CRH2G alpine EMU independently developed by CRRC Sifang

On November 10, CRH2G alpine EMU independently developed by CRRC Qingdao Sifang Locomotive and Rolling Stock Co.
, Ltd.
(hereinafter referred to as "CRRC Sifang Co.
, Ltd.
") obtained the "type certificate" and "manufacturing license"
issued by the State Railway Administration.
The CRH2G alpine EMU has a speed of 250 kilometers per hour and adopts a formation of 8 cars
.
The design of the front of the car is inspired by the "horse", the shape is rigid and soft, with a sense of power and speed, and when running at high speed, it is like a galloping horse
.

As a new cold model of China's high-speed railway, CRH2G alpine EMU has overcome the five technical problems of cold resistance, wind and sand resistance, high temperature resistance, high altitude adaptation, and UV aging, and can adapt to the harsh operating environment such as high cold, wind and sand, and high altitude at the same time, which is another major technological innovation achievement
in the field of high-speed EMUs in China.
Its successful development has provided a more adaptable EMU model
for China's high-speed railway lines in alpine, desert and plateau areas.
It is expected that by the end of 2015, CRH2G will be officially put into operation
on the Lanxin high-speed railway.

"CRH2G has high cold and high temperature resistance technology, and can operate
normally in extreme climate environments from minus 40°C to minus 40°C.
" Cheng Jianfeng, senior director designer of CRRC Sifang Joint Stock Company, said
.

It is understood that CRH2G uses a large number of new materials and technologies to solve the problem
of cold and high temperature adaptability.
The materials, grease and electrical components used in the EMU have passed the low temperature resistance test of minus 40°C, which has upgraded the cold resistance
.
At the same time, the R & D personnel carried out the cold adaptive design of the bogie, and created original technologies such as "spraying antifreeze" and "high-pressure blowing wind and snow removal", which effectively alleviated the problem of snow and ice on the bogie in cold and snow weather and ensured the safety and reliability
of the EMU.
In cold environments, condensate is easy to return, but CRH2G adopts a sealed design and diversion design to avoid failures caused by condensation
.
In addition, the air conditioning system has been optimized
for high cold and high temperature.

Through a series of innovative technologies, the CRH2G can withstand huge temperature differences from minus 40°C to minus 40°C
.
"When the temperature outside the car changes by plus or minus 40°C, the temperature inside the car can be kept constant at about
20°C.
" Cheng Jianfeng said
.