Re: Primary Power Range on a Product Label ...

2002-01-05 Thread Tania Grant

Doug,

For -48 Vdc equipment, the 3rd edition of CSA/UL 60950 gives a "should" in
Annex NAB.2 unless "otherwise specified by the manufacturer..."

It is worth a look.

taniagr...@msn.com

- Original Message -
From: "Doug McKean" 
To: "EMC-PSTC Discussion Group" 
Sent: Friday, January 04, 2002 4:17 PM
Subject: Primary Power Range on a Product Label ...


>
> I've never had an NRTL actually tell me what the specific
> domestic voltage *should* be.  Either one is okay. I'm fairly
> certain you could get by with 100-115 as well.
>
> You probably know already, but keep in mind the primary
> voltage range placed on the label of a product directly sets
> the upper (+6%) and lower (-10%) limits of HI/LO line
> testing at an NRTL.
>
> 100-120V  yields  90 and 132
> 100-127V  yields  90 and 135
>
> A difference of 3 volts on the upper side might not matter.
> Then again, it might.
>
> - Doug McKean
>
>
>
> ---
> This message is from the IEEE EMC Society Product Safety
> Technical Committee emc-pstc discussion list.
>
> Visit our web site at:  http://www.ewh.ieee.org/soc/emcs/pstc/
>
> To cancel your subscription, send mail to:
>  majord...@ieee.org
> with the single line:
>  unsubscribe emc-pstc
>
> For help, send mail to the list administrators:
>  Michael Garretson:pstc_ad...@garretson.org
>  Dave Healddavehe...@mediaone.net
>
> For policy questions, send mail to:
>  Richard Nute:   ri...@ieee.org
>  Jim Bacher: j.bac...@ieee.org
>
> All emc-pstc postings are archived and searchable on the web at:
> No longer online until our new server is brought online and the old
messages are imported into the new server.
>

---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

Visit our web site at:  http://www.ewh.ieee.org/soc/emcs/pstc/

To cancel your subscription, send mail to:
 majord...@ieee.org
with the single line:
 unsubscribe emc-pstc

For help, send mail to the list administrators:
 Michael Garretson:pstc_ad...@garretson.org
 Dave Healddavehe...@mediaone.net

For policy questions, send mail to:
 Richard Nute:   ri...@ieee.org
 Jim Bacher: j.bac...@ieee.org

All emc-pstc postings are archived and searchable on the web at:
No longer online until our new server is brought online and the old 
messages are imported into the new server.


Primary Power Range on a Product Label ...

2002-01-05 Thread Doug McKean

I've never had an NRTL actually tell me what the specific 
domestic voltage *should* be.  Either one is okay. I'm fairly 
certain you could get by with 100-115 as well. 

You probably know already, but keep in mind the primary 
voltage range placed on the label of a product directly sets 
the upper (+6%) and lower (-10%) limits of HI/LO line 
testing at an NRTL. 

100-120V  yields  90 and 132
100-127V  yields  90 and 135

A difference of 3 volts on the upper side might not matter.  
Then again, it might. 

- Doug McKean 



---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

Visit our web site at:  http://www.ewh.ieee.org/soc/emcs/pstc/

To cancel your subscription, send mail to:
 majord...@ieee.org
with the single line:
 unsubscribe emc-pstc

For help, send mail to the list administrators:
 Michael Garretson:pstc_ad...@garretson.org
 Dave Healddavehe...@mediaone.net

For policy questions, send mail to:
 Richard Nute:   ri...@ieee.org
 Jim Bacher: j.bac...@ieee.org

All emc-pstc postings are archived and searchable on the web at:
No longer online until our new server is brought online and the old 
messages are imported into the new server.