Re: [PSES] Glow wire tests

2018-11-27 Thread Scott Xe 
Dear Ted,

Fine, let me further research it.

Regards,

Scott

On Wed, 28 Nov 2018 at 04:56, Ted Eckert  wrote:

> Hello Scott,
>
>
>
> I don’t know the exact basis for the determination of which test is run. I
> know the basics of the glow wire standard, but not the details.
>
>
>
> Regards,
>
> Ted Eckert
>
> Microsoft Corporation
>
>
>
> The opinions expressed are my own and do not necessarily reflect those of
> my employer.
>
>
>
> *From:* Scott Xe 
> *Sent:* Tuesday, November 27, 2018 12:40 AM
> *To:* Ted Eckert 
> *Cc:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* Re: [PSES] Glow wire tests
>
>
>
> Dear Ted,
>
>
>
> Thanks for your useful guidance!  What is the definition of medium and
> higher energies?  I notice the safety standard determines the test voltage
> using the spacing between electrical conductors and plastic.  Is there any
> relationship in between?
>
>
>
> Regards,
>
>
>
> Scott
>
>
>
> On Thu, 22 Nov 2018 at 02:01, Ted Eckert  wrote:
>
> Hello Scott,
>
>
>
> There are two different approaches to testing materials for flammability
> ratings. UL 94 determines what happens when plastics are ignited. It
> determines how material burn and whether they self- extinguish. These tests
> are based on the assumption that the material will ignite and then see how
> the material burns. The tests look at the rate of flame spread, dripping
> particles and other factors.
>
>
>
> The glow wire test takes a different approach. It determines how easy or
> hard it is to ignite a material in the first place. A material may burn
> easily, but if it’s extremely hard to ignite, the rate at which it burns
> might not be an issue. Magnesium is used as a light-weight material for IT
> products, engine blocks and high-performance automobile wheels. Once it is
> ignited, it burns rapidly and releases a lot of energy. However, it’s very
> hard to ignite solid metallic magnesium in the first place.
>
>
>
> In summary, some standards are concerned with whether or not a material
> ignites easily and then don’t test how well they burn after they are
> ignited. Materials that don’t ignite easily are accepted. Other standards
> only test how materials burn. If materials don’t burn quickly and resist
> flame spread, the standard doesn’t test how easily they ignite. They
> address the same problem through different approaches.
>
>
>
> The different temperatures for glow wire tests represent different
> ignition sources. One is a medium energy source and the other a higher
> energy source. Materials that resist the higher temperature are considered
> harder to ignite.
>
>
>
> Ted Eckert
>
> Microsoft Corporation
>
>
>
> The opinions expressed are my own and do not necessarily reflect those of
> my employer.
>
>
>
> *From:* Scott Xe 
> *Sent:* Wednesday, November 21, 2018 8:54 AM
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* [PSES] Glow wire tests
>
>
>
> I notice in safety test standards that the plastic enclosure is required
> to pass glow wire test.  What does this test for?  There are commonly two
> conditions: 550 or 750 degC.  What are the differences and what does each
> represent its capabilities?  I am new to this requirement and appreciate
> your decent explanation.
>
>
>
> Thanks and regards,
>
>
>
> Scott
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Femc-pstc.html=02%7C01%7CTed.Eckert%40microsoft.com%7C180f07d0939e4f85c5a608d65443fdeb%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636789048340917767=SEQfXeUXk6%2F2cSYjv1FS6if8gRJEgP%2BWfPr3PVxIq7g%3D=0>
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fproduct-compliance.oc.ieee.org%2F=02%7C01%7CTed.Eckert%40microsoft.com%7C180f07d0939e4f85c5a608d65443fdeb%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636789048340927779=gugQ%2FifQzYm%2FV97rSDBbxaQ%2BvH%2Fr3EnlXggxDXsvYGA%3D=0>
> can be used for graphics (in well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2F=02%7C01%7CTed.Eckert%40microsoft.com%7C1

Re: [PSES] Glow wire tests

2018-11-27 Thread Scott Xe 
Dear Rich,

Fine, let me to further research it.

Best regards,

Scott


On Wed, 28 Nov 2018 at 03:55, Richard Nute  wrote:

>
>
> Hi Scott:
>
>
>
> Sorry, but I don’t know the criteria for selecting the glow-wire
> temperature.
>
>
>
> Best wishes for the holiday season,
>
> Rich
>
>
>
>
>
> *From:* Scott Xe 
> *Sent:* Tuesday, November 27, 2018 1:04 AM
> *To:* ri...@ieee.org
> *Cc:* EMC-PSTC@listserv.ieee.org
> *Subject:* Re: [PSES] Glow wire tests
>
>
>
> Dear Rich,
>
>
>
> Thanks for interesting videos that demonstrate the test made.  In the PTEC
> report, what is different achievement for clause 6.1 (500 - 775 degC and
> 6.2 (750 - 800 degC)?
>
>
>
> Regards,
>
>
>
> Scott
>
>
>

-

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Re: [PSES] Glow wire tests

2018-11-27 Thread Ted Eckert 
Hello Scott,

I don’t know the exact basis for the determination of which test is run. I know 
the basics of the glow wire standard, but not the details.

Regards,
Ted Eckert
Microsoft Corporation

The opinions expressed are my own and do not necessarily reflect those of my 
employer.

From: Scott Xe 
Sent: Tuesday, November 27, 2018 12:40 AM
To: Ted Eckert 
Cc: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Glow wire tests

Dear Ted,

Thanks for your useful guidance!  What is the definition of medium and higher 
energies?  I notice the safety standard determines the test voltage using the 
spacing between electrical conductors and plastic.  Is there any relationship 
in between?

Regards,

Scott

On Thu, 22 Nov 2018 at 02:01, Ted Eckert 
mailto:ted.eck...@microsoft.com>> wrote:
Hello Scott,

There are two different approaches to testing materials for flammability 
ratings. UL 94 determines what happens when plastics are ignited. It determines 
how material burn and whether they self- extinguish. These tests are based on 
the assumption that the material will ignite and then see how the material 
burns. The tests look at the rate of flame spread, dripping particles and other 
factors.

The glow wire test takes a different approach. It determines how easy or hard 
it is to ignite a material in the first place. A material may burn easily, but 
if it’s extremely hard to ignite, the rate at which it burns might not be an 
issue. Magnesium is used as a light-weight material for IT products, engine 
blocks and high-performance automobile wheels. Once it is ignited, it burns 
rapidly and releases a lot of energy. However, it’s very hard to ignite solid 
metallic magnesium in the first place.

In summary, some standards are concerned with whether or not a material ignites 
easily and then don’t test how well they burn after they are ignited. Materials 
that don’t ignite easily are accepted. Other standards only test how materials 
burn. If materials don’t burn quickly and resist flame spread, the standard 
doesn’t test how easily they ignite. They address the same problem through 
different approaches.

The different temperatures for glow wire tests represent different ignition 
sources. One is a medium energy source and the other a higher energy source. 
Materials that resist the higher temperature are considered harder to ignite.

Ted Eckert
Microsoft Corporation

The opinions expressed are my own and do not necessarily reflect those of my 
employer.

From: Scott Xe mailto:scott...@gmail.com>>
Sent: Wednesday, November 21, 2018 8:54 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG>
Subject: [PSES] Glow wire tests

I notice in safety test standards that the plastic enclosure is required to 
pass glow wire test.  What does this test for?  There are commonly two 
conditions: 550 or 750 degC.  What are the differences and what does each 
represent its capabilities?  I am new to this requirement and appreciate your 
decent explanation.

Thanks and regards,

Scott
-


This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 
mailto:emc-p...@ieee.org>>

All emc-pstc postings are archived and searchable on the web at: 
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Attachments are not permitted but the IEEE PSES Online Communities site at 
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 can be used for graphics (in well-used formats), large files, etc.

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Re: [PSES] Glow wire tests

2018-11-27 Thread Richard Nute 
 

Hi Scott:

 

Sorry, but I don’t know the criteria for selecting the glow-wire temperature.  

 

Best wishes for the holiday season,

Rich

 

 

From: Scott Xe  
Sent: Tuesday, November 27, 2018 1:04 AM
To: ri...@ieee.org
Cc: EMC-PSTC@listserv.ieee.org
Subject: Re: [PSES] Glow wire tests

 

Dear Rich,

 

Thanks for interesting videos that demonstrate the test made.  In the PTEC 
report, what is different achievement for clause 6.1 (500 - 775 degC and 6.2 
(750 - 800 degC)?

 

Regards,

 

Scott

 


-

This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 


All emc-pstc postings are archived and searchable on the web at:
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Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
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Mike Cantwell 

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Jim Bacher:  
David Heald:

Re: [PSES] Glow wire tests

2018-11-27 Thread Scott Xe 
Dear Rich,

Thanks for interesting videos that demonstrate the test made.  In the PTEC
report, what is different achievement for clause 6.1 (500 - 775 degC and
6.2 (750 - 800 degC)?

Regards,

Scott

On Thu, 22 Nov 2018 at 04:44, Richard Nute  wrote:

>
>
> Hi John:
>
>
>
> Now that we have attachments, here it is.  (I wasn’t aware that I
> downloaded it!)
>
>
>
> Best wishes for the holiday season,
>
> Rich
>
>
>
> *From:* John Woodgate 
> *Sent:* Wednesday, November 21, 2018 11:56 AM
> *To:* ri...@ieee.org; EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* Re: [PSES] Glow wire tests
>
>
>
> Hi, Rich. Would you please fix the fifth URL in you list, as we don't have
> access to your computer ;-)
>
> John Woodgate OOO-Own Opinions Only
>
> J M Woodgate and Associates www.woodjohn.uk
>
> Rayleigh, Essex UK
>
> On 2018-11-21 19:33, Richard Nute wrote:
>
>
>
> Hi Scott:
>
>
>
> There are some good You-Tube videos of the glow-wire test:
>
>
>
> https://www.youtube.com/watch?v=UiLdLYj1riM
>
> https://www.youtube.com/watch?v=sLCWaDIj1OU
>
>
>
>
> https://www.ulttc.com/en/solutions/test-methods/combustion-fire/electrical-ignition-source/gwit-en.html
> (animation)
>
>
>
> Discussion of the glow-wire test is:
>
>
>
> https://www.flameretardants-online.com/news/archive?showid=17892
>
>
>
>
> file:///C:/Users/richn/Downloads/Brandschutztechnische_Pruefverfahren_en-.pdf
>
>
>
> http://www.glow-wire-testing.com/60695-2-10/
>
>
>
>
> http://mminswall.com/wp-content/uploads/2014/01/01-Growing-Test-Fire-Hazard-Testing-Eng.pdf
>
>
>
> These should explain the glow-wire test.  Enjoy!
>
>
>
> Happy holidays, and best regards,
>
> Rich
>
>
>
>
>
>
>
>
>
> *From:* Scott Xe  
> *Sent:* Wednesday, November 21, 2018 8:54 AM
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* [PSES] Glow wire tests
>
>
>
> I notice in safety test standards that the plastic enclosure is required
> to pass glow wire test.  What does this test for?  There are commonly two
> conditions: 550 or 750 degC.  What are the differences and what does each
> represent its capabilities?  I am new to this requirement and appreciate
> your decent explanation.
>
>
>
> Thanks and regards,
>
>
>
> Scott
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/ can be used for graphics (in
> well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> Instructions: http://www.ieee-pses.org/list.html (including how to
> unsubscribe) <http://www.ieee-pses.org/list.html>
> List rules: http://www.ieee-pses.org/listrules.html
>
> For help, send mail to the list administrators:
> Scott Douglas 
> Mike Cantwell 
>
> For policy questions, send mail to:
> Jim Bacher 
> David Heald 
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/ can be used for graphics (in
> well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> Instructions: http://www.ieee-pses.org/list.html (including how to
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>
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> Scott Douglas 
> Mike Cantwell 
>
> For policy questions, send mail to:
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> David Heald 
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> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to 
> emc-p...@ieee.org
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Attachments are not permitted but the IEEE PSES Online

Re: [PSES] Glow wire tests

2018-11-27 Thread Scott Xe 
Dear Ted,

Thanks for your useful guidance!  What is the definition of medium and
higher energies?  I notice the safety standard determines the test voltage
using the spacing between electrical conductors and plastic.  Is there any
relationship in between?

Regards,

Scott

On Thu, 22 Nov 2018 at 02:01, Ted Eckert  wrote:

> Hello Scott,
>
>
>
> There are two different approaches to testing materials for flammability
> ratings. UL 94 determines what happens when plastics are ignited. It
> determines how material burn and whether they self- extinguish. These tests
> are based on the assumption that the material will ignite and then see how
> the material burns. The tests look at the rate of flame spread, dripping
> particles and other factors.
>
>
>
> The glow wire test takes a different approach. It determines how easy or
> hard it is to ignite a material in the first place. A material may burn
> easily, but if it’s extremely hard to ignite, the rate at which it burns
> might not be an issue. Magnesium is used as a light-weight material for IT
> products, engine blocks and high-performance automobile wheels. Once it is
> ignited, it burns rapidly and releases a lot of energy. However, it’s very
> hard to ignite solid metallic magnesium in the first place.
>
>
>
> In summary, some standards are concerned with whether or not a material
> ignites easily and then don’t test how well they burn after they are
> ignited. Materials that don’t ignite easily are accepted. Other standards
> only test how materials burn. If materials don’t burn quickly and resist
> flame spread, the standard doesn’t test how easily they ignite. They
> address the same problem through different approaches.
>
>
>
> The different temperatures for glow wire tests represent different
> ignition sources. One is a medium energy source and the other a higher
> energy source. Materials that resist the higher temperature are considered
> harder to ignite.
>
>
>
> Ted Eckert
>
> Microsoft Corporation
>
>
>
> The opinions expressed are my own and do not necessarily reflect those of
> my employer.
>
>
>
> *From:* Scott Xe 
> *Sent:* Wednesday, November 21, 2018 8:54 AM
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* [PSES] Glow wire tests
>
>
>
> I notice in safety test standards that the plastic enclosure is required
> to pass glow wire test.  What does this test for?  There are commonly two
> conditions: 550 or 750 degC.  What are the differences and what does each
> represent its capabilities?  I am new to this requirement and appreciate
> your decent explanation.
>
>
>
> Thanks and regards,
>
>
>
> Scott
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
> 
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/
> 
> can be used for graphics (in well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> 
> Instructions: http://www.ieee-pses.org/list.html (including how to
> unsubscribe)
> 
> List rules: http://www.ieee-pses.org/listrules.html
> 
>
> For help, send mail to the list administrators:
> Scott Douglas 
> Mike Cantwell 
>
> For policy questions, send mail to:
> Jim Bacher 
> David Heald 
>

-

This

Re: [PSES] Glow wire tests

2018-11-21 Thread John Woodgate 
We used to have an extension beyond the '12 days of Christmas'. Work in 
the fields didn't start until the Monday after January 6, called 'Plough 
Monday', but the usual job was 'hedging and ditching', not very pleasant 
if the weather was cold and wet. Fiscal calendars occasionally start on 
that day.


John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK

On 2018-11-21 21:24, Richard Nute wrote:


Hi John and all subscribers outside the USA:

In the USA, the Holiday Season starts with the fourth Thursday in 
November (our Thanksgiving holiday) and continues through to the New 
Year holiday.  Traditionally, Christmas decorations go up in the days 
following Thanksgiving, although this year I’ve seen a number of 
decorations already up.  In our house, the season continues to January 
 6^th , Three Kings Day, which most Americans are unaware of and we 
became aware of when we lived in Spain.


Best wishes to all for the holiday season,

Rich

https://www.npr.org/sections/thetwo-way/2012/11/21/165655925/how-did-thanksgiving-end-up-on-thursday

*From:* John Woodgate 
*Sent:* Wednesday, November 21, 2018 12:57 PM
*To:* ri...@ieee.org; EMC-PSTC@LISTSERV.IEEE.ORG
*Subject:* Re: [PSES] Glow wire tests

Thanks very much, and for your good wishes, which I reciprocate. We 
have adopted (actually revived) Hallowe'en through American influence 
but we have not (yet?) adopted Thanksgiving. In any case, consultants 
don't have holidays.


John Woodgate OOO-Own Opinions Only
J M Woodgate and Associateswww.woodjohn.uk  <http://www.woodjohn.uk>
Rayleigh, Essex UK

On 2018-11-21 20:44, Richard Nute wrote:

Hi John:

Now that we have attachments, here it is.  (I wasn’t aware that I
downloaded it!)

Best wishes for the holiday season,

Rich



-

This message is from the IEEE Product Safety Engineering Society emc-pstc discussion 
list. To post a message to the list, send your e-mail to 

All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

Website:  http://www.ieee-pses.org/
Instructions:  http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas 
Mike Cantwell 

For policy questions, send mail to:
Jim Bacher:  
David Heald:

Re: [PSES] Glow wire tests

2018-11-21 Thread Richard Nute 
Hi John and all subscribers outside the USA:

 

In the USA, the Holiday Season starts with the fourth Thursday in November (our 
Thanksgiving holiday) and continues through to the New Year holiday.  
Traditionally, Christmas decorations go up in the days following Thanksgiving, 
although this year I’ve seen a number of decorations already up.  In our house, 
the season continues to January  6th, Three Kings Day, which most Americans are 
unaware of and we became aware of when we lived in Spain.

 

Best wishes to all for the holiday season,

Rich

 

https://www.npr.org/sections/thetwo-way/2012/11/21/165655925/how-did-thanksgiving-end-up-on-thursday

 

 

From: John Woodgate  
Sent: Wednesday, November 21, 2018 12:57 PM
To: ri...@ieee.org; EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Glow wire tests

 

Thanks very much, and for your good wishes, which I reciprocate. We have 
adopted (actually revived) Hallowe'en through American influence but we have 
not (yet?) adopted Thanksgiving. In any case, consultants don't have holidays.

John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk <http://www.woodjohn.uk> 
Rayleigh, Essex UK

On 2018-11-21 20:44, Richard Nute wrote:

 

Hi John:  

 

Now that we have attachments, here it is.  (I wasn’t aware that I downloaded 
it!)

 

Best wishes for the holiday season,

Rich

 

 


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Re: [PSES] Glow wire tests

2018-11-21 Thread John Woodgate 
Thanks very much, and for your good wishes, which I reciprocate. We have 
adopted (actually revived) Hallowe'en through American influence but we 
have not (yet?) adopted Thanksgiving. In any case, consultants don't 
have holidays.


John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK

On 2018-11-21 20:44, Richard Nute wrote:


Hi John:

Now that we have attachments, here it is.  (I wasn’t aware that I 
downloaded it!)


Best wishes for the holiday season,

Rich




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Re: [PSES] Glow wire tests

2018-11-21 Thread Ted Eckert 
Hello Scott,

There are two different approaches to testing materials for flammability 
ratings. UL 94 determines what happens when plastics are ignited. It determines 
how material burn and whether they self- extinguish. These tests are based on 
the assumption that the material will ignite and then see how the material 
burns. The tests look at the rate of flame spread, dripping particles and other 
factors.

The glow wire test takes a different approach. It determines how easy or hard 
it is to ignite a material in the first place. A material may burn easily, but 
if it’s extremely hard to ignite, the rate at which it burns might not be an 
issue. Magnesium is used as a light-weight material for IT products, engine 
blocks and high-performance automobile wheels. Once it is ignited, it burns 
rapidly and releases a lot of energy. However, it’s very hard to ignite solid 
metallic magnesium in the first place.

In summary, some standards are concerned with whether or not a material ignites 
easily and then don’t test how well they burn after they are ignited. Materials 
that don’t ignite easily are accepted. Other standards only test how materials 
burn. If materials don’t burn quickly and resist flame spread, the standard 
doesn’t test how easily they ignite. They address the same problem through 
different approaches.

The different temperatures for glow wire tests represent different ignition 
sources. One is a medium energy source and the other a higher energy source. 
Materials that resist the higher temperature are considered harder to ignite.

Ted Eckert
Microsoft Corporation

The opinions expressed are my own and do not necessarily reflect those of my 
employer.

From: Scott Xe 
Sent: Wednesday, November 21, 2018 8:54 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Glow wire tests

I notice in safety test standards that the plastic enclosure is required to 
pass glow wire test.  What does this test for?  There are commonly two 
conditions: 550 or 750 degC.  What are the differences and what does each 
represent its capabilities?  I am new to this requirement and appreciate your 
decent explanation.

Thanks and regards,

Scott
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Re: [PSES] Glow wire tests

2018-11-21 Thread John Woodgate 
Hi, Rich. Would you please fix the fifth URL in you list, as we don't 
have access to your computer ;-)


John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK

On 2018-11-21 19:33, Richard Nute wrote:


Hi Scott:

There are some good You-Tube videos of the glow-wire test:

https://www.youtube.com/watch?v=UiLdLYj1riM

https://www.youtube.com/watch?v=sLCWaDIj1OU

https://www.ulttc.com/en/solutions/test-methods/combustion-fire/electrical-ignition-source/gwit-en.html 
(animation)


Discussion of the glow-wire test is:

https://www.flameretardants-online.com/news/archive?showid=17892

file:///C:/Users/richn/Downloads/Brandschutztechnische_Pruefverfahren_en-.pdf

http://www.glow-wire-testing.com/60695-2-10/

http://mminswall.com/wp-content/uploads/2014/01/01-Growing-Test-Fire-Hazard-Testing-Eng.pdf

These should explain the glow-wire test. Enjoy!

Happy holidays, and best regards,

Rich

*From:* Scott Xe 
*Sent:* Wednesday, November 21, 2018 8:54 AM
*To:* EMC-PSTC@LISTSERV.IEEE.ORG
*Subject:* [PSES] Glow wire tests

I notice in safety test standards that the plastic enclosure is 
required to pass glow wire test. What does this test for?  There are 
commonly two conditions: 550 or 750 degC.  What are the differences 
and what does each represent its capabilities?  I am new to this 
requirement and appreciate your decent explanation.


Thanks and regards,

Scott

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Re: [PSES] Glow wire tests

2018-11-21 Thread Richard Nute 
 

Hi Scott:

 

There are some good You-Tube videos of the glow-wire test:  

 

https://www.youtube.com/watch?v=UiLdLYj1riM

https://www.youtube.com/watch?v=sLCWaDIj1OU

 

https://www.ulttc.com/en/solutions/test-methods/combustion-fire/electrical-ignition-source/gwit-en.html
  (animation)

 

Discussion of the glow-wire test is:

 

https://www.flameretardants-online.com/news/archive?showid=17892

 

file:///C:/Users/richn/Downloads/Brandschutztechnische_Pruefverfahren_en-.pdf

 

http://www.glow-wire-testing.com/60695-2-10/

 

http://mminswall.com/wp-content/uploads/2014/01/01-Growing-Test-Fire-Hazard-Testing-Eng.pdf

 

These should explain the glow-wire test.  Enjoy!

 

Happy holidays, and best regards,

Rich

 

 

 

 

From: Scott Xe  
Sent: Wednesday, November 21, 2018 8:54 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Glow wire tests

 

I notice in safety test standards that the plastic enclosure is required to 
pass glow wire test.  What does this test for?  There are commonly two 
conditions: 550 or 750 degC.  What are the differences and what does each 
represent its capabilities?  I am new to this requirement and appreciate your 
decent explanation.

 

Thanks and regards,

 

Scott

-


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