6. Conclusion
The growing number of domestic appliances incorporating AC/DC converters is contributing to increased harmonic pollution of LV networks, even if they comply with current standards. If their number reaches a significant value, and if they operate simultaneously for long periods, their effect can be quantified by the increase in the rate of harmonic distortion of the network voltage.
These conditions are typically met by televisions, which operate mainly in the evening and are clearly the source of pollution peaks. Now there are ADSL modems and computers, whose number and operating times continue to grow. The result is an ever-increasing distortion of network voltage.
The implementation of standard NF EN 61000-3-2 for all these devices, and not just those over 75 W, should limit the increase in this distortion.
In...
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Conclusion
Bibliography
Standards and norms
- ISO Acoustique : méthode de calcul du niveau d'isotonie - ISO 532 - 1975
- Limits for harmonic current emissions (current drawn by devices) per phase, p. 15 § 7, UTE - NF EN 61000-3-2 - 05-01
- Limites et méthodes de mesure des perturbations radioélectriques produites par les appareils électriques d'éclairage et les appareils analogues, p. 10, § 5.3.4, UTE - NF EN 55015 - 05-01
- Electromagnetic compatibility...
Regulations
Directive 2005/32/EC (6 july 2005) of the European Parlement and of the council – Establishing a framework for the setting of ecodesign requirements for energy-using products and amending Council Directive 92/42/EEC and Directives 96/57/EC and 2000/55/EC of the European Parlement and the Council.
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