2009年8月21日,华北电网公司董事长马宗林亲临工程项目部,慰问奋战在特高压直流示范线路一线的北京送变电公司员工。他说:“你们正在从事着一项伟大的事业,也在创造中国电力工业新的历史。同志们冒着高温酷暑,翻山越岭、夜以继日地奔忙在工程建设的一线,为了能够早日建成我国首条±800千伏特高压直流输电线路,付出了艰辛的劳动!” On August 21, 2009, Ma Zonglin, chairman of North China Power Grid Corporation, visited the project department and condolences to the staff of Beijing Power Transmission and Transformation Company who are fighting in the UHV DC demonstration line. He said: “You are engaged in a great cause, but also create a new history of China’s power industry comrades braved the hot summer, over the mountains, day and night in the engineering construction of the line, in order to be able to build our country as soon as possible The first ± 800 kV UHV DC transmission line, hard work! ”