nuckolls.bob(at)aeroelect
Guest
|
 Posted: Thu Nov 14, 2013 12:45 pm Post subject: wire routing |
 |
|
| Quote: |
"D" for my routing of panel wires is about 3 inches
behind the wet compass and remote compass indicator. There are
lots of small ground wires mixed in with power wires in this
bundle; some wires go to the switches and instruments and some to
the ground forest of tabs. Would it help to just wrap the wet
compass and remote detector with shielding and leave wire routing as is?
|
Most of the situation you describe does not
raise concerns for large effects on a compass
except wires routed within inches of the
wet compass. While still inside the hangar, you
probably can't gage the effects of these wires.
You will probably have to wait until you get outside.
The magnitude and direction of interference
will vary with orientation of the fuselage
. . . i.e. compass 'heading'.
Back in the old days of panel mounted radios
with harnesses carrying perhaps 5A, it was
not uncommon to see several degrees of error
injected onto a compass reading when a radio was turned
ON/OFF. An SD-20 alternator on the back of an engine
had enough external field leakage to deflect the
magnetic compass 10-15 degrees on some headings.
That was 'fixed' with moving the compass from
a point on the glare shield onto the windshield.
Just raising the compass 12" or so reduced the
effects to 'acceptable'.
There's no way to accurately predict deleterious
effects for the situation you describe . . . it's
a try-it-and-see situation.
Bob . . .
| | - 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 |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
