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Delve deeply and work diligently to achieve new heights
All colleagues unite and focus their efforts to write a new chapter of developmentCommon questions about power adapters: What is CE certification?
Simply put, CE certification is a mandatory requirement in the European Union. EU market regulations clearly stipulate that all products exported to the EU must obtain CE certification. CE certification serves as a passport for exporting products to the EU and is indispensable; without it, goods cannot clear customs or be sold within the EU market. So, does a power adapter need CE certification? The answer is yes!
Electromagnetic Compatibility (EMC) Directive for DC Electrical Equipment
EMC definition: The ability of a device or system to operate normally without being adversely affected by electromagnetic interference when functioning concurrently with other devices. This also encompasses EMI (Electromagnetic Interference):
During operation, a device or system may generate an undesirable and meaningless signal—either originating from external sources or arising internally.
Electromagnetic interference can be further categorized into two aspects: ① CE (Conducted Emission): conducted emissions; ② RE (Radiated Emission): radiated emissions. EMS (Electromagnetic Susceptibility): the ability of a device or system to operate without being adversely affected by the surrounding electromagnetic environment.
Electromagnetic immunity can be further categorized into two aspects: ① CE (Conducted Susceptibility): conducted emissions; ② RE (Radiated Susceptibility): radiated emissions.
LVD Directive for communication products
The full name of LVD is the Low Voltage Directive. It is a directive aimed at harmonizing the national laws of member states concerning electrical equipment operating within a specific voltage range (low voltage).
The objective of the LVD is to ensure the safety of low-voltage equipment during use. The LVD applies to all electrical equipment whose rated operating voltage ranges from 50 to 1,000 V AC or from 75 to 1,500 V DC. This definition specifies the scope of the Directive, not its limitations; for example, in a computer operating at 230 V AC, hazards arising from 12 V DC circuits are also subject to the LVD’s requirements. The Directive covers all safety-related provisions for such equipment, including protection against risks caused by mechanical factors. The design and construction of the equipment must ensure that, when used as intended under normal operating conditions or fault conditions, no hazards arise.
The main objectives of the LVD Directive are: 1) to harmonize technical requirements for products across Member States, thereby reducing differences and barriers to trade; 2) to ensure adequate protection of persons and domestic animals against risks arising from direct or indirect electrical contact; 3) to ensure that products do not generate temperatures, arcs, or radiation that could pose a hazard; and 4) to provide adequate protection for persons, domestic animals, and property against non‑electrical hazards that may arise from the use of such electrical equipment.