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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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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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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Subject: | Re: 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=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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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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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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