Arcing Sparking
Fellow Listers, Many thanks to all those that responded to my query on arcing and sparking. I now have a much better appreciation of the difference. All of your answers will be passed to the original design review team from whence the query came. Cheers Jim __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel:+44(0)1293 644911 * Mob:+44(0)7968 529439 * Fax : +44(0)1293 644194 *e-mail jim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You should not use, disclose, distribute or copy this communication if received in error. 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Arcing Sparking
An arc is more than just a plasma discharge. An arc is when the current
density is quite high and the gas goes from abnormal glow discharge into the
arc region.
Dave Cuthbert
From: John Woodgate [mailto:j...@jmwa.demon.co.uk]
Sent: Monday, September 22, 2003 1:33 PM
To: emc-p...@majordomo.ieee.org
Subject: Re: Arcing Sparking
I read in !emc-pstc that Peter L. Tarver peter.tar...@sanmina-sci.com
wrote (in nebbkemlgllmjofmopleoehhelaa.peter.tar...@sanmina-sci.com)
about 'Arcing Sparking' on Mon, 22 Sep 2003:
I have always related arcing to having end-points: having at least two
electrodes and involving electrical conduction.
Arc \Arc\ ([aum]rk), v. i. [imp. p. p. {Arcked} ([aum]rkt); p. pr.
vb. n. {Arcking}.] (Elec.) To form a voltaic arc, as an electrical
current in a broken or disconnected circuit.
Sparking, I have always related to high temperature ejecta which may or
may not be related to electrical conduction.
Spark \Spark\, v. i. (Elec.) To produce, or give off, sparks, as a
dynamo at the commutator when revolving under the collecting brushes.
Spark \Spark\, n. [OE. sparke, AS. spearca; akin to D. spark, sperk; cf.
Icel. spraka to crackle, Lith. sprag[e]ti, Gr. ? a bursting with a
noise, Skr. sph?rj to crackle, to thunder. Cf. {Speak}.] 1. A small
particle of fire or ignited substance which is emitted by a body in
combustion.
Yes. An arc that persists is a 'sustained arc'. It needs a control
mechanism to sustain it.
When the spark speaks, the arc harks.(;-)
--
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
Interested in professional sound reinforcement and distribution? Then go to
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!
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 subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: emc_p...@symbol.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
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 subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: emc_p...@symbol.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
RE: Arcing Sparking
-Original Message- From: Ralph McDiarmid [ mailto:ralph.mcdiar...@xantrex.com] Sent: Monday, September 22, 2003 11:12 AM To: emc-p...@majordomo.ieee.org Subject: RE: Arcing Sparking I suggest that an arc is something continuous and producing light or illumination. A spark is something abrupt and short lived. Ralph McDiarmid, AScT Compliance Engineering Group Xantrex Technology Inc. I think that the main difference between an electrical arc and an electrical spark is the sense of time. An Arc is a Spark that decided to park. Ed Ed Price ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Technician Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Is Our Specialty
Re: Arcing Sparking
I read in !emc-pstc that Peter L. Tarver peter.tar...@sanmina-sci.com
wrote (in nebbkemlgllmjofmopleoehhelaa.peter.tar...@sanmina-sci.com)
about 'Arcing Sparking' on Mon, 22 Sep 2003:
I have always related arcing to having end-points: having at least two
electrodes and involving electrical conduction.
Arc \Arc\ ([aum]rk), v. i. [imp. p. p. {Arcked} ([aum]rkt); p. pr.
vb. n. {Arcking}.] (Elec.) To form a voltaic arc, as an electrical
current in a broken or disconnected circuit.
Sparking, I have always related to high temperature ejecta which may or
may not be related to electrical conduction.
Spark \Spark\, v. i. (Elec.) To produce, or give off, sparks, as a
dynamo at the commutator when revolving under the collecting brushes.
Spark \Spark\, n. [OE. sparke, AS. spearca; akin to D. spark, sperk; cf.
Icel. spraka to crackle, Lith. sprag[e]ti, Gr. ? a bursting with a
noise, Skr. sph?rj to crackle, to thunder. Cf. {Speak}.] 1. A small
particle of fire or ignited substance which is emitted by a body in
combustion.
Yes. An arc that persists is a 'sustained arc'. It needs a control
mechanism to sustain it.
When the spark speaks, the arc harks.(;-)
--
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
Interested in professional sound reinforcement and distribution? Then go to
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!
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 subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: emc_p...@symbol.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
RE: Arcing Sparking
My understanding is that a spark is the result of an electric discharge through ionized air. An arc actually contains vaporized metal from the contacts and has phenomena like flash and blast that are not associated with sparks. Best regards, Brian Epstein Sr Regulatory Compliance Engineer Veeco Instruments 112 Robin Hill Rd Santa Barbara CA 93117 805-967-2700 x2315 brian.epst...@veeco.com mailto:brian.epst...@veeco.com From: Speakman, Jim [mailto:jim.speak...@uk.thalesgroup.com] Sent: Monday, September 22, 2003 8:32 AM To: emc-p...@majordomo.ieee.org Subject: Arcing Sparking Fellow Listers At a recent equipment design review, a discussion on arcing and sparking indicated a lack of definitive knowledge of the difference between an 'arc' and a 'spark'. Is an 'arc', basically just a long 'spark'. If so, at what point (precisely) does a 'spark' become an 'arc'? Have I got it all wrong? Are they 'something else'. Can anyone enlighten my darkness? __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel:+44(0)1293 644911 * Mob:+44(0)7968 529439 * Fax : +44(0)1293 644194 *e-mail jim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You should not use, disclose, distribute or copy this communication if received in error. 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Arcing Sparking
Essentially, an arc is sustainable and a spark is not. A spark is the onset of an arc. Whether it becomes sustainable or not, has to do with the supply of charges and electric field potential. An arc, once formed, becomes very low in resistance and impedance akin to a metal conductor. The forming process of an arc includes a transition phase where in the formative phase, the dendrite type corona discharges begin to colapse into a single channel due to the collective magnetic fields. This self-induced magnetic field is large enough to contain it from expanding radially. Hans Mellberg Engineering Manager BACL 230 Commercial Street Sunnyvale CA 94085 USA 408-732-9162 x38 408-732-9164 fax - Original Message - From: Speakman, Jim jim.speak...@uk.thalesgroup.com To: emc-p...@majordomo.ieee.org Sent: Monday, September 22, 2003 8:32 AM Subject: Arcing Sparking Fellow Listers At a recent equipment design review, a discussion on arcing and sparking indicated a lack of definitive knowledge of the difference between an 'arc' and a 'spark'. Is an 'arc', basically just a long 'spark'. If so, at what point (precisely) does a 'spark' become an 'arc'? Have I got it all wrong? Are they 'something else'. Can anyone enlighten my darkness? __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel: +44(0)1293 644911 * Mob: +44(0)7968 529439 * Fax : +44(0)1293 644194 *e-mail jim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You should not use, disclose, distribute or copy this communication if received in error. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Arcing Sparking
I suggest that an arc is something continuous and producing light or illumination. A spark is something abrupt and short lived. Ralph McDiarmid, AScT Compliance Engineering Group Xantrex Technology Inc. From: Speakman, Jim [mailto:jim.speak...@uk.thalesgroup.com] Sent: September 22, 2003 8:32 AM To: emc-p...@majordomo.ieee.org Subject: Arcing Sparking Fellow Listers At a recent equipment design review, a discussion on arcing and sparking indicated a lack of definitive knowledge of the difference between an 'arc' and a 'spark'. Is an 'arc', basically just a long 'spark'. If so, at what point (precisely) does a 'spark' become an 'arc'? Have I got it all wrong? Are they 'something else'. Can anyone enlighten my darkness? __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel:+44(0)1293 644911 * Mob:+44(0)7968 529439 * Fax : +44(0)1293 644194 *e-mail jim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You +should not use, disclose, distribute or copy this communication if received in error. 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Arcing Sparking
I have always related arcing to having end-points: having at
least two electrodes and involving electrical conduction.
Arc \Arc\ ([aum]rk), v. i. [imp. p. p. {Arcked}
([aum]rkt); p. pr. vb. n. {Arcking}.] (Elec.) To form a
voltaic arc, as an electrical current in a broken or
disconnected circuit.
Sparking, I have always related to high temperature ejecta
which may or may not be related to electrical conduction.
Spark \Spark\, v. i. (Elec.) To produce, or give off,
sparks, as a dynamo at the commutator when revolving under
the collecting brushes.
Spark \Spark\, n. [OE. sparke, AS. spearca; akin to D.
spark, sperk; cf. Icel. spraka to crackle, Lith.
sprag[e]ti, Gr. ? a bursting with a noise, Skr. sph?rj to
crackle, to thunder. Cf. {Speak}.] 1. A small particle of
fire or ignited substance which is emitted by a body in
combustion.
Regards,
Peter L. Tarver, PE
Product Safety Manager
Homologation Services
Sanmina-SCI Corp.
San Jose, CA
peter.tar...@sanmina-sci.com
From: Fred Townsend
Sent: Monday, September 22, 2003 9:09 AM
I have never seen a really definitive statement
about arcs and sparks however I
tend to think of sparks as transient ( as in
spark plugs) and arcs as sustained
(as in arc lamps). Does that make sense?
Fred Townsend
Speakman, Jim wrote:
At a recent equipment design review, a
discussion on arcing and sparking
indicated a lack of definitive knowledge of the
difference between an 'arc'
and a 'spark'.
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 subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: emc_p...@symbol.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
Re: Arcing Sparking
This is totally my interpretation, not meant to be be authoritative. To me a spark is an incandescent piece of matter, which can be incandescent for any number of reasons, including but hardly limited to electrical - I have a curtain in front of my fireplace to keep sparks from flying out and igniting the rug. But an arc is struck between two points of different electrical potential, when the gradient is sufficient to strip electrons off atoms between the two points and sufficient current flows to cause incandescence. From: Speakman, Jim jim.speak...@uk.thalesgroup.com Reply-To: Speakman, Jim jim.speak...@uk.thalesgroup.com Date: Mon, 22 Sep 2003 16:32:09 +0100 To: emc-p...@majordomo.ieee.org Subject: Arcing Sparking Fellow Listers At a recent equipment design review, a discussion on arcing and sparking indicated a lack of definitive knowledge of the difference between an 'arc' and a 'spark'. Is an 'arc', basically just a long 'spark'. If so, at what point (precisely) does a 'spark' become an 'arc'? Have I got it all wrong? Are they 'something else'. Can anyone enlighten my darkness? __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel:+44(0)1293 644911 * Mob:+44(0)7968 529439 * Fax :+44(0)1293 644194 *e-mailjim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You should not use, disclose, distribute or copy this communication if received in error. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Arcing Sparking
I have never seen a really definitive statement about arcs and sparks however I tend to think of sparks as transient ( as in spark plugs) and arcs as sustained (as in arc lamps). Does that make sense? Fred Townsend Speakman, Jim wrote: Fellow Listers At a recent equipment design review, a discussion on arcing and sparking indicated a lack of definitive knowledge of the difference between an 'arc' and a 'spark'. Is an 'arc', basically just a long 'spark'. If so, at what point (precisely) does a 'spark' become an 'arc'? Have I got it all wrong? Are they 'something else'. Can anyone enlighten my darkness? __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel:+44(0)1293 644911 * Mob:+44(0)7968 529439 * Fax : +44(0)1293 644194 *e-mail jim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You should not use, disclose, distribute or copy this communication if received in error. --- 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Arcing Sparking
Fellow Listers At a recent equipment design review, a discussion on arcing and sparking indicated a lack of definitive knowledge of the difference between an 'arc' and a 'spark'. Is an 'arc', basically just a long 'spark'. If so, at what point (precisely) does a 'spark' become an 'arc'? Have I got it all wrong? Are they 'something else'. Can anyone enlighten my darkness? __ Jim Speakman (Design Safety Representative (Southern Sites) Thales Defence Ltd Thales Sensors Manor Royal Crawley West Sussex RH10 9PZ * Tel:+44(0)1293 644911 * Mob:+44(0)7968 529439 * Fax : +44(0)1293 644194 *e-mail jim.speak...@uk.thalesgroup.com __ This e-mail contains confidential information for the addressee only. If a transmission error has misdirected this e-mail, please notify us on +44(0)1293 644911 and delete it and all copies from your system. You should not use, disclose, distribute or copy this communication if received in error. 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 subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
