REFLECTOR: Electrical system - basic components

[Reiff Lorenz]

Chris, It's always good to check the basics! Yes I have the Nuckolls book. Read it twice. It is great on theory, but short on "buy this, put it here" recommendations. The Reflector is great for finding out what is actually working for others, or hearing stories of "tried X but it found out Y was better."

Larry, I believe the Vertical Power does eliminate the power bus for most things. There are a few, though, that will still need a connection outside of the VP. Between the starter contactor, the RG pump, and my 4 seat heaters (wife's requirement), I have more high-draw components than the VP has high-capacity circuits. (Maybe more than my alternator(s) will supply, but that's a problem for another day!) So some type of power bus (and maybe an essential bus) will be necessary. Plus, the VP doesn't handle grounding.

I'm OK on the electrical planning. Currently I'm just not sure which power/ground block to buy/make and where to mount it. What type of buses did you use? Where did you mount them?

Reiff


From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Chris Barber
Sent: Saturday, June 29, 2013 1:46 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Electrical system - basic components

May be too basic to mention but have you read the Aeroelectric Connection by Bob Knuckles available for download at http://www.aeroelectric.com along with all sorts of other information


Chris

Sent from my iPhone 5

On Jun 29, 2013, at 11:01, "Lawrence Epstein" <ljepstein at hotmail.com<mailto:ljepstein at hotmail.com>> wrote:
If you are using the VP unit, I don't believe you need a "bus bar" or similar, as everything will have it's power lead going to the VP.

Take a look at the VP website. They have a whole section on planning your electrical system, complete with sample circuit diagrams.

Also, EAA website has a good overview (PDF) which you should read.

Larry Epstein

On Sat, Jun 29, 2013 at 11:19 AM, Brian Michalk <michalk at awpi.com<mailto:michalk at awpi.com>> wrote:
It's not hard to build your own, or you can buy something like this:

http://www.bandc.biz/groundblock48-tab.aspx



On 06/29/2013 08:55 AM, Reiff Lorenz wrote:

I'm starting work on the electrical system. I could use some recommendations on what to purchase (or how to make) these items and where you installed them:


*         Main bus

*         Main ground block

*         Firewall ground block

*         Avionics ground

I'm going to use the Vertical Power system for switching & circuit breakers so a combination bus/CB system won't be necessary. Should I just buy some copper bar and drill screw-holes in it? Is there a good, basic bus product that works well? Where did you mount it and how did you protect the power buses from accidental grounding?

Thanks!


Reiff Lorenz, Dayton, OH
Velocity XL-RG, 45% complete
Currently working on: Mounting the battery, main contactor, starter contactor, and RG control system.

Velocity Owners and Builders Association
http://www.VelocityOwners.com




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