:RE: [PSES] UL warning regarding a wall receptacle
Sent by:emc-p...@ieee.org
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
Subject: RE: [PSES] UL warning regarding a wall receptacle
But breakfast would take four times longer: P = E²/R
If R is fixed, and voltage E is reduced by a factor of 2, then power P goes
down by a factor of 4.
A more clever design with two heating elements would put those elements
either in series
...@selinc.com, emc-p...@ieee.org
Cc: 'Pete Perkins' peperkin...@cs.com
Date: 05/07/2013 12:16 PM
Subject:RE: [PSES] UL warning regarding a wall receptacle
Sent by:emc-p...@ieee.org
But then you do have to ask the question: for those appliances which are
purely ON or OFF like
*From:* John Allen
*Sent:* Tuesday, May 07, 2013 12:14
what is the point of including “sophisticated” circuitry
Judging from historical appliance development, a clock. Judging from the
direction of things, to turn your toaster off without your foreknowledge or
permission because your using
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
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
Tarver [mailto:ptar...@enphaseenergy.com]
Sent: Monday, May 06, 2013 11:56 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] UL warning regarding a wall receptacle
UL warning regarding a wall receptacle (socket outlet)
http://www.nema.org/News/Pages/UL-Warns-of-Potentially-Hazardous-Receptacl
e.aspx
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
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
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
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
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 are
-p...@ieee.org] On Behalf Of Peter Tarver
Sent: 06 May 2013 22:04
To: EMC-PSTC@listserv.ieee.org
Subject: RE: [PSES] UL warning regarding a wall receptacle
From: Pete Perkins
Sent: Monday, May 06, 2013 11:48
snip
I already have a mixed line voltage
and USB wallplate adaptor
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
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
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