From the International Electrotechnical Commission standard IEC’s definition of electromagnetic compatibility, we can summarize the core content of the CE certification EMC electromagnetic compatibility directive as: CE certification EMC electromagnetic compatibility directive requires all electrical and electronic products and equipment equipped with electrical and electronic components. The electromagnetic wave emission must not exceed the prescribed limit, so as not to interfere with the normal operation of other equipment; at the same time, it must also have a certain anti-interference ability so that the product can operate normally under normal conditions (that is, it can resist the emission from other equipment). The electromagnetic interference is lower than the limit allowed by the industrial standard.) This directive applies to equipment that is prone to electromagnetic interference or whose performance is susceptible to electromagnetic interference.
CE certification EMC electromagnetic compatibility directive product range:
1. Household appliances and household electronic equipment;
2. Household radio and television receivers;
3. Industrial manufacturing equipment;
4. Industrial manufacturing equipment;
5. Mobile radio equipment;
6. Mobile radio communication and commercial wireless telephone equipment;
7. Medical and scientific equipment;
8. Information technology equipment;
9. Telecommunications network and equipment;
10. Lighting equipment and fluorescent lamps;
11. Aviation and marine radio equipment;
12. Audio-visual teaching equipment.
Products not covered by the CE certification EMC Directive:
1. Components that do not have direct functions:
a) Electrical and electronic components in electrical and electronic circuits:
-Resistance, capacitance, coil;
-Electronic tubes, transistors, thyristors, triacs, etc.
-integrated circuit.
b) Cables and cable accessories.
c) Relay.
d) Plugs, sockets, wiring boards, etc.
e) Light-emitting diodes, liquid crystal displays, etc.
f) Simple mechanical thermostat.
2. Similar components with direct functions:
a) Computer system plug-in program card, microprocessor card, central processing unit card/motherboard, email card, communication card, etc.;
b) Programmable logic manager;
c) Elevator controller;
d) Motors (except induction motors);
e) Computer disk drive;
f) Power supply for automatic control equipment (PSU);
g) Electronic thermostat.
CE certification EMC electromagnetic compatibility test items:
1. EMI test:
Continuous disturbance voltage, continuous disturbance power, intermittent disturbance voltage, radiated electromagnetic disturbance, harmonic current, voltage fluctuation and flicker.
2. EMS test:
Electrostatic discharge (ESD) immunity, electrical fast transient pulse group immunity, surge (impact) immunity, injection current (conducted disturbance induced by radio frequency field) immunity, interruption and voltage during voltage transient Change immunity
Materials required for CE certification EMC electromagnetic compatibility testing:
1. Product manual;
2. Product structure description;
3. Product electrical schematic diagram and printed circuit board diagram;
4. List of key parts of product electromagnetic compatibility;
5. Other relevant information required when needed;
6. A copy of the certification certificate of the key safety element of the product;
7. Explanation of the differences between products of various models in the same application unit.
Process of handling CE certification EMC electromagnetic compatibility instructions:
1. Project application-submit a CE certification application to the supervision of the testing agency.
2. Document preparation-according to CE certification requirements, the company prepares relevant certification documents.
3. Product testing-the company sends samples to be tested to the laboratory for testing.
4. Compilation report-The certified engineer compiles the report based on the qualified test data.
5. Submit for review-the engineer will review the complete report.
6. Certificate issuance-CE certification will be issued after the report is verified.