The China-made metro rake also known as the Dalian rake which arrived in Kolkata three years ago in March 2019 is all geared up to undergo the necessary speed and stability tests. 13 more such rakes will be imported and inducted into Metro Railway’s existing fleet after the aforementioned trials are successful.
Only after the metro rake passes the oscillation test that checks the train’s lateral movement when it takes a bend at speed of 80kmph, will it be deemed fit for commercial operations. The Lucknow-based Research Design and Standard Operation (RDSO), which is the Indian Railways department that oversees safety standards of any new rake or Metro line, will soon be conducting oscillation trials.
A Metro Railway official in a conversation with Times of India said that the Dalian rake will hopefully pass the oscillation trials which are to be conducted sometime this month. Based on the Research Design and Standards Organisation (RDSO’s) report, the Railway Board will be in a position to take a call on procuring more rakes from China. The rake will also require a fitness certificate from the Commissioner of Railway Safety (CRS), the autonomous body under the ministry of civil aviation.
The eight-coach prototype of Dalian rake, manufactured by CNR Dalian Locomotive & Rolling Stock Co has undergone a series of tests at the Noapara depot ever since its arrival on March 3, 2019.
After the rake failed to meet certain requirements, a team of technical experts from China had come to Kolkata to make the necessary amends. But the process of resolving the issues was hindered as the technicians had to go back when the pandemic struck in March 2020. The team returned this year to address the issues.