1, EMC certification is electromagnetic compatibility (Electro Magnetic Compatibility) standards, which is defined as "equipment and systems in its electromagnetic environment can work properly and does not constitute any thing in the environment can not withstand the electromagnetic harassment of the ability," the definition contains two aspects The definition contains two meanings. First, the equipment should be able to work normally in a certain electromagnetic environment, that is, the equipment should have a certain degree of electromagnetic immunity (EMS); Second, the electromagnetic harassment generated by the equipment itself can not have a disproportionate impact on other electronic products, that is, electromagnetic harassment (EMI).
2, EMC certification by the European *** body government first introduced. European **** body government regulations, from January 1, 1996 onwards, all electrical and electronic products must be certified by the EMC, affixed with the "CE" logo in order to sell in the European **** body market; governments have taken measures to implement mandatory management of electrical and electronic products EMC performance. Internationally more influential EMC certification such as the EU Directive 2004/108/EC (EMC Directive), the U.S. Code of Federal Regulations CFR 47/FCC Rules, etc., have put forward clear requirements for electromagnetic compatibility certification.