On 12 October, SAC issued two mandatory EMC standards:

  • GB 14023-2022 Vehicles, boats and internal combustion engines—Radio disturbance characteristics—Limits and methods of measurement for the protection of off-board receivers
  • GB 17799.4-2022 Electromagnetic compatibility (EMC)—Generic standards—Part 4: Emission for industrial environments

1, GB 14023-2022

China has taken new energy vehicles as a strategic emerging industry in 2009, following by its rapid development in the following years. As a result, the former edition of the standard, i.e., GB 14023-2011, cannot catch up with the needs of the market.

GB 14023-2022 aims to synchronize China’s radio disturbance standard for vehicles, boats, and internal combustion engines with its international counterpart, and therefore satisfy the demands of international trade, technical and economic exchange, and quality certification.

GB 14023-2022 is applicable to vehicles propelled by internal combustion engines, electrical means, or both; ships propelled by internal combustion engines, electrical means, or both; and devices equipped with internal combustion engines or power batteries.

Compared with the 2011 edition, GB 14023-2022 puts forwards new requirements for the test configuration of EMI emission test of new energy vehicle under charging mode, defines the impedance stabilization network (ISN) for the charging mode test, and sets requirements for measuring apparatus’s uncertainty and EMI Test Site Validation.

In the development of the standard, international standard IEC CISPR 12:2009 was referenced, but modifications were made according to Chinese market’s actual situation. Therefore, overseas enterprises should take note of these modifications and identify the possible impacts that they will bring.

GB 14023-2022 will come into effect on 1 November 2023.

2, GB 17799.4-2022

In the environment that industrial electromagnetic pollution is inevitable, in particular some industrial locations where electromagnetic radiation is severer that other sites, how to reduce its damages while maintaining the industrial equipment operating properly is a topic that needs continuously in-depth study.

GB 17799.4-2022 aims to provide an adequate level of protect to radio equipment that are operating at the frequency band of 9Hz~400GHz in industrial environment, like high-power industrial, scientific, and medical equipment, thus increasing the efficiency of industrial production and reducing the operation and maintenance costs.

GB 17799.4-2022 doesn’t consider all interference phenomenon but those related to the equipment covered by the standard and stipulates test requirements for all related interfaces.

The standard is identical to IEC 61000-6-4:2018 and will take effect on 1 November 2023.