Re: [PSES] marking of rated voltages

[John Woodgate]

It looks like a dreadful mess. Concerning the shellfish question below,  
if 61293 is normatively referenced in any product safety standard, then 
it must be applied. This dot triad '...' is an old German way of 
signifying 'to'. What the commas are supposed to be for, I cannot imagine.


The revision was produced by IEC committee TC3. TC3 documents are 
studied by national committees that often have very little or no liaison 
with their own product committees. I wonder if TC3 consulted any product 
safety committees.



Best wishes John Woodgate OOO-Own Opinions Only www.woodjohn.uk 
Rayleigh, Essex UK MAY THE VIRUS NOT BE WITH YOU dum nisi ex silvis sumus

On 2020-05-22 17:56, Brian Kunde wrote:

what mussel does it have to force the world to follow it?


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Re: [PSES] marking of rated voltages

[Brian Kunde]

Did you get the replies you wanted?  Have you ever looked at the standard
EN IEC 61293:2020?  This new version just came out. This new version is
loaded with typos and to many I think they are going to find it more
confusing than what we are currently doing.

One major change this standard is trying to make is the fact that the
literary world is trying to do away with the dash "-" to mean a range
between two values, such as 200-240V.  The new way is something like this,
" 200 V, ..., 240 V ".  I find this very confusing. I know our Manual
writers always change dashes into the word " to ".

Oh, and they really really like spaces. Spaces between everything!!

But here are some examples this standard gives:

2 ~ 230 V
1/N/PE ~ 230 V 50 Hz
2/N ~ 110/220 V 60 Hz  (this would be for 2 phase or split phase in North
America)
3 ~ 400 V
3/N ~ 277/480 V 60 Hz(North America does use "PE" to show safety ground)
3/N/PE ~ 230/400 V 50 Hz


So if you have a product that has a universal input, it would be rated
something like this:

100 V, ..., 240 V 50/60 Hz(this looks strange to me)

So I have a question. Since the EN IEC 61293:2020 standard is trying to
standardize on the way we rate electronic devices, what mussel does it have
to force the world to follow it?  How we "rate" equipment seems to be more
of an Industry Standard (do what everyone else is doing) and not set in
stone by some IEC standard.  I really don't get it.

Thanks.
The Other Brian

On Fri, May 22, 2020 at 12:54 PM Brian Kunde  wrote:

> Did you get the replies you wanted?  Have you ever looked at the standard
> EN IEC 61293:2020?  This new version just came out. This new version is
> loaded with typos and to many I think they are going to find it more
> confusing than what we are currently doing.
>
> One major change this standard is trying to make is the fact that the
> literary world is trying to do away with the dash "-" to mean a range
> between two values, such as 200-240V.  The new way is something like this,
> " 200 V, ..., 240 V ".  I find this very confusing. I know our Manual
> writers always change dashes into the word " to ".
>
> Oh, and they really really like spaces. Spaces between everything!!
>
> But here are some examples this standard gives:
>
> 2 ~ 230 V
> 1/N/PE ~ 230 V 50 Hz
> 2/N ~ 110/220 V 60 Hz  (this would be for 2 phase or split phase in North
> America)
> 3 ~ 400 V
> 3/N ~ 277/480 V 60 Hz(North America does use "PE" to show safety
> ground)
> 3/N/PE ~ 230/400 V 50 Hz
>
>
> So if you have a product that has a universal input, it would be rated
> something like this:
>
> 100 V, ..., 240 V 50/60 Hz(this looks strange to me)
>
> So I have a question. Since the EN IEC 61293:2020 standard is trying to
> standardize on the way we rate electronic devices, what mussel does it have
> to force the world to follow it?  How we "rate" equipment seems to be more
> of an Industry Standard (do what everyone else is doing) and not set in
> stone by some IEC standard.  I really don't get it.
>
> Thanks.
> The Other Brian
>
>
> On Fri, May 8, 2020 at 7:24 AM Boštjan Glavič 
> wrote:
>
>> Dear colleagues,
>>
>> I am struggling with correct marking of rating on the product.
>>
>> How would you mark your product when connected to :
>>
>> 3 phase star system (with Neutral) and/or
>>
>> 3 phase delta system and/or
>>
>> 1 phase system
>>
>> Standard is IEC 62368-1 – table F.2
>>
>>
>>
>> Some examples that I have in mind:
>>
>> 400 Y/230 V 3~; 50/60Hz, 3A, (This is for star system but with this
>> marking not identified that Netral is required)
>>
>> 208 V 3~, 50/60Hz, 3A (This is for connection to Delta system)
>>
>> 208-230V, 50/60Hz, 6A (This is for 1 phase L to N or 2 phase L1 to L2
>> connection)
>>
>> What do you think?
>>
>>
>>
>> I remeber that in the past connection to STAR system was identified like
>> 400/230V, 50/60Hz, 3A, 3W + N + PE, however it looks that this was
>> changed.
>>
>> Thank you for your support.
>>
>> Best regards,
>>
>> Boštjan
>> -
>> 
>>
>> This message is from the IEEE Product Safety Engineering Society emc-pstc
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>> emc-p...@ieee.org
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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
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>> well-used formats), large files, etc.
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>> Website: http://www.ieee-pses.org/
>> Instructions: http://www.ieee-pses.org/list.html (including how to
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>>
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