ICS 29.240.10 CCS F25 DL 中华人民共和国电力行业标准 P DL/T 5009.3-2026 代替 DL 5009.3-2013 电力建设安全工作规程 第3部分:变电站 Code of safety operation in power engineering construction— Part 3: Substation 2026-06-26 发布 2026-12-26 实施 国家能源局 发布 目 次 1 总则 ……………………………… 1 2 术语 ……………………………… 2 3 通则 ……………………………… 3 3.1 基本规定 ………………………. 3 3.2 施工现场 ………………………. 3 3.3 通用作业 ………………………. 8 3.4 施工机械及工器具 ……………….. 12 3.5 运输与装卸 …………………….. 25 3.6 特殊环境施工 …………………… 26 4 建筑工程 ………………………….. 28 4.1 土石方开挖工程 …………………. 28 4.2 桩基工程 ………………………. 30 4.3 脚手架工程 …………………….. 31 4.4 混凝土工程 …………………….. 34 4.5 砖石砌体工程 …………………… 37 4.6 装饰工程 ………………………. 38 4.7 拆除工程 ………………………. 38 4.8 构架安装 ………………………. 39 4.9 钢结构安装 …………………….. 40 4.10 其他施工 ………………………. 40 5 电气装置安装 ………………………. 43 5.1 电气设备安装 …………………… 43 5.2 母线安装 ………………………. 47 5.3 电缆安装 ………………………. 47 5.4 电气试验、调整及启动 ……………. 48 6 改、扩建工程 ………………………. 52 6.1 一般规定 ………………………. 52 6.2 电气设备全部或部分停电作业 …….. 53 6.3 改、扩建工程的其他作业 ………… 54 附录A 起重工具检查、试验的周期及要求 .. 56 本规范用词说明 …………………….. 58 引用标准名录 ………………………. 59 附:条文说明 ………………………. 60 IV Contents 1 General Provisions ………………………………………………………………….. 1 2 Terms ……………………………………………………………………………… 2 3 General Rules ………………………………………………………………………. 3 3.1 Basic Regulations …………………………………………………………….. 3 3.2 Construction Sites ……………………………………………………………. 3 3.3 General Operation …………………………………………………………….. 8 3.4 Construction machinery and tools ……………………………………………….. 12 3.5 Transportation and Scaffolding, etc. ……………………………………………. 25 3.6 Special environment construction ……………………………………………….. 26 4 Construction Projects ……………………………………………………………….. 28 4.1 Earthwork Excavating Project …………………………………………………… 28 4.2 Pile Foundations Project ………………………………………………………. 30 4.3 Scaffolding Project …………………………………………………………… 31 4.4 Concrete Project ……………………………………………………………… 34 4.5 Brick and Stone/Masonry Project ………………………………………………… 37 4.6 Decoration Project ……………………………………………………………. 38 4.7 Demolition Project ……………………………………………………………. 38 4.8 Installation of Structure Steels …………………………………………………. 39 4.9 Installation of Steel Structure ………………………………………………….. 40 4.10 Other Constructions ………………………………………………………….. 40 5 Installation of Electrical Devices ……………………………………………………… 43 5.1 Installation of Electrical Equipment ……………………………………………. 43 5.2 Installation of Generators …………………………………………………….. 47 5.3 Installation of Electric Cable …………………………………………………. 47 5.4 Electrical Test, Adjustment and Initiation ………………………………………. 48 6 Extension and Reconstruction Projects …………………………………………………. 52 6.1 General Regulations …………………………………………………………… 52 6.2 Work with all or part of the electrical equipment powered off ……………………. 53 6.3 Other operations of reconstruction and expansion projects ……………………….. 54 Appendix A Inspection, test period and requirements of lifting tools ……………………. 56 Explanation of Wording in this code …………………………………………………….. 58 List of quoted standards …………………………………………………………… 59 Addition: Explanation of provisions …………………………………………………. 60 v

