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What is EMC?

There are two phrases that often sound about electricity and electronics:

  • EMC: ElectroMagnetic Compatibility
  • EMI: ElectroMagnetic Interference

In the past, when a nearby cell phone rang while watching television, vibrations and scratches were heard on the television screen. This is due to invisible electromagnetic waves. Electromagnetic wave is a vibration that can travel in the air and space. Since these waves are composed of electric field and magnetic field movements, they are called electromagnetic. Electromagnetic waves are generated at right angles to each other by electric and magnetic fields of the same frequency. Electromagnetic waves, radio waves, microwaves, infrared rays, visible light, ultraviolet rays, depending on wavelengths, X-rays and gamma rays.

All electrical and electronic devices emit some kind of electromagnetic wave. These waves naturally affect the operation of other electrical and electronic devices around them. This effect is handled in two ways. The first relates to how much electromagnetic waves these devices emit during their operation. The second concerns the extent to which these devices are affected by other electrical and electronic devices in their environment during operation. These two issues form the basis of electromagnetic compatibility (EMC, ElectroMagnetic Compatibility).

In order to regulate the electromagnetic compatibility of electrical and electronic devices and equipment and to ensure that these devices and equipment are provided to consumers in a manner that complies with an adequate level of electromagnetic compatibility, the Regulation on Electromagnetic Compatibility (2016 / 2014 / EU) was issued by the Ministry of Science, Industry and Technology in 30.

The directive on electromagnetic compatibility 2014 / 2014 / EU published in the European Union countries in 30 was based on the preparation of the said regulation.

In today's market conditions, electromagnetic compatibility (EMC) has become a crucial criterion for the marketing of an electrical or electronic product. If such devices and equipment do not meet the electromagnetic compatibility criteria of any country, there is no marketability. Due to the development of technology, electromagnetic compatibility in the design of electrical or electronic devices, systems and equipment has outpaced the traditional design criteria that have been considered so far.


Since 1996, EMC standards in European Union countries are among the compulsory criteria to be met. In the European Union countries, devices that emit electromagnetic waves that may affect the operation of other devices by electromagnetic interference or those affected by the waves emitted by other devices are not introduced.