About EMC
Ensuring electrical equipment is safe and does not interfere with the
normal operation of other equipment is the basis for Electromagnetic
Compatibility (EMC) regulation. The most common forms of EMC are
know as electromagnetic emissions and electromagnetic immunity.
Around the world, many countries have set regulations and laws that
govern the use of EMC. For example, in Europe the Electromagnetic
Compatibility Directive 2004/108/EC sets the requirements for the
control of immunity and emissions. In the United States, the FCC
governs the requirements for the control of immunity and emissions.
Electromagnetic Emissions
Electromagnetic Emissions relate to radio frequency waves that are
emitted from an electronic device during normal operation. These
electromagnetic waves can interfere with the normal operation of
other electronic equipment. Each product has specific frequency ranges
allowed to transmit these emissions within. The frequency ranges have
been determined by the type of product and by the regulatory authorities
of countries across the world, such as the FCC and European Norms.
Electromagnetic Immunity
Electromagnetic Immunity refers to a product's ability to withstand a
specified level of external electromagnetic interference. With the
proliferation of electronic devices, there are an increasing number of
standards covering a range of product immunity issues including
Electrostatic Discharge (ESD), Radiated Electromagnetic Field
Immunity, Electrical Transient/Burst Immunity, Surge Immunity, and
Immunity to Conducted Disturbances
EMC services are also offered for the following requirements:
North America:
United States Federal Communications Commission (FCC)
American National Standards Institute/Institute of Electrical and Electronic
Engineers (ANSI/IEEE)
Association for the Advancement of Medical Instrumentation (AAMI)
Food and Drug Administration (FDA)
Military Standards (MIL-STD)
National Security Agency (NSA)
National Institute of Standards and Technology (NIST) / National Voluntary
Laboratory Accreditation Program (NVLAP)
RTCA, Inc.
Scientific Apparatus Makers Association (SAMA)
Society of Automotive Engineers (SAE)
Bluetooth (SIG)
Europe:
European Norms (EN)
Association of German Electrical Engineers (VDE)
International Electrotechnical Commission (IEC)
Special Committee on Radio Interference (CISPR)
British Standards Institute (BSI)
German Standards Institute (DIN)
German Federal Approvals Office for Telecommunications (BZT)
Russia (GOST)
UK Ministry of Defense (Def-Stan 59-41)
Other Country specific Requirements
Asia/South Pacific:
Japanese Voluntary Control Council for Interference (VCCI)
Korean Ministry of Information and Communications (MIC)
Australian Telecommunications Standards (AUSTEL)
Taiwan: Chinese Taipei Bureau of Standards, Metrology and
Inspection (BSMI) - formerly BCIQ (Bureau of Commodity Inspection
and Quarantine)
Taiwan: Director General of Telecommunications (DGT)
China: Compulsory Product Certification (CCC Mark)
International EMC Mark
The International EMC Mark program incorporates the EMC
requirements of Europe, US, Japan, and Australia, providing an
identifiable mark to show your product complies with the diverse
requirements of the global marketplace. As electromagnetic compatibility
becomes increasingly scrutinized, the International EMC Mark provides
significant differentiation, simplicity and more speedy time-to-market
through combined testing, and customer confidence assurance by
proudly displaying the International EMC Mark.
