EMC testing projects for LED display products

Serial number

Testing items

technical requirement

one

Radiation emission

According to GB 9254-2008, Class A;

two

Conducted Emissions

According to GB 9254-2008, Class A;

three

electrostatic discharge 

According to GB/T 17618-2015, at least 4 points should be selected for electrostatic discharge, with 100 positive and 100 negative electrodes, 4kV contact discharge, and 8kV air discharge;

four

Electric fast transient pulse group

According to GB/T 17626.4-2008

Signal terminal: 0.5kV

DC power terminal: 0.5kV

AC power terminal: 1kV

five

Conducted immunity test

According to GB/T 17626.6-2008

0.15MHz-80MHz,80%AM（1kHz），3V

six

Radiation immunity test

According to IEC61000-4-3:2006

80MHz-1GHz,80%AM（1kHz），3V/m

seven

Power frequency magnetic field

According to GB/T 17626.8-2006, 50Hz, 1A/m;

eight

surge

According to GB/T 17626.5-2008

Signal terminal: 10/700us, 1kV

DC power terminal: 1.2/50us, 0.5kV

AC power terminal: 1.2/50us,

1kV line, 2kV line to ground;

nine

Voltage dips and short interruptions

According to GB/T 17626.11-2008.