The roof temperature reaches 45 ° C!The tram -free tram is "heat stroke"!How to do?
Author:Shanghai Transportation Time:2022.08.15
Hot and hot!
Shencheng Double Truth issued a high -temperature red warning
People will meet the heat stroke,
New energy buses will also "heat stroke."
Repair workshop in the parking lot of Shenkun Road, China Transport 71
A group of post -90s car repair workers are being treated with sweating
New energy -free tram of "heat stroke"
The roof temperature reaches 45 ℃
Under the scorching sun, the sun is baking in a row of China -China transport 71 new energy buses. Although it is a new energy vehicle, there is still a "braid" trackless tram. The battery is installed on the roof. Although it is more safety, it brings another problem: afraid of heat.
"Because at high temperature, the battery will start the self -protection process, which will not be charged in, and at least it can only be charged 50-60 % of electricity, so we need to strengthen remote monitoring and daily inspections." Gu Haidong, 31, has been engaged in bus repair. It's been a year old. Although he entered the line in 2016, although he was a young "old master", he also slowly explored from machinery to mechanical and electrical integration.
There are 68 new energy buses in the 71 bus line 71, and the repair workshop consisting of 14 people is maintained and operated. In this team, there are 4 post -90s. Gu Haidong's partner Liu Mingyong is also a post -90s generation, just after a year ago from another repair workshop.
At this time, a reporter of a reported 71 routing entered the repair workshop. First stop at the small building -inspection starts from the top. Gu Haidong and Liu Mingyong ran to the second floor and went down to the roof. Due to the regulations, it is necessary to disinfect before repair, and it can be repaired for half an hour before entering the workshop. Therefore, the temperature of the entire car is very high. The thermometer showed that the roof temperature at this time even reached 45 degrees.
"The highest reporting rate is the collection pole, that is, the 'small braid' on the roof, sometimes it bumps, sometimes it is broken, and sometimes the air pressure is insufficient." Gu Haidong put on insulating gloves and checked the long rope of the electric rod. Is there any aging and damage, and then see if the pump is damaged and leaked, and whether the lock rod is locked.
The roof temperature is close to 45 ℃
After checking the roof, then go downstairs to check the body. At this time, the inspector had stopped the car above the ditch. Gu Haidong opened the rear cabin of the vehicle and carefully checked the fixing of the wiring beam. "These wire beams are bandaged. At high temperatures, the electrical electricity is too large, and the wire beam will burn to form a trace of burnt."
Take a wrench and wait for the car repair tool to hang the "vehicle maintenance" brand, and the two young people tied into the carriage. The vehicle does not pass during maintenance, there is no air conditioner in the carriage, and it is sweltering like a oven.
I'm afraid that the gloves will stain the facilities. Gu Haidong and Liu Mingyong take off their gloves, check whether the handrails, handle and seats are loose, and see if the safety hammer and fire extinguisher are "on -the -job". Each check is reflected in the subtle place.
From "Xiaobai" to "Old Master"
It is understood that the volume 71 is a long model, and there are schemes in the middle of the carriage. Gu Haidong and Liu Mingyong opened the stirred disk to check the mouth, check whether the oil pipes in the inspection are damaged, and whether the dishes are located to locate the sensor and wiring beam damage. After a while, the work clothes of the two had been soaked by sweat.
In the last step, check the bottom of the car. Gu Haidong went down to the groove and checked whether the straight lever ball head and cross lever ball head was loosened, and the airbags were leaked. These are the must -check items. If it is broken, the car will "have no direction".
Master Gu's clothes is soaked
The drilling ditch inspection and repair of the car are the daily life of repairing workers. Standing in a deep and narrow ditch in more than 1 meter and narrow, you need to sip your back and move your knees. "Baked", Gu Haidong when he came out, was soaked in his body.
"When the new energy vehicle was started for the first year, everyone had no experience. It used a physical cooling method such as water spray to ensure the charging volume. It has been 5 years. Now this method is basically not used. Instead The vehicle electricity is low, and the amount of charging is less. After returning, enter the workshop to check to eliminate the problem in time. "Under Gu Haidong's instructions, the reporter saw the backstage on the computer, which is the" new energy vehicle monitoring system ".
I can see that the computer screen can see all the operating vehicles 71 on the map, and after clicking, you can also see how much electricity and five -in -one temperature of each car are left.
Gu Haidong admitted that 5 years ago, when facing new energy vehicles, he was also a "little white". Now, in addition to the 71st road in China, this 14 -member maintenance team is also responsible for the maintenance of the T2 line T2 line T2 Line 748 and China Transport 71. Due to high temperatures, the amount of maintenance is doubled. There will be more than 10 vehicles reporting every day, and the vehicles will be maintained according to the kilometers.
However, these young repair workers are not afraid of tiredness or heat. For them, they must fight speed and maintain quality to ensure the safe and orderly operation of urban public transportation.
Source: Jiuwan Bus
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