Hi Kim,
The organization that allegedly controls the radio spectrum is SATRA
(http://satra.gov.za/). Their website doesn't appear to be working at the
moment.
Regards
Doug
Kim Boll Jensen @world.std.com on 11/21/2002
03:38:54 PM
Please respond to Kim Boll Jensen
Sent by: treg-appro...@w
The CIA world fact book is kind of interesting and shows some really
obscure places and makes for an interesting geography lesson. If you want
to get away from the crowds, Bouvet Island this is the ideal vaction spot,
1600km SW of CapeTown. (the only people I know who are likely to go there
are a
Eh?
John Woodgate @majordomo.ieee.org on 10/25/2002
11:01:45 AM
Please respond to John Woodgate
Sent by: owner-emc-p...@majordomo.ieee.org
To: emc-p...@majordomo.ieee.org
cc:
Subject: Re: English vs. American - very off topic, but in line with
current thread Re: Definition ?
Hi All,
We have run into a problem where the ESD discharges to the EUT are getting
onto the 100base T ethernet lines and damaging the support equiment Does
anyone know of a commercially available box that we could put onto or in
series with the Cat 5 cable ethernet line that would provide ESD pro
Hi Doug,
I have seen this recently on another cord connected power supply, like you
use on a laptop, and I wondered about that too. I am speculating, but it
may be that the product was approved before TUV had NRTL status i North
America, thus an approval by an OSHA/SCC accredited third party was
Hi All,
Does anyone know what the equivalent standard is for UL1863 in Europe?
Regards
Doug Beckwith
---
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.o
Hi Richard,
Try this URL. http://babelfish.altavista.com/translate.dyn
I have used this in the past and it fairly accurate. I suggest do the
translation and get someone who speaks the lingo to look at it for
technical correctness.
This is an inernational form, and I'm sure someone will be able t
The key word in 1.7.12 is 'country'. At the moment, Canada is one country,
with two official languages, either of which is legally acceptable. I will
say though, that regradless of the law, I believe we are morally obliged to
make safety instuctions as clear and understandable as possible, as a
m
Hi Kristiaan,
If you look at 60950, you are only required to mark your products in a
language which is acceptable in the country which it is being sold. In the
national deviations there are some specific countries, such as Germany, who
specify that safety instructions be in their particular count
Hello Peter,
There is a company in Denver, CO, called Qualmark who should be able to
answer your questions.
Regards
Doug
Peter Merguerian @majordomo.ieee.org on 07/31/2002
06:38:21 AM
Please respond to Peter Merguerian
Sent by: owner-emc-p...@majordomo.ieee.org
To: "\"EMC-PSTC (E-ma
Hi Rich,
A question. If you bridge the barrier between TNV and earth, for the
purposes of test 6A, I assume the test voltage is the upper limit of the
rated mains voltage of the equipment, (240V). Is this correct?
Regards
Doug
Rich Nute @majordomo.ieee.org on 05/16/2002 05:30:25 PM
Please
Sounds to me like someone has too much time on their hands. On the face of
it, it is amusing, but it is this kind perceived "hazard" that safety
agencies and lawyers love, with the result that ridiculous requirements
like this start appearing in safety standards. Maybe we should just ban all
elec
I deleted the file email immediately, but our IS group is asking what the
file name was. Can anyone remember what it was, so I can pass it on to
them.
Thanks
Doug Beckwith
Naftali Shani @majordomo.ieee.org on 04/24/2002 12:06:22
PM
Please respond to Naftali Shani
Sent by: owner-emc-p...
Richard,
Under the old Part 68 regime, there was a thing called a "Limited field
trial" administered by the Telcos. This was primarily used to do test
prototypes and do early field trials while you were waiting for the FCC to
issue the approval. You had to have a compliant product, i.e. have all
From: Douglas Beckwith@MITEL on 02/14/2002 02:06 PM
Hi All,
Thanks for the response. I just want to clarify that this is not our product, it
was prompted by a discussion I had with a someone. So far everyone has supported
my position, that re-test is required and a declaration to EN50082-1 is n
Hi All,
As we all know, I hope, EN55024 came into effect on July 1, 2001, and superceded
EN50082-1. If a product was legally being sold in the EU, before that date, and
was compliant to EN50082-1, does the product need to be re-tested to EN55024 to
be sold after that date, if there are no changes
From: Douglas Beckwith@MITEL on 01/29/2002 08:39 AM
Just a comment. UL approval is not mandatory in the US, although certain parties
would like to think so. Safety approval by an OSHA accredited agency is
mandatory. Some cities, such as Los Angeles have their own safety approval, and
there are
From: Douglas Beckwith@MITEL on 01/10/2002 11:17 AM
Aha, a man after my own heart. Now you are talking about real cars. As an ex
South African living in Canada, I still can't get used to the idea of driving on
the the wrong side of the road.
Doug Beckwith
"Veit, Andy" on 01/10/2002 08:29
From: Douglas Beckwith@MITEL on 12/19/2001 10:50 AM
Legally you are not required to have any margin, but you measurement uncertainty
is usually 3-4db, so you would set the margin to allow for at least your
measurement uncertainty. In my previous company we specified 6dB margin to Class
A and 3d
From: Douglas Beckwith@MITEL on 11/26/2001 10:10 AM
Hi Carmen,
There are a couple of good sources. Mil-Hdbk-338 has some very good design
prinicples. Rome Air Development Center (RADC) produce a very useful reliability
handook, have a look on their website. Another book that I have found very
u
From: Douglas Beckwith@MITEL on 11/15/2001 09:38 AM
I can't take these roonerspisims any more!
Doug
John Woodgate on 11/15/2001 03:33:44 AM
Please respond to John Woodgate
To: emc-p...@majordomo.ieee.org
cc:(bcc: Douglas Beckwith/Kan/Mitel)
Subject: Re: Conducted emisions - freq
From: Douglas Beckwith@MITEL on 11/08/2001 11:09 AM
Sounds like it should be changed to either "Alert", "Note" or similar. Does
anyone know where this requirement comes from?
Regards
Doug
"Robert Macy" on 11/07/2001 08:59:35 PM
Please respond to "Robert Macy"
To: Douglas Beckwith/Ka
From: Douglas Beckwith@MITEL on 11/07/2001 04:27 PM
Hi All,
If I may submit my two Canadian pesos worth. There is a US miltary handbook on
technical writing that discusses the defintion of these words and how they
should be used. Can't remember what it is off hand, but I will look it up and
pos
From: Douglas Beckwith@MITEL on 11/02/2001 08:21 AM
Sorry guys, finger trouble here with a mouse, didn't mean to send a reply.
Regards
Doug Beckwith
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion
Doug,
You might want to look at a paper that was presented at the Montreal IEEE
EMC Symposium by HP on measurements that they made on a table when starting
to test above 1 GHz. As you know, the FCC (ANSI C63.4) and CISPR 22
requirements simply call out that the table should be non-conducting.
From: Douglas Beckwith@MITEL on 10/31/2001 12:00 PM
I agree with everthing that has been said so far. The trouble comes with what
the agency "deems" to be critical. My experience with approvals agencies has
been that their definition of "Safety Critical" is somewhat unscientific. I have
often f
From: Douglas Beckwith@MITEL on 10/24/2001 02:05 PM
Hi Peter,
My understanding of 60950 is that distance through insulation applies here
(0.4mm). I have never had this issue with CSA.
Regards
Doug Beckwith
Mitel Networks
Peter Merguerian on 10/24/2001 09:38:19 AM
Please respond to Peter
From: Douglas Beckwith@MITEL on 08/31/2001 04:59 PM
The standards for North America are CSA C22.2No60950-00 or UL60950-00. The
standard for Europe is EN60950. I suggest that you get a CB scheme report and
certificate for other parts of the world.
Doug Beckwith
Mitel Networks
David Heald on
From: Douglas Beckwith@MITEL on 08/14/2001 08:53 AM
Hello Kim,
I believe NEMKO could help you. They have a very strong presence in North
America. Nemko Canada and are fully accredited by the FCC and IC. The person to
contact is Russel Grant at Nemko Canada (rgr...@nemkoca.com) and he will be abl
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