AeroElectric-List Digest Archive

Sat 12/20/08


Total Messages Posted: 7



Today's Message Index:
----------------------
 
     1. 12:04 AM - How do you hold a pull able breaker opened (rparigor@SUFFOLK.LIB.NY.US)
     2. 07:10 AM - Re: How do you hold a pull able breaker opened (Robert L. Nuckolls, III)
     3. 11:01 AM - Re: Fw: Re: Ignition Switch (Robert L. Nuckolls, III)
     4. 01:30 PM - Re: How do you hold a pull able breaker opened (rparigor@SUFFOLK.LIB.NY.US)
     5. 02:33 PM - Re: How do you hold a pull able breaker opened (Robert L. Nuckolls, III)
     6. 06:42 PM - Re: How do you hold a pull able breaker opened (rparigor@SUFFOLK.LIB.NY.US)
     7. 09:03 PM - Re: How do you hold a pull able breaker opened (Charlie England)
 
 
 


Message 1


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    Time: 12:04:55 AM PST US
    Subject: How do you hold a pull able breaker opened
    From: rparigor@SUFFOLK.LIB.NY.US
    Hi Guys I have a P+B pull able breaker I want to use as my E-Bus feed. I ordered a small clip from Spruce used for that purpose, but I guess it is for a Klixon breaker, it's too large in diameter and not wide enough for a P+B pull able breaker. Anyone have any suggestions? I cut a blue translucent piece of polyurethane fuel line to length, then slit it. It kinda works, but I have a suspicion someone has figured a better way. Thx. in advance Ron Parigoris


    Message 2


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    Time: 07:10:28 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: How do you hold a pull able breaker opened
    At 01:56 AM 12/20/2008, you wrote: > >Hi Guys > >I have a P+B pull able breaker I want to use as my E-Bus feed. > >I ordered a small clip from Spruce used for that purpose, but I guess it >is for a Klixon breaker, it's too large in diameter and not wide enough >for a P+B pull able breaker. > >Anyone have any suggestions? > >I cut a blue translucent piece of polyurethane fuel line to length, then >slit it. It kinda works, but I have a suspicion someone has figured a >better way. I'm having trouble visualizing your design goal. Are you talking about a "circuit breaker lock"? http://www.aircraftspruce.com/catalog/elpages/edmobreakerlocks.php I presume you're talking about the alternate feed path to the e-bus. What is the value in putting a breaker on the panel for this function as opposed to a switch? Do you plan to pre-flight check this path? Is there also wire protection on this path located right at the battery bus? Does not a little piece of plastic become a problematic cockpit accessory like loose fuses, AA batteries, pencils, pistachio shells and Hershey's kisses? Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ----------------------------------------


    Message 3


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    Time: 11:01:57 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Ignition Switch
    At 11:41 PM 12/19/2008, you wrote: > >----- Original Message ----- >From: <mailto:hammer408@comcast.net>Henry Trzeciakowski >To: <mailto:aeroelectric-list@matronics.com>aeroelectric-list@matronics.com >Sent: Thursday, December 18, 2008 7:09 PM >Subject: AeroElectric-List: Re: Ignition Switch > >Bob: > >I just purchased an ACS Ignition Switch (A-510-2) [ >Off-Right-Left-Both-Start] and was looking at their wiring >instructions. I then downloaded your Z-26 diagram for Ignition >Switch Options - Magento. Both wiring diagrams are basically >identical with a few differences: > >Both diagrams jumper GRD &R for impulse coupling to Right Mag - shielded wire >Both depict L to Left Mag - shielded wire >Both depict B to Main Bus (7amp) >Both diagram S to Starter Seleniod > >The differences are: > >ACS has shielded wire grounded at the right & left mag only, and the >GRD terminal grounded at the grounding block or nearest structure. > >whereas your Z-26 have these wires shielded at both ends with the >shield closest to the ignition switch wired to the GRD, but your GRD >is NOT grounded to a grounding block or nearest structure.... > >ACS also says to use all shielded wire....I personally think that is >overkill... > >So, would you recommend grounding at both ends of the shielding >wire, but why not ground at the switch, or was this accidently omitted by you? > >Comments, suggestions appreciated. Yes, there are differences. I hope you will forgive me . . . I'm not trying to be obtuse but I just don't have the time at the moment to explain them. They've been discussed here on the List and you can probably find the exchanges in the matronics archives. It's a noise and ground loops issue. Bob . . .


    Message 4


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    Time: 01:30:48 PM PST US
    Subject: Re: How do you hold a pull able breaker opened
    From: rparigor@SUFFOLK.LIB.NY.US
    Hi Bob Thx. for the reply. I am building a Europa monowheel with a electrical dependent Rotax 914. Battery is aft. I have a Flaming River battery contactor on the passenger headrest to be used as main battery contactor. I have panel laid out to my liking, and besides the fact that there is precious little panel space I do not like a cluttered panel with stuff that could be situated elsewhere. : http://www.europaowners.org/modules.php?set_albumName=album211&op=modload&name=gallery&file=index&include=view_album.php Thus it was my choice to make in and aft of passenger headrest an electrical center. Space is precious and the aft section of headrest mounted on the aluminium panel has 6 pullable circuit breakers and 3 circuit breaker/switches. : http://www.europaowners.org/modules.php?set_albumName=album261&op=modload&name=gallery&file=index&include=view_album.php Wire run from Battery switch to aft Bus is inches. Buss run to Shotky diode from battery switch is inches. Shotky Diode wire run to E-Buss alternate feed P+B pullable Breaker/Switch is inches. Aft buss, E-Buss and always hot buss are located on P+B Breakers/Breaker/Switches fabricated from .025" copper ~ 3/8" wide. Yes all wires are protected except for the short run from battery contactor. My always hot buss consists of only two things, pitch trim on a 1 amp pullable breaker and E-Buss alternate feed pullable breaker. It is the E-Buss alternate feed pullable breaker I wish to keep "pulled". I am afraid it could be accidental pushed in when flipping on and off 3 Breaker/Switches, which would kill my battery if I walked away from plane with it closed. My E-Buss consists of fuel pump #2, Rotax 914 TCU and Airmaster CS Propeller controller. The link included in your E-Mail from ACS is the exact breaker clip I have, but it is not designed for a P+B pullable breaker. The E-buss alternate feed is not something that will get much use, but if I need it, just smack the Flaming River main switch, push E-buss alternate feed and turn on pump #2. I don't like having stuff floating around cockpit, thus for this situation if I were to use my tube, would use a piece of Spectra to teather it. BTW Spectra is incredibly strong fishing line. Would be nice to have something like a sliding lock. I could invent something if i need to, but am hoping someone else figured out a reasonable solution. It just so happens my basement computer is on the light switch near the top of the steps. Got to be a pain when family would go upstairs and leave me in the dark, but worst they turned off computer. I fabricated a gizmo that lived on the switch plate attachment screw with just the right amount of "wiggulation" and it was put under switch so you couldn't turn it off without a bit of effort. Worked and still works great. Took me way over an hour to fabricate and get it tweaked. A few weeks later I saw essential the same thing in hardware store for under a buck. Anyway any ideas? Thx. Sincerely Ron Parigoris > I presume you're talking about the alternate feed path > to the e-bus. What is the value in putting a breaker on > the panel for this function as opposed to a switch? Do you > plan to pre-flight check this path? Is there also wire > protection on this path located right at the battery > bus? Does not a little piece of plastic become a problematic > cockpit accessory like loose fuses, AA batteries, pencils, > pistachio shells and Hershey's kisses? > >


    Message 5


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    Time: 02:33:28 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: How do you hold a pull able breaker opened
    At 03:25 PM 12/20/2008, you wrote: > >Hi Bob > >Thx. for the reply. > >I am building a Europa monowheel with a electrical dependent Rotax 914. >Battery is aft. I have a Flaming River battery contactor on the passenger >headrest to be used as main battery contactor. > >I have panel laid out to my liking, and besides the fact that there is >precious little panel space I do not like a cluttered panel with stuff >that could be situated elsewhere. : >http://www.europaowners.org/modules.php?set_albumName=album211&op=modload&name=gallery&file=index&include=view_album.php > >Thus it was my choice to make in and aft of passenger headrest an >electrical center. Space is precious and the aft section of headrest >mounted on the aluminium panel has 6 pullable circuit breakers and 3 >circuit breaker/switches. : >http://www.europaowners.org/modules.php?set_albumName=album261&op=modload&name=gallery&file=index&include=view_album.php > >Wire run from Battery switch to aft Bus is inches. Buss run to Shotky >diode from battery switch is inches. Shotky Diode wire run to E-Buss >alternate feed P+B pullable Breaker/Switch is inches. > >Aft buss, E-Buss and always hot buss are located on P+B >Breakers/Breaker/Switches fabricated from .025" copper ~ 3/8" wide. Yes >all wires are protected except for the short run from battery contactor. > >My always hot buss consists of only two things, pitch trim on a 1 amp >pullable breaker and E-Buss alternate feed pullable breaker. It is the >E-Buss alternate feed pullable breaker I wish to keep "pulled". I am >afraid it could be accidental pushed in when flipping on and off 3 >Breaker/Switches, which would kill my battery if I walked away from plane >with it closed. My E-Buss consists of fuel pump #2, Rotax 914 TCU and >Airmaster CS Propeller controller. > >The link included in your E-Mail from ACS is the exact breaker clip I >have, but it is not designed for a P+B pullable breaker. The E-buss >alternate feed is not something that will get much use, but if I need it, >just smack the Flaming River main switch, push E-buss alternate feed and >turn on pump #2. I don't like having stuff floating around cockpit, thus >for this situation if I were to use my tube, would use a piece of Spectra >to teather it. BTW Spectra is incredibly strong fishing line. > >Would be nice to have something like a sliding lock. > >I could invent something if i need to, but am hoping someone else figured >out a reasonable solution. > >It just so happens my basement computer is on the light switch near the >top of the steps. Got to be a pain when family would go upstairs and leave >me in the dark, but worst they turned off computer. I fabricated a gizmo >that lived on the switch plate attachment screw with just the right amount >of "wiggulation" and it was put under switch so you couldn't turn it off >without a bit of effort. Worked and still works great. Took me way over an >hour to fabricate and get it tweaked. A few weeks later I saw essential >the same thing in hardware store for under a buck. > >Anyway any ideas? What is the diameter of the cb button under the head? What is the gap (thickness of the clip)? Bob . . .


    Message 6


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    Time: 06:42:30 PM PST US
    Subject: Re: How do you hold a pull able breaker opened
    From: rparigor@SUFFOLK.LIB.NY.US
    Hi Bob >>Anyway any ideas? > > What is the diameter of the cb button under the > head? What is the gap (thickness of the clip)? I just looked up spec sheet on W31 and they only provide head diameter which is .315". I will measure the length of head, and diameter and length of shaft (smaller diameter than head) and report back. Ron Parigoris


    Message 7


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    Time: 09:03:24 PM PST US
    From: Charlie England <ceengland@bellsouth.net>
    Subject: Re: How do you hold a pull able breaker
    opened rparigor@SUFFOLK.LIB.NY.US wrote: > > Hi Bob > > >>> Anyway any ideas? >>> >> What is the diameter of the cb button under the >> head? What is the gap (thickness of the clip)? >> > > I just looked up spec sheet on W31 and they only provide head diameter > which is .315". > > I will measure the length of head, and diameter and length of shaft > (smaller diameter than head) and report back. > > Ron Parigoris > Why not just bend up a U shaped guard like you'd use to protect a toggle switch? Charlie




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