Elliott Laboratories Inc. is a world-class EMC and Product Safety
compliance engineering service provider specializing in product design
evaluations to meet regulatory requirements, state-of-the-art laboratory
testing, and global product submittals and certifications. Currently we
have the
Greetings Joe and everyone,
I can't speak for lab equipment, but I know that for UL 1950 (EN
60950/ IEC 950) my former employer (a recent NRTL who works/worked
closely with the biggest) would always test with the mains switch both
on and off. If you think about it, it makes sense to test with
How about the good old HP Harmonic Flicker Test Sysytem that Agilent was
thinking about discontinuing support on? (remember that thread a while
ago?) I don't know about the current (it seems like I remember 9-10A
max), but I know you could dial in any voltage and frequency
(DC-500Hz??) and it
Joe,
The situation which you describe is absolutely a failure. If you doubt this
(and I am not trying to be flip) try using two fingers (OF THE SAME HAND!)
instead of the meter. This is what your customers might experience. If you
have that much capacitance to hold a charge at that level after
Hello group,
Has anyone dealt with the industrial EMC test requirements for the
European Union?
In particular, EN 61326 (EMC requirements for Electrical Equipment for
Measurement,
Control and Laboratory Use) specifies surge test levels of 1 kV
line-to-line and 2 kV
line-to-ground.
Martin,
I use UL 1950 and in clause 2.1.10, which covers the same requirement, it
specifically states that the test be conducted with the power switch in both
positions on and off. I feel the NRTL is correct and your equipment does present
a hazard. You either need to move the capacitors after
A summary of the emc-pstc survey results is now available
on the Product Safety Newsletter web site:
http://www.ewh.ieee.org/soc/emcs/pstc/
The results are in a 16k pdf file. If you are unable to
access our web site, send e-mail to either Jim or Rich
and we will be happy to send you
We evaluate our laboratory equipment to UL 3101-1, CSA 1010.1 and EN
61010-1.
Section 6.10.3 of UL 3101-1 states If plug pins of cord-connected
equipment receive a charge from an internal capacitor, the pins shall not
be HAZARDOUS LIVE 5s after disconnection of the supply. We have always
Sir,
Please do not take as flame.
I've yet to work at a company, that make products for connection to AC
mains, intended for use in multiple countries, and being both serious
professional about testing for compliance and performance, that did not have
at least one of these instruments in the
Understand Scandinavia is part of EU or EFTA and LVD has to be applied to
electronics and electrical products. Scandinavia includes a number of
countries. Do they commonly accept one standard, I learnt German standard,
or different country standards?
We have following ideas to approve the
PSNet
The requirements for visible LED's which are not lasers are contained
herein:
IEC 60825-6: Safety of laser products - Part 6: Safety of products with
optical sources, exclusively used for visible information transmission to
the human eye
The objectives of this technical
Daren,
Thanks, but you guys lost me a ways back. :) (Originally the conversation
was about single phase
two-phase etc wasn't it?) What is has evolved into is very interesting but
outside the scope
of my expertise and knowledge. I do have some High School Electronics (back
in the days of
Hi Gunter and the group,
The following link will take you to the Oxford University
that has several short courses you may find interesting:
http://www.conted.ox.ac.uk/ousep/
Doug
gunter_j_ma...@embraco.com.br wrote:
Colleagues
I am looking for short
Gaby -
there is a test lab, the National Communications Research Institute,
which provides testing (including radio equipment) among their services:
http://www.cnscc.ro/co/prezentare/index.html
I think they have the info you are looking for.
Alain Sam-Lai
Gigabyte Technology
-Original
I wasn't going to weigh in on this, but here goes. For residential and
commercial non-industrial use, heating and air-conditioning must consume the
most power. Since these are feedback controlled systems, lowering power
consumption by reducing line voltage would only increase the amount of
Hello all,I have written a short introductory article on reverberation chambers
for a local EMC magazine here in Australia.This is enclosed for anybody who has
similar interests.Thanks
Arun Kaore
arun_ka...@yahoo.com
-
Do You Yahoo!?
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Another option might be to use a variac (adjustable auto transformer) to
adjust the input.
-Original Message-
From: Kenneth McCormick [mailto:kmccormick...@hotmail.com]
Sent: Thursday, May 10, 2001 4:26 PM
To: emc-p...@majordomo.ieee.org
Subject: Re: looking for used power supply
It
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