Meaning
Multimedia equipment imported into South Korea must meet specific requirements for electromagnetic immunity. The kn 35 standard defines how devices should behave when exposed to external electrical noise such as electrostatic discharge or radio frequency fields. Compliance is mandatory for obtaining the KC mark required for legal sale in the country.
Immunity Limit
Devices are tested to ensure they do not malfunction or lose data during a disturbance. Under kn 35, the equipment is subjected to bursts of high voltage and simulated lightning strikes on the power lines. The performance of the device is graded based on whether it continues to operate normally or requires a manual reset.
Successful testing proves that the electronic components can survive the surges common in modern electrical grids.
Test Configuration
Cables must be arranged in a specific way to replicate a typical home or office environment. The laboratory setup for kn 35 includes a reference ground plane and specific decoupling networks for the power and data ports. Accurate setup is necessary to ensure the results are repeatable across different test houses.
Market Certification
Manufacturers must submit a technical file to the national authorities to prove their product satisfies the regulation. Passing the kn 35 tests is a prerequisite for launching a new smartphone or internet gateway in the Korean market. This certification ensures a high level of reliability for consumers using the hardware.
