From 18:00 on the evening of April 10, many places in Heilongjiang issued a blue cold wave warning. The local gusts in Mudanjiang area reached 9-10 levels, accompanied by strong convective weather such as thunder, lightning and strong winds, which brought great challenges to the safe operation of the power grid. Facing the first round of extreme weather this spring, State Grid Mudanjiang Power Supply Company quickly organized more than 300 power maintenance personnel and more than 60 emergency repair vehicles in order to reduce the impact of severe weather on the power grid and equipment, actively respond to strong winds and dusty weather, and ensure the safety of the power grid Stable operation.
On the evening of April 10, emergency repair personnel from State Grid Mudanjiang Power Supply Company fought fiercely in the cold night to complete the emergency repair work. Zhao Bo/photo
At 18:00 on the same day, extremely severe weather such as strong winds and thunderstorms of magnitude 10 had a strong impact on the power supply lines in Mudanjiang Hailin and Ning'an areas, causing the 16 base poles in Hailin area to fall and break, and the 28 bases in Ning'an area to fail. The base electric pole has fallen and broken poles. After the disaster, the State Grid Mudanjiang Power Supply Company quickly dispatched 135 emergency repair personnel to the accident repair sites in Hailin and Ning'an to start the emergency repair work with all their strength. "Emergency repair team members must pay attention to safety. We must overcome difficulties such as low temperature at night, strong wind and thunderstorm, complete power transmission as soon as possible, and report any situation at any time..." The emergency repair personnel fought hard in the cold night for 12 hours and completed it in the early morning of April 11. All emergency repair work.
"In windy and sandy weather, everyone must inspect the line carefully, especially when inspecting the user's greenhouse, and actively work with the user to fix the greenhouse to avoid the shed cloth being raised, resulting in insufficient safety distance from the wire, and comprehensively check the surrounding floating objects. Whether it is cleaned up, whether the color steel plate house is firm, and avoid causing line failures..." In the early morning of April 11, the urban power maintenance personnel of the State Grid Mudanjiang Power Supply Company stepped up inspections of the surrounding vegetable greenhouse bases and other areas, and the commanders in charge of safety went out for inspections The staff on the line exhorted carefully.
On that day, the windy and sandy weather in the Mudanjiang area escalated, and the wind raged, blowing the whole sky dark. In the face of severe weather, more than 300 power maintenance personnel of the State Grid Mudanjiang Power Supply Company carried out special inspections of the line in windy and sandy weather on the premise of ensuring travel safety. Focus on checking the plastic greenhouses, overgrown trees and floating garbage in the line channel, and at the same time check the connecting hardware, insulators and other equipment on the pole tower, and ask the window service personnel to explain the power failure caused by the strong wind and sand to the customer.
On April 11, Zhang Jinpeng and Liu Yunlong, the substation operation and maintenance employees of State Grid Mudanjiang Power Supply Company, visited the 110 kV Mudanjiang Jiangnan substation to ensure the safe and reliable operation of the equipment. Zhang Jian/photo
Up to now, the power maintenance personnel of State Grid Mudanjiang Power Supply Company have discovered 42 defects caused by bad weather during the inspection process, and have completed the elimination in time. The company will closely track weather trends, grasp the operation of the power grid in real time, and be prepared to meet the challenges, so as to ensure the safe and reliable use of electricity by the people in the power supply area in windy and dusty weather.