RadioBanter

RadioBanter (https://www.radiobanter.com/)
-   CB (https://www.radiobanter.com/cb/)
-   -   Cold/Heat (https://www.radiobanter.com/cb/86013-cold-heat.html)

james January 18th 06 10:53 PM

Cold/Heat
 
On Mon, 16 Jan 2006 13:31:56 GMT, Lancer wrote:

+ Maybe you should read Ansi standard ANSI/ESD-S20-1999. It states
+Soldering Irons should have a tip to ground resistance of less than 1
+ohm. Companies spends tons of money each year to prevent static
+damge, and that icludes insuring that everything is at the same
+potential. Including the operator and all equipment he uses. Thats
+why iron's that are ANSI rated have a third wire, the ground. It
+wasn't put there to prevent the user from being "shocked"

******

maybe you should study Coulomb's and Guass' Law and understand how
Static Charges are developed. A soldering iron sitting on a
anti-static mat plugged into the wall is not going to develope large
electrostatic charge.

What does happen is the tip of a soldering iron is in the strong field
of a time varying magnetic field. This comes from the inductance in
the heater coil. Putting the tip at ground potential will eliminate
any potential charge build up from the time varying magnetic field
from teh heater coil.

Battery operated soldering do not have time varying magnetic fields
near the tip. It will have a static magnetic field that is often far
weaker than that of a soldering iron that operates on 120VAC.

In ESD it is the rapid movement of charge that will do the damage.
Rapid movement of electric charge will result in high current in a
very shor time frame. Ampere's Law. Damage is severe when the change
in charge(Q) versus change in time(T), dQ/dT, is very small. The slow
movement of charge results in low current and therefore damage is
minimalized.

Yes repeated strikes of low level electrostatic charge can be as
damaging as one big strike of electrostatic charge movement.


james

U-Know-Who January 18th 06 11:21 PM

Cold/Heat
 

"james" wrote in message
...
On Mon, 16 Jan 2006 21:26:35 GMT, gwb wrote:

+On Mon, 16 Jan 2006 03:27:51 GMT, james wrote:
+
+On Sat, 14 Jan 2006 18:46:25 GMT, Lancer wrote:
+
++Thats total bull****...What happens if your tip has a 1,000 of
static
++on it? ESD control is supposed to eliminate the difference in
++potential. ANSI ESD standards state that "everything should be at
the
++same potential" That means the operator or person, all test
equipment
++and irons. Why don't you do a search on ANSI ESD standards and find
++out for yourself... You are cluesless about ESD...
+****
+
+IF you are properly grounded, once you grab the handle of the
+soldering iron it will within seconds no longer be at 1000 volts
+potential. Maybe you should also read your Ansi Standards a bit more
+and understand static prevention. Once you are grounded touching any
+other ungrounded object will dissapate the charge built in it. That
+charge will drain through your body to ground within a very short
+period.
+
+Besides most ICs can shrug off 1KV with no damage. It is neat to see
+what a 15KV jolt does to the poly layers and the protective zeners on
+an IC. If you ever get a chance to do some electron scanning of static
+damage to the die pad area of an IC, do so. It is a really neat to see
+what 15KV can do.
+
+james
+
+you evidently have never worked for a large company such as Northern
+Telecom. If you mentioned you understanding of ESD during an
+interview they would laugh you out the door. You are 30 years behind
+in your ESD knowledge.

******
Actually more like four or five years behind. I will admit that I am
not fully abreast on the 1999 ANSI standards.

Son I have worked in enough ESD sensitive areas for the better part of
23 yrs. You and others are very good in quoting standards, but have
really failed to understand what ESD is, how it generates and what is
needed to combat ESD. Various areas of the US is far more suspectable
to ESD than other areas of the US. Cold dry areas are more susceptable
tham humid and warmer areas.


Here in southeast Texas, we have like 7 days every winter when you have to
worry about it. The rest of the time you have to wear a sweatband to keep
the moisture out of your work.



My knowledge of ESD is good enough that I do not have to worry if I
ever decided to work for a large corporation again.

james




Steveo January 18th 06 11:33 PM

Cold/Heat
 
Lancer wrote:
Hey, Wal-mart is hiring... thats a large corporation..


Lancer

I wanna be a greeter' when I'm 75. Gimme' the smock. hehe

Steveo January 18th 06 11:42 PM

Cold/Heat
 
Lancer wrote:
So far we haven't had any winter.. looks like another year with 5 or 6

months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I almost feel
guilty going from cold ass snow to rain over here in the Buckeye. Wish I
could send some of it your way Lance. I seen some of those lawn fires on
the teevee..how close was that **** to you?

Ya' hate to ask for a deluge for fear of flood, but you guys need your
ground soaked just for old times sake by now..

Steveo January 18th 06 11:45 PM

Cold/Heat
 
Lancer wrote:
On 18 Jan 2006 23:33:08 GMT, Steveo wrote:

Lancer wrote:
Hey, Wal-mart is hiring... thats a large corporation..

Lancer

I wanna be a greeter' when I'm 75. Gimme' the smock. hehe


I love the greeters, nicest people in the store...

No doubt, perhaps you could strive to be one once you're old and creaking.

Steveo January 19th 06 12:34 AM

Cold/Heat
 
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with 5 or
6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I almost
feel guilty going from cold ass snow to rain over here in the Buckeye.
Wish I could send some of it your way Lance. I seen some of those lawn
fires on the teevee..how close was that **** to you?


Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a machete'.
You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need your
ground soaked just for old times sake by now..


We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.

Steveo January 19th 06 12:38 AM

Cold/Heat
 
Lancer wrote:
On 18 Jan 2006 23:45:33 GMT, Steveo wrote:

Lancer wrote:
On 18 Jan 2006 23:33:08 GMT, Steveo wrote:

Lancer wrote:
Hey, Wal-mart is hiring... thats a large corporation..

Lancer

I wanna be a greeter' when I'm 75. Gimme' the smock. hehe

I love the greeters, nicest people in the store...

No doubt, perhaps you could strive to be one once you're old and
creaking.


Nah, We have our eyes on a motor home... sell the house and travel..
all we will need is beer money and gas money... :-)

Sweet program. Yore always welcome with free hook-up in Medina, old man.
(ewe new dat)

Gonna bring a couple good pics back from Daytona? Get one of Sterling
Marlin if you get the chance, please. :)

james January 19th 06 03:43 AM

Cold/Heat
 
Lancer

This simple drivel has done nothing but dwindle done to a ****ing
contest and I am put of ****.

I recogneize that there are ANSI standards and I don't disagree with
any of them. I also have years of education and practical experience
with electrrostatics and how it forms and how it discharges. I don't
have to prove anything to a twit like you that can only quote
standards like it is a bible of some sorts.

You are arguing an issue by throwing standards up and I don't care to
argue standards. I made a statement and I still stand by it. All you
have done is through some standards in my face and failed to disprove
my statement.

Until you can prove me wrong in my original statement, I suggest that
any further discourse is a wate of my time and the internet bandwidth.

james


On Wed, 18 Jan 2006 23:21:18 GMT, Lancer wrote:

+On Wed, 18 Jan 2006 22:53:53 GMT, james wrote:
+
+On Mon, 16 Jan 2006 13:31:56 GMT, Lancer wrote:
+
++ Maybe you should read Ansi standard ANSI/ESD-S20-1999. It states
++Soldering Irons should have a tip to ground resistance of less than 1
++ohm. Companies spends tons of money each year to prevent static
++damge, and that icludes insuring that everything is at the same
++potential. Including the operator and all equipment he uses. Thats
++why iron's that are ANSI rated have a third wire, the ground. It
++wasn't put there to prevent the user from being "shocked"
+******
+
+
+
+....Snipped, because ANSI standards were written to take into acoount
+all the drivel you posted.
+
+I understand now james, there is ANSI ESD standards
+and jame ESD standards.
+
+And you think that james ESD standards are more correct, more
+accurate, and more accepted than ANSI.
+
+What other electronic standards have you written so that I can go
+though and replace all of my quality manuals that reference ANSI
+standards and replace them with james standards?
+
+Have a nice day
+
+Lancer
+
+james



james January 19th 06 03:45 AM

Cold/Heat
 
On Wed, 18 Jan 2006 23:27:21 GMT, Lancer wrote:

+Actually more like four or five years behind. I will admit that I am
+not fully abreast on the 1999 ANSI standards.
+
+Think so?
+

*****

I know so! Furthermore I do not have to prove nothing to you!

+
+Son I have worked in enough ESD sensitive areas for the better part of
+23 yrs. You and others are very good in quoting standards, but have
+really failed to understand what ESD is, how it generates and what is
+needed to combat ESD. Various areas of the US is far more suspectable
+to ESD than other areas of the US. Cold dry areas are more susceptable
+tham humid and warmer areas.
+
+No **** sherlock.. guess thats why you get more static shocks in the
+winter time?
+
+
+My knowledge of ESD is good enough that I do not have to worry if I
+ever decided to work for a large corporation again.
+
+james
+
+Hey, Wal-mart is hiring... thats a large corporation..

*******

So is Disney also. Maybe you should work there. You have brought
laughter to this thread.

james



Lancer January 19th 06 08:42 PM

Cold/Heat
 
On Thu, 19 Jan 2006 03:43:14 GMT, james wrote:

Lancer

This simple drivel has done nothing but dwindle done to a ****ing
contest and I am put of ****.

I recogneize that there are ANSI standards and I don't disagree with
any of them. I also have years of education and practical experience
with electrrostatics and how it forms and how it discharges. I don't
have to prove anything to a twit like you that can only quote
standards like it is a bible of some sorts.

You are arguing an issue by throwing standards up and I don't care to
argue standards. I made a statement and I still stand by it. All you
have done is through some standards in my face and failed to disprove
my statement.

Until you can prove me wrong in my original statement, I suggest that
any further discourse is a wate of my time and the internet bandwidth.

james



I already did over a week ago, tips on soldring irons should be
grounded. So quit wasting my time...

Lancer January 19th 06 08:44 PM

Cold/Heat
 
On Thu, 19 Jan 2006 03:45:55 GMT, james wrote:

On Wed, 18 Jan 2006 23:27:21 GMT, Lancer wrote:

+Actually more like four or five years behind. I will admit that I am
+not fully abreast on the 1999 ANSI standards.
+
+Think so?
+

*****

I know so! Furthermore I do not have to prove nothing to you!

+
+Son I have worked in enough ESD sensitive areas for the better part of
+23 yrs. You and others are very good in quoting standards, but have
+really failed to understand what ESD is, how it generates and what is
+needed to combat ESD. Various areas of the US is far more suspectable
+to ESD than other areas of the US. Cold dry areas are more susceptable
+tham humid and warmer areas.
+
+No **** sherlock.. guess thats why you get more static shocks in the
+winter time?
+
+
+My knowledge of ESD is good enough that I do not have to worry if I
+ever decided to work for a large corporation again.
+
+james
+
+Hey, Wal-mart is hiring... thats a large corporation..

*******

So is Disney also. Maybe you should work there. You have brought
laughter to this thread.

james


That was the intent of my last post..We are at an impass. I have my
beliefs, you have yours.. Ok?

Anyway I couldn't work at Disney.. the commute would be a killer..

U-Know-Who January 20th 06 04:38 AM

Cold/Heat
 

"Steveo" wrote in message
...
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with 5 or
6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I almost
feel guilty going from cold ass snow to rain over here in the Buckeye.
Wish I could send some of it your way Lance. I seen some of those lawn
fires on the teevee..how close was that **** to you?


Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a machete'.
You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need your
ground soaked just for old times sake by now..


We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.


Steveo, it's so bad here that the major river (the Brazos) we get our water
from is so salty it leaves white residue on the dishes cleaned in the
dishwasher. They say it will be that way until north Texas gets more rain to
dilute the river water. No telling how much damage it's doing to the hot
water heaters and other devices that this seawater flows through. :-)



U-Know-Who January 20th 06 04:39 AM

Cold/Heat
 

"Lancer" wrote in message
news:37hls1t6112jqfg8r4lv1rqf2v8l89mf4o@2355323778 ...
On 18 Jan 2006 23:33:08 GMT, Steveo wrote:

Lancer wrote:
Hey, Wal-mart is hiring... thats a large corporation..

Lancer

I wanna be a greeter' when I'm 75. Gimme' the smock. hehe


I love the greeters, nicest people in the store...


Yeah, but the big foreheads kinda creep me out.



Steveo January 20th 06 12:10 PM

Cold/Heat
 
"U-Know-Who" wrote:
"Steveo" wrote in message
...
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with 5
or 6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I
almost feel guilty going from cold ass snow to rain over here in the
Buckeye. Wish I could send some of it your way Lance. I seen some of
those lawn fires on the teevee..how close was that **** to you?

Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a
machete'. You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need
your ground soaked just for old times sake by now..

We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.


Steveo, it's so bad here that the major river (the Brazos) we get our
water from is so salty it leaves white residue on the dishes cleaned in
the dishwasher. They say it will be that way until north Texas gets more
rain to dilute the river water. No telling how much damage it's doing to
the hot water heaters and other devices that this seawater flows through.
:-)

Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?

Steveo January 20th 06 12:11 PM

Cold/Heat
 
"U-Know-Who" wrote:
"Lancer" wrote in message
news:37hls1t6112jqfg8r4lv1rqf2v8l89mf4o@2355323778 ...
On 18 Jan 2006 23:33:08 GMT, Steveo wrote:

Lancer wrote:
Hey, Wal-mart is hiring... thats a large corporation..

Lancer

I wanna be a greeter' when I'm 75. Gimme' the smock. hehe


I love the greeters, nicest people in the store...


Yeah, but the big foreheads kinda creep me out.

D'OH!

U-Know-Who January 20th 06 12:38 PM

Cold/Heat
 

"Steveo" wrote in message
...
"U-Know-Who" wrote:
"Steveo" wrote in message
...
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with 5
or 6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I
almost feel guilty going from cold ass snow to rain over here in the
Buckeye. Wish I could send some of it your way Lance. I seen some of
those lawn fires on the teevee..how close was that **** to you?

Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a
machete'. You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need
your ground soaked just for old times sake by now..

We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.


Steveo, it's so bad here that the major river (the Brazos) we get our
water from is so salty it leaves white residue on the dishes cleaned in
the dishwasher. They say it will be that way until north Texas gets more
rain to dilute the river water. No telling how much damage it's doing to
the hot water heaters and other devices that this seawater flows through.
:-)

Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?


Oh hell yes! Tap water tastes like pond water right now!



Lancer January 20th 06 04:16 PM

Cold/Heat
 
On 20 Jan 2006 12:10:38 GMT, Steveo wrote:

"U-Know-Who" wrote:
"Steveo" wrote in message
...
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with 5
or 6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I
almost feel guilty going from cold ass snow to rain over here in the
Buckeye. Wish I could send some of it your way Lance. I seen some of
those lawn fires on the teevee..how close was that **** to you?

Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a
machete'. You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need
your ground soaked just for old times sake by now..

We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.


Steveo, it's so bad here that the major river (the Brazos) we get our
water from is so salty it leaves white residue on the dishes cleaned in
the dishwasher. They say it will be that way until north Texas gets more
rain to dilute the river water. No telling how much damage it's doing to
the hot water heaters and other devices that this seawater flows through.
:-)

Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?


I have well water, and I still won't drink it. All our drinking water
is bottled.

Steveo January 20th 06 05:22 PM

Cold/Heat
 
"U-Know-Who" wrote:
"Steveo" wrote in message
Steveo, it's so bad here that the major river (the Brazos) we get our
water from is so salty it leaves white residue on the dishes cleaned
in the dishwasher. They say it will be that way until north Texas gets
more rain to dilute the river water. No telling how much damage it's
doing to the hot water heaters and other devices that this seawater
flows through.
:-)

Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?


Oh hell yes! Tap water tastes like pond water right now!

How deep to they drill shallow wells down there? Can you do that where you
are at or no?

Steveo January 20th 06 09:50 PM

Cold/Heat in Teaxas
 
Lancer wrote:
On 20 Jan 2006 12:10:38 GMT, Steveo wrote:

"U-Know-Who" wrote:
"Steveo" wrote in message
...
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with
5 or 6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I
almost feel guilty going from cold ass snow to rain over here in
the Buckeye. Wish I could send some of it your way Lance. I seen
some of those lawn fires on the teevee..how close was that **** to
you?

Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a
machete'. You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need
your ground soaked just for old times sake by now..

We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.

Steveo, it's so bad here that the major river (the Brazos) we get our
water from is so salty it leaves white residue on the dishes cleaned
in the dishwasher. They say it will be that way until north Texas gets
more rain to dilute the river water. No telling how much damage it's
doing to the hot water heaters and other devices that this seawater
flows through.
:-)

Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?


I have well water, and I still won't drink it. All our drinking water
is bottled.

So you have a water softener and your dishwasher and laundry machine and
such, run off the well? How deep is the well?

Lancer January 23rd 06 02:14 PM

Cold/Heat in Teaxas
 
On 20 Jan 2006 21:50:02 GMT, Steveo wrote:

Lancer wrote:
On 20 Jan 2006 12:10:38 GMT, Steveo wrote:

"U-Know-Who" wrote:
"Steveo" wrote in message
...
Lancer wrote:
On 18 Jan 2006 23:42:25 GMT, Steveo wrote:

Lancer wrote:
So far we haven't had any winter.. looks like another year with
5 or 6
months of over a 100 degree weather...

That's bad man. You guys need rain and cooler temps no doubt. I
almost feel guilty going from cold ass snow to rain over here in
the Buckeye. Wish I could send some of it your way Lance. I seen
some of those lawn fires on the teevee..how close was that **** to
you?

Some were a few miles away, I set my deck on tractor as low as it
would go. And then took the wheels off the deck, cut everything
around the house right down to bare dirt..


That's pretty ****ed up, even if you speak Spanish and swing a
machete'. You guys are toasted..:(


Ya' hate to ask for a deluge for fear of flood, but you guys need
your ground soaked just for old times sake by now..

We do need the rain, even my old shrubs like photinias are turning
brown..

We are almost flooding in my little area, dang.

Steveo, it's so bad here that the major river (the Brazos) we get our
water from is so salty it leaves white residue on the dishes cleaned
in the dishwasher. They say it will be that way until north Texas gets
more rain to dilute the river water. No telling how much damage it's
doing to the hot water heaters and other devices that this seawater
flows through.
:-)

Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?


I have well water, and I still won't drink it. All our drinking water
is bottled.

So you have a water softener and your dishwasher and laundry machine and
such, run off the well? How deep is the well?


No water softner, everything else runs off well water.

450 feet...

Frank Gilliland January 24th 06 03:42 AM

Cold/Heat
 
On Mon, 16 Jan 2006 03:27:51 GMT, james wrote
in :

On Sat, 14 Jan 2006 18:46:25 GMT, Lancer wrote:

+Thats total bull****...What happens if your tip has a 1,000 of static
+on it? ESD control is supposed to eliminate the difference in
+potential. ANSI ESD standards state that "everything should be at the
+same potential" That means the operator or person, all test equipment
+and irons. Why don't you do a search on ANSI ESD standards and find
+out for yourself... You are cluesless about ESD...

****

IF you are properly grounded, once you grab the handle of the
soldering iron it will within seconds no longer be at 1000 volts
potential.



Gee, then why bother to make soldering irons with grounded tips?


Maybe you should also read your Ansi Standards a bit more
and understand static prevention. Once you are grounded touching any
other ungrounded object will dissapate the charge built in it. That
charge will drain through your body to ground within a very short
period.



It's clear that you missed the physics demonstration with the balloon,
the glass rod and the rabbit fur.


Besides most ICs can shrug off 1KV with no damage.



Bull****. Take -any- chip you can find, hook a 1kV source (DC -or- AC)
across a ground pin and any non-ground pin, then see if it still
works. It won't. Unless it's designed for 1kV I can guarantee that you
will fry the chip. Try it again at only 100V and you will get the same
results.


It is neat to see
what a 15KV jolt does to the poly layers and the protective zeners on
an IC. If you ever get a chance to do some electron scanning of static
damage to the die pad area of an IC, do so. It is a really neat to see
what 15KV can do.



Been there, done that, got the T-shirt, coffee mug, bobble-head doll
and Seahawks jacket. Now if only the Mariners could get their act
together.....









----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

Frank Gilliland January 24th 06 04:24 AM

Cold/Heat
 
On Wed, 18 Jan 2006 22:53:53 GMT, james wrote
in :

On Mon, 16 Jan 2006 13:31:56 GMT, Lancer wrote:

+ Maybe you should read Ansi standard ANSI/ESD-S20-1999. It states
+Soldering Irons should have a tip to ground resistance of less than 1
+ohm. Companies spends tons of money each year to prevent static
+damge, and that icludes insuring that everything is at the same
+potential. Including the operator and all equipment he uses. Thats
+why iron's that are ANSI rated have a third wire, the ground. It
+wasn't put there to prevent the user from being "shocked"

******

maybe you should study Coulomb's and Guass' Law and understand how
Static Charges are developed. A soldering iron sitting on a
anti-static mat plugged into the wall is not going to develope large
electrostatic charge.



"Large" is a relative term.


What does happen is the tip of a soldering iron is in the strong field
of a time varying magnetic field. This comes from the inductance in
the heater coil. Putting the tip at ground potential will eliminate
any potential charge build up from the time varying magnetic field
from teh heater coil.



What you are ignoring is that the electromagnetic field from AC
current doesn't create -any- potential charge on the tip. The net
charge is zero, and any instantaneous potential charge is the result
of eddy currents which are almost non-existent. More specifically.....

If the tip is the secondary winding of a transformer as you suggest,
the effective number of turns on that winding is 1 turn, while the
primary (the heater coil) has considerably more than 1 turn. So any
voltage developed as a result of electromagnetic induction is going to
be low from the get-go. But that voltage is actually lower because the
tip is really just a shorted loop and is made with a material that has
a very low resistance. Not to mention that the number of primary turns
isn't going to be optimum for power transfer, nor does it have a
ferro-magnetic core. It's a ****-poor transformer at best.

Your theory is further flawed because it assumes an unshielded heater
using wire that is wound into a solenoid -- an assumption that, like
most assumptions, is frequently wrong. Almost all AC soldering irons
these days have shielded heaters, and many heaters are wound to be
non-inductive; i.e, they can't induce a current in squat, let alone
develop any significant (measurable) voltage on the tip. Then you have
the problem that the irons used for chips are only 15-30 watts, and
virtually all of those watts are converted to heat (after all, that's
the intended purpose of the soldering iron, isn't it?).

So here's your theory so far: A tiny fraction of 30 watts (I'm being
generous here) is converted to an electromagnetic field, worms its way
past the heater's shield where it loses most of its energy to eddy
currents, induces a current in a shorted, 1-turn secondary with very
low resistance and develops enough voltage to cause damage to.....
your imagination.


Go back to school.








----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

U-Know-Who January 24th 06 11:56 PM

Cold/Heat
 

"Frank Gilliland" wrote in message
...


Been there, done that, got the T-shirt, coffee mug, bobble-head doll
and Seahawks jacket. Now if only the Mariners could get their act
together.....


Ah, Frank. Now I understand why you tend to get a little ****y in October.
:-)



Steveo January 28th 06 03:24 AM

Cold/Heat in Teaxas
 
Steveo wrote:
Lancer wrote:
Dang, sorry to hear that man. What do you do for drinking water, buy
bottled?


I have well water, and I still won't drink it. All our drinking water
is bottled.


Hey It looked like you guys had a little bit of rain recently, no? I find
myself hoping some of that big state of Texas get's it now (your area),
when I'm watching the national weather map. (i usually only care about n
ohio) :)


All times are GMT +1. The time now is 05:37 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com