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SAST safeguards rail transport safety during CIIE
China sets up a stage, and the world performs chorus!
The 2nd China International Import Expo was held in Shanghai from November 5 to 10, 2019. More than 3,000 companies from over 150 countries and regions worldwide went to the CIIE. Everyone in the city of Magnolia has worked at full stretch and Shanghai Academy of Spaceflight Technology (SAST) has taken actions to safeguard the CIIE.
942,000 peoplehave been admitted to the CIIE from November 5 to 10. The subway stations, bus lines and ramps around the National Exhibition and Convention Center (Shanghai) are packed with people and the rail transport acts as the “artery” of traffic, according to the traffic command center of the Municipal Transportation Commission.
Shanghai Aerospace Power Technology Co., Ltd. (hereinafter referred to as “Aerospace Power”) under the SAST independently developed UPS, DC panel, platform screen door power supply complete system and vehicle-mounted backup traction power supply system based on lithium iron phosphate battery technology, covering all lines and stations of Shanghai rail transport, which is the key to ensure the safe operation and emergency support of rail transport.
Statistics show that there are 791,000 people in and out of East Xujing Subway Station, of which about 194,000 people were in and out the station on the peak day (Nov 8); 172,000 people in and out of Zhuguang Road Station, of which 36,000 people were in and out of the station on the peak day (Nov 6); 223,000 people in and out of Hongqiao Railway Station on an average day, of which 263,000 people were in and out of the station on the peak day (Nov 8). The massive data show the dedication of the security personnel.
From November 3 to 11, the company’s 15 after-sales and technical professionals formed a support team to escort the battle of the railway transport safety for 24 hours in six stations respectively, including Shanghai Metro Line 2 Hongqiao Railway Station and East Xujing station, Line 17 Zhuguang Road station and Zhujiajiao control center, Line 5 Zhuanqiao control center, and Shanghai Metro Maintenance and Support company power supply branch Beizhai road base. In the early hours of each day, the team shuttled through various quiet subway stations and carefully checked the operation of power supply products, ensuring the safe and stable operation of rail transit, according to Shen Lin, manager of Aerospace Power after-sales engineering.
“This is the second time we have carried out the safeguarding task of the CIIE, and last year we were rated as the best group in the external entities” Shen said, “They made a very detailed technical plan this time, trying to think of all possible situations-not only to ensure the closing and tripping of the circuit breaker during the normal operation of the subway, but also to ensure that the relay protection system can still work reliably under the accident state like when the grid and voltage drops or even disappears, and to ensure the safe operation of the substation at the subway station.
During this period, the security personnel at six sites report the situation at 8:00 a.m. and 20:00 p.m. every day in order to ensure that everyone is online. Battery failure occurred in the backup power supply of a screen door at Lantian Road Station of Metro Line 9 at 21 o’clock on November 11, when everyone enjoyed the Singles Day shopping spree. At 22 o'clock, Xie Gang and Wang Haowei, the company's technical support personnel, arrived at the site with spare parts. After the Metro was shut down at 23 o’clock, equipment maintenance and replacement were carried out immediately. Fault repair was completed at 1 o'clock in the morning, and they didn’t leave until the test operation was normal.
“Now, the CIIE has ended successfully, but our security work is not over yet,” Shen said. In order to meet the eager desire for the public to enjoy the exhibition, make all sectors of the society fully experience the great development achievements of the 70th anniversary of the founding of the People’s Republic of China, and further enlarge the spillover effect of the CIIE, the national comprehensive exhibition (5.2 Hall) will be opened to the public free of charge from November 13-20 (9:30-16:30 every day). The aerospace power support team is still quietly supporting 24 hours a day.
According to Shen, the products of aerospace power cover all lines and hundreds of stations of Shanghai railway transport. Each station has multiple sets of power supply products, and each set of products should be inspected once a year. Even without CIIE, their security work has been on the way. Statistics showed that the company has two or three groups of personnel in each site to carry out after-sales support every day, especially on national day, Spring Festival and other holidays, they still have to adhere to the duty and await orders all day.
An extraordinary event
With extraordinary drive
The aerospace people are always on their way to offer service assurance for the CIIE.
Let's share the future together in the new era.
Source: Shanghai Traffic WeChat public account provides some pictures