Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

strobe wiring

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Thu Sep 21, 2006 4:46 pm Post subject: strobe wiring

I'm mounting the powerpacks for wingtip strobes in the wingtips  of my Zodiac XL.  I plan to use shielded wire (grounded at one end.)  My question is whether there is any problem bundling the wires with wires from a capacitance type fuel sender (0-5v).  I wonder if there is any possibility of generating fluctuations in needle readings when the strobes are operating.



Tim



Do not archive

- 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:

http://www.matronics.com/Navigator?AeroElectric-List

_________________
______________
CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring!

flyboy.bob(at)gmail.com
Guest

Posted: Thu Sep 21, 2006 5:32 pm Post subject: strobe wiring

Tim,

  

 I wouldn't think so, I'm doing the same thing but don't have the capacitance senders . . . the whole idea of mounting in the wingtips it to avoid interference . . . there is just 12V running to the power packs?!

   

 Bob in SE Iowa

 RV-8 Finishing



 

 On 9/21/06, Tim Juhl <juhl(at)avci.net (juhl(at)avci.net)> wrote: [quote]--> AeroElectric-List message posted by: "Tim Juhl" <juhl(at)avci.net  (juhl(at)avci.net)>



I'm mounting the powerpacks for wingtip strobes in the wingtips  of my Zodiac XL.  I plan to use shielded wire (grounded at one end.)  My question is whether there is any problem bundling the wires with wires from a capacitance type fuel sender (0-5v).  I wonder if there is any possibility of generating fluctuations in needle readings when the strobes are operating. 



[b]

- 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:

http://www.matronics.com/Navigator?AeroElectric-List

klehman(at)albedo.net
Guest

Posted: Fri Sep 22, 2006 1:42 pm Post subject: strobe wiring

I'll leave your question for someone else but FWIW here's a comment on

strobe wiring.

I ran a ground wire out to the wingtips for the strobe power supplies

and then later realized that I'd have to insulate the power supplies

from the airframe to use it as the aeroflash circuit boards are grounded

to the metal case as well as the ground lead. Interestingly I do have

the faint whoop whoop whine in the headphones from the strobe. Too faint

to hear in flight and I suppose it does remind me to turn them off after

landing. The headset jacks are insulated and wired with shielded wire.

However both the intercom and VHF radio are grounded at the forest of

tabs and by their metal cases that are mounted in the metal airframe.

The forest of tabs is about 18 inches from the intercom but that is

apparently sufficient for the headset to pick up the whine from the

"ground loop" created there. Capacitors, filters, intercom volume,

turning off the intercom, nor a separate battery for the strobes

(grounded at the forest of tabs) has any effect. It doesn't appear to be

cross coupling picked up by other lighting wires in the wire bundle

as turning those on or off also has no effect. Next I'll likely try

temporarily insulating the intercom case (also electrically grounded to

its circuit board).

Ken L.

Tim Juhl wrote:

  >

  >

  >I'm mounting the powerpacks for wingtip strobes in the wingtips  of my

Zodiac XL.  I plan to use shielded wire (grounded at one end.)  My

question is whether there is any problem bundling the wires with wires

from a capacitance type fuel sender (0-5v).  I wonder if there is any

possibility of generating fluctuations in needle readings when the

strobes are operating.

  >

  >Tim

  >

  >Do not archive

  >

  >--------

  >DO NOT ARCHIVE

  >______________

  >CFII

  >Champ L16A flying

  >Zodiac XL - Working on Flaps and Ailerons

  >

- 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:

http://www.matronics.com/Navigator?AeroElectric-List

Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Sun Sep 24, 2006 7:23 am Post subject: Re: strobe wiring

Thanks for your observations.  In other aircraft that I have owned where the power pack was mounted near the strobe I have also experienced interference that I could hear in the headphones.  In most cases I just learned to live with it.



I think in my case I will simply isolate the strobe wire from everything else as much as possible.   Better to be safe than sorry.



Thanks!



Tim Juhl

- 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:

http://www.matronics.com/Navigator?AeroElectric-List

_________________
______________
CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring!

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum