AV products
1. Scope
This rule applies to direct or indirectly connected to the 36V above (RMS, greater than < / span> 36V ) power supply of the following audio and video equipment products, including: Total output power 500W (RMS) less single-speaker and multi-speaker active speaker, audio amplifiers, various broadcast band radio, various forms of audio and video recording carrier / Play / handling equipment (including cassette tape recorder / player, disc phonograph, CD / MD gramophones, LD , < / span> VCD , super VCD , DVD player, MP3 , MP4 catalog / player, language repeater, audio and video processing equipment, etc.), the combination of audio and video systems for audio and video equipment for the power adapter (with charger), video tape cassette / player, a variety of imaging modalities color / black and white or monochrome television receivers ( including LCD, plasma, before / projection, etc. ) , monitors, digital TV set-top box, antenna amplifiers, keyboards and other machine equipment; and imaging (shown) tubes ( greater than 16cm) tuner. ?
2. Test Project
to LCD TVs do CE certification as an example , test project is divided into two blocks disturbance and immunity. Based on European standards: EN55013 , EN55020 , IEC61000-3-2 , IEC61000-3 -3 . Here specifically about the two chunks of concrete test project.
1. interference ;
standards based on EN55013 , IEC61000-3-2 , IEC61000-3-3 requirements, interfere specifically divided into the following test items:
( 1 ) power supply terminal disturbance voltage;
( 2 ) antenna terminal disturbance voltage;
( 3 ) radiated disturbance field strength;
( 4 ) harmonic current and voltage flicker.
2. interference
standards based on EN55020 requirements of specific anti divided into the following test items:
( 5 ) internal immunity;
( 6 ) Immunity RF induced current;
( 7 ) induced voltage on the RF immunity;
( 8 ) Radiated Immunity;
( 9 ) shielding effect;
( 10 ) electrostatic discharge;
( 11 ) electrical fast burst;
( 12 ) for keying signals radiated immunity ( 900MHz )
addition to the need for high-voltage products, do EMC aspects of testing needs to be done safe ( LVD ) tests, audio and video products CE Certification standard is based on the detection of EN60065 .
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