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.

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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.

With the continuous improvement of living standards now, tablet computers have been popularized in almost every family. Tablet computers are not only popular in the domestic market, but also have good sales in foreign markets. However, there are clear provisions in EU regulations that electronic products need to be exported to the EU. To apply for CE certification, and tablet computers belong to the category of electronic products. Naturally, it is necessary to apply for CE certification if you want to export to the EU market.

In today’s Internet era, routers are not unfamiliar to us. Nowadays, wherever we go, there are wireless networks, so the usage of routers is very large, but routers are telecom terminal products. If you want to sell them in the domestic market, Must apply for 3C certification.