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bcone1381
Joined: 25 Apr 2017 Posts: 42 Location: Southeast Michigan
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Posted: Wed Aug 28, 2019 9:03 am Post subject: Wires that pass near a Magnetometer |
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I am building a Bearhawk Patrol and am installing the wiring in the wing to accommodate Whelen LED wing tip nave lights and strobes, plus a Garmin Magnetometer. I need to comply with the Garmin instructions which say the electrical conductors passing more than 100mA current should be a twisted shielded pair if they pass within 10 feet of the magnetometer.
The Whelen lights have four wires. One ground wire, one sync wire to sync up the strobes, and two 12Vdc power wires, one for the Nav Light, and one for the Strobe.
In order to apply Garmin's "Twisted Sheilded Pair" demand, am I right in thinking I should run three twisted shield pairs, one for each power wire, and one for the sync, having each of these three wires twisted with a ground wire? Then I think I'll run the ground and shielding to the ground block at the inside of my firewall.
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_________________ Brooks Cone
Bearhawk Patrol Kit Build |
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nuckolls.bob(at)aeroelect Guest
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Posted: Wed Aug 28, 2019 11:08 am Post subject: Wires that pass near a Magnetometer |
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At 12:03 PM 8/28/2019, you wrote:
Quote: | --> AeroElectric-List message posted by: "bcone1381" <bcone1964(at)gmail.com>
I am building a Bearhawk Patrol and am installing the wiring in the wing to accommodate Whelen LED wing tip nave lights and strobes, plus a Garmin Magnetometer. I need to comply with the Garmin instructions which say the electrical conductors passing more than 100mA current should be a twisted shielded pair if they pass within 10 feet of the magnetometer.
The Whelen lights have four wires. One ground wire, one sync wire to sync up the strobes, and two 12Vdc power wires, one for the Nav Light, and one for the Strobe.
In order to apply Garmin's "Twisted Sheilded Pair" demand, am I right in thinking I should run three twisted shield pairs, one for each power wire, and one for the sync, having each of these three wires twisted with a ground wire? Then I think I'll run the ground and shielding to the ground block at the inside of my firewall. |
No . . . was there any wire supplied with
the Whelen parts? Just keeping the
4 wires together under a single jacket
should suffice. The Whelen kits used to
include wing wire (used to be twisted
trio under shield) . . . any
wire included these days?
Bob . . .
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nuckolls.bob(at)aeroelect Guest
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Posted: Wed Aug 28, 2019 11:37 am Post subject: Wires that pass near a Magnetometer |
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At 12:03 PM 8/28/2019, you wrote:
Quote: | --> AeroElectric-List message posted by: "bcone1381" <bcone1964(at)gmail.com>
I am building a Bearhawk Patrol and am installing the wiring in the wing to accommodate Whelen LED wing tip nave lights and strobes, plus a Garmin Magnetometer. I need to comply with the Garmin instructions which say the electrical conductors passing more than 100mA current should be a twisted shielded pair if they pass within 10 feet of the magnetometer.
The Whelen lights have four wires. One ground wire, one sync wire to sync up the strobes, and two 12Vdc power wires, one for the Nav Light, and one for the Strobe.
In order to apply Garmin's "Twisted Sheilded Pair" demand, am I right in thinking I should run three twisted shield pairs, one for each power wire, and one for the sync, having each of these three wires twisted with a ground wire? Then I think I'll run the ground and shielding to the ground block at the inside of my firewall. |
No . . . was there any wire supplied with
the Whelen parts? Just keeping the
4 wires together under a single jacket
should suffice. The Whelen kits used to
include wing wire (used to be twisted
trio under shield) . . . any
wire included these days?
Bob . . .
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nuckolls.bob(at)aeroelect Guest
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Posted: Wed Aug 28, 2019 11:38 am Post subject: Wires that pass near a Magnetometer |
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At 12:03 PM 8/28/2019, you wrote:
Quote: | --> AeroElectric-List message posted by: "bcone1381" <bcone1964(at)gmail.com>
I am building a Bearhawk Patrol and am installing the wiring in the wing to accommodate Whelen LED wing tip nave lights and strobes, plus a Garmin Magnetometer. I need to comply with the Garmin instructions which say the electrical conductors passing more than 100mA current should be a twisted shielded pair if they pass within 10 feet of the magnetometer. |
What model of tip lights are you installing?
Bob . . .
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nuckolls.bob(at)aeroelect Guest
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Posted: Wed Aug 28, 2019 11:44 am Post subject: Wires that pass near a Magnetometer |
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At 12:03 PM 8/28/2019, you wrote:
Quote: | --> AeroElectric-List message posted by: "bcone1381" <bcone1964(at)gmail.com>
I am building a Bearhawk Patrol and am installing the wiring in the wing to accommodate Whelen LED wing tip nave lights and strobes, plus a Garmin Magnetometer. I need to comply with the Garmin instructions which say the electrical conductors passing more than 100mA current should be a twisted shielded pair if they pass within 10 feet of the magnetometer.
The Whelen lights have four wires. One ground wire, one sync wire to sync up the strobes, and two 12Vdc power wires, one for the Nav Light, and one for the Strobe.
In order to apply Garmin's "Twisted Sheilded Pair" demand, am I right in thinking I should run three twisted shield pairs, one for each power wire, and one for the sync, having each of these three wires twisted with a ground wire? Then I think I'll run the ground and shielding to the ground block at the inside of my firewall. |
No . . . was there any wire supplied with
the Whelen parts? Just keeping the
4 wires together under a single jacket
should suffice. The Whelen kits used to
include wing wire (used to be twisted
trio under shield) . . . any
wire included these days?
Bob . . .
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nuckolls.bob(at)aeroelect Guest
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Posted: Wed Aug 28, 2019 11:45 am Post subject: Wires that pass near a Magnetometer |
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At 12:03 PM 8/28/2019, you wrote:
Quote: | --> AeroElectric-List message posted by: "bcone1381" <bcone1964(at)gmail.com>
I am building a Bearhawk Patrol and am installing the wiring in the wing to accommodate Whelen LED wing tip nave lights and strobes, plus a Garmin Magnetometer. I need to comply with the Garmin instructions which say the electrical conductors passing more than 100mA current should be a twisted shielded pair if they pass within 10 feet of the magnetometer. |
What model of tip lights are you installing?
Bob . . .
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bcone1381
Joined: 25 Apr 2017 Posts: 42 Location: Southeast Michigan
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Posted: Wed Aug 28, 2019 2:53 pm Post subject: Re: Wires that pass near a Magnetometer |
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The Whelen product is called Orion 600. Model number is OR6001. The light has a pig tail on it, no other wiring. Here is a link to the installation guide.
https://www.whelen.com/install/146/14662.pdf
| - The Matronics AeroElectric-List Email Forum - | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________ Brooks Cone
Bearhawk Patrol Kit Build |
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nuckolls.bob(at)aeroelect Guest
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Posted: Wed Aug 28, 2019 7:00 pm Post subject: Wires that pass near a Magnetometer |
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At 05:53 PM 8/28/2019, you wrote:
Quote: | --> AeroElectric-List message posted by: "bcone1381" <bcone1964(at)gmail.com>
The Whelen product is called Orion 600. Model number is OR6001. The light has a pig tail on it, no other wiring. Here is a link to the installation guide.
https://www.whelen.com/install/146/14662.pdf
--------
Brooks Cone
Bearhawk Patrol Kit Build |
Okay, go talk to this guy
on eBay . . . he has just
what you need
https://tinyurl.com/y6ounn6l
Extend all 4 wires into the cockpit
grounding NOTHING at the wing tip.
Ground the shield at the firewall.
Bob . . .
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bcone1381
Joined: 25 Apr 2017 Posts: 42 Location: Southeast Michigan
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Posted: Thu Aug 29, 2019 5:45 am Post subject: Re: Wires that pass near a Magnetometer |
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I'm very grateful and very impressed with your help on this Bob! Thanks so much.
Brooks
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_________________ Brooks Cone
Bearhawk Patrol Kit Build |
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