CISPR15 CDN Method for Radiated Emission EMI 30MHz - 300MHz CDN Radiation Test System

Standards & Clauses:

CISPR15 / GB17743: Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
CISPR16-1-4: Radio disturbance and immunity measuring apparatus –Ancillary equipment –Radiated disturbances Reference

Samples and Restrictions:

Small test objects such as electrical lighting equipment

Application:

For small test objects such as electrical lighting equipment, the CISPR 15 standard states that the Coupling / Decoupling Network (CDN) method is an alternative to the radiation emission measurement method. Measuring the common-mode terminal voltage with a CDN shortens the test time and saves space.

Test Principle:

The principle of the CDN method is that for a small EUT, the radiation emitted by the common mode current on the lead is much larger than the outward radiation on the surface of the test object. Since CDNs provide a stable common mode impedance, the emission of radiation can be deduced by measuring the common mode voltage. CDN method can measure the frequency range of 30MHz - 300MHz.

Structure:

Main test equipment: receiver, CDN network, voltage probes, EMC test software
Test environment: shielded room or anechoic chamber

Use Environment​:

Power supply: 380V ± 10%, 50 / 60Hz
Ambient temperature: 5 °C ~ +40 °C, there should be no high concentration of dust, corrosive gas, flammable and explosive objects

Technical Parameters:

Sinuo is an innovation manufacturing company, specializing in the research and development and sales of laboratory construction and testing equipment for electrical appliances (covering the construction of energy efficiency and performance laboratories, as well as supplementary waterproof testing laboratories, materials flame-retardant laboratories, basic general testing equipment, etc.), Sinuo aims to provide clients with complete laboratory construction, system integration, R&D, rectification and after-sales service, and strive to be the leader of one-stop service for laboratory construction in the field of electrical appliance testing.

Sinuo  products are composed of all kinds of testing equipments as per standards of IEC/ BS/ EN/VDE/UL/ ISO..., such as household appliances testing equipment, energy efficient testing laboratories and comprehensive performance test system for household appliances, battery testing equipment,  automotive testing equipment, luminaries testing equipment,IP code testing equipment, environmental test chamber, flammability test chambers, EMC testing equipment and etc.

Sinuo employees include a highly trained staff of engineers for sales and service, that are committed to offer satisfactory products and prompt service to all home and abroad customers.

Sinuo cooperate with many research institutions and schools to enable our techincal capacities. Sinuo has two own factories, one is in Guangzhou, the other is in Dongguan, and authorized agents and representative offices in Korea, South Africa, Egypt,Pakistan and Philippines.

Sinuo combines all the R/D and production advantages, contributes to provide perfect, high-end and systematic electrical appliance testing laboratory solutions, products and services for corporate customers, universities and third-party laboratories. Our clients include Bureau Veritas, CSA, Intertek, TUV Rehiland, TUV SUD, SGS, etc.