Chao News client reporter Shi Xiongfeng correspondent Fu Yunxiao Wu Chen
At 1 o'clock in the morning on June 28, on Qinshan Street in Lin'an, Hangzhou, when a 300-meter-long cable was successfully connected to the ring main unit, more than 50 people present threw away the sticky feeling brought by sweat and rain, and the strings that had been tense for more than ten hours could finally be relaxed, which also means that the electricity in several surrounding communities will be the same as before the flooding, reliable and stable.
Go back 12 hours.
At noon the day before, Qian Sheng, the high-voltage squad leader of the Jincheng Power Supply Station of the State Grid Hangzhou Lin'an District Power Supply Company, was inspecting the line and found that due to the rising water level of the Qingshan Reservoir, an outdoor ring main unit on Qinshan Street was at risk of flooding and needed emergency treatment. "It's going up a little bit fast." Qian Sheng was looking at the heavy rain outside the window while studying the water level of the Qingshan Reservoir. Sure enough, at the site of a ring main unit, water from a small pond nearby had overflowed the roadbed. Once the water level rises again, the RMU is likely to be at risk of water ingress.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company
Under such circumstances, the State Grid Hangzhou Lin'an District Power Supply Company decided to isolate the ring main unit that may be flooded and use emergency power generation vehicles to protect electricity. "The electricity consumption of users in the surrounding communities is normal, and we just eliminate possible faults in advance." Cao Yue, deputy director of Jincheng Power Supply Station, said. In order to ensure the electricity consumption from the switch station to households, the company urgently dispatched one power generation vehicle and one generator to continuously supply power to more than 50 households.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company
29.93m, 30.03m, 30.11m...... The rain is getting heavier and heavier, but the water level at the Castle Peak Reservoir is still rising. "This time, the water level rises too high, and the ring main unit will be flooded, and the staff are wading through the water to check the water level of the ring main unit." Cao Yue explained.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company
In addition to taking the initiative to find hidden dangers and actively isolating, the State Grid Hangzhou Lin'an District Power Supply Company, including the operation and maintenance department, the safety supervision department, the local power supply station, the power engineering branch and the live operation branch, a number of departments jointly "operated", formulated an emergency plan on the spot, and finally decided to connect a new cable to connect the two switch stations that were not flooded while the emergency power generation vehicle continued to supply power to ensure the safe and stable operation of the line.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company
At 10:02 p.m. the night before, the 5-ton, bowl-thick cable began to be put into the cable trench, and this is only the first link in the third road, and there is a series of work to be carried out such as the production of cable heads and the front insertion of ring main unit cables. "The situation is special, whether it is the cable or the construction personnel, it is a 'special case', we have reduced the operation time from 8 hours to 3 and a half hours, and do our best to ensure the safety and stability of the line." Ren Yongjun, the person in charge of on-site construction, said.
"Line transfer + generator power protection", such a rush repair mode makes Lin'an's electricity consumption stable in heavy rainfall, but it is not very easy to stick to the power generation vehicle. The duty work is a group of 4 people, and the shift is 48 hours.
In order to ensure the normal operation of the power generation vehicle, every half hour, the staff has to check the operation and operating parameters. Taking advantage of the gap between the two inspections, Qianbin, one of the power generation truck guards, set the alarm clock on his mobile phone, sat on the side of the road with a hard hat and fell asleep.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company
"At that time, I had been on duty on the power generation truck for more than 40 hours, and after confirming the operation of the equipment, I sat aside to rest, but I didn't expect sleepiness to hit and set an alarm clock to squint for a while." Qianbin said, "It is false to say that it is not hard, but it is the responsibility of our power people to ensure power supply." ”
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