John,
I agree with your comment in today's environment but the
implementation of the required 'green' technology will require almost every
household and commercial electrical product to run from a SMPS. (Well maybe
a dumb toaster won't require it, but it could be designed to run on 230V a
Peter,
You are absolutely correct in your description of the implementation
of the combo power/USB outlet. The USB port is built in (actually 2 of
them, and USB2 at that) but only one NEMA 15 outlet. And it is UL Listed (I
wouldn't use it, of course, if it wasn't :>)) It is designed wit
OTOH, I think the more general issue is all the other equipment (domestic
appliances, etc.) which is not capable of operating on both voltage ranges -
that could really be a safety issue in many cases.
John Allen
W. London, UK
-Original Message-
From: emc-p...@ieee.org [mailto:emc-
> From: Pete Perkins
> Sent: Monday, May 06, 2013 11:48
>
> snip <
>
> I already have a mixed line voltage
> and USB wallplate adaptor that is very handy.
What voltages are mixed in your cover plate or are you referring only to
line voltage and USB/SELV?
Since small device SMPS for USB charging a
OTOH, could be "very handy" in those countries which use US installation
practice, but don't care too much for the "niceties" and it is common to use
the NEMA 1-15P and 5-15P configurations for both 110-120 & 220-230V (I have
heard that some parts of the Phillipines can be like that, although I
ob
Peter et al,
The UL shown in Peter's email is split by a CR and there is a short
segment on the next line which is not highlighted as part of the URL.
I copied it entirely into my browser and went directly to the UL
notice with the embedded pix.
This scenario provides
Peter
Whilst the link to the UL press release works, the follow-on links to the
actual photos do not appear to.
John Allen
W.London, UK.
-Original Message-
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Peter Tarver
Sent: 06 May 2013 17:56
To: EMC-PSTC@LISTSERV.IEEE.ORG
John -
I was able to find it in UL's public notices at
http://www.ul.com/global/eng/pages/newsroom/publicnotices/detail/index.jsp
?cpath=/global/eng/pages/newsroom/publicnotices//detail/data/ul-warns-of-p
otentially-hazardous-receptacle-release-13pn-05_2013043008.xml
>From the photos, it loo
I couldn't follow the link Peter gave. I think the official UL Public Notice
for the issue is below. The receptacle does not comply with UL's requirements
and should not bear the UL mark.
http://www.ul.com/global/eng/pages/newsroom/publicnotices/detail/index.jsp?cpath=/global/eng/pages/newsr
Not acceptable for most construction according to NEC, but I can think of
one allowance per 70E.
UL says that their mark is not authorized for this unit.
Brian
-Original Message-
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Peter
Tarver
Sent: Monday, May 06, 2013 9:56 A
The FDA has specified IEC60601-1-2 and IEC60601-2-31 in various guidance
docs; and the FCC has MEP limits that can be used 'base reference', but this
is really for OSHA (29CFR1910) stuff. There are additional requirements in
other product-specific standards.
I do not have specific experience with
UL warning regarding a wall receptacle (socket outlet)
http://www.nema.org/News/Pages/UL-Warns-of-Potentially-Hazardous-Receptacl
e.aspx
I'm not aware if mixing of voltages is allowed in a duplex receptacle (I
suspect it is not, since wiring errors become more likely and segregation
of wiring and
12 matches
Mail list logo
