Monthly Archives: March 2010

Does Canada Need Harmonics Emissions Limits?

The Canadian Standards Association has been pursuing adoption of IEC 61000-3-2: Electromagnetic compatibility (EMC) – Part 3-2 and 61000-3-12: Electromagnetic compatibility (EMC) – Part 3-12 that provide requirements on limiting device harmonic current emissions.  These documents, and IEEE 519, provide requirements for










Lighting industry position on light at night and biological factors forthcoming

The NEMA Lighting Systems Division is concerned over numerous recent efforts to raise awareness of light at night and potentially related effects on biological processes.  While many of these are well-intended, they often fall short of being credible, and could do more