AeroElectric-List Digest Archive

Thu 01/07/16


Total Messages Posted: 5



Today's Message Index:
----------------------
 
     1. 06:24 AM - Re: Grounding Tabs (Valovich, Paul)
     2. 05:27 PM - Re: Grounding Tabs (Robert L. Nuckolls, III)
     3. 06:04 PM - Re: Grounding Tabs (Michael Lazarowicz)
     4. 11:50 PM - Re: Grounding Tabs (B Tomm)
     5. 11:51 PM - Re: Grounding Tabs (B Tomm)
 
 
 


Message 1


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    Time: 06:24:49 AM PST US
    From: "Valovich, Paul" <pvalovich@dcscorp.com>
    Subject: Re: Grounding Tabs
    In my RV-8A I used the forward baggage bin for fuze and grounding blocks. S till had the shelf for baggage. I connected two ground tabs blocks - one af t and one forward of the firewall, then connected that via welding cable to the engine. Rather than run relatively big wires back through the cockpit, I used local grounds for pitot heat, flaps and strobes. Paul Valovich N192NM 650+ hrs


    Message 2


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    Time: 05:27:54 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Grounding Tabs
    At 12:03 PM 1/6/2016, you wrote: >I am=C2 currently wiring my RV8.=C2 I plan on >using a "forest of Tabs" for almost all of my >grounding, Avionics, EFIS, Lights, Pumps flaps >etc.=C2 Because of the location of the forward >baggage compartment on the RV8,=C2 it is not >really practical have the tabs on the firewall. >I have a forward battery and have a brass bolt >connecting the Neg. lead and engine grounding >strap to the firewall.=C2 What I plan to do is >run a #6 cable from there to the "forest of >tabs" mounted on the bulkhead behind the >instrument panel.=C2 I plan to insulate the brass >plate and tabs form the bulkhead so all the >grounding will go directly to the brass bolt in >the firewall.=C2 This way there is a true single >point grounding.=C2 It also makes for a nice >clean instillation.=C2 I have read the Aero >Electric book several times and will probably >never fully understand ground loops.=C2 So here are my questions. Study Figure z-15 of the 'Connection" at http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K1.pdf and . . . http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K3p1.pdf Then see if your questions are answered or in need of adjustment . . . Generally speaking, PANEL and AIRFRAME systems congregate at their own central locations. They get tied together with a single conductor of appropriate size and integrity. Bob . . .


    Message 3


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    Time: 06:04:36 PM PST US
    Subject: Re: Grounding Tabs
    From: Michael Lazarowicz <tllaz330@gmail.com>
    I think my question may be in need of adjustment. I pretty much get the do not s of grounding the headphones locally. But my question still is If I need to move the forest of tabs off the firewall by way of a large gauge wire because I really can't or do not like running all my no avionics stuff like cockpit lights, fuel pumps, panned lights to a local ground. Does it make sense to use the same gauge wire (in this case #6) to relocate the forest of tabs away from the firewall. My engine and battery are connected to the firewall with the 5/16 brass bolt. The 6 gauge wire to the grounding tabs are also connected to the same brass firewall bolt. I will have a few grounds locally lights etc. but really like the single point Idea. Because of the G3x system engine sensor ho0kup there is virtually nothing to ground on the firewall side. I am pretty much a dummy on this stuff and was given your book from my life long friend who runs Central States Ass. Terry, Schubert. If It was a Canard EZ I would be in great shape. Unfortunately since I am building a "span can" its different. On Thu, Jan 7, 2016 at 8:26 PM, Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 12:03 PM 1/6/2016, you wrote: > > I am=C3=82 currently wiring my RV8.=C3=82 I plan on using a "forest of Tabs" for > almost all of my grounding, Avionics, EFIS, Lights, Pumps flaps etc.=C3 =82 > Because of the location of the forward baggage compartment on the RV8,=C3 =82 it > is not really practical have the tabs on the firewall. I have a forward > battery and have a brass bolt connecting the Neg. lead and engine groundi ng > strap to the firewall.=C3=82 What I plan to do is run a #6 cable from th ere to > the "forest of tabs" mounted on the bulkhead behind the instrument panel. =C3=82 > I plan to insulate the brass plate and tabs form the bulkhead so all the > grounding will go directly to the brass bolt in the firewall.=C3=82 This way > there is a true single point grounding.=C3=82 It also makes for a nice c lean > instillation.=C3=82 I have read the Aero Electric book several times and will > probably never fully understand ground loops.=C3=82 So here are my quest ions. > > > Study Figure z-15 of the 'Connection" at > > http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K1.pdf > > and . . . > > http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K3p1.pdf > > > Then see if your questions are answered or in need of > adjustment . . . > > Generally speaking, PANEL and AIRFRAME systems congregate > at their own central locations. They get tied together with > a single conductor of appropriate size and integrity. > > > Bob . . . >


    Message 4


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    Time: 11:50:05 PM PST US
    From: "B Tomm" <fvalarm@rapidnet.net>
    Subject: Grounding Tabs
    I did what I believe you are proposing. There will be a lot of ground wires to terminate. I filled two forest of tabs. One on the firewall with the pass-through bolt for the battery neg to connect to. The other just behind the instrument panel with a #6 wire joining them for good measure (and a little extra weight :) ). Bevan _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Michael Lazarowicz Sent: Thursday, January 07, 2016 6:03 PM Subject: Re: AeroElectric-List: Grounding Tabs I think my question may be in need of adjustment. I pretty much get the do not s of grounding the headphones locally. But my question still is If I need to move the forest of tabs off the firewall by way of a large gauge wire because I really can't or do not like running all my no avionics stuff like cockpit lights, fuel pumps, panned lights to a local ground. Does it make sense to use the same gauge wire (in this case #6) to relocate the forest of tabs away from the firewall. My engine and battery are connected to the firewall with the 5/16 brass bolt. The 6 gauge wire to the grounding tabs are also connected to the same brass firewall bolt. I will have a few grounds locally lights etc. but really like the single point Idea. Because of the G3x system engine sensor ho0kup there is virtually nothing to ground on the firewall side. I am pretty much a dummy on this stuff and was given your book from my life long friend who runs Central States Ass. Terry, Schubert. If It was a Canard EZ I would be in great shape. Unfortunately since I am building a "span can" its different. On Thu, Jan 7, 2016 at 8:26 PM, Robert L. Nuckolls, III <nuckolls.bob@aeroelectric.com> wrote: At 12:03 PM 1/6/2016, you wrote: I am=C2 currently wiring my RV8.=C2 I plan on using a "forest of Tabs" for almost all of my grounding, Avionics, EFIS, Lights, Pumps flaps etc.=C2 Because of the location of the forward baggage compartment on the RV8,=C2 it is not really practical have the tabs on the firewall. I have a forward battery and have a brass bolt connecting the Neg. lead and engine grounding strap to the firewall.=C2 What I plan to do is run a #6 cable from there to the "forest of tabs" mounted on the bulkhead behind the instrument panel.=C2 I plan to insulate the brass plate and tabs form the bulkhead so all the grounding will go directly to the brass bolt in the firewall.=C2 This way there is a true single point grounding.=C2 It also makes for a nice clean instillation.=C2 I have read the Aero Electric book several times and will probably never fully understand ground loops.=C2 So here are my questions. Study Figure z-15 of the 'Connection" at http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K1.pdf and . . . http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K3p1.pdf Then see if your questions are answered or in need of adjustment . . . Generally speaking, PANEL and AIRFRAME systems congregate at their own central locations. They get tied together with a single conductor of appropriate size and integrity. Bob . . .


    Message 5


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    Time: 11:51:14 PM PST US
    From: "B Tomm" <fvalarm@rapidnet.net>
    Subject: Grounding Tabs
    I forgot to mention, that this has been working very well with no strange electrical noises in the headsets when strobes, flap motors etc are turned on. So I'm a very happy camper. Bevan _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Michael Lazarowicz Sent: Thursday, January 07, 2016 6:03 PM Subject: Re: AeroElectric-List: Grounding Tabs I think my question may be in need of adjustment. I pretty much get the do not s of grounding the headphones locally. But my question still is If I need to move the forest of tabs off the firewall by way of a large gauge wire because I really can't or do not like running all my no avionics stuff like cockpit lights, fuel pumps, panned lights to a local ground. Does it make sense to use the same gauge wire (in this case #6) to relocate the forest of tabs away from the firewall. My engine and battery are connected to the firewall with the 5/16 brass bolt. The 6 gauge wire to the grounding tabs are also connected to the same brass firewall bolt. I will have a few grounds locally lights etc. but really like the single point Idea. Because of the G3x system engine sensor ho0kup there is virtually nothing to ground on the firewall side. I am pretty much a dummy on this stuff and was given your book from my life long friend who runs Central States Ass. Terry, Schubert. If It was a Canard EZ I would be in great shape. Unfortunately since I am building a "span can" its different. On Thu, Jan 7, 2016 at 8:26 PM, Robert L. Nuckolls, III <nuckolls.bob@aeroelectric.com> wrote: At 12:03 PM 1/6/2016, you wrote: I am=C2 currently wiring my RV8.=C2 I plan on using a "forest of Tabs" for almost all of my grounding, Avionics, EFIS, Lights, Pumps flaps etc.=C2 Because of the location of the forward baggage compartment on the RV8,=C2 it is not really practical have the tabs on the firewall. I have a forward battery and have a brass bolt connecting the Neg. lead and engine grounding strap to the firewall.=C2 What I plan to do is run a #6 cable from there to the "forest of tabs" mounted on the bulkhead behind the instrument panel.=C2 I plan to insulate the brass plate and tabs form the bulkhead so all the grounding will go directly to the brass bolt in the firewall.=C2 This way there is a true single point grounding.=C2 It also makes for a nice clean instillation.=C2 I have read the Aero Electric book several times and will probably never fully understand ground loops.=C2 So here are my questions. Study Figure z-15 of the 'Connection" at http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K1.pdf and . . . http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z15K3p1.pdf Then see if your questions are answered or in need of adjustment . . . Generally speaking, PANEL and AIRFRAME systems congregate at their own central locations. They get tied together with a single conductor of appropriate size and integrity. Bob . . .




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