In a message dated 1/23/2003 3:37:38 PM Central Standard Time,
shbe...@rockwellcollins.com writes:
Now that DO-160D, change 3 is published, does anyone have suggestions for
test labs that can perform mulitple burst multiple stroke lightning? I
believe that TUV in Minn, MN and Lightning
Listserver Administrative Notices:
1. No attachments.
---
Please do not post messages with attachments.
We have a large number of subscribers on plain
old telephone dial-up service. Messages with
attachments take a long time to download, and
the
Ditto if your using CSA 950
Kevin Keegan
KES Associates
Ottawa, Canada
From: Cereceres, David dcerece...@pelco.com
To: emc-p...@majordomo.ieee.org
Sent: Thursday, January 23, 2003 5:56 PM
Subject: RE: Electrical Safety - Canada
My understanding is that if you meet the US (UL) requirements
FROM A PREVIOUS EPISODE OF AS THE DB TURNS
But in the end it doesn't matter, does it? A dB is a dB. An increase in
SPL
of 6 dB is the same as an increase in sound power of 6 dB. Just like a
6dB
change in voltage results in a 6dB change in power. Wonderful things,
Group,
I am looking for a US lab that does chemical resistivity testing with
solutions used in NBC (Nuclear, Biological, Chemical) decontamination such
as DS-2. Would any of you know of such a lab?
Thank you
Darrell Locke
Advanced Input Devices
This message is from the IEEE EMC Society
Lisa,
If you go to www.semi.org and use thier site search function with key word
F47 I think you will find the latest revision of F47 is from february of
2000.
Also, searching on the international standards page of the same site you will
probably find no recent activities in the document.
A
Paul -
What is the applicable product standard?
What type of product is it?
What is the application?
Is the 220V mains connected? From somewhere else in a
primary circuit?
Is the 220V in a secondary circuit?
What levels of insulation are there between this circuit and
other types of
Paul, the minimum creepage distance and clearance requirements will be shown
in the EN or IEC standard applicable to the product for which the board will
be used.
These requirements will not be unique to Denmark or to DEMKO.
There will be references to other EN or IEC standards that allow
But in the end it doesn't matter, does it? A dB is a dB. An increase in SPL
of 6 dB is the same as an increase in sound power of 6 dB. Just like a 6dB
change in voltage results in a 6dB change in power. Wonderful things, those
dB's..
Dave Cuthbert
Micron Technology
From: drcuthbert
Susan,
I posed your question to a test lab that I've used in the past. They are
located outside of the Philadelphia
area. They maybe located a little bit closer? Their response and contact
info below...
John,
We can perform single stroke to Level 4 and Multiple Stroke and Multiple
Burst to
Peter, I can tell you that today in the USA, many jurisdictions require
Class II powered products to be Listed when installed in a commercial
environment. We ran into problems in Oregon, Washington, and several cities
elsewhere in the country where the local codes have been amended or are
Amund Richard -
Peter Merguerian had it pretty much right.
While not specifically written into the US NEC, the local
authorities having jurisdiction (AHJs) have not normally
required (let us say, it would've been extremely unusual)
Class II powered products to be safety certified, because
Dave,
All radio transmitting devices are bound by the RTTE Directive. Check Annex
I for the exempted devices. I think you will find that your device is not
exempt. I agree with Leslie on the appropriate Standards to apply. Don’t
forget about the product safety component of the Directive which
Don,
As confirmed in discussions with the European Commission regarding the
revision to LVD only yesterday, it is generally for each Member State to
define what language(s) are acceptable within its own borders.
EN 60950 does give guidance in this area, saying that - except for safety
Hi all,
I am in the process of designing a board that needs to receive DEMKO
approval. This board will have 220VAC directly connected to it through a
connector. Can anyone tell me what the spacing requirements would be for
this board? The board will be conformally coated to minimize
Amund, all electrical products are governed by the Canadian Electrical Code,
and the CSA safety standards form part of the code. The Canadian Code is
very similar to the US's National Electrical Code except for the inclusion
of the CSA standards. There is one major difference, however, that
Neil,
Thanks for your advice, although I have some remarks on this:
- If you disconnect the power/USB data by a watchdog timer circuit, the
product is not compliant with EN55024, criteria B.
- If the USB I/F is not connected to a cable and freezes because ESD Contact
(4kV) is applied on the
Dave,
From your email address, it looks like you are at a test lab.
Not sure what type of source the advice you got from, but this device falls
into RTTE Directive, in specific, the standards to test against shall be:
EN 300 330 series for radio parameters and EN 301 489 series for EMC
Hello Group:
How can i get some information on EIA standard of environment protect?
thank you in advance.
vijay
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.org/soc/emcs/pstc/
To cancel your
19 matches
Mail list logo
