China Educational Equipment Purchasing Network: China's high-speed rail has attracted much attention as the fastest high-speed rail in the world. Recently, the successive train accidents have caused the high-speed rail to pay a painful price after the radical development. A difficult decision: high-speed rail, speed reduction and price reduction. However, just a few days after the speed reduction and price reduction, on August 10, CNR issued an announcement to recall the 54 large columns of CRH380BL action car units produced by the subsidiary and already in operation, because the sensors in the EMU caused abnormal parking.
According to Zhao Minghua, deputy general manager of CNR Changke and the project manager of the high-speed EMU, "the direct cause of the failure is the insufficient insulation of the sensor, which has caused the shielding layer of the sensor that plays an anti-interference role to be burned out, and the sensor malfunctions to send an error signal. "Of course, such an accident will only cause the train to stop automatically, will not have any impact on the safety of the train, and will only delay the train's journey.
At present, two CRH380BL EMUs used in the Beijing-Shanghai line have this failure in succession in China. At present, CNR Group is conducting a comprehensive survey of CRH380BL EMUs that have been delivered and not delivered, and it is expected that normal delivery will resume in about one. (Xie Yinan / Editor)
NINGBO MACEY EDUCATION PRODUCT CO.,LTD , https://www.maceytoys.com