PD CLC/TR 50669:2017

What is PD CLC/TR 50669 - Investigation Results on Electromagnetic Interference about?  

PD CLC/TR 50669 discusses investigation Results on Electromagnetic Interference in the Frequency Range below 150 kHz. Electromagnetic Interference may degrade the performance of the circuit or even stop it from functioning. In the case of a data path, these effects can range from an increase in error rate to a total loss of the data. Following to [1, 2, 3] having proceeded with the collection of related information, with PD CLC/TR 50669, further extended information is provided including: 

• The given EMC problems in the frequency range 2 kHz - 150 kHz, concerning EMC between electrical equipment in general as well as EMC between non-mains communicating equipment/systems (NCE) and mains communicating systems (MCS) as a particular issue. 
• The given situation of related emissions in the grid, with other measurement results EMI cases and related investigation results. 
• New findings on parameters to be considered when dealing with EMC in this frequency range, in particular, related to: The impact of the network impedance and its variation overtime on the more or less disturbing effect of emissions in this frequency range, The behaviour of emissions in this frequency range over time and the increasing need for also performing time-domain measurements for comprehensively evaluating emissions and their disturbance potential 
• The actual standardisation situation 
• Needs for the future, concerning 
• Measurement of related emissions 
• Investigation on the impedance of the grid / in installations over time 
• Closing gaps in standardisation 
• Installation guidelines and possibly regulatory measures related to the ageing effect. 

Who is PD CLC/TR 50669 - Investigation Results on Electromagnetic Interference for? 

PD CLC/TR 50669 on Investigation Results on Electromagnetic Interference is useful for: 

• Telecommunication equipment manufacturers 
• Telecommunication component manufacturers 
• Design engineers 
• Quality control personnel 

Why should you use PD CLC/TR 50669 - Investigation Results on Electromagnetic Interference?  

Electromagnetic Interference when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction. PD CLC/TR 50669 provides a comprehensive set of additional measurement results on electromagnetic interference in this frequency range. It documents the existing disturbances on the electricity supply network, including customer premises. PD CLC/TR 50669 covers both products acting as emission sources and those which are susceptible to such, including cumulative effects and the effect of ageing of components that are intended to suppress emissions. PD CLC/TR 50669 also provides information on interference mechanisms and on the current situation with regard to standardisation. The TR is based on investigation results (measurement results, reported EMI cases) from twelve countries involving network operators, manufacturers, universities, accredited test houses and consultants. 

PD CLC/TR 50669 shows the utilisation of the frequency range 2 kHz – 150 kHz by electrical equipment shows several effects, which, compared with other frequency ranges needs to be considered as a somehow specific situation that resulting in the need for consideration of these effects when considering related EMC issues. And also extended information about this specific situation and measurement and investigation results on related emissions and EMI cases are provided. Using PD CLC/TR 50669 you can investigate results on electromagnetic interference in the frequency range below 150 kHz.