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Adding a Fuse Block

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rv6a(at)rogers.com
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Posted: Fri Nov 23, 2018 6:57 am Post subject: Adding a Fuse Block

Hi Bob



I have been flying my RV6A for nearly ten years using your Z-11 wiring system..  This system has worked extremely well.  I am currentlyin the process of adding a second radio and audio panel, but have run out of useable tabs on my main & endurance busses.  I have a “four fuse” fuse block that I would like to add to the main buss.  If I mount the extra fuse block within six inches of the main bus, can I power it from the main bus power terminal via an unfused #16 wire?  The alternative would be to free up a tab on the main bus, run a fused wire from the tab and then move that consumer to the new fuse block.  



Appreciate you advice.

Thanks,

John

RV6A



Sent from my iPhone

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user9253

Joined: 28 Mar 2008
Posts: 1921
Location: Riley TWP Michigan

Posted: Fri Nov 23, 2018 7:46 am Post subject: Re: Adding a Fuse Block

 	  Quote: 	
		  can I power it from the main bus power terminal via an unfused #16 wire? 	


Yes, that is what I would do.  Just make absolutely sure that #16 wire has no chance of shorting out.

Support it well near the terminations and double insulate it if it will help.

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_________________
Joe Gores

ceengland7(at)gmail.com
Guest

Posted: Fri Nov 23, 2018 1:59 pm Post subject: Adding a Fuse Block

Why not use the same size wire that feeds the main bus? 16 ga significantly limits the total carrying capacity of the added bus, and could bite you or future maintainers if a couple of high load devices get added to the new block.

 Charlie

 On Nov 23, 2018, at 10:05 AM, John Crate <rv6a(at)rogers.com (rv6a(at)rogers.com)> wrote: 	  Quote: 	
		    	  Quote: 	
		  --> AeroElectric-List message posted by: John Crate <rv6a(at)rogers.com>Hi BobI have been flying my RV6A for nearly ten years using your Z-11 wiring system..  This system has worked extremely well.  I am currentlyin the process of adding a second radio and audio panel, but have run out of useable tabs on my main & endurance busses.  I have a “four fuse” fuse block that I would like to add to the main buss.  If I mount the extra fuse block within six inches of the main bus, can I power it from the main bus power terminal via an unfused #16 wire?  The alternative would be to free up a tab on the main bus, run a fused wire from the tab and then move that consumer to the new fuse block.  Appreciate you advice.Thanks,JohnRV6Ahttp://www>http://www.matronics.com/contribution

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nuckolls.bob(at)aeroelect
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Posted: Sat Nov 24, 2018 2:33 pm Post subject: Adding a Fuse Block

At 08:56 AM 11/23/2018, you wrote:

  	  Quote: 	
		  --> AeroElectric-List message posted by: John Crate <rv6a(at)rogers.com>



 Hi Bob



 I have been flying my RV6A for nearly ten years using your Z-11 wiring system..  This system has worked extremely well.  I am currentlyin the process of adding a second radio and audio panel, but have run out of useable tabs on my main & endurance busses.  I have a “four fuse” fuse block that I would like to add to the main buss.  If I mount the extra fuse block within six inches of the main bus, can I power it from the main bus power terminal via an unfused #16 wire?  The alternative would be to free up a tab on the main bus, run a fused wire from the tab and then move that consumer to the new fuse block. 	


   Yes . . . just tie the two busses

   together by-the-bolts with a short

   pieces of wire. #16 would be okay;

   you really won't be tying much load

   onto the new bus.



 

 

   Bob . . .

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nuckolls.bob(at)aeroelect
Guest

Posted: Sat Nov 24, 2018 2:35 pm Post subject: Adding a Fuse Block

At 03:50 PM 11/23/2018, you wrote:

  	  Quote: 	
		  Why not use the same size wire that feeds the main bus? 16 ga significantly limits the total carrying capacity of the added bus, and could bite you or future maintainers if a couple of high load devices get added to the new block.' 	


 Recall that except for voltage drop

 considerations, 22AWG under Tefzel

 doesn't get into trouble at 20A.



 16AWG is 4x the cross section of 22AWG.

 It would be quite sufficient over the

 distance cited.



 

 

   Bob . . .

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rv6a(at)rogers.com
Guest

Posted: Mon Nov 26, 2018 4:52 am Post subject: Adding a Fuse Block

Thanks to all who replied.  Much appreciated.



John

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