Re: [PSES] light flicker

2018-03-02 Thread John Woodgate 
Although I expect TC62 will do its own thing re IEC 60601, IEC SC77AWG2 
is also studying new flicker phenomena.


John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK

On 2018-03-02 19:31, Brian O'Connell wrote:

Good People,

Thanks to the humans that replied on and off-line. Much appreciated.

Have also noted that there has been some interesting discussions on the subject 
per the proposed Peoples Republic of California Energy Commission regulations 
for LED luminaires; for example, note this comment to the CEC:

http://docketpublic.energy.ca.gov/PublicDocuments/17-BSTD-02/TN222823_20180302T105129_Kelly_Seeger_Comments_Philips_Lighting_additional_comments_on_N.pdf

Brian


-Original Message-
From: Brian O'Connell
Sent: Wednesday, February 21, 2018 2:14 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: light flicker

Does any 60601 collateral standard, address limits for light-source flicker; or 
have any other requirements for the light-flicker frequencies emitted by a 
luminaire? Have noted IEC60601-2-41 but do not have it; does it provide 
light-flicker frequency limits?

Am already aware of the TLA stuff in NEMA77 and IEEE1789, and the IEC61000-4-15 
'flickermeter' stuff. These standards are contradictory, and the IEEE standard 
fails to provide any reference to biophysical data that would provide a 
rationale. And 60601-1 clause 10 does not say much other than the generic 
response that references the RMF.

Thanks,
Brian

-

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Re: [PSES] light flicker

2018-03-02 Thread Jim Hulbert 
Did you get replies from other than humans?

Jim Hulbert

-Original Message-
From: Brian O'Connell [mailto:oconne...@tamuracorp.com] 
Sent: Friday, March 02, 2018 2:31 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] light flicker

Good People,

Thanks to the humans that replied on and off-line. Much appreciated.

Have also noted that there has been some interesting discussions on the subject 
per the proposed Peoples Republic of California Energy Commission regulations 
for LED luminaires; for example, note this comment to the CEC:

http://docketpublic.energy.ca.gov/PublicDocuments/17-BSTD-02/TN222823_20180302T105129_Kelly_Seeger_Comments_Philips_Lighting_additional_comments_on_N.pdf

Brian


-Original Message-
From: Brian O'Connell
Sent: Wednesday, February 21, 2018 2:14 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: light flicker

Does any 60601 collateral standard, address limits for light-source flicker; or 
have any other requirements for the light-flicker frequencies emitted by a 
luminaire? Have noted IEC60601-2-41 but do not have it; does it provide 
light-flicker frequency limits?

Am already aware of the TLA stuff in NEMA77 and IEEE1789, and the IEC61000-4-15 
'flickermeter' stuff. These standards are contradictory, and the IEEE standard 
fails to provide any reference to biophysical data that would provide a 
rationale. And 60601-1 clause 10 does not say much other than the generic 
response that references the RMF.

Thanks,
Brian

-

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discussion list. To post a message to the list, send your e-mail to 


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http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

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Re: [PSES] light flicker

2018-03-02 Thread John Woodgate 

A Swede, perhaps.

John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK

On 2018-03-02 19:50, Jim Hulbert wrote:

Did you get replies from other than humans?

Jim Hulbert

-Original Message-
From: Brian O'Connell [mailto:oconne...@tamuracorp.com]
Sent: Friday, March 02, 2018 2:31 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] light flicker

Good People,

Thanks to the humans that replied on and off-line. Much appreciated.

Have also noted that there has been some interesting discussions on the subject 
per the proposed Peoples Republic of California Energy Commission regulations 
for LED luminaires; for example, note this comment to the CEC:

http://docketpublic.energy.ca.gov/PublicDocuments/17-BSTD-02/TN222823_20180302T105129_Kelly_Seeger_Comments_Philips_Lighting_additional_comments_on_N.pdf

Brian


-Original Message-
From: Brian O'Connell
Sent: Wednesday, February 21, 2018 2:14 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: light flicker

Does any 60601 collateral standard, address limits for light-source flicker; or 
have any other requirements for the light-flicker frequencies emitted by a 
luminaire? Have noted IEC60601-2-41 but do not have it; does it provide 
light-flicker frequency limits?

Am already aware of the TLA stuff in NEMA77 and IEEE1789, and the IEC61000-4-15 
'flickermeter' stuff. These standards are contradictory, and the IEEE standard 
fails to provide any reference to biophysical data that would provide a 
rationale. And 60601-1 clause 10 does not say much other than the generic 
response that references the RMF.

Thanks,
Brian

-

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list. To post a message to the list, send your e-mail to 

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 
formats), large files, etc.

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unsubscribe) List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas 
Mike Cantwell 

For policy questions, send mail to:
Jim Bacher:  
David Heald: 

-

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list. To post a message to the list, send your e-mail to 

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 
formats), large files, etc.

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Scott Douglas 
Mike Cantwell 

For policy questions, send mail to:
Jim Bacher:  
David Heald: 



-

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Re: [PSES] light flicker

2018-03-02 Thread Ted Eckert 
https://en.wikipedia.org/wiki/On_the_Internet,_nobody_knows_you%27re_a_dog#/media/File:Internet_dog.jpg


Ted Eckert
Microsoft Corporation

The opinions expressed are my own and do not necessarily reflect those of my 
employer or the American Kennel Club.

-Original Message-
From: Jim Hulbert  
Sent: Friday, March 2, 2018 11:50 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] light flicker

Did you get replies from other than humans?

Jim Hulbert

-Original Message-
From: Brian O'Connell [mailto:oconne...@tamuracorp.com]
Sent: Friday, March 02, 2018 2:31 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] light flicker

Good People,

Thanks to the humans that replied on and off-line. Much appreciated.

Have also noted that there has been some interesting discussions on the subject 
per the proposed Peoples Republic of California Energy Commission regulations 
for LED luminaires; for example, note this comment to the CEC:

https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdocketpublic.energy.ca.gov%2FPublicDocuments%2F17-BSTD-02%2FTN222823_20180302T105129_Kelly_Seeger_Comments_Philips_Lighting_additional_comments_on_N.pdf=04%7C01%7Cted.eckert%40microsoft.com%7C6f29987962df4fbac58908d5807b64b1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C1%7C636556189825131274%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwifQ%3D%3D%7C-1=ps5%2F%2Buvs0OKiU%2FS8uZJ%2BmJM%2BBsf5Q6eupMaDyTvl%2FBs%3D=0

Brian


-Original Message-
From: Brian O'Connell
Sent: Wednesday, February 21, 2018 2:14 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: light flicker

Does any 60601 collateral standard, address limits for light-source flicker; or 
have any other requirements for the light-flicker frequencies emitted by a 
luminaire? Have noted IEC60601-2-41 but do not have it; does it provide 
light-flicker frequency limits?

Am already aware of the TLA stuff in NEMA77 and IEEE1789, and the IEC61000-4-15 
'flickermeter' stuff. These standards are contradictory, and the IEEE standard 
fails to provide any reference to biophysical data that would provide a 
rationale. And 60601-1 clause 10 does not say much other than the generic 
response that references the RMF.

Thanks,
Brian

-

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Attachments are not permitted but the IEEE PSES Online Communities site at 
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This message is from the IEEE Product Safety Engineering Society emc-pstc

Re: [PSES] light flicker

2018-03-02 Thread Brian O'Connell 
Good People,

Thanks to the humans that replied on and off-line. Much appreciated.

Have also noted that there has been some interesting discussions on the subject 
per the proposed Peoples Republic of California Energy Commission regulations 
for LED luminaires; for example, note this comment to the CEC:

http://docketpublic.energy.ca.gov/PublicDocuments/17-BSTD-02/TN222823_20180302T105129_Kelly_Seeger_Comments_Philips_Lighting_additional_comments_on_N.pdf

Brian


-Original Message-
From: Brian O'Connell 
Sent: Wednesday, February 21, 2018 2:14 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: light flicker

Does any 60601 collateral standard, address limits for light-source flicker; or 
have any other requirements for the light-flicker frequencies emitted by a 
luminaire? Have noted IEC60601-2-41 but do not have it; does it provide 
light-flicker frequency limits?

Am already aware of the TLA stuff in NEMA77 and IEEE1789, and the IEC61000-4-15 
'flickermeter' stuff. These standards are contradictory, and the IEEE standard 
fails to provide any reference to biophysical data that would provide a 
rationale. And 60601-1 clause 10 does not say much other than the generic 
response that references the RMF.

Thanks,
Brian

-

This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 


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 
formats), large files, etc.

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