摘要
耐张线夹的质量直接影响输电线路的安全稳定运行。对上海某220 kV输电线路工程耐张线夹进行金属技术监督专项检测,通过宏观检查和渗透检测发现,耐张线夹焊接部位存在弧坑裂纹、气孔、咬边、未焊满等缺陷,提出了加强耐张线夹加工制造、到货抽检、压接安装、在运排查等措施,以提升耐张线夹的投运质量,保障电网安全。
The quality of strain clamp directly affects the safety and stability of transmission lines.A metal technical supervision detection was conducted on the strain clamp of a 220 kV transmission line project in Shanghai.Through the macroscopic inspection and penetrant testing,it was found which existed welding defects of cracks,porosity,edge biting,incomplete welding in the welded joints of strain clamp.Some measures are put forward to improve the operation quality of strain clamp and ensure the safety of power grid,including improving the strain clamp processing and manufacturing,sampling inspection on arrival,crimping installation and inspection during operation.
作者
骆国防
章学兵
赖江波
LUO Guofang;ZHANG Xuebing;LAI Jiangbo(State Grid Shanghai Electric Power Research Institute,SMEPC,Shanghai 200437,China;State Grid Qingpu Power Supply Company,SMEPC,Shanghai 201799,China;State Grid Xinyuan Xin′anjiang Hydropower Plant,Jiande 311600,Zhejiang Province,China)
出处
《电力与能源》
2022年第2期132-134,158,共4页
Power & Energy
关键词
耐张线夹
渗透检测
缺陷分析
strain clamp
penetrant testing
defect analysis
作者简介
骆国防(1972-),男,高级工程师,主要从事电源侧(火电厂、水电厂、核电站等)、电网侧设备的金属(材料)技术监督、试验、研究工作
