|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

11-11-2014, 06:58 AM
|
|
|
|
Join Date: Oct 2012
Location: Rochester Hills, MI
Posts: 58
|
|
Securing Wiring From Wing Conduit
Hello,
I am looking for some feedback on properly securing wiring from the wing conduit.
Here is an example of how I secured the stall warning wiring:
I am having trouble finding some solid examples based on acceptable practices and did not find any guidance from VANs.
I cut a slot in the conduit and protected the wire at the slot with heat shrink and routed it as you see with tie-wraps.
Does this look acceptable? Any suggestions?
Thanks.
__________________
-Brendon
RV-10
|

11-11-2014, 08:23 AM
|
 |
|
|
Join Date: Jan 2007
Location: Battleground
Posts: 4,348
|
|
My only concern is that particular tubing has very sharp edges when cut. You will probably be ok with the heat shrink protection and the Tefzel insulation is pretty tough. I am not a big fan of the double stick zip tie mounts. I prefer the type that has a hole in the center to secure them to structure.
Being pretty nit picky here. I think overall this is pretty clean and would probably not present any problems down the line.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
|

11-11-2014, 08:28 AM
|
 |
|
|
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,947
|
|
Wing conduit
Welcome.
Only my preference, but I don't care for adhesive anchors or tie straps. Over time the plastic hardens and cracks.
I use adel clamps secured with a platenut. On my conduit, I used a pencil soldering iron to drill holes for wires.
That said, I don't think there's anything wrong with your solution. I've seen others do similar.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
|

11-11-2014, 09:13 AM
|
 |
|
|
Join Date: Apr 2013
Location: KEUL
Posts: 222
|
|
Maybe a slight highjacking of the thread, but what are the best methods for securing wire [b]inside[b] of the conduit? I'm in the process of installing a heated pitot and will run wires for power through the conduit. Eventually there will be other wires pulled for lighting, etc. Do you secure the various bundles (pitot, lighting) separately then pull them through? Do the bundles just flop around inside the conduit?
__________________
Dan
RV-7 Slow Build - Sold
KEUL
|

11-11-2014, 11:10 AM
|
 |
|
|
Join Date: Jan 2010
Location: Denver, CO
Posts: 1,967
|
|
One potential problem..
..is that the location you've chosen for your wire to penetrate the spar web might conflict with your aileron pushrod. You don't want the wire (or anything else) rubbing or potentially catching the pushrod.
|

11-11-2014, 11:12 AM
|
 |
|
|
Join Date: Jan 2007
Location: Battleground
Posts: 4,348
|
|
Quote:
Originally Posted by aeroaddict
Maybe a slight highjacking of the thread, but what are the best methods for securing wire [b]inside[b] of the conduit? I'm in the process of installing a heated pitot and will run wires for power through the conduit. Eventually there will be other wires pulled for lighting, etc. Do you secure the various bundles (pitot, lighting) separately then pull them through? Do the bundles just flop around inside the conduit?
|
I do not believe there is any specific standard. Conduits are allowed in lieu of wire bundles. AC-43xxxx does have wording that would lead one to believe the wires are bundled when in conduit, and you must allow a minimum of 25% extra space in the conduit for "future bundles". However, there isn't anything very specific that I found.
I chose to bundle mine, de-rated appropriately, and used short bands of heat shrink instead of type wraps. You could also lace them. Tie wraps get in the way inside the conduit if you want to pull more wired or bundles later.
However, I do not think any harm would come from loose wires moving around in the conduit. What is important is that your conduits are faired properly or use appropriate anti-chafing techniques at the entry and exits, like heat shrink or a Heyco bushing glued in.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
|

11-11-2014, 11:16 AM
|
 |
|
|
Join Date: Jan 2007
Location: Battleground
Posts: 4,348
|
|
Quote:
Originally Posted by ppilotmike
..is that the location you've chosen for your wire to penetrate the spar web might conflict with your aileron pushrod. You don't want the wire (or anything else) rubbing or potentially catching the pushrod.
|
You are correct, but there should be no reason to route your tubing back behind the spar since it is already in front of it.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
|

11-11-2014, 11:49 AM
|
 |
|
|
Join Date: Apr 2013
Location: KEUL
Posts: 222
|
|
Thanks Jon
I was also thinking of heat shrink tubing to combine the wires of the various bundles and will use something for anti-chafing.
So basically the bundles are ok to flop around in the conduit.
A lot to learn as I move forward towards the fuss build and panel/firewall.
__________________
Dan
RV-7 Slow Build - Sold
KEUL
|

11-11-2014, 01:23 PM
|
|
|
|
Join Date: Oct 2012
Location: Rochester Hills, MI
Posts: 58
|
|
Quote:
Originally Posted by ppilotmike
..is that the location you've chosen for your wire to penetrate the spar web might conflict with your aileron pushrod. You don't want the wire (or anything else) rubbing or potentially catching the pushrod.
|
The spar web penetration is per the plans, but you are right there is a potential conflict with the aileron pushrod since it runs right through the largest lightening hole in the ribs. The plans show the wiring wrapped around the pitot tube to pull it clear of the aileron pushrod. I will not be using the stock tube, so I will need to rethink the routing a bit.
I am also reconsidering the use of the double sided tape mounting bases. I will probably use #6 screws with adel clamps or a tie wrap base with a center hole.
Thanks everyone for the comments.
__________________
-Brendon
RV-10
|

11-11-2014, 02:37 PM
|
 |
|
|
Join Date: Aug 2011
Location: Keller, TX
Posts: 408
|
|
Click Bond
You could also use Click Bond tie wrap bases like these.
http://www.aircraftspruce.com/catalo...s/04-06000.php
We use these to hold the Tracker cable on the new AH-64E Apache Helmet (AAIH) we make at work. The are used on the C-17 too.
__________________
RV-10 N331JH 3rd owner (First flew in 2005, #15 flying)
Northwest Regional 52F
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 08:30 AM.
|