NB/T 10349—2019 I ICS 27.140 P26 中华人民共和国能源行业标准 NB/T 10349—2019 代替DL/T 709—1999 压力钢管安全检测技术规程 Technical code for safety inspection of steel penstocks 2019-12-30 发布 2020-07-01 实施 国家能源局 发 布 NB II 目 次 前/g3/g3/g3/g3言 .............................................................. ............................................................... .................................. 1 1 范围 .............................................................. ............................................................... .................................... 2 2 规范性引用文件 .............................................................. ............................................................... ................ 2 3 基本规定 .............................................................. ............................................................... ............................ 3 3.1 检测机构、人员及设备 .............................................................. ............................................................... . 3 3.2 检测内容及项目 .............................................................. ............................................................... ............. 3 3.3 检测周期 .............................................................. ............................................................... ......................... 4 3.4 技术资料 .............................................................. ............................................................... ......................... 5 4 巡视检查 .............................................................. ............................................................... ............................ 5 5 外观检测 .............................................................. ............................................................... ............................ 7 6 材料检测 .............................................................. ............................................................... ............................ 8 7 腐蚀检测 .............................................................. ............................................................... ............................ 9 8 无损检测 .............................................................. ............................................................... .......................... 11 9 应力检测 .............................................................. ............................................................... .......................... 13 9.1 检测要求 .............................................................. ............................................................... ....................... 13 9.2 测点布置 .............................................................. ............................................................... ....................... 13 9.3 静应力检测 .............................................................. ............................................................... ................... 14 9.4 动应力检测 .............................................................. ............................................................... ................... 14 10 振动检测 .............................................................. ............................................................... ........................ 14 10.1 检测要求 .............................................................. ............................................................... ..................... 14 10.2 检测仪器 .............................................................. ............................................................... ..................... 15 10.3 测点布置 ..................................