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

RV-8 wiring diagram

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

tnikkel

Joined: 11 Jun 2017
Posts: 2

Posted: Tue Jun 13, 2017 4:01 am Post subject: RV-8 wiring diagram

Currently starting the wiring on the RV-8 I am building. Attached is the diagram for the main power and charging system. I would like a second opinion to make sure I have not made a mistake. Ignore the avionics bus that's planning for the future if I ever add that. The wiring from the circuit breakers is all sized properly. The battery is mounted behind the rear baggage in the aft part of the airplane.

- 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

N285TS Power.bmp

Description:

Filesize:

385.31 KB

Viewed:

6681 Time(s)

Last edited by tnikkel on Tue Jun 13, 2017 4:54 pm; edited 1 time in total

user9253

Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan

Posted: Tue Jun 13, 2017 6:31 am Post subject: Re: RV-8 wiring diagram

It seems that some of the feeders are larger than necessary and could be smaller by one or two wire sizes.

Can the main power bus feeder be smaller?

Can the E-Bus feeder be smaller?

The E-Bus bridge diode only needs one wire feeding it, not two.



If the E-Bus switch is inadvertently left on during engine start, the aux battery will help crank the engine and could trip its circuit breaker.  That problem can be eliminated by connecting the output of the E-Bus relay to one of the inputs of the bridge diode.



Having an engine start button on the control stick could be dangerous.  Is it really necessary?



An avionics switch is a single point of failure.  Evidently it happened in Ron Simonton's RV.  Read his post: http://www.vansairforce.com/community/showpost.php?p=1167360&postcount=7

- 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

_________________
Joe Gores

tnikkel

Joined: 11 Jun 2017
Posts: 2

Posted: Wed Jun 14, 2017 6:19 am Post subject: Re: RV-8 wiring diagram

Thanks for your comment i appreciate the feed back.

Some of the feeders are bigger than they need to be but that's the wires I have. I see the downsides of having the start switch on the yoke but i do want it there. I have an enable switch which disarms the switch on the yoke. The enable switch also disconnects the e-bus during start.

- 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

user9253

Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan

Posted: Wed Jun 14, 2017 8:29 am Post subject: Re: RV-8 wiring diagram

OK, I overlooked the switch that isolates the E-Bus during engine start.  Your wiring diagram looks OK to me.

 	  Quote: 	
		   The enable switch also disconnects the e-bus during start.

- 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

_________________
Joe Gores

dilsonfrota(at)gmail.com
Guest

Posted: Thu Jun 15, 2017 1:28 am Post subject: RV-8 wiring diagram

Hi Joe



Have you considerate to use EXP BUS, instead of discrete circuit breakers?

I use them, they are very reliable.

Advantages are it provide circuitry for the second battery, not so expensive and much less wiring.

I'm not a representative  😄

I'm sorry if I throw you in another direction, but I think it's worth at least to give a thought.

Regards 

Dilson

Em 14 de jun de 2017 13:37, "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)> escreveu: 	  Quote: 	
		  --> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)>

 

 OK, I overlooked the switch that isolates the E-Bus during engine start.  Your wiring diagram looks OK to me.

 

 >  The enable switch also disconnects the e-bus during start.

 

 

 --------

 Joe Gores

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=470114#470114

 

 

 

 

 

 

 ====================================

  -

 Electric-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

 ====================================

  FORUMS -

 eferrer" target="_blank">http://forums.matronics.com

 ====================================

 WIKI -

 errer" target="_blank">http://wiki.matronics.com

 ====================================

 b Site -

           -Matt Dralle, List Admin.

 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

 ====================================

- 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

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