating is at least 2 % of the total weight of the coated wire. 1.2.2 Class 4— Wire whose nickel coating is at least 4 % of the total weight of the coated wire. 1.2.3 Class 7— Wire whose nickel coating is at least 7 % of the total weight of the coated wire. 1.2.4 Class 10— Wire whose nickel coating is at least 10 % of the total weight of the coated wire. 1.2.5 Class 27— Wire whose nickel coating is at least 27 % of the total weight of the coated wire. Note 1: For information purposes, the thickness of coating in microinches provided by the percentages listed in 1.2 is shown in Table 1 . 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parenthesis are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3.1 Exceptions— The SI values for density, resistivity, and volume are to be regarded as standard. 1.4 This hazard statement applies only to Section 6 , Test Methods, and to the Appendix of this specification. 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. 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.