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Hook up wire

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Ianrat

Joined: 31 Mar 2008
Posts: 43
Location: Brisbane AUSTRALIA

Posted: Sun Aug 31, 2008 3:39 am Post subject: Hook up wire

Trying to wire up my 601. 



What gauge wire should I use on things like the fuel senders. I was considering using 20G. I will be using 18G for things like lights that draw a bit of power.



Thank you.

Ianrat

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larry(at)macsmachine.com
Guest

Posted: Sun Aug 31, 2008 5:17 am Post subject: Hook up wire

Hello Ianrat,

The gage I used was predominantly 16G Tefzel for everything, with 

exception to 22G for gages and panel lights.



Larry McFarland 601HDS at www.macsmachine.com

do not archive



Ianrat wrote:

 	  Quote: 	
		   



 Trying to wire up my 601. 



 What gauge wire should I use on things like the fuel senders. I was considering using 20G. I will be using 18G for things like lights that draw a bit of power.



 Thank you.

 Ianrat





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 1769#201769

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amyvega2005(at)earthlink.
Guest

Posted: Sun Aug 31, 2008 5:39 am Post subject: Hook up wire

you will get humming from the alternator so use shielded plugs , plug wires, and get a toriodal coil noise suppressor right to the back of the radio.   The biggest is grounding.  check all your grounds,  My lights turned on caused voltage to course through the plane and I could hear it in the radio. once off the noise went off.   

juan



--

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amyvega2005(at)earthlink.
Guest

Posted: Sun Aug 31, 2008 5:39 am Post subject: Hook up wire

you will get humming from the alternator so use shielded plugs , plug wires, and get a toriodal coil noise suppressor right to the back of the radio.   The biggest is grounding.  check all your grounds,  My lights turned on caused voltage to course through the plane and I could hear it in the radio. once off the noise went off.   

juan



--

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bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Sun Aug 31, 2008 1:16 pm Post subject: Hook up wire

Heres an excel file you might find useful: http://www.rst-engr.com/rst/jimsdata/index.html 

  Click on "Wire Table".



A good rule of thumb is to size the wire for no more than a 3% (about  

half a volt for a 14V system) voltage drop over the length of the wire  

at the maximum current the circuit will see and use a fuse or circuit  

breaker that will allow no more than about a 20C temperature rise at  

its rated current.



Here's another chart that might be useful: http://home.hiwaay.net/~langford/wiresize.html

This data in this chart looks about right to me.



20 gauge wire will work fine for the fuel senders. 18 gauge will  

probably work for the nav lights if the current is not much more than  

5 amps. The 3% voltage drop rule isn't too critical for simple  

lighting circuits.



Personally I would use 16 gauge for most of the lighting circuits and  

power feeds and use the smaller stuff for wiring up signal lines in  

the panel and audio circuits. Halogen type landing lights will require  

at least a 12 gauge wire due to the long run and high current. Some of  

your gauges might require a relatively large ground wire (16 gauge or  

so) to minimize the voltage drop to ground for better accuracy.



I ran most of my ground wires to a common terminal block adjacent to  

the point where the main battery ground was located. This helps to  

reduce the chance of noise in the audio circuits.



On Aug 31, 2008, at 7:39 AM, Ianrat wrote:



 	  Quote: 	
		   



 Trying to wire up my 601.



 What gauge wire should I use on things like the fuel senders. I was  

 considering using 20G. I will be using 18G for things like lights  

 that draw a bit of power.



 Thank you.

 Ianrat


	


-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

do not archive.

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_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.

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