Folks,
With the indulgence of the list-server administrators (many thanks)
and a bit beyond the usual safety/emc (and Friday humor) subject matter,
please be advised of a standard development effort recently kicked off by
the IEEE, sponsored by Stationary Batteries Committee of
Hello Naftali,
You might be able to find this type of outdoor transformer under the category
of 'Swimming pool and spa transformers'. The primary rating is 120 volts and
the maximum secondary ratings are 15 volts RMS and 1 KVA. The transformers are
provided with integral overcurrent
Hi Chris:
OSHA rules apply to employers.
OSHA electrical rules require employers (1) to
use only electrical products that have been
certified by an NRTL, or (2) in the case of
custom products, to test the product in place.
If you sell a non-NRTL-certified custom product
to an employer
I read in !emc-pstc that Price, Ed ed.pr...@cubic.com wrote (in
b78135310217d511907c0090273f5190d0b...@curly.ds.cubic.com) about 'VSWR
FROM ATTACHED DATA' on Tue, 29 Oct 2002:
Ohms (output port shorted or open). Now, I'll assume that the driving RF
generator had a source impedance of 50 Ohms.
Hi Paul,
Take a look at ISO 7637-1 for 12V systems and -2 for 24V vehicles.
Jim
-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Denomme, Paul
S.
Sent: Tuesday, October 29, 2002 9:16 AM
To: 'emc-p...@majordomo.ieee.org'
I presented a long paper related to this subject about field-to-wire
coupling in the commercial and military arenas, which really translates into
building vs. vehicle installation, which in turn means electrically how
close and how well-defined is the ground plane. Here is the reference:
On
List members,
For one of our applications, we have a need for an off-the-shelf an AC
transformer (input: 120 Volts, 60 Hz, NEMA 5-15 plug, may consider NEMA
1-15. Output: 6 - 30 Volts, screw-on terminals, may consider flying leads)
that can operate over industrial temperature ranges (-40 to +85
I believe your customer is referring to SAE-J551.
--
From: Denomme, Paul S. paul.deno...@viasystems.com
To: 'emc-p...@majordomo.ieee.org' emc-p...@majordomo.ieee.org
Subject: RFI/EMI requirements for the automotive industry
Date: Tue, Oct 29, 2002, 8:15 AM
Hi All,
Can someone
-Original Message-
From: Gordon,Ian [mailto:ian.gor...@edwards.boc.com]
Sent: Tuesday, October 29, 2002 3:25 AM
To: 'IEEE EMC SAFETY PSTC'
Subject: VSWR FROM ATTACHED DATA
People
You may remember that you helped me a few weeks ago with VRC/VSWR
assessments.
As part of the same work
Thanks Ken,
Yes, 25 dBuV/m not 25 uV/m. I also found the test set up rather
strange. Certainly not consistent with CISPR but then the aircraft
environment is entirely different than most other equipment
installations. I agree, this makes it hard to compare to CISPR
testing. We may have over
Greetings all,
One of our Engineering Teams wants to use a NiCad battery pack in an upcoming
product (laboratory instrument). I'm suppose to become an expert on Worldwide
Environmental Impact of NiCad batteries in 24 hours so I can give a report in a
meeting (haven't we all been there before?).
I am on a search for a standard or standards which describe LED Color
versus Wavelength (i.e. X color Red = X wavelength). Does anyone know of
any standards that describe LED Color versus Wavelength or where I should
look?
Thanks,
Don MacArthur
---
-Original Message-
From: Denomme, Paul S. [mailto:paul.deno...@viasystems.com]
Sent: Tuesday, October 29, 2002 6:16 AM
To: 'emc-p...@majordomo.ieee.org'
Subject: RFI/EMI requirements for the automotive industry
Hi All,
Can someone please inform me of the standards RFI/EMI
Hi All,
Can someone please inform me of the standards RFI/EMI standards that
are required in the automitive industry. This would be for a microprocessor
controlled item that is part of the vehicle. My customer stated that
EMI/RFI specifications are Standard Automotive. What I am
Richard,
From UL's database, the CL3P cable is a Power Limited Cable - Indicates
cable intended for use in Class 2 or Class 3 circuits within buildings in
ducts or plenums or other spaces used for environmental air in accordance
with Section 725.61(A) of the NEC. This cable exhibits a maximum
I too have had some struggles with this concept.
I now tend to think of Basic, Reinforced and Double more in terms of an
insulation strength as opposed to an actual material. For instance, Double
insulation can be provided by a properly set and maintained distance through
air, i.e no
I'm not sure if DO-199 or 233 has EMC requirements but I am very
interested if you come with any. IEC 62A/MT 23 is in the process of
amending 60601-1-2 for medical equipment used in the aircraft
environment. We have based our requirements on the environment
specified in DO-160. In general,
People
You may remember that you helped me a few weeks ago with VRC/VSWR
assessments.
As part of the same work I am attempting to assign a VRC/VSWR for a coupling
de-coupling device (CDN) but have not been able to get a typical value from
the manufacturer of the device. However, I have been sent
Garry,
When I did a similar test some time ago, also with helium, I used a non-
electrochemical oxygen sensor (details on request) to monitor the amount
of air that had re-entered the battery enclosure rather than the helium
left. The setup worked well if I remember correctly.
Best regards
Just back from vacation (damn it) and need to look into measuring the
hydrogen ventilation capability of a battery compartment. Seems pretty
straightforward, and Helium can be used in place of hydrogen. Anybody have a
source for sensors. I'm kind of hoping I can find something that
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