Today's Message Index:
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0. 12:13 AM - Network Issues At Matronics Last Few Days... (Matt Dralle)
1. 11:50 AM - Re: Bussing W58 Series Breakers (Jeff Luckey)
2. 12:10 PM - Re: Bussing W58 Series Breakers (Sacha)
3. 12:44 PM - Re: Bussing W58 Series Breakers (R. curtis)
4. 03:58 PM - Re: Bussing W58 Series Breakers (Robert L. Nuckolls, III)
5. 05:30 PM - Re: Bussing W58 Series Breakers (Robert L. Nuckolls, III)
6. 05:32 PM - Re: Bussing W58 Series Breakers (Robert L. Nuckolls, III)
7. 06:30 PM - Re: Bussing W58 Series Breakers (Jeff Luckey)
8. 07:07 PM - Re: Bussing W58 Series Breakers (Robert L. Nuckolls, III)
Message 0
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Subject: | Network Issues At Matronics Last Few Days... |
Dear Listers,
Starting sometime on Friday November 1st, my Internet Service Provider (ISP) began "upgrading" their Domain Name Servers (DNS). DNS servers allow the resolution of computer names such as "www.matronics.com" to real addresses such as 64.81.74.3. This also impacts email delivery as well, since there is another layer of resolution that applies to email names.
Because of this upgrade on the part of my ISP, DNS service started getting unreliable
around Friday sometime, but I didn't notice it until sometime on Saturday.
When I used a tool called "nslookup" to test the resolution of name-to-address,
about 50-75% of the time my ISP's servers would response with an "SERVFAIL"
indicating that they didn't know the answer. I opened a ticket with the
ISP on Saturday, and by Sunday afternoon I had no feedback on the ticket so I
called in to support. "We upgrading the DNS servers, and it should back by Sunday
at 5pm." 5pm came and went with no resolution.
Well, long story short by Tuesday morning things were still not fixed and in fact
much worse. So, I opted to move all my DNS service to a different service
provider. I have a lot of DNS entries, so it took a while to get everything moved
over. It generally takes about 24 hours for a change like that to fully
propagate across the Internet which would be Wednesday morning sometime. I've
noticed that the Matronics web server traffic is picking up again, so many sites
have already propagated the new information.
I really should have just moved the DNS on Saturday when I first noticed the troubles,
but with stuff like this, you just keep believing that it gonna be fixed
any minute now.... And, in fact, that's what my ISP kept telling me...
Its always a giant bummer when stuff like this happens and particularly during
the Fund Raiser. I apologize to anyone that has tried to make a Contribution
in the last few days and had issues or was simply unable to connect. By the time
you read this email, the DNS should be fully propagated, and I ask that you
please try again.
The Contribution web site URL is:
http://www.matronics.com/contribution
or, you can send a personal check to the following address:
Matronics / Matt Dralle
581 Jeannie Way
Livermore, CA 94550
Thank you for your kind consideration and patience,
Matt Dralle
Matronics Email List and Forum Administrator
Message 1
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Subject: | Re: Bussing W58 Series Breakers |
Now, why didn't I think of that???=0A=0AI may have a few of those clips lef
t over from a previous project. Don't even need a circuit board, I could si
mply solder them to a brass strip to form a buss.=0A=0A=0AThx Bob, =0A=0A
=0A-Jeff=0A=0A=0A=0A________________________________=0A From: "Robert L. Nu
ckolls, III" <nuckolls.bob@aeroelectric.com>=0ATo: aeroelectric-list@matron
ics.com =0ASent: Tuesday, November 5, 2013 8:53 PM=0ASubject: Re: AeroElect
ric-List: Bussing W58 Series Breakers=0A =0A=0A=0AAt 06:53 PM 11/5/2013, yo
u wrote:=0A=0A=0ADoes anyone have a picture=0Ashowing a row of W58 series (
reset-only)- circuit breakers w/ .250=0Aquick connect terminals and how t
he feed side was bussed?=0A>=0A>I can see using several quick connect termi
nals jumpered- together=0Abut i'm curious about other more elegant soluti
ons.=0A>=0A=0AKeystone electronics makes a .250 wide=0Afaston socket for us
e on etched circuit=0Aboards.- A bus-board could be fabricated=0Ato accep
t a row of these clips spaced at=0Awhat ever matches your breaker layout.
=0A=0A=0A -=0A=0AThis would make a very low parts count=0Abus-bar for fas
t-on tabbed breakers.=0A=0A=0A=0A- Bob . . .
Message 2
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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.
Message 3
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Subject: | Re: Bussing W58 Series Breakers |
Can a circuit board carry enough current though=3F The copper layers don't
look very thick. On the other hand, the brass strips that are found in h
ome 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=22 diameter p
iece 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
--
Do you have a slow PC=3F Try a Free scan http://www.spamfighter.com/SLOW-PCfi
ghter=3Fcid=sigen
Message 4
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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 . . .
Emacs!
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 . . .
Message 5
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Subject: | Bussing W58 Series Breakers |
At 02:09 PM 11/6/2013, you wrote:
>I think Id like to give that a go too when I
>upgrade my current wiring Can a circuit board
>carry enough current though? The copper layers
>dont 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 . . .
Message 6
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Subject: | Re: Bussing W58 Series Breakers |
At 01:49 PM 11/6/2013, you wrote:
>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 . . .
Message 7
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Subject: | Re: Bussing W58 Series Breakers |
=0AThe nice thing about using 3 or 4 insulated quick connect terminals =0Al
ike this:=0A=0Ajumped together is that it makes the buss well insulated.-
There would be no exposed B+ or metal bar.- (For the purposes of this di
scussion lets call this a "jumper buss")=0A=0AWith 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.=0A=0AWhat are the problems, issues, cons of a "j
umper buss"?=0A=0A=0A-Jeff=0A=0A=0A=0A________________________________=0A F
rom: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>=0ATo: aeroel
ectric-list@matronics.com =0ASent: Wednesday, November 6, 2013 2:07 PM=0ASu
bject: Re: AeroElectric-List: Bussing W58 Series Breakers=0A =0A=0A=0AAt 06
:53 PM 11/5/2013, you wrote:=0A=0ADoes anyone have a picture showing a row
of W58 series (reset-only)-=0Acircuit breakers w/ .250 quick connect term
inals and how the feed side=0Awas bussed?=0A=0AI can see using several quic
k connect terminals jumpered- together=0Abut i'm curious about other more
elegant solutions.=0A=0A=0AKeystone electronics makes a .250 wide=0AFastOn
socket for use on etched circuit=0Aboards.- A bus-board could be fabrica
ted=0Ato accept a row of these clips spaced at=0Awhat ever matches your bre
aker layout.=0A=0AIf you're really handy with sheet metal and=0Agetting row
s of holes accurately located, you=0Acould fabricate from scratch . . . =0A
=0A=0A=0A- Suggest you not try to bus more than 5 breakers=0A- at once.
The finished bus-bar needs to press-on/=0A- pry-off of n-terminals all a
t once.- Unless=0A- I could locate the holes on a digitally indicated
=0A- milling machine, I'd probably go the etched=0A- circuit board rout
e. $60 will get you 3 boards=0A- 5 breakers long that can be sheared into
3=0A- bus bars each. Enough material with precisely=0A- located holes
to neatly tie 45 breakers together=0A- in groups of up to 5.=0A=0A- Hav
e you bought the breakers? They are available=0A- in screw terminal versi
ons . . . =0A=0A- Bob . . .
Message 8
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Subject: | Re: Bussing W58 Series Breakers |
At 08:29 PM 11/6/2013, you wrote:
>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 . . .
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