IEC 62493

The EN/IEC 62493 standard describes how Conducted Emission measurements are performed, by using the 'Van der Hoofden' test method. The title of this standard is also: "Assessment of Lighting Equipment related to Human Exposure to Electromagnetic Fields"

Relevant Lighting Products:

• All indoor and/or outdoor lighting equipment for illumination purposes with AC or battery power supply, which include all industrial, residential, public and street lighting.
• Independent auxiliaries exclusively for the use with lighting equipment.

Exempted Lighting Products:

• Lighting equipment for aircraft and airfields.
• Lighting equipment for road vehicles (except lighting used for the illumination of passenger compartments in public transport).
• Lighting equipment for agriculture.
• Lighting equipment for boats/vessels.
• Photocopiers, slide projectors.

The 'Van der Hoofden' measurement should be performed using a specifically described test-head. This can for example be the Schwarzbeck VDHH 9502 or the AFJ VDH 30. Then the emission measurement should be performed using the following parameters:

Frequency Range	6 dB RBW bandwidth	Measurement time	Frequency step	Detector
20 kHz - 150 kHz	200 Hz	100 ms	220 Hz	Peak
150 kHz - 10 MHz	9 kHz	20 ms	10 kHz	Peak

The result of the emission measurement results should be used in a calculation to determine the Factor 'F'. The final value of this Factor 'F' should not exceed 0.85 for the measurements to pass.

Links

• IEC 62493
• http://www.schwarzbeck.com/index.php/en/van-der-hoofden-test-head
• http://afj-instruments.com/prodotti.php?prod=462

Alternating Current

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