Today is a holiday for workers. At construction sites and service sites in various places, there are some people who stick to their posts, fight on the front line, ensure project progress, ensure reliable power supply, and light up thousands of lights. Day and night, they use sweat and effort to interpret the beauty of labor, showcasing the rich connotations of labor creation with excellent performance, constantly inspiring the spiritual strength of forging ahead. On International Labor Day, lets get closer to the workers of State Grid and feel their original intention and perseverance.

High enthusiasm for the construction of the Fujian Guangdong Internet of Things project

Everyone should pay attention to safety and follow the established route. "In the earthwork backfilling area on the high slope east of the main station area of the Fujian Guangdong Interconnection Project Converter Station, Li Xiaopeng, the deputy project manager of Fujian Power Transmission and Transformation Company, is busy directing the earthwork backfilling." Since entering the site at 7 oclock until now, 20 earthwork transport vehicles have traveled back and forth 6 times, backfilling 1800 cubic meters of earthwork

The construction site of the Fujian Guangdong Interconnection Project converter station located in Shiqin Village, Mapu Township, Yunxiao County, Zhangzhou, Fujian is bustling. At present, the civil construction of the converter station has been fully started, with more than 60 construction personnel working simultaneously on site. We strive to complete the four connections and one leveling of the converter station before September, "said Liu Zhaoren, director of the office of the Fujian Guangdong Interconnection Project Leading Group.

State Grid Fujian Electric Power Construction personnel are carrying out earthwork excavation operations in the main station area of the Fujian Guangdong Interconnection Project.

The excavation and backfilling of earthwork is one of the key links in the civil construction of the converter station. The Fujian Guangdong Interconnection Project converter station covers an area of 304.5 hectares, with an estimated excavation and backfilling volume of 900000 cubic meters, and a maximum slope height of 40 meters. The scope of engineering operations is large, the ground elevation difference is large, and the construction standards are high. The construction project department shall reasonably plan the travel routes of transportation vehicles, ensure the orderly and efficient connection between excavation and backfilling, and strengthen the safety training of drivers of earthwork transportation vehicles to ensure the safe progress of on-site construction.


At the construction site, there is a 15 ton water spray truck that shuttles back and forth to carry out dust suppression and cleaning. "The converter station is located next to the provincial road, and the traffic volume is large. We arrange water spray trucks to drop dust and keep clean at the construction site all day long, and operate continuously without polluting the environment," said Li Xiaopeng. In terms of green construction, in addition to on-site dust reduction and cleaning, the project department also strictly implements the standardized and civilized construction requirements of "clean materials after work and clean the site", and does a good job in site cleaning.

Soil wall collapse is the main risk point for earthwork excavation and backfilling, and the construction project department has adopted different slope support methods for different areas on site. For the excavation slopes located on the east and north and south sides of the station site, we adopt a direct slope scheme and set up drainage ditches at the bottom of the slope to collect water from the slope surface and discharge it to the county road drainage ditch. The filling slope on the west side of the station site adopts a natural slope scheme, with a slope ratio of 1:1.5, and the rest of the filling slopes are supported by slope and reinforced soil retaining walls, "said Chen Zhengjing, the chief engineer of the project, pointing to the slope.

During the May Day holiday, the Fujian Guangdong Interconnection Project converter station will not stop work, and 70 management and construction personnel will stick to their posts to ensure the completion of construction tasks according to the planned milestones. Although we cannot reunite with our families during holidays, everyone is full of enthusiasm for participating in such an important construction project, "said Li Xiaopeng.

The construction of Baihetan Jiangsu ultra-high voltage direct current project is busy

Attention everyone, when starting the work later, do not stand under the lifting arms of large machinery such as rotary excavators and cranes to avoid being hit or bumped. "In Riga Village, Temuli Town, Butuo County, Liangshan Yi Autonomous Prefecture, Sichuan Province, the construction site of the N0022 tower foundation of the Baihetan Jiangsu ± 800 kV high-voltage direct current transmission line project (Chuan1 section) constructed by State Grid Sichuan Power Transmission and Substation Construction Co., Ltd., the construction team leader Yuan Yongguo is conducting a station briefing for the team members. Their task today is to mechanically excavate and pour the N0022 tower.


In the early morning, Riga Village was enveloped in silence, accompanied by the rising sun on the hill opposite the tower, and the entire village was still immersed in sleep.


Lets start! "Yuan Yongguo ordered, breaking the tranquility. Immediately after, various sounds such as footsteps, discussions, and machines mixed together, creating a lively atmosphere. The construction workers began their busy day.


Xiao Zhang, the drill bit needs to be moved a little further to the right, "technician Liu Kunping stood 5 meters opposite the D-leg pile position, shouting at the operator of the rotary excavator with his throat pulled, while gesturing with his hand.

The operator quickly adjusts the position of the rotary excavator drill bit by pulling the operating rod, accurately positioning it above the pile foundation. Upon hearing the excavation command, the circular drill bit with serrated teeth is operated to twist left and right, loosening the soil while collecting the remaining soil into the bucket. After the bucket is filled, the remaining soil is moved to the side by contracting the boom, and then the excavation operation is carried out in a circular manner. The rotary excavator is busy excavating, and the excavators next to it are not idle either. Like diligent ants, they clean up the accumulated soil and transport it to a fixed stacking area, freeing up enough working space for the rotary excavator.


Yuan Yongguo introduced that the entire Chuan 1 section crosses the hinterland of Daliang Mountain at an altitude of 3000 meters, with a total length of 109.944 kilometers. 271 new iron towers need to be built, and the entire line is constructed in mountainous areas, including mountains, hills, and high mountains. The terrain is complex and diverse, and the winter is cold and long-lasting, with a short effective construction time per year. At the same time, the construction of this section officially started on February 28, 2021. The project plan is to have live conditions by May 2022, with a tight schedule and heavy tasks. In order to solve the difficulties of time-consuming and labor-intensive manual excavation operations in mountainous areas, the project team conducted repeated site surveys in the early stages of the project, and based on the geological characteristics of each tower location, developed targeted plans and operation schemes for mechanized foundation construction to improve construction efficiency.


We use this mechanized construction method for all 58 tower positions on our entire line. Compared to manual operation, the number of workers has been reduced from 200 to 81, and the construction efficiency of a single team has increased from 1 tower per day to 1 tower per day, greatly reducing personnel input and improving efficiency. "said Tian Weili, the project manager who came for inspection.

This section has increased investment and vigorously promoted mechanized construction in mountainous areas. Two rotary drilling rigs, one set of concrete mixing equipment, three 25 ton or above truck cranes, one cage rolling machine, seven concrete tankers and other large machinery have been put into use for foundation excavation and pouring work. Under the same construction period requirements, personnel input has been reduced by 60% compared to conventional manual operations, and manpower input has been greatly reduced, overcoming the systemic risks brought by large-scale personnel input in mountainous foundation excavation and deep excavation environments. During the 45 day construction period, the mechanized construction section of this section completed 52 foundation excavations and 42 foundation pouring works, improving construction efficiency.


Its been a tough morning, everyone, come and have lunch. "In the blink of an eye, it was already noon, and Mr. Zhao, who was delivering lunch to the construction workers, arrived at the N0022 tower with hot and fragrant food, shouting for everyone to come and taste his good craftsmanship.


Groups of three or five construction workers gathered together, surrounded by a large pot of steaming vegetables, eating and chatting, relieving the fatigue of working continuously for more than 5 hours a morning. After hastily dealing with lunch, the roar of machines echoed in the mountains again, and the workers became busy.

24-hour standby in overseas engineering construction

The Ramadan in Saudi Arabia in 2021 has arrived as scheduled, and like April and May every year, the weather is gradually getting hotter. For the Saudi smart meter project team of China Electric Equipment Company, this is a different Ramadan - not only does it coincide with Labor Day, but it is also the final critical stage for eliminating defects in the Saudi smart meter project. Five million electricity meters have been physically installed, and half of them travel a hundred miles. At the critical moment, everyone gritted their teeth and no one dared to slack off.


At 7am on April 30th, the HES system used for electricity information collection remotely reported that there were electricity meters in residential areas of Jeddah that had not been successfully registered and displayed abnormalities. The defect elimination team of the Saudi Smart Meter Project West Zone Project Department immediately rushed to the site with a professional team. Through inspection, it was found that the electricity meter is located in a confined space inside the apartment building, and the wireless signal is blocked. After on-site analysis, it was decided to transfer and install a nearby concentrator under the transformer of the apartment building, connect it to the electricity meter, and use wired communication to achieve the connection between the electricity meter and the HES system. In less than an hour, the electric meter showed a successful connection on the HES system display. At this time, the temperature had exceeded 30 degrees, and the bright sun shone brightly. The defect elimination team didnt care about the hot weather and hurriedly rushed to the next defect elimination location.


At 2pm in the Abaha office, the defect elimination team of the South Project Department was discussing ideas for improving KPIs. The project is about to complete the installation phase and enter the operation and maintenance phase. During the operation and maintenance phase, the owner will have extremely strict requirements for various indicators such as automatic meter reading. Although the assessment period has not yet begun, everyone has started to carry out preparatory work intensively. Before this meeting, the project team has sorted out various typical problem scenarios, defect elimination solutions, and methods for identifying and handling special situations on site. After analysis and discussion, they will develop short-term and long-term defect elimination strategies and KPI improvement plans.

The defect elimination team of the Saudi Smart Meter South Project Department conducted a seminar at the Abaha office

In the evening, the Riyadh project team received a notice from the project owner, Saudi Electricity Company, requesting a work meeting to be held at the companys headquarters at 10 pm. During Ramadan, due to fasting during the day, the working hours of Saudi homeowners are very irregular. Some people are accustomed to resting during the day and working at night, while others are the opposite. The project team needs to be on standby 24 hours a day and respond promptly to any needs, as everyone has become accustomed to it. At 9:50 pm, the Riyadh project team arrived at the meeting venue ahead of schedule. At the meeting, there was a heated discussion with the owner regarding the handling of outstanding issues in the final stage of project installation, issues that require collaboration with the owner and other partners, and work plans for the operation and maintenance phase. The atmosphere in the late night conference room was lively, and the lights were on until late at night. At the end of the meeting, it was already past 2 oclock in the morning. The project team drove back to their residence, feeling a bit tired, but more rewarding.

The Saudi Arabia Smart Meter Project is a major project implemented by the Kingdom of Saudi Arabia to achieve the "2030 Vision". It is an important component of Saudi Arabias construction of smart grids and smart cities, and is currently the largest single deployment smart meter project in the world. It is constructed and implemented under the general contracting of China Electric Power Technology Equipment Co., Ltd. Since the start of construction on December 19, 2019, the project department has always been ahead of local competitors in the installation of electricity meters and the development and deployment of the main station system, achieving the "double zero" of non-stop and steady progress of the project and epidemic prevention.

As of now, the project has completed the physical installation of 5 million smart meters, and the communication integration and other defect elimination work of a small number of meters are being carried out in an orderly manner. In the future, China Electric Power Equipment Company will also undertake at least two years of operation and maintenance work. During the operation and maintenance period, while assisting the owners to ensure the successful operation of the entire smart meter system, personnel training will also be provided to help the owners build a high-end talent team that masters the control and operation technology of the smart meter system.

Labor is the most glorious, struggle is the happiest. During the May Day Labor Day, there are still many frontline workers of State Grid who stick to their posts, interpret their responsibilities with their hands, and celebrate their own holiday with diligent work.