really
exists. Honest.
-Original Message-
From: sdouglas@anetMHS (DouglasScott){MHS:sdoug...@ecrm.com}
Sent: Thursday, September 25, 1997 8:49 AM
To: dmckean@anetMHS (Doug McKean){MHS:dmck...@paragon-networks.com};
JEichner; bceresne
Cc: emc-pstc@anetMHS (emc-pstc){MHS:emc-p
...@ieee.org};
JEichner; bceresne
Subject: EN 60950 and component heating
Hello All,
In testing some product for excessive temperatures I have come up
against the following problem. Consider a diode (part of a bridge
rectifier circuit) and the PCB underneath the component. If one measures
. Honest.
-Original Message-
From: slrate@anetMHS (SLR){MHS:slr...@earthlink.net}
Sent: Friday, August 22, 1997 2:42 AM
To: jonb@anetMHS (Jon Bertrand){MHS:j...@cirris.com}; JEichner; bceresne
Cc: emc-pstc@anetMHS{MHS:emc-p...@majordomo.ieee.org}
Subject: Re: Which EMC Directive Standards
...@statpower.com
Any opinions expressed are those of my invisible friend
--
From: dlocke@anetMHS{MHS:dlo...@advanced-input.com}
To: bceresne; ; JEichner
Subject: ESD Simulators
List-Post: emc-pstc@listserv.ieee.org
Date: Monday, July 14, 1997 10:54AM
My company is looking to purchase some
Below are the responses I received on this topic and a copy of my original
e-mail.
Thanks to everyone who replied - your responses are insightful and bound to
be helpful, and are much appreciated.
Jim Eichner
Statpower Technologies Corporation
jeich...@statpower.com
Any opinions expressed are
...@compuserve.com}
To: emc-pstc@anetMHS (IEEE list server){MHS:emc-p...@ieee.org}; JEichner;
bceresne
Subject: Re: Small 1000-4-3 Chamber
List-Post: emc-pstc@listserv.ieee.org
Date: Thursday, June 05, 1997 5:05PM
Jim Eichner asked if I had subscription inf. etc. for the mag. Test
Measurement
Here's the feedback from 2 sources:
Jim,
The EMC test chamber feature ran in Test Measurement Europe Magazine,
April/May 1997 issue. The focus was on low cost cells so they're all
basically
TEM cells, costing around L20k. Some interesting developments from companies
like
I am looking for some guidance on the following construction:
We have a remote control panel that contains an LCD display (approx. 2 x
1) mounted on a circuit board behind a metal panel. An opening in the
metal panel allows the user to see the screen, and is only marginally larger
than the
Does anyone out there know if this EN has been published in the OJ yet? The
standard is dated October 15, 1996, but I don't know its OJ status, dow,
etc.
Any help the forum can offer will be greatly appreciated.
Thanks,
Jim Eichner
Statpower Technologies Corporation
jeich...@statpower.com
@anetMHS{MHS:owner-emc-p...@majordomo.ieee.org}
To: emc-pstc@anetMHS{MHS:emc-p...@majordomo.ieee.org}; bceresne; JEichner
Subject: Overcurrent Protection for Receptacles
List-Post: emc-pstc@listserv.ieee.org
Date: Thursday, March 27, 1997 5:07PM
I am looking for some advice regarding overcurrent
I am looking for some advice regarding overcurrent protection for a few
common international AC receptacles.
Suppose we have a product that takes an input of 120/208Y from a 30A
service, and we want to put a North American convenience outlet on it (Nema
5-15R). We would put a 15A fuse or
Can anyone tell me what Directives there are (other than the LVD and EMCD)
that impact what we can and cannot do in our packaging and manuals? We are
thinking of rules controlling things like recyclability, minimum recycled
content, banned materials, over-packaging, etc. How does this relate
We are a looking for a high speed (see below) opto for a feedback loop
crossing the primary to secondary boundary (Reinforced insulation required)
in an EN60950 product. Creepage, clearance, distance through insulation,
and dielectric withstand are combining to make this a seemingly
We are trying to source an approved female 2-hole Schuko socket (not a plug)
for assembly onto a power cord. Our purchasing people have found one they
want to use, but the only approval mark on it is a highly stylized NF USE
(the NF appears above a large S with the U and the E cupped inside
--
From: rene@anetMHS{MHS:r...@ms1.hinet.net}
To: JEichner
Cc: emc-pstc@anetMHS{MHS:emc-p...@ieee.org}
Subject: Re: Triple-Insulated Wire and the RIS questi
List-Post: emc-pstc@listserv.ieee.org
Date: Wednesday, October 09, 1996 4:19AM
On Tue, 8 Oct 1996 jeich...@statpower.com wrote:
What I am
Sorry I don't have the original e-mail anymore, but this attempts to address
the question of what Directives apply to a tachometer for marine and
automotive applications.
There are 4 Directives I can think of that MAY apply. While it may be a
grey area whether you MUST comply with a certain
of my invisible friend
--
From: richn@anetMHS (Rich Nute){MHS:ri...@sdd.hp.com}
To: JEichner
4. Does our varnish impregnation help us in any way?
No. For the purposes of safety, varnish is not considered an
insulation. This is because (a) its thickness is not controlled
I have some questions that are probably old hat to some of you but have me
running in circles! I would take these to my TUV contact, but its a
holiday south of the 49th! Any help would be appreciated.
The discussion relates to a high-frequency switching transformer with a
primary (mains)
We are designing a DC-to-AC inverter for which we will be seeking UL, CSA,
and European approvals. The product gets its input power from the 12V
cigarette lighter socket in a car, but requires approvals because it
generates line voltage. The product's cigarette lighter plug will contain
a
We have an interesting situation that I am not sure how to deal with, and I
would welcome any advice I can get from the group, please.
I am being asked if we can sell products to customers who want their name
only to appear on the product, not ours, and so order products with no
labelling on
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