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05-20-2015, 04:07 PM
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Join Date: Feb 2006
Location: Nashville, TN
Posts: 54
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Terminal Bar
I had an issue last week where defrost hose rubbed through and shorted against this terminal bar. I didn't build this plane so not sure if this is a normal setup on the wiring. These are positive connections from and between various breakers and the loads. I am not comfortable with these being where other items might rub or contact these.
I am looking for some advice on protecting this area and these terminal connections.
Thanks,

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05-20-2015, 04:30 PM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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This is the type of connection that Van's wiring harness uses. I don't like it much either.
Stein and others sell these. They work much better.
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Jesse Saint
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05-20-2015, 04:37 PM
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Join Date: Dec 2011
Location: Edinburg, TX
Posts: 617
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This is a bad idea
Typical Van's cheap way. It works, thousands flying and not falling out of the sky. Is it the best way to do it? Probably not for the reason you cited. There are a lot of planes out there that have wires, cables, scat tubing and all sorts of stuff running in that area that would be best labeled a rats nest. Terminal blocks are made for this purpose. They have barriers to help prevent shorts and stuff from coming into contact with the wiring connections. They are cheap, readily available, and a heck of a lot safer to use. Just one old guy's opinion.
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RV-3 Rebuilding
RV-9 Flying and having fun, experimenting and having fun, did I mention flying and having fun?
RV-6A SOLD
Maule M5-235C SOLD
C-172G SOLD
Stinson L5 SOLD
Grumman AA1A SOLD
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05-20-2015, 04:40 PM
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Join Date: Sep 2012
Location: Omaha, NE (KMLE)
Posts: 2,247
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I'm not that far along in the build to see what Van's does. Is that a bus bar, or some kind of non-conductive bar with terminal studs? Either way... I have seen it done, but I would never leave a hot bus bar or terminal strip unprotected. It's crazy to do so and just hope nothing ever touches it. I wouldn't even leave a barrier strip with hot connections exposed. Yeesh.
At the very least it needs a plastic cover of some sort.
__________________
Dale
Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
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05-20-2015, 04:46 PM
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Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,645
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Uncovered terminal worries
I have been struggling with this same issue in my build. I just can't bring myself to using an uncovered terminal strip for the wing wires. Why isn't there a terminal strip that has a protective cover over it so there is no chance of shorting it out? Maybe there is and I just haven't found it.
My VP power box has one wire for landing, one for nav, one for strobe. I need to split it to go to each wing and light. My plan is to use one of these:
http://steinair.com/storedetail.cfm?productid=609
or this if more are needed:
http://steinair.com/storedetail.cfm?productid=607
and a 9 pin D-Sub pinned connectors so I can have a positive connection without having a bare terminal. Does that sound like a reasonable method to go with?
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rockwoodrv9a
Williamston MI
O-320 D2A
Awaiting DAR Inspection
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05-21-2015, 11:13 AM
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Join Date: Feb 2008
Location: Largo, FL
Posts: 1,029
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Check Amazon for "covered terminal strips"
I just did --- they have them.
R.
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RV-10 Co-built, maintained, flown (sold)
RV-8A Maintained and flown (Sold)
RV-6A Bought and Flying (N177RV), upgrades $$$
IO360, 180HP/CS, AFS 5600T, D10A, G650, G430, G327, ADS-B, VIZ385 AP
Very Happy Contributor
Comm, SMEL, CFII, A&P
Based at KCLW (Clearwater, FL)
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05-21-2015, 03:44 PM
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Join Date: Mar 2008
Location: houston, texas
Posts: 900
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Wicks.
If you go to the Wicks catalog you will find Buss or terminal bars that also have insolated covers far them. This is the type we have used in all kinds of places to keep from having this very problem. You place the bar, hook all up to it then put the cover on top to cover everything so nothing can rub on it.
Hope this helps. Yours. R.E.A. III #80888
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05-21-2015, 05:12 PM
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Join Date: Feb 2006
Location: Nashville, TN
Posts: 54
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Quote:
Originally Posted by Robert Anglin
If you go to the Wicks catalog you will find Buss or terminal bars that also have insolated covers far them. This is the type we have used in all kinds of places to keep from having this very problem. You place the bar, hook all up to it then put the cover on top to cover everything so nothing can rub on it.
Hope this helps. Yours. R.E.A. III #80888
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Thanks everyone. I will look into this type of solution. Btw, I had looked at terminal boots or nipples and just didn't feel this was anything but a temporary fix.
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05-22-2015, 07:36 AM
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Join Date: Aug 2008
Location: Jacksonville, FL
Posts: 522
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Quote:
Originally Posted by rockwoodrv9
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Have you tried putting 18,16,14 AWG wire in a DSub pin? Not going to happen. I don't know which wire size you use but test it on a pin. I could not get 18 to fit cleanly. Maybe you have LEDs and can use 20awg...
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Wendell VAF#1832
RV-6A 3/4 done...N48JE Reserved 
Build site: www.mykitlog.com/weneng
Donated to VAF in 2020
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06-15-2015, 01:55 AM
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Join Date: Mar 2009
Location: New Zealand, Whangarei
Posts: 51
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I have used MS18029-1s-12 they come in different lengths that you can trim to suit you
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RV7 ZK-DVS
Whangarei
New Zealand
EMS S76 Pilot
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