Re: [PSES] Demonstrating Compliance to the LVD w/o using 62368

2020-09-17 Thread Ted Eckert 
Hi Chuck,

The biggest change that I have seen is for touch temperatures. IEC 60950-1 
allows continuous contact with plastic at 75 C. Even glass is allows a 
continuous temperature of 70 C. Imagine using one of those new glass-bodied 
cell phones with it at that temperature. IEC 62368-1 reduces the continuous 
contact temperature limit to 48 C for all materials.

There were probably many older laptop computers with plastic cases that could 
exceed 48 C on the bottom surface during use. Those laptops would not comply 
with IEC 62368-1.

This isn't the only item to consider, but it's the one I'm most familiar with. 
There are additional issues related to fire enclosures where a product could 
pass IEC 60950-1 but fail IEC 62368-1 2nd Edition. However, these issues have 
largely be resolved with IEC 62368-1 3rd edition. TC 108 recognized that there 
were many constructions allowed under IEC 60950-1 that were shown to be 
acceptable through years of use, yet disallowed by IEC 62368-1 2nd edition. 
Many issues were resolved with the update.

Ted Eckert
Microsoft Corporation

The opinions experessed are my own and do not necessarily reflect those of my 
employer or TC 108.



From: Chuck August-McDowell 
Sent: Thursday, September 17, 2020 11:33 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [EXTERNAL] Re: [PSES] Demonstrating Compliance to the LVD w/o using 
62368

Hi Charles,

Only slightly off your topic "Has anyone experienced having an ITE product that 
complies with IEC60950 requirements, but does not comply with some portions IEC 
62368?"
I work on the audio side so our base standard is 60065. So to rephrase the 
question;
"Has anyone experienced having an audio product that complies with IEC 60065 
requirements, but does not comply with some portions IEC 62368? "
I was informed during factory audit the Hipot test voltage changed from 1500 
VAC to 1768 VAC ?

Oh, and outdoor use also changes from IEC 62368 2ed, calls for using 60950-22 
at current editions, which the 2005 edition did not require a dust test, but 
new (required) 2nd edition requires a dust test, where as 60065 required only 
IPX4 testing.

Let the testing begin!

Respectfully,

Chuck August-McDowell


From: Charles Jackson mailto:cjack...@nvidia.com>>
Sent: Wednesday, September 16, 2020 7:57 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Demonstrating Compliance to the LVD w/o using 62368


[EXTERNAL EMAIL]
Has anyone experienced having an ITE product that complies with IEC60950 
requirements, but does not comply with some portions IEC 62368?  In particular 
the use of a non-LPS psu.  Is there some sort of risk analysis that can be done 
to prove up conformance to the directive based on 60950 with or without 
supplemental test??

Thanks in advance
Chuck
-


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Re: [PSES] Demonstrating Compliance to the LVD w/o using 62368

2020-09-17 Thread Chuck August-McDowell 
Hi Charles,

Only slightly off your topic "Has anyone experienced having an ITE product that 
complies with IEC60950 requirements, but does not comply with some portions IEC 
62368?"
I work on the audio side so our base standard is 60065. So to rephrase the 
question;
"Has anyone experienced having an audio product that complies with IEC 60065 
requirements, but does not comply with some portions IEC 62368? "
I was informed during factory audit the Hipot test voltage changed from 1500 
VAC to 1768 VAC ?

Oh, and outdoor use also changes from IEC 62368 2ed, calls for using 60950-22 
at current editions, which the 2005 edition did not require a dust test, but 
new (required) 2nd edition requires a dust test, where as 60065 required only 
IPX4 testing.

Let the testing begin!

Respectfully,

Chuck August-McDowell

From: Charles Jackson 
Sent: Wednesday, September 16, 2020 7:57 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Demonstrating Compliance to the LVD w/o using 62368


[EXTERNAL EMAIL]
Has anyone experienced having an ITE product that complies with IEC60950 
requirements, but does not comply with some portions IEC 62368?  In particular 
the use of a non-LPS psu.  Is there some sort of risk analysis that can be done 
to prove up conformance to the directive based on 60950 with or without 
supplemental test??

Thanks in advance
Chuck
-


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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.

Website:  http://www.ieee-pses.org/
Instructions:  http://www.ieee-pses.org/list.html (including how to unsubscribe)
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