Okay, you explain to my wife just what the heck I'm doing to her oven now.
She's still mad about the time I dried off my running shorts. (It evaporates
the water very well, but it overheats the nylon stitching and scorches the
heck out of the seams.)
Gary
-Original Message-
From:
Richard,
Before using PVC pipe, I would suggest testing it to see if it absorbs RF
(Some do!). Place a small sample in a microwave oven, along with a mug of
water to load the oven. If the PVC sample gets significantly warm after 1
minute try another type. Some PVC pipes have fillers added.
Hello EMC gods,
Just an update, my US Midwestern based company got nailed with another
traveling email worm this last week.
Navidad is running rampant between Midwestern based corporations right now;
it shows up as an attachment named navidad.exe.
From observation I can tell you it is much
Forwarding Test Equipment Reply for all who may need a source:
David Gaffney states
Dear Al,
Thanks for forwarding the inquiry for Product Safety Test Equipment. Our
manufacturing calibration of this specialized equipment can save
manufacturers an enormous amount of resources/time (vs.
Hi to all,
I'm concern about designing a proper protection from Surges, applies on
ports for indoor signal lines (E1, Ethernet) at telecommunication centers.
According to ETSI EN 300 386 a surge of 1.2/50 us, 0.5 kV shell be applied
between Tip Ring. Because of lack in space on the PWB we can't
-Original Message-
From: owner-emc-p...@ieee.org [mailto:owner-emc-p...@ieee.org]On Behalf Of
Peter Merguerian
Sent: Tuesday, December 12, 2000 12:11 PM
To: emc-p...@majordomo.ieee.org
Subject: Luminaire Controller to Save Energy
Dear All,
I am trying to search for safety standards
Hi Brent,
Specifically NOT meaning to argue, but only in pursuit of the TRUTH, isn't
the 10 uF feedthrough cap a perfectly well-defined source impedance above,
say 15/20 kHz, where the old MIL-STD-461A/B/C CE03 limit started? Which is
not to say that the current measurement is preferred, but
Hi Ken,
After twenty years or so of EMC testing, I find myself more often using the
word consistent rather than accurate. This is exactly the issue of n
ohm LISNs versus voltage or current probes. Current probes and voltage
probes are certainly as accurate as a LISN, but they leave in doubt
I disagree with a few statements made herein. Some differences are factual,
but I am interested in general response on my last issue.
1) The military discarded the 5 uH LISN a long time ago. Commercial
aerospace still uses it. In 1993 military adopted 50 uH LISN, essentially
same as CISPR.
Hi Ed:
First of all the floating secondary ground (if not connected
directly to earth) should be treated as part of the secondary circuit
which in many cases will require reinforced insulation to the primary
circuit according to the working voltage measured.
There are two
Hi Ken:
See my paper on floating circuits in the Product Safety
Newsletter:
http://www.ewh.ieee.org/soc/emcs/pstc/tech-spk.htm
This should answer all your questions. If not, please
get back to me, and I'll answer any additional questions
you may have.
Best regards,
Rich
ps:
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