1.1 本规范涵盖照明结构中使用的旋铸预应力混凝土底座。 1.2 单位- 以国际单位制表示的数值应视为标准值。 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 spun cast prestressed concrete bases used in lighting structures. 1.2 Units— 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.