RE: What happened to the IEC60417 symbol library?

2001-12-15 Thread ggarside


Surely  IEC 60417-1 and ..617 are different standards?  The former is
Graphical Symbols for use on EQUIPMENT... (my emphasis). Whereas:

IEC 60617-1GRAPHICAL SYMBOLS FOR DIAGRAMS  [about 13 parts, -1 to -13]
IEC 60617-1same title
(Still interesting, I'd missed that announcement about IEC 60617.)

By the way, if you do buy (PDF available from ANSI or IEC) IEC 60417, part
1 is now all you need to browse the thumbnail images, descriptions, etc.
Part 2 (IEC 60417-1) has the full-size images for reproduction purposes.

While I have my index open, some other possibly relevant documents:
ISO 3864  Safety Colours and Safety Signs
ISO 7000  Graphical Symbols for use on Equipment.
EN 61310-1 SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION -
REQUIREMENTS FOR VISUAL, AUDITORY AND TACTILE SIGNALS
 [symbols for operation, prohibition, warning, mandatory, escape, fire
fighting]
EN 61310-2 [...]-REQUIREMENTS FOR MARKING
 [symbols for: Ground(earth), ac, dc, +, -, class II, III, !, dangerous
voltage]
92/58/EEC MINIMUM REQUIREMENTS FOR THE PROVISION OF SAFETY AND/OR HEALTH
SIGNS AT WORK
ANSI Z535.1SAFETY COLOR CODE
ANSI Z535.2 ENVIRONMENTAL AND FACILITY SAFETY SIGNS
ANSI Z535.3 CRITERIA FOR SAFETY SYMBOLS
ANSI Z535.4PRODUCT SAFETY SIGNS AND LABELS
ANSI Z535.5 ACCIDENT PREVENTION TAGS


PS: I don't have an answer to the original question. (I always assumed the
w3.hike.te.chiba-u.ac.jp site was an unofficial [and useful] resource; it
did not appear to be an official IEC site (although, a Prof. Ikeda is
listed in the IEC committee documents).) Maybe the site is just temporarily
down?

However, Google also lists other sites, such as:
http://www.geda.seul.org/symlibrary/IEC417/small.html
http://www.geda.coelacanth.com/symlibrary/IEC417/small.html   [mirror]

best regards, glyn


Glyn R. Garside
TUV Rheinland of North America, Inc.  (Chicago Office)
http://www.us.tuv.com  TEL 847-562-9888 ext 25


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Re: 2 Phases in North America

2001-12-15 Thread Hans Mellberg

ok folks. This topic needs to be clarified.

With respect to each other, by definition, two conductors have a potential
difference at 180 degrees. Period. The 90 degree stuff may pertain to current 
but
not to voltage. You would need a four-phase transformer to get 90 degree 
phasing and
simply it does not exist. Voltage, is usually measured: wrt ground, wrt other
reference conductor such as neutral or wrt to another voltage (hot) conductor. 
In
some cases, the voltage difference between ground and two other conductors may 
be
120/240 degrees such as in a three phase system. So, no matter how you measure
voltage it will either be at 120, 180 or 240 degrees wrt to some other 
conductor. 

In the US there have been many systems of low voltage (staying below
480V)distribution yielding the following voltages:

480/240/120 
480/208/120 from three three phase
480/230/115 single split phase
230/115 single split phase motor control voltage
220/110 single split phase older home voltages
208/120 from three phase
480/277 (for fluorescent lighting) 
117 (where did this come from? seen in many older HP instruments)
Open Delta (3, 4 or 5 wire, when one is grounded into neutral its called a
stinger)
Split phase (three or four wire)
Y (four and five wire)

Hope this stirrs the pot


=
Best Regards
Hans Mellberg
Regulatory Compliance  EMC Design Services Consultant
By the Pacific Coast next to Silicon Valley,
Santa Cruz, CA, USA
408-507-9694

__
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RE: What happened to the IEC60417 symbol library?

2001-12-15 Thread robertj

Its now available from IEC (at a price - copyrighted you know):

IEC 60617 Graphical Symbols database
The IEC 60617 Graphical Symbols for Diagrams database
(http://domino.iec.ch/symbols) has now been launched officially.

The database offers users a dynamic facility featuring some 1 400
symbols in GIF format with extensive new metadata facilitating a very
user friendly search function (Free text search of metadata; search by:
Publication, Keyword, Shape, Function, Application, and Symbol ID and
Status). Access is by means of a username and password and subscribers
will benefit from knowing that they remain up-to-date on all new symbols
published during the selected subscription period (3, 6, 12 or 24
months).

What symbols are included in the database?
. Conductors and connecting devices
. Basic passive components
. Semiconductors and electron tubes
. Production and conversion of electrical energy
. Switchgear, controlgear and protective devices
. Measuring instruments, lamps and signalling devices
. Telecommunications transmission, switching and peripheral equipment
. Architectural and topographical installation plans and diagrams 

Subscriptions to the database
Subscriptions can be purchased through the IEC National Committees or
NC-appointed Sales Outlets, or directly from the IEC Web Store (separate
articles available for each subscription period - 3, 6, 12 or 24
months). Please note that multi-user network licences are also
available. 

IEC 60617-DB-3M (2001-11) Ed. 1.0 - Graphical symbols for diagrams -
3-month subscription to online database comprising parts 2 to 11 of IEC
60617
SC 3A - CHF 169,00 for single user and CHF 219,70 for a three-user
network license

IEC 60617-DB-6M (2001-11) Ed. 1.0 - Graphical symbols for diagrams -
6-month subscription to online database comprising parts 2 to 11 of IEC
60617
SC 3A - CHF 297,00 for single user and CHF 386,10 for a three-user
network license

IEC 60617-DB-12M (2001-11) Ed. 1.0 - Graphical symbols for diagrams -
12-month subscription to online database comprising parts 2 to 11 of IEC
60617
SC 3A - CHF 509,00 for single user and CHF 661,70 for a three-user
network license

IEC 60617-DB-24M (2001-11) Ed. 1.0 - Graphical symbols for diagrams -
24-month subscription to online database comprising parts 2 to 11 of IEC
60617
SC 3A - CHF 933,00 for single user and CHF 1212,90 for a three-user
network license

For customers that have already purchased IEC 60617 publications, we are
pleased to be able to offer a special introductory price. If you wish to
subscribe, please contact Nader Kazemi (Tel: + 41 22 919 0228 / E-mail:
n...@iec.ch) for further information.

IMPORTANT: Parts 2 to 11 of IEC 60617 (1996) Ed. 2.0 have been withdrawn
and replaced by the database version.



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RE: 2 Phases in North America

2001-12-15 Thread Brent DeWitt
Hi all,

Even though I am an electrical engineer, I'm terribly confused by this post.
I have always believed (and on a few occasions measured) the standard US
home system feed.  There is no choice of 240 volts.  The 220 volt feed
used by larger devices is two 118 VAC phases 120 degrees apart.  The math
seems to work.

WRT Cortland's post, I guess I don't see ground (or close to it neutral)
as having a phase.  If that is believable, then a single phase system is
not so hard to believe.

Just a few thoughts,

Brent DeWitt
  -Original Message-
  From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of bogdan matoga
  Sent: Friday, December 14, 2001 3:12 PM
  To: Cortland Richmond
  Cc: Robert Johnson; 'Barry Esmore'; 'EMC-PSTC Forum'
  Subject: Re: 2 Phases in North America


  Dear Esquire:
  May I suggest that you partake in a course called Basic Electricity 001?
  Bogdan.
  Cortland Richmond wrote:

 By the definition below, *single phase* AC would require one wire with
no return.  I want to see THAT one work before I pay for it!
Cortland Richmond
(the above being my own opinion, not a statement of my employer's)

Robert Johnson wrote:

  This has just reopened the old two phase controversy again. Ed has
done a good job of describing the systems in detail, but be careful with the
terms.
  Ask an electrical engineer about a 120/240 volt home service and he
will call it a two phase system. Two phases 180 degrees out of phase is
technically correct.
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Re: 2 Phases in North America

2001-12-15 Thread Cortland Richmond

This is rather similar to asking what the first harmonic of the power line
frequency is.  (grin!)

Cortland

Jayasinghe, Ryan wrote:

 180° out of phase?



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RE: Sometimes product safety just isn't enough

2001-12-15 Thread Pettit, Ghery

Gotcha!

-Original Message-
From: Robert Macy [mailto:m...@california.com]
Sent: Friday, December 14, 2001 4:40 PM
To: Pettit, Ghery; James Collum; emc-p...@majordomo.ieee.org
Subject: Re: Sometimes product safety just isn't enough


AR!!

I went there, read down through much, before it soaked in.

   - Robert -

-Original Message-
From: Pettit, Ghery ghery.pet...@intel.com
To: 'Robert Macy' m...@california.com; James Collum
james.col...@usa.alcatel.com; emc-p...@majordomo.ieee.org
emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Friday, December 14, 2001 4:15 PM
Subject: RE: Sometimes product safety just isn't enough


Now, you do need to worry about some of these obscure chemicals.  There is
an entire web page devoted to the hazards of DHMO, di-Hydrogen Monoxide.
www.dhmo.org  Check this out.  It could save someone you love.

Ghery Pettit
Intel


-Original Message-
From: Robert Macy [mailto:m...@california.com]
Sent: Friday, December 14, 2001 1:39 PM
To: James Collum; emc-p...@majordomo.ieee.org
Subject: Re: Sometimes product safety just isn't enough



In deference to the warning label on the peanuts bag.  Some people have life
threatening allergies to peanuts and take warnings such as that and warnings
on cookies, etc very seriously.  But then again, you'd think with the main
label Peanuts would be sufficient.  Perhaps, someone is making peanuts out
of soy beans already.

- Robert -

   Robert A. Macy, PEm...@california.com
   408 286 3985  fx 408 297 9121
   AJM International Electronics Consultants
   619 North First St,   San Jose, CA  95112


-Original Message-
From: James Collum james.col...@usa.alcatel.com
To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Friday, December 14, 2001 1:57 PM
Subject: Re: Sometimes product safety just isn't enough


Following a recent airline flight, I was given a bag of peanuts, marked
Peanuts which contained a health warning contains peanuts.
I was thinking that in a similar style that maybe electrical products
could have an added warning may contain electricity.
The may would elude to the connection of a mains cable for mains
powered equipment, or even batteries in battery powered equipment.  I think
the IEC should be prompt to act in this vital area.
Following this illogical train of thought, the swimming pool should have
a warning contains water and the ladder could have a warning may alter
altitude.
But on a slightly more serious note (but not much) If I am ever present
when someone is about to do something interesting with electricity I always
advise that the person about to do the deed make sure to note who present
will provide the kiss of life when it all goes pear shaped. It tends to
work (although I don't know why, as I think I'm very kissable).


Jim


-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Robert Johnson
Sent: woensdag 12 december 2001 19:28
To: emc-p...@majordomo.ieee.org
Subject: Sometimes product safety just isn't enough

I couldnââ'¬â¢t help passing on this reference to a
bit of unforeseeable misuse.?xml:namespace prefix = o ns =
urn:schemas-microsoft-com:office:office /

http://electrical-contractor.net/ubb/Forum4/HTML/48.html
Bob Johnson


.

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Re: Sometimes product safety just isn't enough

2001-12-15 Thread Robert Macy

AR!!

I went there, read down through much, before it soaked in.

   - Robert -

-Original Message-
From: Pettit, Ghery ghery.pet...@intel.com
To: 'Robert Macy' m...@california.com; James Collum
james.col...@usa.alcatel.com; emc-p...@majordomo.ieee.org
emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Friday, December 14, 2001 4:15 PM
Subject: RE: Sometimes product safety just isn't enough


Now, you do need to worry about some of these obscure chemicals.  There is
an entire web page devoted to the hazards of DHMO, di-Hydrogen Monoxide.
www.dhmo.org  Check this out.  It could save someone you love.

Ghery Pettit
Intel


-Original Message-
From: Robert Macy [mailto:m...@california.com]
Sent: Friday, December 14, 2001 1:39 PM
To: James Collum; emc-p...@majordomo.ieee.org
Subject: Re: Sometimes product safety just isn't enough



In deference to the warning label on the peanuts bag.  Some people have life
threatening allergies to peanuts and take warnings such as that and warnings
on cookies, etc very seriously.  But then again, you'd think with the main
label Peanuts would be sufficient.  Perhaps, someone is making peanuts out
of soy beans already.

- Robert -

   Robert A. Macy, PEm...@california.com
   408 286 3985  fx 408 297 9121
   AJM International Electronics Consultants
   619 North First St,   San Jose, CA  95112


-Original Message-
From: James Collum james.col...@usa.alcatel.com
To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Friday, December 14, 2001 1:57 PM
Subject: Re: Sometimes product safety just isn't enough


Following a recent airline flight, I was given a bag of peanuts, marked
Peanuts which contained a health warning contains peanuts.
I was thinking that in a similar style that maybe electrical products
could have an added warning may contain electricity.
The may would elude to the connection of a mains cable for mains
powered equipment, or even batteries in battery powered equipment.  I think
the IEC should be prompt to act in this vital area.
Following this illogical train of thought, the swimming pool should have
a warning contains water and the ladder could have a warning may alter
altitude.
But on a slightly more serious note (but not much) If I am ever present
when someone is about to do something interesting with electricity I always
advise that the person about to do the deed make sure to note who present
will provide the kiss of life when it all goes pear shaped. It tends to
work (although I don't know why, as I think I'm very kissable).


Jim


-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Robert Johnson
Sent: woensdag 12 december 2001 19:28
To: emc-p...@majordomo.ieee.org
Subject: Sometimes product safety just isn't enough

I couldnââ'¬â¢t help passing on this reference to a
bit of unforeseeable misuse.?xml:namespace prefix = o ns =
urn:schemas-microsoft-com:office:office /

http://electrical-contractor.net/ubb/Forum4/HTML/48.html
Bob Johnson


.


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Re: Sometimes product safety just isn't enough

2001-12-15 Thread Doug McKean

I think it's worth mentioning interpretations of  the 
definition of end user in 950.  In my opinion, end 
users are obviously people who use the equipment 
and are also not expected to be aware of the hazards. 

That's why, in my opinion, the thread about safety 
critical parts was so difficult to pin down. We as 
safety engineers know some rather obvious hazards 
which could occur during design, assembly, and use. 
But, in selling to the general consumer market, the 
product is being put in the hands of maybe uneducated 
or non-technical people of a variety of ages.  As such, 
you have to anticipate little to no experience or 
knowledge. 

Regards, Doug McKean 




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Re: Regulatory General Discussion : ouput of Compliance group

2001-12-15 Thread Doug McKean

Andre, Pierre-Marie wrote:

 So has anybody some thoughts or argument on the measurement
 or evaluation of an Compliance Group  ?

Well, I'd hate to let the dirty little secret out of the bag for those
of
us who would fall under such and evaluation.  Important in such an
evaluation would be that the company has allowed the compliance
engineer to have significant input to the design/mfring processes.

I've been in companies where evaluations from the compliance
engineer amounted to nothing more than a suggestion.  Very
frustrating.  Other places had the compliance engineer greatly
involved as a signatory in product release and with ECR/ECOs.

Start with an ideal world where the compliance engineer has
complete planning, budgeting, signatory/approval powers with
the complete product cycle from prototype-to-product release-to
product obsolescence.  Consider that as the complete model.
Then, as the person has less and less involvement/approval
power in those areas, they are thus less responsible for them
and thus, they are not to be evaluated in those areas.

You'll probably find the typical compliance engineer ends up
in reality scheduling tests w/no approval powers, has input to
ECR/ECOs but no signatory powers, inputs into product
design by way of memos, sometimes are the last to know about
significant design changes, and might answer to someone who
knows little about compliance engineering.

IMO, evaluation would be difficult.

Regards, Doug McKean



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Re: Sometimes product safety just isn't enough

2001-12-15 Thread Doug McKean

I've dropped the picture into a Word document and titled it, 

  You Can Design Only So Much 
Common Sense Into A Product.  

Then at the bottom, put 

  Hand drill = $35
  Metal ladder = $50 
  Bare feet on metal ladder in pool ... Priceless 

 and posted it outside my cubicle. 

It's been quite a hit ...  Thanks. 

Regards, Doug McKean 




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RE: Sometimes product safety just isn't enough

2001-12-15 Thread Pettit, Ghery

Now, you do need to worry about some of these obscure chemicals.  There is
an entire web page devoted to the hazards of DHMO, di-Hydrogen Monoxide.
www.dhmo.org  Check this out.  It could save someone you love.

Ghery Pettit
Intel


-Original Message-
From: Robert Macy [mailto:m...@california.com]
Sent: Friday, December 14, 2001 1:39 PM
To: James Collum; emc-p...@majordomo.ieee.org
Subject: Re: Sometimes product safety just isn't enough



In deference to the warning label on the peanuts bag.  Some people have life
threatening allergies to peanuts and take warnings such as that and warnings
on cookies, etc very seriously.  But then again, you'd think with the main
label Peanuts would be sufficient.  Perhaps, someone is making peanuts out
of soy beans already.

- Robert -

   Robert A. Macy, PEm...@california.com
   408 286 3985  fx 408 297 9121
   AJM International Electronics Consultants
   619 North First St,   San Jose, CA  95112


-Original Message-
From: James Collum james.col...@usa.alcatel.com
To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Friday, December 14, 2001 1:57 PM
Subject: Re: Sometimes product safety just isn't enough


Following a recent airline flight, I was given a bag of peanuts, marked
Peanuts which contained a health warning contains peanuts.
I was thinking that in a similar style that maybe electrical products
could have an added warning may contain electricity.
The may would elude to the connection of a mains cable for mains
powered equipment, or even batteries in battery powered equipment.  I think
the IEC should be prompt to act in this vital area.
Following this illogical train of thought, the swimming pool should have
a warning contains water and the ladder could have a warning may alter
altitude.
But on a slightly more serious note (but not much) If I am ever present
when someone is about to do something interesting with electricity I always
advise that the person about to do the deed make sure to note who present
will provide the kiss of life when it all goes pear shaped. It tends to
work (although I don't know why, as I think I'm very kissable).


Jim


-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Robert Johnson
Sent: woensdag 12 december 2001 19:28
To: emc-p...@majordomo.ieee.org
Subject: Sometimes product safety just isn't enough

I couldnââ'¬â¢t help passing on this reference to a
bit of unforeseeable misuse.?xml:namespace prefix = o ns =
urn:schemas-microsoft-com:office:office /

http://electrical-contractor.net/ubb/Forum4/HTML/48.html
Bob Johnson


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Re: What happened to the IEC60417 symbol library?

2001-12-15 Thread John Woodgate

I read in !emc-pstc that POWELL, DOUG doug.pow...@aei.com wrote (in
b44016f6854cd511a6470003476b45e4381...@exchange.aei.com) about 'What
happened to the IEC60417 symbol library?', on Fri, 14 Dec 2001:
But of course the link is dead.  Does anyone know if it moved?

Go to http://www.iec.ch and contact the IEC directly. There is a new
URL.
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
After swimming across the Hellespont, I felt like a Hero. 

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Re: 2 Phases in North America

2001-12-15 Thread John Woodgate

I read in !emc-pstc that Price, Ed ed.pr...@cubic.com wrote (in
b78135310217d511907c0090273f5190d0b...@curly.ds.cubic.com) about '2
Phases in North America', on Thu, 13 Dec 2001:
At this point, you still have a single-phase system. The voltage is 
240 Vrms, from one hot line to the other. The voltage from each 
hot line to neutral (and ground) is 120 Vrms. 

Well, you can also look at it as a two-phase system with 180 degrees
between phases. But since the load is very rarely balanced, so the
neutral is normally a current-carrying conductor, it doesn't really meet
the criteria of a poly-phase system.
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
After swimming across the Hellespont, I felt like a Hero. 

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Re: Sometimes product safety just isn't enough

2001-12-15 Thread John Woodgate

I read in !emc-pstc that Nerad, DarenHS-SNS daren.ne...@hs.utc.com
wrote (in 47c2376d5478d4119fa800508be390ee025be...@hsmx53nt.rkd.snds.co
m) about 'Sometimes product safety just isn't enough', on Fri, 14 Dec
2001:
and that of Wile E. Coyote and his equipment from the ACME  
 (obviously, 
most of it was not safety approved))

My impression is that it does exactly what it is supposed to, but the
user does not follow the instructions. In fact, have you ever seem W E C
even read them? (;-)
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
After swimming across the Hellespont, I felt like a Hero. 

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Re: Sometimes product safety just isn't enough

2001-12-15 Thread Robert Macy

In deference to the warning label on the peanuts bag.  Some people have life
threatening allergies to peanuts and take warnings such as that and warnings
on cookies, etc very seriously.  But then again, you'd think with the main
label Peanuts would be sufficient.  Perhaps, someone is making peanuts out
of soy beans already.

- Robert -

   Robert A. Macy, PEm...@california.com
   408 286 3985  fx 408 297 9121
   AJM International Electronics Consultants
   619 North First St,   San Jose, CA  95112


-Original Message-
From: James Collum james.col...@usa.alcatel.com
To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Friday, December 14, 2001 1:57 PM
Subject: Re: Sometimes product safety just isn't enough


Following a recent airline flight, I was given a bag of peanuts, marked
Peanuts which contained a health warning contains peanuts.
I was thinking that in a similar style that maybe electrical products
could have an added warning may contain electricity.
The may would elude to the connection of a mains cable for mains
powered equipment, or even batteries in battery powered equipment.  I think
the IEC should be prompt to act in this vital area.
Following this illogical train of thought, the swimming pool should have
a warning contains water and the ladder could have a warning may alter
altitude.
But on a slightly more serious note (but not much) If I am ever present
when someone is about to do something interesting with electricity I always
advise that the person about to do the deed make sure to note who present
will provide the kiss of life when it all goes pear shaped. It tends to
work (although I don't know why, as I think I'm very kissable).


Jim


-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Robert Johnson
Sent: woensdag 12 december 2001 19:28
To: emc-p...@majordomo.ieee.org
Subject: Sometimes product safety just isn't enough

I couldn’t help passing on this reference to a
bit of unforeseeable misuse.?xml:namespace prefix = o ns =
urn:schemas-microsoft-com:office:office /

http://electrical-contractor.net/ubb/Forum4/HTML/48.html
Bob Johnson


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 Jim Bacher: j.bac...@ieee.org

All emc-pstc postings are archived and searchable on the web at:
No longer online until our new server is brought online and the old 
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