Understanding Electrical Safety Testing for AI-Powered Devices

Every year, tech enthusiasts worldwide eagerly await the Consumer Electronics Show (CES) in Las Vegas—a stage for the latest tech trends. This year's spotlight was on AI technologies. Meanwhile, major players like Apple, LG, Microsoft, Asus, and Acer are gearing up to launch AI-powered devices such as Vision Pro, smart TVs, and PCs, promising a smarter life for consumers. The devices we interact with daily, including audio, video, information, and communication technology equipment, form a vast network of interconnected systems in this AI revolution. Even though all these companies are dashing onto the AI bandwagon, it is just old wine in a new bottle, implementing AI into electronic devices. New AI-powered devices must conduct strict testing to comply with electrical safety standards. In this article, let's delve into IEC 62368 testing requirements and explore testing solutions.

IEC 62368 Testing Requirements:

IEC 62368 acts as a guardian, ensuring that AI-powered devices not only deliver exceptional performance but also prioritize the safety of users. Therefore, it requires a series of electrical safety tests, including Hipot, Insulation Resistance, Ground Bond, and leakage current tests.

  • Hipot Test: Based on the insulation level of AI-powered devices, the testing voltage is applied at 2000V for basic insulation and 4000V for double insulation between the enclosure and exposed or accessible metal parts for 60 seconds. In routine production line tests, the duration can be shortened to 1-4 seconds.
  • Insulation Resistance Test: 500 V dc is applied between parts separated by insulation. The test is conducted for 60 seconds, with the resistance requirement set at greater than 2MΩ for basic insulation and 4MΩ for double insulation.
  • Ground Bond Test: Necessitates 200% of the protective current of the AI-powered devices (typically 30 – 40 V) for 120 seconds. The resistance measurement between GND and chassis should not exceed 100mΩ.
  • Leakage Current Test: Also known as the touch current test, involves connecting the exposed non-conductive part to a human-body-simulation measuring device (MD) and measuring whether the leakage current of the AI-powered device exceeds 5mA during its operation by applying 110% of the operational voltage. If its leakage current surpasses 5mA, there is a risk of electric shock or serious electrical hazards to the human body.

Comprehensive Testing Solution:

Ikonix offers a comprehensive solution for AI-powered devices, featuring the Associated Research OMNIA®II Multi-Function Electrical Safety Tester and the eec 8500 Series Programmable AC Power Source. This solution is designed to meet diverse testing requirements. The OMNIA®II Multi-Function Electrical Safety Tester integrates AC/DC Hipot, insulation resistance, AC ground bond, leakage current, and more features into one tester, meeting all IEC 62368 testing requirements. The 8500 series is capable of outputting AC, DC, or AC+DC modes, addressing numerous power demands with wide-ranging performance, offering up to 310V output voltage, 1,200Hz frequency, and various waveforms. This allows the simulation of real-world power distribution conditions. Additionally, Ikonix provides the WithStand® software for remote control of Associated Research testers and easier saving of testing data. To ride the wave of this AI transformation, Ikonix is ready to be your partner in ensuring the electrical safety of AI-powered devices. If you would like to learn more about our testing solution, please feel free to contact us.