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Energizing The System

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Jeff Smith

Joined: 10 Jan 2006
Posts: 9
Location: Knoxville, TN

Posted: Fri May 11, 2007 1:15 am Post subject: Energizing The System

Group,

  

 I'm at the point where I am going to energize my electrical system for  the first time.  Any advice concerning proper way to do  this?

  

 Thanks,

  

 Jeff

  



See what's free at AOL.com. 

  [quote][b]

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khorton01(at)rogers.com
Guest

Posted: Fri May 11, 2007 1:52 am Post subject: Energizing The System

On 11 May 2007, at 05:13, SMITHBKN(at)aol.com wrote:



 	  Quote: 	
		   Group,



 I'm at the point where I am going to energize my electrical system  

 for the first time.  Any advice concerning proper way to do this?




	


If you have not confirmed correct wiring by fully testing each  

circuit when you installed it, then caution is in order.  I would  

remove all fuses and pull all CBs, except for the one for the battery  

contactor.  Power up the system and confirm you have voltage in all  

the right places, and none of the wrong places.  Then power it down,  

and install the fuse or push in the CB for one system.  Fully test  

that system, then repeat for all additional systems.  Doing it one  

system at a time minimizes the chance of damage if there is a major  

wiring foul up.



Kevin Horton         RV-8 (finishing kit)

Ottawa, Canada

http://www.kilohotel.com/rv8

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matronics(at)rtist.nl
Guest

Posted: Fri May 11, 2007 3:50 am Post subject: Energizing The System

If you have access to a decent regulated bench power supply then you may 

want to hook that up instead of the battery. Those power supplies usually 

come with short circuit protection or even a current limit setting. That 

way, if something is wrong, only minimal damage will occur.



Rob

---

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echristley(at)nc.rr.com
Guest

Posted: Fri May 11, 2007 5:26 am Post subject: Energizing The System

Kevin Horton wrote:

 	  Quote: 	

 <khorton01(at)rogers.com>

 On 11 May 2007, at 05:13, SMITHBKN(at)aol.com wrote:

> Group,

>

> I'm at the point where I am going to energize my electrical system 

> for the first time.  Any advice concerning proper way to do this?

>

 If you have not confirmed correct wiring by fully testing each circuit 

 when you installed it, then caution is in order.  I would remove all 

 fuses and pull all CBs, except for the one for the battery contactor.  

 Power up the system and confirm you have voltage in all the right 

 places, and none of the wrong places.  Then power it down, and install 

 the fuse or push in the CB for one system.  Fully test that system, 

 then repeat for all additional systems.  Doing it one system at a time 

 minimizes the chance of damage if there is a major wiring foul up.

At first, this seems like a long and tedious process.  I'm always one to 

just want to plug everything in and see if there are any problems 

first.  Usually, there are and I regret my haste.  What Kevin suggests 

is actually much faster.  Once you go through the individual circuit 

verification process a couple of times, you fall into a pattern and the 

work goes much faster.  When you're done you will have identified any 

possible gremlin, have high confidence in the individual circuits, and 

you will not have gone through the process of troubleshooting 

multi-system interactions to find which one caused the problem.  That 

last step is real dragon that eats all of your time.

The only point I'd like to clarify with what Kevin said is that once you 

verify a system is working properly, pull its fuse before verifying the 

next.  I'd also use the smallest fuse that can possibly operate the 

circuit.  You'll blow a few that way, but they're cheap.  Once all the 

individual circuits are verified, power the fuse block, and add proper 

fuses one at a time to bring each system up.  Then run in the house to 

drag the wife out and say, "Look at what I did!!" (She hates it when I 

do that 8*)

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