1.1 本规范涵盖由圆形铝1350-H19（超硬）线和用作架空电导体的圆形涂层钢芯线制成的同心绞合导线（解释 注1 和解释性 注2 ). 1.2 本规范涵盖的ACSR有九种类型的涂层钢芯线，缩写如下（解释 注2 ): 1.2.1 ACSR/GA或ACSR/GA2-- ACSR 使用A级镀锌钢丝， 1.2.2 ACSR/GC或ACSR/GC2-- ACSR 使用C级镀锌钢丝， 1.2.3 ACSR/MA或ACSR/MA2-- ACSR 使用A级Zn-5A1-MM涂层钢丝， 1.2.4 ACSR/HS或ACSR/GA3-- ACSR 使用A级镀锌高强度钢丝， 1.2.5 ACSR/MS或ACSR/MA3-- ACSR 使用A级Zn-5A1-MM涂覆的高强度钢丝， 1.2.6 ACSR/GA4-- ACSR 使用A级镀锌超高强度钢丝， 1.2.7 ACSR/MA4-- ACSR 使用A级Zn-5A1-MM涂覆的超高强度钢丝， 1.2.8 ACSR/GA5-- ACSR 使用A级镀锌超高强度钢丝， 1.2.9 ACSR/MA5-- ACSR 使用A级Zn-5Al-MM涂覆的超高强度钢丝。 1.3 以国际单位制或英寸磅单位表示的数值应单独视为标准。每个系统中规定的值可能不是完全相等的；因此，每个系统应独立使用。将两个系统的值合并可能导致不符合标准。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers concentric-lay-stranded conductors made from round aluminum 1350-H19 (extra hard) wires and round, coated steel core wire(s) for use as overhead electrical conductors (Explanatory Note 1 and Explanatory Note 2 ). 1.2 ACSR covered by this specification has nine types of coated steel core wire which are designated by abbreviations as follows (Explanatory Note 2 ): 1.2.1 ACSR/GA or ACSR/GA2— ACSR using Class A zinc-coated steel wire, 1.2.2 ACSR/GC or ACSR/GC2— ACSR using Class C zinc-coated steel wire, 1.2.3 ACSR/MA or ACSR/MA2— ACSR using Class A Zn-5A1-MM coated steel wire, 1.2.4 ACSR/HS or ACSR/GA3— ACSR using Class A zinc-coated high-strength steel wires, 1.2.5 ACSR/MS or ACSR/MA3— ACSR using Class A Zn-5A1-MM coated high-strength steel wires, 1.2.6 ACSR/GA4— ACSR using Class A zinc-coated extra-high-strength steel wires, 1.2.7 ACSR/MA4— ACSR using Class A Zn-5A1-MM coated extra-high-strength steel wires, 1.2.8 ACSR/GA5— ACSR using Class A zinc-coated ultra-high-strength steel wires, 1.2.9 ACSR/MA5— ACSR using Class A Zn-5Al-MM coated ultra-high-strength steel wires. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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. 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.