Electromagnetic Compatibility (EMC)
Electromagnetic compatibility regulations and mandatory standards apply to electrical and electronic equipment that emits or is affected by radiation in the electromagnetic spectrum.
Electromagnetic Compatibility (EMC) regulations and requirements ensure that electrical and electronic devices do not emit electromagnetic radiation that is harmful to other devices, and that they are not susceptible to interference from reasonably anticipated emissions from other devices.
These requirements typically apply to electrical and electronic equipment (EEE) designed for use with a voltage rating of between 50-1,000 V for alternating current, and between 75-1,500 V for direct current, including products like:
- Arc welding equipment
- Audio, video and similar electronic apparatus
- Electrical equipment for measurement, control and laboratory use
- Electroheat installations
- Household and similar electrical appliances
- Information technology (IT) equipment
- Lamps, LED modules and luminaires
- Plugs, socket-outlets and couplers for industrial purposes
- Power transformers, power supplies, reactors and similar products
- Radio transmitting equipment
- Surge protectors
- Switches for household and similar fixed-electrical installations
Per the Directive, EEE must be designed and manufactured to ensure that:
- The electromagnetic disturbance generated does not exceed the level above which radio and telecommunications equipment or other equipment cannot operate as intended
- It has a level of immunity to the electromagnetic disturbance to be expected in its intended use which allows it to operate without unacceptable degradation of its intended use.
In most countries, EEE which complies with harmonized standards and bears conformity marks, such as the CE Mark, UL Mark and CSA Mark, is presumed to conform with these safety objectives. These are typically standards from IEC and CISPR and their national transpositions.
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