Electromagnetic compatibility (EMC) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment, by limiting the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as electromagnetic interference (EMI) or even physical damage to operational equipment. The goal of EMC is the correct operation of different equipment in a common electromagnetic environment. It is also the name given to the associated branch of electrical engineering.
The UL enterprise is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions.
The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. Despite the use of the term "national," it is not a federal law. It is typically adopted by states and municipalities in an effort to standardize their enforcement of safe electrical practices. In some cases, the NEC is amended, altered and may even be rejected in lieu of regional regulations as voted on by local governing bodies.
Appliance classes specify measures to prevent dangerous contact voltages on unenergized parts, such as the metallic casing, of an electronic device. In the electrical appliance manufacturing industry, the following appliance classes are defined in IEC 61140 and used to differentiate between the protective-earth connection requirements of devices.
The presence of the logo on commercial products indicates that the manufacturer or importer affirms the goods' conformity with European health, safety, and environmental protection standards. It is not a quality indicator or a certification mark. The CE marking is required for goods sold in the European Economic Area (EEA); goods sold elsewhere may also carry the mark.
ETL SEMKO is a division of Intertek Group plc which is based in London. It specializes in electrical product safety testing, EMC testing, and benchmark performance testing. ETL SEMKO operates more than 30 offices and laboratories on six continents. SEMKO was, until 1990, the body responsible for testing and certifying electric appliances in Sweden. The "S" mark was mandatory for products sold in Sweden until the common European CE mark was adopted prior to Sweden's accession to the European Union.
In electrical and safety engineering, hazardous locations are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible or flammable. Electrical equipment installed in such locations can provide an ignition source, due to electrical arcing, or high temperatures. Standards and regulations exist to identify such locations, classify the hazards, and design equipment for safe use in such locations.
Product certification or product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications.
A power entry module (PEM) is an electromechanical component used in electrical appliances, integrating the appliance inlet with other components such as:
In electrical safety testing, portable appliance testing is a process by which electrical appliances are routinely checked for safety, commonly used in the United Kingdom, Ireland, New Zealand and Australia. The formal term for the process is "in-service inspection & testing of electrical equipment". Testing involves a visual inspection of the equipment and verification that power cables are in good condition. Additionally, other tests may be done when required, such as a verification of earthing (grounding) continuity, a test of the soundness of insulation between the current-carrying parts, and a check for any exposed metal that could be touched. The formal limits for a pass/fail of these electrical tests vary somewhat depending on the category of equipment being tested.
A certification listing is a document used to guide installations of certified products, against which a field installation is compared to make sure that it complies with a regulation. Typically, products or items are required to be installed or used in accordance with a subject-related certification listing if those products or items are subject to product certification and must be used in a specific manner in order to be safe for use. Certification listings are issued by organisations that are usually nationally accredited for doing both testing and product certification work, in accordance with nationally accredited standards.
In electrical engineering, electrical safety testing is essential to make sure electrical products and installations are safe. To meet this goal, governments and various technical bodies have developed electrical safety standards. All countries have their own electrical safety standards that must be complied with. To meet to these standards, electrical products and installations must pass electrical safety tests.
British Approvals Service for Cables is an independent accredited certification body headquartered in Milton Keynes, United Kingdom. Here, the organization's dedicated testing laboratory also operates which is believed to be the largest of its type in Europe. BASEC was established in 1971 and principally provides product certification services for all types of cable and wire, ancillary products and management systems within the cable industry. The organization maintains operations throughout the world including Africa, Middle East, America, Asia and Europe.
ENEC is the high quality European mark for electrical products that demonstrates compliance with European safety standards.
The IECEE is the IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and Components being a body of the International Electrotechnical Commission (IEC). The IEC uses the name IECEE for the IEC System for Conformity Testing and Certification of Electrotechnical Equipment and Components that is better known as the CB System
ECA is the main trade association for companies involved in electrotechnical and other technical engineering projects in England, Northern Ireland and Wales. In 2022 it had some 2600 registered members - companies who collectively generated annual revenues of over £6billion. ECA also has associate categories open to industry manufacturers, distributors, educators, clients and specifiers who wish to engage and collaborate with members.
Electrical Safety First is a registered UK charity working with all sectors of the electrical industry as well as local and central government to reduce deaths and injuries caused by electrical accidents.
CEBEC is a private Belgian rating label for the quality assurance of electrical appliances. Use of this label indicates that a piece of equipment conforms to European safety standards. The label is issued by SGS-CEBEC, now part of the SGS group. CEBEC has its own electrical testing laboratory located in Brussels. It is an approved laboratory for the purpose of certifications granted by SGS.
Plugs and sockets for electrical appliances not hardwired to mains electricity originated in the United Kingdom in the 1870s and were initially two-pin designs. These were usually sold as a mating pair, but gradually de facto and then official standards arose to enable the interchange of compatible devices. British standards have proliferated throughout large parts of the former British Empire.
The Voluntary CQC Mark Certification is a voluntary product certification for Chinese products or products that are imported to China. The Voluntary CQC Mark Certification can be applied for products which are not in the China Compulsory Certification product catalogue and thus cannot receive a China Compulsory Certificate. The CQC Mark guarantees the conformity of the product with the Chinese standards regarding safety, quality, environmental and energy efficiencies. Products marked with the CQC Mark are less likely to be detained at Chinese customs. In addition, the CQC Mark raises the competitiveness of a product in the Chinese market. The whole certification process is similar to the Compulsory China Certificate (CCC) certification process.
