Another major action taken by SAMR to promote the integration of domestic and foreign trade-the version change of CCC standards for audio and video equipment, information technology equipment and telecommunications terminal equipment will soon be launched
China compulsory certification, also known as CCC, is a market access system implemented by the Chinese government for products involving human health and safety in accordance with the principles of marketization and internationalization. At present, the CCC catalogue covers 17 categories and 103 products, including audio and video equipment, information technology equipment, telecommunications terminal equipment and other electronic products that consumers closely contact and use. With the continuous deepening of the reform of CCC system, the essential attribute of “ensuring the bottom line of safety” of CCC system has become increasingly prominent, and has played an important role in promoting product quality and protecting consumer rights and interests.
Considering that after the release and implementation of the new version of the national standard, higher requirements have been put forward for the design, R & D, production and sales of electronic product manufacturers, in order to enable enterprises to obtain the CCC certificate of the new version of the standard as soon as possible and ensure the smooth entry of relevant products into the market, SAMR will focus on the following aspects in the implementation of CCC.
The new version of GB 4943 national standard fully considers the new safety risks and hidden dangers brought by new technologies, new products and new applications closely related to the safety of people’s lives and property. For example, in recent years, the security problems caused by the increasingly extensive use of wireless charging. Consumers may place metal objects such as keys and coins on the wireless charger. The wireless charger may cause high temperature of metal objects through energy transmission and bring risks such as burns and fires. For this, the new version of GB 4943 national standard clearly requires that wireless chargers should have the function of identifying metal objects and stopping energy transmission to objects in time. For example, with the popularity of multimedia functions of electronic devices, mobile phones, headsets, Bluetooth headsets and other products with the function of personal music players are favored by consumers. However, if the volume of headphones is too high or the listening time is too long when wearing headphones, it will damage user’s hearing. The new version of GB 4943 national standard puts forward safety requirements from the aspects of earphone sound pressure level limit, which ensures the hearing health of consumers. For example, the new version of GB 4943 national standard requires that when the cumulative value exceeds the specified limit within a certain period of time, the electronic product should give a warning and ask the user to confirm it. If it is not confirmed, it will automatically reduce to a safe volume.For another example, more and more portable electronic products use rechargeable batteries for power supply, which brings safety hazards such as overheating, burns, fluid leakage, explosion, and endangers the personal and property safety of the people. The new version of GB 4943 national standard focuses on the safety of batteries, stipulates the safety requirements for overcharge protection, temperature protection, shell fire protection, fall protection and so on, and fully considers the short circuit of the battery by metal objects such as keys and necklaces, as well as the safety problems of liquid leakage, combustion, explosion and so on caused by the above problems.
First, the scope of application of the standard is different. The new version of GB 4943 national standard will incorporate the scope of application of the previous version of GB 4943.1-2011 and GB 8898-2011, covering audio and video equipment, information technology equipment and communication technology equipment, which is often referred to as “electronic products”. The new version of GB 4943 national standard is more in line with the development trend of continuous integration of equipment, covers the scope of three categories of equipment, and gives a unified safety framework and minimum safety baseline requirements. Therefore, the new version of GB 4943 national standard can better meet the current industry development needs.
Second, energy source classification and personnel classification are proposed. The new version of GB 4943 national standard classifies the energy source of the product and classifies the degree of injury caused by the energy source into three levels: “can be felt without pain”, “pain, but do not cause injury” and “cause injury”. For example, for the parts of electronic products with higher power level (energy source level) and easier to catch fire due to heating, materials with higher fire rating are required to be used for protection. The standard also divides the corresponding personnel into three categories according to their awareness and coping ability of daily contact with these products. Different categories of personnel have different awareness and coping ability of hazards, so different safety protection measures are adopted for different personnel and different energy source levels. For those parts that may cause serious injury to personnel without professional knowledge, double safety protection is adopted, while the same danger requires only general safety protection for professional technicians. The design of energy source classification, personnel classification and targeted safety protection measures of different levels adopted in the new version of GB 4943 national standard is more scientific and reasonable. This can not only ensure the bottom line of safety, but also prevent the function reduction and cost increase caused by excessive protection.
First, based on the particularity of the power supply and distribution conditions of Chinese buildings, electronic products cannot completely rely on the protection devices in building facilities to get protection. In the new version of GB 4943 national standard, stricter safety protection measures are adopted, requiring electronic products to have corresponding overcurrent protection devices, and isolation measures are required for protective and signal places.
Second, based on the particularity of China’s geographical conditions, technical differences in safety requirements are added. For example, international standards are mainly formulated for areas below 2000m above sea level, while nearly one third of China's land area is above 2000m above sea level, and a large number of people live there. Where the air is thinner, electrical breakdown is more likely to occur, resulting in electric shock injury. In order for the people in high altitude areas to use electronic products safely, the new version of GB 4943 national standard requires stricter requirements on air insulation when designing and manufacturing electronic products.
Third, based on the particularity of China’s climate conditions, technical differences in safety requirements have been added. Considering that China has a large area of tropical climate, and the high temperature and humidity under this climate will reduce the insulation performance of materials, the new version of GB 4943 national standard fully considers the impact of this tropical climate and introduces corresponding technical differences to ensure the safety of electronic products used by consumers in China’s tropical climate areas.
Download link:
https://std.samr.gov.cn/gb/search/gbDetailed?id=E4A2A4C875736A5DE05397BE0A0A61E8
GB 4943.1-2022 compulsory national standard “Audio and video, information technology and communication technology equipment-Part 1: safety requirements”
Source of information: CNCA