I think this discussion has bogged down into too much
detail.
Overcurrent protection is required to provide protection
against overheating and fire (and sometimes shock) when
a fault occurs.
For plug-and-socket connected products, a mains fuse is
used to provide protection against LOAD
Point well taken. You're right, safety is relative.
I think that your message (below) points to the fact that products that are
double line fused should have labeling to say that they are double line
fused (as the clause in EN 60950 that you mention points out) It also
points to the fact that
Richard -
Basically, yes, though you may want to throw in a fudge factor to assuage
your caution/due diligence monkey.
FYI: The Maximum Operating Temperature (this is a normal operating condition
temperature) for a PWB is based on accelerated aging testing, and comparing
as received performance
I'm sure that many of you, as well as myself, under the label of Regulatory
Compliance, receive many issues outside of Safety/EMC. Usually if it has an
acronym, involves a foreign country, falls under the heading of a regulatory
requirement, or sales/marketing don't know who can handle it, it
Dear Group,
Thank you very much for all the wonderful feedback information from the
emc-pstc group in regards the compliance global issue.
Regards,
Richard
-
Terawave Communications Phone:
When a PCB is rated 105C or 130C or whatever, what does that really mean?
Can I really operate a 130C rated board at a maximum surface temperature of
130C for years without being concerned about reliability or safety? Is there
a relationship between de-rating and reliability or safety?
Richard
Does any one have Mil Std 1686B handy??? Need to compare test levels
between Mil Std 1686B, Class 3a and EN61000-4-2.
Any help will be appreciated.
M. Taylor
Hach Company
Loveland, Colorado
---
This message is from the IEEE EMC Society Product Safety
Invitation to:
SCV EMC Society Meeting
BLUETOOTH - A Viking King
Tuesday, October 10, 2000
The October Santa Clara Valley EMC Society meeting will be held at SGI in
Mountain View, 1600 Amphitheatre Pkwy., building 40, in the Presentation Center
above the lobby. Dinner will start at 5:30, and
Here are the CE and CB scheme countries segregated by EFTA, EEA, EU
membership:
Jeffrey Collins
MTS, Principal Compliance Engineer
Ciena Core Switching Division
jcoll...@ciena.com
www.ciena.com
The following is a list of CB countries:
Austria
Australia
Belgium
Canada -
China
Czech R.
Denmark
It seems to be www.cbscheme.org, instead of www.cbscheme.com
-Barry
---
On Tue, 10 October 2000, geor...@lexmark.com wrote:
Go to www.cbscheme.com and click on Countries
George
Dear Group,
Where can I get a global agency certification list that showed
Richard -
What is required is approval by any of the individual state's governmental
bodies in Australia. I can't find my list of authorities at the moment, but
perhaps someone else can.
Regards,
Peter L. Tarver, PE
ptar...@nortelnetworks.com
-Original Message-
From:
I thank all those who corrected my posted URL for the CB Scheme!
After 37 years of professional experience, I could claim that the clock
rate of the CPU in my head is the same as 1963, but that my fingers
are far faster. Alas, I fear the opposite is the more likely scenario.
George
Chris Maxwell asks: Can anybody shoot a hole in this theory with a single
fault condition?
This subject has been debated before, on this list and elsewhere.
Safety is always relative. In the scenarios you painted, Chris, the phase
conductor always has an intact fuse after the neutral fuse
Richard,
I will pass along what I know, which may not completely answer your
question.
Yes, external power supply adapters do require mandatory safety
certification. Since you mention laptop computers, I suggest the
appropriate standard would be that for ITE. Until recently, the
applicable
Hi,
The requirement is for The petroleum spirit to be used for the test is
aliphatic solvent hexane having a maximum aromatics content of 0,1 % by
volume, a kauri-butenol value of 29, an initial boiling point of
approximately 65 °C, a dry point of approximately 69 °C and a mass per unit
volume
That should be www.cbscheme.org
-Original Message-
From: geor...@lexmark.com [mailto:geor...@lexmark.com]
Sent: Tuesday, October 10, 2000 7:49 AM
To: r...@terawave.com
Cc: emc-p...@ieee.org
Subject: Re: Compliance Global list information
Go to www.cbscheme.com and click on Countries
Should be www.cbscheme.org
-Original Message-
From: geor...@lexmark.com [mailto:geor...@lexmark.com]
Sent: Tuesday, October 10, 2000 7:49 AM
To: r...@terawave.com
Cc: emc-p...@ieee.org
Subject: Re: Compliance Global list information
Go to www.cbscheme.com and click on Countries
Richard,
For participating countries refer to http://www.cbscheme.org/cbcntris.htm
Regards, Paul J. Smith, Teradyne, Boston
Richard Lee r...@terawave.com on 10/09/2000 05:54:10 PM
Please respond to Richard Lee r...@terawave.com
Several people have requested the information on the RTTE notification
process we just went through. I tried to post it to the group, but as the
message says below, the zip file was too big (~315K zipped). If anyone is
interested in the forms mentioned below please contact me via email and
Go to www.cbscheme.com and click on Countries
George
rlee%terawave@interlock.lexmark.com on 10/09/2000 05:54:10 PM
Please respond to rlee%terawave@interlock.lexmark.com
To: emc-pstc%ieee@interlock.lexmark.com
cc:(bcc: George Alspaugh/Lex/Lexmark)
Subject: Compliance
Quoted from
http://www.conformity.com/shop/newsbreaks.html#need
---
Need Help In Finding Copies Of MIL STD 461?
Dont ever say that you get nothing in return for all of your tax dollars. Its
now possible to obtain copies of MIL STD 461 E (the latest release) through the
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