Hi
Entertaining Friday discussion, thank you all. I tend to conclude that for the
UK these items probably should not be on the market if:
* They claim compliance to EN 60950-1 in the DoC as in that I believe
that reliance on the breaker as the disconnect device is not recognized
Maybe the socket importers wish to claim that their sockets are fixed
installations and therefore excluded, under the EMC Directive, from the
need for conformance to Standards and from CE marking!
Richard
Richard Marshall Laboratories,
30 Ox Lane, Harpenden, Herts.,AL5 4HE, UK
+44
In message
04cab9802ba27a409548dd47de1da7ef8d8c128...@slomailprd01.polycom.com,
dated Fri, 13 Mar 2015, Pearson, John john.pear...@polycom.com
writes:
Any more thoughts? Concur?
No. There is no standard that applies to these products. You cannot
'cherry-pick' inapplicable standards to
Hi Charles,
Relevant (maybe) is the DOE for External Power Supplies (comes into force
in 2016):
http://www1.eere.energy.gov/buildings/appliance_standards/product.aspx/productid/23
On Fri, Mar 13, 2015 at 1:13 PM, Grasso, Charles
charles.gra...@echostar.com wrote:
Hello Scott - What Energy
Michael,
Altho I don't work with UL/IEC 60745-1 ed 4 (newer than your 2003 presumably
ed 3), the scope sez that it is harmonized with IEC 60335-1 which I
reviewed. 60335 has 4 figures that show the proper touch current setup for
single phase thru 3 phase measurements. The measurement circuit is
Hello Scott - What Energy Star/DoE standards are you referring to?
Best Regards
Charles Grasso
Compliance Engineer
Echostar Communications
(w) 303-706-5467
(c) 303-204-2974
(t) 3032042...@vtext.com
(e) charles.gra...@echostar.com
(e2) chasgra...@gmail.com
From: Scott Aldous
In message
OF24201270.2EDF97A3-ON85257E06.007BDBCE-85257E06.007D2D07@bureauveritas.
com, dated Thu, 12 Mar 2015, Chris Bramley
christopher.bram...@us.bureauveritas.com writes:
ANSI C63.4-2014 clause 5.2.2 requires a direct current resistance of
less than or equal to 2.5 milliohms between the
Hi all
Does anyone have a good link to some English version of the QCVN 4 list of
mandatory regulation for EEE or just some guide lines for type approval
regulation on EE in Vietnam?
Best regards,
Kim Boll
-
This
A suitable 4-port bonding meter is the VICI VC480C+ 3 1/2 Digital Resistance
Tester - available on-line for about $100.
Regards
Charlie
From: Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: 13 March 2015 02:58
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] LISN Bonding to Ground Plane
A ground plane made of copper, brass or aluminum of any extent (width as
well as length) will have microohms of resistance and the bonding
requirement of 2.5 milliohms is reasonable. It typically requires a
metal-to-metal faying surface bond (or wide bond strap) commensurate with
low inductance,
Group
Client has a piece of stand-alone equipment designed to be powered from a
co-located 12/24 V battery, and will not be powered from DC distribution systems
Def-Stan 59-411 has exemptions for some Conducted tests for where cables are
500mm in length - is there any such exemption in
Has anyone experimented with the bonding of their LISN and have data to show
the difference between different bonding methods?
1. bolted directly to the ground plane
2. isolated from the ground plane but bonded with a
- copper strap (of different widths)
- copper
In message
04cab9802ba27a409548dd47de1da7ef8d8c128...@slomailprd01.polycom.com,
dated Fri, 13 Mar 2015, Pearson, John john.pear...@polycom.com
writes:
Questions from the compliance side
The short answer to your questions is that these products have appeared
very quickly on the market and
In message d1285ee5.69ff8%ken.ja...@emccompliance.com, dated Fri, 13
Mar 2015, Ken Javor ken.ja...@emccompliance.com writes:
A ground plane made of copper, brass or aluminum of any extent (width
as well as length) will have microohms of resistance
I wonder if that's always true when you take
Chris:
I most recently used Solar LISNs; these models had an approximately 1/8
thick aluminum baseplate that extended beyond the front and rear edges. I
could get completely adequate bonding resistance by just using a clamp to
hold the aluminum flange snugly to the copper ground plane. I
Hi John,
Interesting topic.
Yes, these are offered in the US as well. Here's one example:
http://www.farnell.com/datasheets/1693478.pdf
According to the datasheet, this product is UL Listed to UL 498 and UL
1310. The online cert directory has this under UL file number E2186. The UL
category
MIL-STD-461 only requires CE testing on lines connected to platform primary
power. If the device does not connect to platform primary power, then CE101
and CE102 do not apply. Likewise CS101 would not apply, either.
Ken Javor
Phone: (256) 650-5261
From: Charlie Blackham
It's interesting to note that both the genuine and the counterfeit items
are marked as complying with BS5733, which is the catch all (and uniquely
British!) BS safety standard for electrical installation accessories which
don't fit into the scope any other particular safety standard - so that
At least in MIL-STD-461 and RTCA/DO-160 of which I have personal knowledge,
the EUT must be bonded to the ground plane in the same manner it would in
its intended installation. I assume other standards do likewise, but the
point is that any sort of LISN provides a standard source impedance
PS: another part of the question, for the items that ARE CE marked, is: are
they claiming compliance with LVD by reference to the essential protection
requirements of Annex I, and thus claiming that the combination of 60950-1
and BS5733 compliance does ensure compliance with the Directive?
I am not familiar with such devices sold in the UK, or outside of North America
for that matter. However, I can speak to what is available in North America.
Line voltage outlets with integral USB charging ports are not that uncommon in
the United States. A number of major outlet manufacturers
Does anyone know whether this updated standard includes requirements for
reduced spacings at high altitudes and more rigorous humidity testing, as we've
seen in other recent Chinese standards?
thanks,
Mike Sherman
Product Safety and Compliance Engineer
Graco Inc.
-
Here is a Friday discussion topic for you guys.
In the UK we are seeing a plethora of aftermarket 250v AC mains outlet sockets
which are supplied for installation, it seems by the homeowner, (this has been
a traditional practice over here. In the US I understand that this happens
less). The
This doesn’t answer all of the question, but the ASTA certification database is
searchable on line by various search terms, including by manufacturer, so you
should be able to see if a claim is valid, and hopefully it should tell you
what standards ASTA has applied.
John Cotman
Senior
My comments are threefold. 1. Searching UL databases is not a slam dunk: one
almost never discovers exactly the details sought. The UL file #'s for PWBs
and for insulating materials are the exceptions to this rule. In the past (I
worked for a competitor to UL), I would have to use the UL
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