In recent years, my country\'s urban rail transit industry has developed rapidly, and how to ensure the safe operation of high-speed trains has become a hot spot for all parties. High-speed EMUs have complex structures and high service life requirements, and systems engineering theory must be used to study their reliability and maintainability. The following is the relevant content about the reliability test of rail transit products, let\'s take a look together.

Charging piles are used to charge our electric cars. It is like a gas machine, refueling a gas truck at a gas station. Charging piles are usually designed as a single charging station and are usually connected to a 220-240 VAC power source. The station reduces it to a lower DC voltage and charges the vehicle with a fairly low DC current. Charging piles can be fixed on the ground or on the wall, installed in various public places, residential areas and charging stations, and then charge various types of electric vehicles according to different voltage levels. However, if charging piles want to be sold safely in the EU, CE certification is required.

Currently, there are two mainstream standards for fire testing of rail transit materials, specifically: the European standard EN 45545 and the American standard NFPA 130. Among them, EN 45545 EU rail transit fire protection standard was officially released in 2013 and revised in 2015. It has officially replaced the German standard DIN 5510-2, British standard BS 6853, French standard NF F16-101, etc., and has become mandatory in European countries. The new rail transit fire protection standard, EN 45545 standard has also been widely used in China and Southeast Asia.

On March 12, 2021, India’s BIS issued a notice, extending the implementation time of the fifth batch of BIS compulsory certification products released on October 1, 2020 from April 1, 2021 to October 1, 2021.

On March 9, 2021, the European Chemicals Agency (ECHA) announced the launch of a public comment on 8 potential substances of very high concern (SVHCs). The comment period will end on April 23, 2021. During this period, all stakeholders All comments can be submitted to ECHA. The approved substances will be included in the SVHC candidate list as the 25th batch of substances.

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The smart speaker is a product of a speaker upgrade. It is a tool for home consumers to use voice to go online, such as on-demand songs, online shopping, or understanding the weather forecast. It can also control smart home devices, such as opening curtains and setting refrigerator Temperature, let the water heater heat up in advance, etc. Now this kind of wireless smart products are widely welcomed by people at home and abroad. However, if my country\'s mini smart speakers want to export to Japan, they need to apply for TELEC certification.

Headphones, as the name suggests, are worn on the head instead of inserted into the ear canal, which is different from in-ear earphones. It is composed of two parts, a signal transmitter and a headset (usually a moving coil) with a signal receiving and amplifying device. However, if you want to export wireless headsets to the United States, you need to apply for FCC-ID certification.