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jluckey(at)pacbell.net
Guest

Posted: Tue Nov 05, 2013 4:55 pm Post subject: Bussing W58 Series Breakers

Does anyone have a picture showing a row of W58 series (reset-only)  circuit breakers w/ .250 quick connect terminals and how the feed side was bussed?



I can see using several quick connect terminals jumpered  together but i'm curious about other more elegant solutions.



TIA



-Jeff



 [quote][b]

rene(at)felker.com
Guest

Posted: Tue Nov 05, 2013 5:17 pm Post subject: Bussing W58 Series Breakers

No pictures…but copper bus bar across the terminals.

 

Rene' Felker

N423CF

801-721-6080



 

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Jeff Luckey

Sent: Tuesday, November 05, 2013 7:54 PM

To: aeroelectric-list(at)matronics.com

Subject: Bussing W58 Series Breakers

 



Does anyone have a picture showing a row of W58 series (reset-only)  circuit breakers w/ .250 quick connect terminals and how the feed side was bussed?



I can see using several quick connect terminals jumpered  together but i'm curious about other more elegant solutions.



TIA



-Jeff

 



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  [quote][b]

nuckolls.bob(at)aeroelect
Guest

Posted: Tue Nov 05, 2013 8:53 pm Post subject: Bussing W58 Series Breakers

At 06:53 PM 11/5/2013, you wrote:



  	  Quote: 	
		  Does anyone have a picture showing a row of W58 series (reset-only)  circuit breakers w/ .250 quick connect terminals and how the feed side was bussed?



 I can see using several quick connect terminals jumpered  together but i'm curious about other more elegant solutions.

 	




 Keystone electronics makes a .250 wide

 faston socket for use on etched circuit

 boards.  A bus-board could be fabricated

 to accept a row of these clips spaced at

 what ever matches your breaker layout.



 

 [img]cid:7.1.0.9.0.20131105224658.01f16878(at)aeroelectric.com.0[/img]  



 This would make a very low parts count

 bus-bar for fast-on tabbed breakers.



 

 

   Bob . . .

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uuccio(at)gmail.com
Guest

Posted: Tue Nov 05, 2013 9:46 pm Post subject: Bussing W58 Series Breakers

jluckey(at)pacbell.net
Guest

Posted: Wed Nov 06, 2013 11:50 am Post subject: Bussing W58 Series Breakers

Now, why didn't I think of that???



I may have a few of those clips left over from a previous project. Don't even need a circuit board, I could simply solder them to a brass strip to form a buss.

Thx Bob, 



-Jeff



        From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com>

 To: aeroelectric-list(at)matronics.com 

 Sent: Tuesday, November 5, 2013 8:53 PM

 Subject: Re: Bussing W58 Series Breakers

  

 

   At 06:53 PM 11/5/2013, you wrote:



  	  Quote: 	
		  Does anyone have a picture showing a row of W58 series (reset-only)  circuit breakers w/ .250 quick connect terminals and how the feed side was bussed?



 I can see using several quick connect terminals jumpered  together but i'm curious about other more elegant solutions.

 	




 Keystone electronics makes a .250 wide

 faston socket for use on etched circuit

 boards.  A bus-board could be fabricated

 to accept a row of these clips spaced at

 what ever matches your breaker layout.



 

 [img]cid:1.1028564332(at)web184904.mail.gq1.yahoo.com[/img]  



 This would make a very low parts count

 bus-bar for fast-on tabbed breakers.



 

     Bob . . .

e96f75.jpg

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27.83 KB

Viewed:

10465 Time(s)

uuccio(at)gmail.com
Guest

Posted: Wed Nov 06, 2013 12:10 pm Post subject: Bussing W58 Series Breakers

I think I’d like to give that a go too when I upgrade my current wiring… Can a circuit board carry enough current though? The copper layers don’t look very thick.   On the other hand, the brass strips that are found in home electrical stores seem a bit oversized to the task. 

 

Now, why didn't I think of that???



I may have a few of those clips left over from a previous project. Don't even need a circuit board, I could simply solder them to a brass strip to form a buss.

 



 





  [quote][b]

mrspudandcompany(at)veriz
Guest

Posted: Wed Nov 06, 2013 12:44 pm Post subject: Bussing W58 Series Breakers

 	  Quote: 	
		     



   

 Can    a circuit board carry enough current though? The copper layers don’t look very    thick.   On the other hand, the brass strips that are found in home    electrical stores seem a bit oversized to the task.    

     	  Quote: 	
		       Something I have found that works great is soft copper tubing.       You can purchase by the foot at your local hardware store.  Take a 1/4"      diameter piece and flatten gently with a hammer and it makes a great bus      bar.  If you want to attach it to the CB's with screws you can drill      holes and screw it on or solder if you prefer.  a similar method makes      a nice forrest of tabs for grounding.

      

     Roger

	
	
  

I am using the Free version of SPAMfighter.SPAMfighter has removed 1371 of my spam emails to date.Do you have a slow PC? Try a free scan!     [quote][b]

nuckolls.bob(at)aeroelect
Guest

Posted: Wed Nov 06, 2013 3:58 pm Post subject: Bussing W58 Series Breakers

At 06:53 PM 11/5/2013, you wrote:



 Does anyone have a picture showing a row of W58 series (reset-only)  circuit breakers w/ .250 quick connect terminals and how the feed side was bussed?



 I can see using several quick connect terminals jumpered  together but i'm curious about other more elegant solutions.



 

 Keystone electronics makes a .250 wide

 FastOn socket for use on etched circuit

 boards.  A bus-board could be fabricated

 to accept a row of these clips spaced at

 what ever matches your breaker layout.



 If you're really handy with sheet metal and

 getting rows of holes accurately located, you

 could fabricate from scratch . . . 



 [img]cid:.0[/img]



   Suggest you not try to bus more than 5 breakers

   at once. The finished bus-bar needs to press-on/

   pry-off of n-terminals all at once.  Unless

   I could locate the holes on a digitally indicated

   milling machine, I'd probably go the etched

   circuit board route. $60 will get you 3 boards

   5 breakers long that can be sheared into 3

   bus bars each. Enough material with precisely

   located holes to neatly tie 45 breakers together

   in groups of up to 5.



   Have you bought the breakers? They are available

   in screw terminal versions . . . 

 

   Bob . . .

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nuckolls.bob(at)aeroelect
Guest

Posted: Wed Nov 06, 2013 5:30 pm Post subject: Bussing W58 Series Breakers

At 02:09 PM 11/6/2013, you wrote:

 	  Quote: 	
		  I think I’d like to give that a go too when I 

upgrade my current wiring… Can a circuit board 

carry enough current though? The copper layers 

don’t look very thick.   On the other hand, the 

brass strips that are found in home electrical 

stores seem a bit oversized to the task.


	




    Yes, the number of breakers that can be fed

    from one piece of double sided board won't

    overheat it. You also connect the feeder

    wire as close as practical to the center

    so that copper clad is only 'feeding'

    two breakers.



   Bob . . .

nuckolls.bob(at)aeroelect
Guest

Posted: Wed Nov 06, 2013 5:32 pm Post subject: Bussing W58 Series Breakers

At 01:49 PM 11/6/2013, you wrote:

 	  Quote: 	
		  Now, why didn't I think of that???



I may have a few of those clips left over from a previous project. 

Don't even need a circuit board, I could simply solder them to a 

brass strip to form a buss.


	


   yes. you need to fixture them to be

   VERY well aligned before soldering.

   Normal to the buss surface and no

   twisting of the breaker terminal.



   Bob . . .

jluckey(at)pacbell.net
Guest

Posted: Wed Nov 06, 2013 6:30 pm Post subject: Bussing W58 Series Breakers

The nice thing about using 3 or 4 insulated quick connect terminals 

like this:



jumped together is that it makes the buss well insulated.  There would be no exposed B+ or metal bar.  (For the purposes of this discussion lets call this a "jumper buss")



With a buss bar like the one shown below we lose that insulation -- also could be difficult to work with for several reasons: difficult to pry on and off, easily bend brass bar or break circuit board, etc.



What are the problems, issues, cons of a "jumper buss"?

-Jeff



        From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com>

 To: aeroelectric-list(at)matronics.com 

 Sent: Wednesday, November 6, 2013 2:07 PM

 Subject: Re: Bussing W58 Series Breakers

  

 

   At 06:53 PM 11/5/2013, you wrote:



 Does anyone have a picture showing a row of W58 series (reset-only)  circuit breakers w/ .250 quick connect terminals and how the feed side was bussed?



 I can see using several quick connect terminals jumpered  together but i'm curious about other more elegant solutions.



 

 Keystone electronics makes a .250 wide

 FastOn socket for use on etched circuit

 boards.  A bus-board could be fabricated

 to accept a row of these clips spaced at

 what ever matches your breaker layout.



 If you're really handy with sheet metal and

 getting rows of holes accurately located, you

 could fabricate from scratch . . . 



 [img]cid:1.1031637242(at)web184906.mail.gq1.yahoo.com[/img]



   Suggest you not try to bus more than 5 breakers

   at once. The finished bus-bar needs to press-on/

   pry-off of n-terminals all at once.  Unless

   I could locate the holes on a digitally indicated

   milling machine, I'd probably go the etched

   circuit board route. $60 will get you 3 boards

   5 breakers long that can be sheared into 3

   bus bars each. Enough material with precisely

   located holes to neatly tie 45 breakers together

   in groups of up to 5.



   Have you bought the breakers? They are available

   in screw terminal versions . . . 

     Bob . . .

49c5037.jpg

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Filesize:

65.46 KB

Viewed:

10458 Time(s)

nuckolls.bob(at)aeroelect
Guest

Posted: Wed Nov 06, 2013 7:07 pm Post subject: Bussing W58 Series Breakers

At 08:29 PM 11/6/2013, you wrote:



  	  Quote: 	
		  The nice thing about using 3 or 4 insulated quick connect terminals 

 like this: 



 jumped together is that it makes the buss well insulated.  There would be no exposed B+ or metal bar.  (For the purposes of this discussion lets call this a "jumper buss")



 With a buss bar like the one shown below we lose that insulation -- also could be difficult to work with for several reasons: difficult to pry on and off, easily bend brass bar or break circuit board, etc.



 What are the problems, issues, cons of a "jumper buss"? 	




   Technically not a 'buss' due to the

   daisy chain of serial connections . . .

   but lots of those breakers have

   been wired that way. Probably not

   high risk . . . but what's wrong

   with a nice fuse-block?



 

 

   Bob . . .    [quote][b]

jay(at)horriblehyde.com
Guest

Posted: Thu Nov 07, 2013 2:28 am Post subject: Bussing W58 Series Breakers

I do the same, however, the copper tube (I use the stuff that is used as

water pipes in houses) is hard drawn and slightly brittle.  To get around

that I use a small blowtorch to heat it up until it glows red hot and then

let it cool in air.  That anneals it and makes it softer and more resistant

to cracking and easier to form- like when you flatten it.



 



Jay



 



 



From: owner-aeroelectric-list-server(at)matronics.com

[mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of R. curtis

Sent: 06 November 2013 10:43 PM

To: aeroelectric-list(at)matronics.com

Subject: Re: Bussing W58 Series Breakers



 



 



 



 Can a circuit board carry enough current though? The copper layers don't

look very thick.   On the other hand, the brass strips that are found in

home electrical stores seem a bit oversized to the task. 



 



Something I have found that works great is soft copper tubing.  You can

purchase by the foot at your local hardware store.  Take a 1/4" diameter

piece and flatten gently with a hammer and it makes a great bus bar.  If you

want to attach it to the CB's with screws you can drill holes and screw it

on or solder if you prefer.  a similar method makes a nice forrest of tabs

for grounding.



 



Roger



 



  _____

bob.verwey(at)gmail.com
Guest

Posted: Thu Nov 07, 2013 2:39 am Post subject: Bussing W58 Series Breakers

C'mon guys, you can buy copper strip cut to size, and save yourself a lot of hassle. Plus it looks better!



Best...  

Bob Verwey



IO 470  A35  ZU-DLW

  



On 7 November 2013 12:27, Jay Hyde <jay(at)horriblehyde.com (jay(at)horriblehyde.com)> wrote:

[quote]  

I do the same, however, the copper tube (I use the stuff that is used as water pipes in houses) is hard drawn and slightly brittle.  To get around that I use a small blowtorch to heat it up until it glows red hot and then let it cool in air.  That anneals it and makes it softer and more resistant to cracking and easier to form- like when you flatten it.  

 

Jay  

 

   

From: owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com) [mailto:owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com)] On Behalf Of R. curtis

  Sent: 06 November 2013 10:43 PM

To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)

Subject: Re: Bussing W58 Series Breakers  

 

 

 	  Quote: 	
		    

 



 Can a circuit board carry enough current though? The copper layers don’t look very thick.   On the other hand, the brass strips that are found in home electrical stores seem a bit oversized to the task.   

  	  Quote: 	
		  

 Something I have found that works great is soft copper tubing.  You can purchase by the foot at your local hardware store.  Take a 1/4" diameter piece and flatten gently with a hammer and it makes a great bus bar.  If you want to attach it to the CB's with screws you can drill holes and screw it on or solder if you prefer.  a similar method makes a nice forrest of tabs for grounding.  



 



Roger  

	
	


   



I am using the Free version of SPAMfighter.

SPAMfighter href="http://www.spamfighter.com/SLOW-PCfighter?cid=sigen">slow PC? Try a free scan!    	  Quote: 	
		    [b][/b]



[b][/b][b]www.aeroelectric.com[/b]  	
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nuckolls.bob(at)aeroelect
Guest

Posted: Thu Nov 07, 2013 6:37 am Post subject: Bussing W58 Series Breakers

At 04:38 AM 11/7/2013, you wrote:

  	  Quote: 	
		  C'mon guys, you can buy copper strip cut to size, and save yourself a lot of hassle. Plus it looks better!



 	


   I'll second that but with foundations in physics. Review

   the articles on our website that cite the term "gas tight"



  http://tinyurl.com/mjjl9dt



   I'll remind Listers that connectivity-magic happens

   when two conductors are held together with such force

   and rigidity across compliant surfaces that (1) ingress

   of moisture laden air and (2) relative motion between

   conductors is prevented.



   This design goal is the reason why round-wires and

   terminals become decidedly un-round under the crush

   of a crimped joint -OR- encapsulated in a cocoon of

   metal in the soldered joint.



   The most problematic joints in a wiring system are

   installer-fabricated with poor regard for process.

   Threaded fasteners are particularly needful of

   attention to details of flatness, force and 

   rigidity.



   This is why the fuse-blocks dropped onto B&C's

   counter at OSH turned out to be a kind of

   installer's dream for relief of worries about

   knowledge and skill sets. First, the metal to

   metal joints were minimized. All but the threaded

   stud on the end of the assembly are manufactured

   for integrity and service life. If the builder

   can get a nice flat flag on an AMP terminal

   cinched down on a 10-32 stud, probabilities for

   very low risk and cost of ownership are good.



   The circuit breakers under discussion are

   suited to service in appliances and/or systems

   were design goals call for protection of a single

   feeder. But lining a bunch of them up on a panel

   with some notion of bussing their supply terminals

   is a mis-application of original design goals.



   The technical definition of a buss is a conductive

   structure ideally comprised of one piece of

   metal from which numerous taps supply power to

   various loads in the system with an architecture

   that prevents any single failure from propagating

   beyond the single feeder. Here's a collection

   of pictures for a 'buss and breaker' structure

   removed from a legacy Piper airplane . . .



  http://tinyurl.com/lmbcm66



  http://tinyurl.com/lucl439



  http://tinyurl.com/myhmoew  



   The OBAM aviation builder-sphere is replete

   with arguments against religious observation

   of legacy design goals, "Well, the guy next

   to me in the hanger has been flying this

   (you fill in the blank) for years and hasn't

   had a bit of trouble."



   Given that our art is beginning its second

   century of real-life application, there are

   constellations of lessons-learned derived

   from a distillation of proven recipes for

   success re-enforced by understanding of the

   physics upon which they're built.



   Nobody stands over us with a rule book under

   one arm and a citation book under the other . . .

   but there ARE folks who we pay to worry that

   would be glad to assume that role in our

   craft. That event will mark the time when

   innovation and exploration of new ideas will

   slow to a crawl . . . if not halt completely.



   We would do well to expand our understanding of

   the arts and science while propagating it to

   the greatest number of interested individuals.

   There will always be those who don't find

   value in this endeavor . . . most will survive

   with little more than an elevated cost of

   ownership and laundry soap for the underwear.

   But a few will become candidates for trial in the Court

   of Dark-n-Stormy Nights where the narrator

   was not on board the airplane.



   The short response is, "buy already mill-flat

   materials from which to craft buss bars and

   fat-terminal jumpers". It is the exceedingly

   rare OBAM aviation shop that can take a round

   piece of metal and achieve such flatness.



   See:  http://tinyurl.com/khymmf3



  http://tinyurl.com/leunhah



 



 

   Bob . . .    [quote][b]

bbradburry(at)bellsouth.n
Guest

Posted: Thu Nov 07, 2013 7:08 am Post subject: Bussing W58 Series Breakers

There seems to be a typo on this ebay site.  I don’t think that one cubic inch of copper weighs 4 pounds!  ??  

   

http://www.ebay.com/itm/48-oz-1-16-Flat-Copper-Sheet-Plate-4-x-4-/271192124476?pt=LH_DefaultDomain_0&hash=item3f244f6c3c  

   

Bill  

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert L. Nuckolls, III

 Sent: Thursday, November 07, 2013 9:36 AM

 To: aeroelectric-list(at)matronics.com

 Subject: Re: AeroElectric-List: Bussing W58 Series Breakers  

  

   

At 04:38 AM 11/7/2013, you wrote:

 

   

C'mon guys, you can buy copper strip cut to size, and save yourself a lot of hassle. Plus it looks better!  



   I'll second that but with foundations in physics. Review

   the articles on our website that cite the term "gas tight"

 

 http://tinyurl.com/mjjl9dt

 

   I'll remind Listers that connectivity-magic happens

   when two conductors are held together with such force

   and rigidity across compliant surfaces that (1) ingress

   of moisture laden air and (2) relative motion between

   conductors is prevented.

 

   This design goal is the reason why round-wires and

   terminals become decidedly un-round under the crush

   of a crimped joint -OR- encapsulated in a cocoon of

   metal in the soldered joint.

 

   The most problematic joints in a wiring system are

   installer-fabricated with poor regard for process.

   Threaded fasteners are particularly needful of

   attention to details of flatness, force and 

   rigidity.

 

   This is why the fuse-blocks dropped onto B&C's

   counter at OSH turned out to be a kind of

   installer's dream for relief of worries about

   knowledge and skill sets. First, the metal to

   metal joints were minimized. All but the threaded

   stud on the end of the assembly are manufactured

   for integrity and service life. If the builder

   can get a nice flat flag on an AMP terminal

   cinched down on a 10-32 stud, probabilities for

   very low risk and cost of ownership are good.

 

   The circuit breakers under discussion are

   suited to service in appliances and/or systems

   were design goals call for protection of a single

   feeder. But lining a bunch of them up on a panel

   with some notion of bussing their supply terminals

   is a mis-application of original design goals.

 

   The technical definition of a buss is a conductive

   structure ideally comprised of one piece of

   metal from which numerous taps supply power to

   various loads in the system with an architecture

   that prevents any single failure from propagating

   beyond the single feeder. Here's a collection

   of pictures for a 'buss and breaker' structure

   removed from a legacy Piper airplane . . .

 

 http://tinyurl.com/lmbcm66

 

 http://tinyurl.com/lucl439

 

 http://tinyurl.com/myhmoew  

 

   The OBAM aviation builder-sphere is replete

   with arguments against religious observation

   of legacy design goals, "Well, the guy next

   to me in the hanger has been flying this

   (you fill in the blank) for years and hasn't

   had a bit of trouble."

 

   Given that our art is beginning its second

   century of real-life application, there are

   constellations of lessons-learned derived

   from a distillation of proven recipes for

   success re-enforced by understanding of the

   physics upon which they're built.

 

   Nobody stands over us with a rule book under

   one arm and a citation book under the other . . .

   but there ARE folks who we pay to worry that

   would be glad to assume that role in our

   craft. That event will mark the time when

   innovation and exploration of new ideas will

   slow to a crawl . . . if not halt completely.

 

   We would do well to expand our understanding of

   the arts and science while propagating it to

   the greatest number of interested individuals.

   There will always be those who don't find

   value in this endeavor . . . most will survive

   with little more than an elevated cost of

   ownership and laundry soap for the underwear.

   But a few will become candidates for trial in the Court

   of Dark-n-Stormy Nights where the narrator

   was not on board the airplane.

 

   The short response is, "buy already mill-flat

   materials from which to craft buss bars and

   fat-terminal jumpers". It is the exceedingly

   rare OBAM aviation shop that can take a round

   piece of metal and achieve such flatness.

 

   See: http://tinyurl.com/khymmf3

 

 http://tinyurl.com/leunhah

 

 

 

 

     

  Bob . . .    	  Quote: 	
		     	
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       [quote][b]

wtmills

Joined: 05 Feb 2007
Posts: 32

Posted: Thu Nov 07, 2013 9:05 am Post subject: Bussing W58 Series Breakers

I disagree with letting it "cool in air" unless the alloys of copper water-pipe and spark-plug gaskets differ significantly which I doubt.

 



 As a fledgling A&P in 1973 we were taught to heat copper spark-plug gaskets to "cherry red" and quench immediately in water.

 I admit having no experience with allowing the gaskets to cool in air. 

 



Here's an EAA demo:



 http://www.eaavideo.org/video.aspx?v=57437956001

 

 



Respectfully -

 Bill

SF bay area

 



 

[quote]  On 7 November 2013 12:27, you 

wrote:



 	  Quote: 	
		      

I do the same, however, the copper tube (I use the stuff that is used as water pipes in houses) is hard drawn and slightly brittle.  To get around that I use a small blowtorch to heat it up until it glows red hot and then let it cool in air.  That anneals it and makes it softer and more resistant to cracking and easier to form- like when you flatten it.  

	


[b]

nuckolls.bob(at)aeroelect
Guest

Posted: Thu Nov 07, 2013 9:33 am Post subject: Bussing W58 Series Breakers

At 09:08 AM 11/7/2013, you wrote:

  	  Quote: 	
		   There seems to be a typo on this ebay site.  I don’t think that one cubic inch of copper weighs 4 pounds!  ??

  

  http://www.ebay.com/itm/48-oz-1-16-Flat-Copper-Sheet-Plate-4-x-4-/271192124476?pt=LH_DefaultDomain_0&hash=item3f244f6c3c 

  

 Bill

  

 	




   That's an unfortunate citation. In the time

   before etched circuit boards, copper was rated/sold

   by gage and/or thickness times some dimension

   that described area. Then came copper clad ecb

   materials where somebody thought it was a good

   idea to speak to the thickness of copper not in

   terms of thickness but in some new convention

   like 'ounces per square foot'.



   It's a close cousin to logic that speaks of 'circular

   mil area' of a wire. A 10AWG solid wire is 102 mils

   in diameter with a real cross section of 

   3.14 x (.051)^2 = 0.00816 square inches. 10AWG

   said to have a CMA of 102^2 or 10,400 'circular

   mils'. It's 'handier' to rate current density in

   a wire in Amps per CMA . . . it's a discipline

   specific vernacular for folks who work with wires

   a lot . . . but it bugs a physicist. 



   The ounces per square foot are easier to measure/verify

   than the actual thickness of the copper where

   1 ounce per square foot is 1.344 mils. 



   Copper has a density of 5.168 oz/cu-in. So a

   sheet of copper 1" square and ".001344" thick

   will have weight of 5.168 x 0.001344 = .006945

   oz/sq-in x 144 = 1.000 oz/sq foot.



   Getting back to the eBay ad, we have .062"

   thick for  0.323 oz/sq-in x 144 = 46.5

   oz/sq-ft. Hence the citation for "48 oz"

   copper . . . a description that would be

   meaningless to guys who do copper gutters

   and flashing . . . or buss bars in airplanes.         



 



 

   Bob . . .    [quote][b]

mrspudandcompany(at)veriz
Guest

Posted: Thu Nov 07, 2013 10:33 am Post subject: Bussing W58 Series Breakers

 	  Quote: 	
		           I disagree with letting it "cool in    air" unless the alloys of copper water-pipe and spark-plug    gaskets differ significantly which I doubt.

    

    	  Quote: 	
		       Air cooling of the cherry red hot copper      will anneal it, however it will anneal to a softer state if you quench the      copper in water.

      

     Roger

	




	
  

I am using the Free version of SPAMfighter.SPAMfighter has removed 1378 of my spam emails to date.Do you have a slow PC? Try a free scan!     [quote][b]

wtmills

Joined: 05 Feb 2007
Posts: 32

Posted: Thu Nov 07, 2013 10:45 am Post subject: Bussing W58 Series Breakers

Thank you for this clarification.Â 


Bill


Do not archive



Sent via the Samsung Galaxy NoteÂ® II, an AT&T 4G LTE smartphone


-------- Original message --------

From: "R. curtis" <mrspudandcompany(at)verizon.net> 

Date: 11/07/2013  10:32 AM  (GMT-08:00) 

To: aeroelectric-list(at)matronics.com 

Subject: Re: AeroElectric-List: Bussing W58 Series Breakers 

 


Â 

I disagree with letting it "cool in air"Â unless the alloys of copper water-pipe and spark-plug gaskets differ significantly which I doubt.

Â 

Air cooling of the cherry red hot copper will anneal it, however it will anneal to a softer state if you quench the copper in water.

Â 

Roger


I am using the Free version of SPAMfighter.

SPAMfighter has removed 1378 of my spam emails to date.


Do you have a slow PC? Try a free scan!

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