Does China's high-speed rail test speed exceed that of France?

No, at present, the highest test in our country is 520KM/H, and the French TGV runs 592 km/h. This test speed is of little significance. The railway mileage in China is too long, much longer than that in France. The test sprint has achieved a speed of more than 500 kilometers, but the stability of long distance is hard to say. A few years ago, China Star ran 280 kilometers in the test, and the next day it made a 32655 on the Qinhuangdao-Shenyang line. Axle temperature alarm, not after returning to the factory for maintenance, but the test speed will not exceed 220KM/H in the future. Later, it was a temporary express train with a speed limit of 160 from Shenyang to Shanhaiguan, which was still a problem. So it is ok to show the good side of this thing in our country. But it really takes time to test its stability.

You see, our high-speed train used to run at 350, but now it will be downgraded, with a maximum limit of 300. Why should the speed limit be lowered? The estimated stability is hard to say. Anyway, it's a wild guess based on my experience. The core technology is not something that an ordinary train driver can let me know.