Held annually in Las Vegas, the Consumer Electronics Show (CES) is a highly anticipated technology event for tech enthusiasts around the world, showcasing many of the latest technologies and products. This year, the spotlight at the exhibition is focused on cutting-edge artificial intelligence technology. At the same time, major manufacturers such as Apple, BOE, Microsoft, and Lenovo are actively preparing to launch electronic products equipped with AI technology, including Vision Pro, smart displays, and AI personal computers, creating a smarter lifestyle for consumers.

The devices we interact with every day, such as audio, video, information, and communication technology equipment, form a vast interconnected ecosystem within this AI revolution. Although many manufacturers are joining the AI trend, in many cases they are simply reintroducing familiar electronic products with added AI capabilities. These smart electronic products must still undergo rigorous testing to comply with the electrical safety requirements of GB 4943.1. In this article, we will take an in-depth look at the testing requirements and testing solutions specified by GB 4943.1.

GB 4943.1 serves as a protective line of defense. It not only ensures that smart electronic products deliver excellent performance during use, but also places user safety above all else. Therefore, smart electronic products must undergo a series of stringent electrical safety tests, including dielectric withstand voltage, insulation resistance, ground bond resistance, and leakage current tests.

• Dielectric withstand voltage test: Based on the insulation class of the smart electronic product, a basic insulation test is performed between the enclosure and exposed metal parts. The test voltage ranges from 1,000 to 3,000 V, and the test duration is 60 seconds. For routine production-line testing, the test time may be shortened to 1 second.
• Ground bond resistance test: Apply 200% of the protective current to the smart electronic product, typically at 30–40 V, for 120 seconds. The resistance measured between protective earth and the enclosure must not exceed 100 mΩ. The 200% protective-current condition, typically at 30–40 V, must be maintained for 120 seconds.
• Leakage current test: Also known as a touch current test, this test connects exposed non-conductive parts to a human-body simulation measuring device (MD). An operating voltage of 110% is applied to determine whether the leakage current generated while the AI electronic product is operating exceeds 3.5 mA. If the leakage current exceeds 3.5 mA, it may pose a serious electrical hazard to the human body.

EEC provides comprehensive electrical safety testing solutions for smart electronic products, including the ESA Series multifunction electrical safety tester and the EAL-5000 Series programmable AC power source. These solutions can meet the testing requirements of various smart electronic products.

The ESA Series is a multifunction electrical safety tester that integrates AC/DC dielectric withstand voltage testing, insulation resistance testing, AC ground bond resistance testing, and leakage current testing into a single instrument, meeting all electrical safety testing requirements specified by GB 4943.1.

The EAL-5000 Series supports AC, DC, and AC+DC output modes. Its versatile performance meets a wide range of power supply requirements, providing output voltages up to 310 V, frequencies up to 1,200 Hz, and multiple waveforms to simulate real-world power conditions.

In addition, EEC provides SPACE9180 software for remote control of EAL Series testers. To meet the growing wave of artificial intelligence, EEC is ready to become your trusted partner and help ensure the electrical safety of smart electronic products.