Re: [PSES] Energy efficiency for power supplies...

2021-01-21 Thread Chris Wordley 
Hi Matthew

Although I’ve not checked that they all correlate, I believe that the 
efficiency calculations originate from the International Efficiency Marking 
Protocol for External Power Supplies: 
https://beta.regulations.gov/document/EERE-2008-BT-STD-0005-0218 
 

How they were originally decided upon though I don’t know. 

Best Regards

Chris Wordley
Senior Consultant
email: chris.word...@conformance.co.uk 
Direct Line: 01298 873817
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> On 21 Jan 2021, at 15:08, Matthew Wilson | GBE 
>  wrote:
> 
> EU 2019/1782 is the ecodesign requirements for external power supplies, i.e. 
> their efficiency, for Directive 2009/125/EC. Someone asked me how the formula 
> in 1(b) of Annex II of the EU 2019/1782 regulation was decided upon. This 
> table sets out the determination of 'average active efficiency'. I don't know 
> the answer to where all that came from. So I thought posting here might bring 
> some enlightenment?
> 
> The regulation in all its glory is here:
> https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2019.272.01.0095.01.ENG=OJ%3AL%3A2019%3A272%3ATOC
> 
> Thanks & kind regards,
> 
> 
> 
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> 
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Re: [PSES] Energy efficiency for power supplies...

2021-01-21 Thread John Woodgate 
The requirements were negotiated between EC-hired consultants and 
industry stakeholders. Or so I was assured.


==
Best wishes John Woodgate OOO-Own Opinions Only www.woodjohn.uk 
Rayleigh, Essex UK

"A nation once again" (with apologies to Eire)
People have to be told in stark terms that they can disobey the Covid 
rules at the risk of their own lives,
but disobeying at the risk of others' lives is no less than a crime 
against humanity.

On 2021-01-21 15:08, Matthew Wilson | GBE wrote:
EU 2019/1782 is the ecodesign requirements for external power 
supplies, i.e. their efficiency, for Directive 2009/125/EC. Someone 
asked me how the formula in 1(b) of Annex II of the EU 2019/1782 
regulation was decided upon. This table sets out the determination of 
'average active efficiency'. I don't know the answer to where all that 
came from. So I thought posting here might bring some enlightenment?


The regulation in all its glory is here:
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2019.272.01.0095.01.ENG=OJ%3AL%3A2019%3A272%3ATOC

Thanks & kind regards,


Disclaimer:​This email and any files transmitted with it are 
confidential and intended solely for the use of the individual or 
entity to whom they are addressed. If you have received this email in 
error please delete it from your system, do not use or disclose the 
information in any way and notify the sender immediately. The contents 
of this message may contain personal views which are not the views of 
the company, unless specifically stated.


​GB Electronics (UK) Ltd is a company registered in England and Wales 
under number 06210991.
​Registered office: Ascot House Mulberry Close, Woods Way, Goring By 
Sea, West Sussex, BN12 4QY.


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emc-pstc discussion list. To post a message to the list, send your 
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 can be used for graphics (in 
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All emc-pstc postings are archived and searchable on the web at:
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Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
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List rules: http://www.ieee-pses.org/listrules.html

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