Today's Message Index:
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1. 09:04 AM - Wire Size for Wing Lighting (Jerald Folkerts)
2. 09:46 AM - 1 Wire vs. 3Wwire alternators (cdnch701)
3. 11:28 AM - Re: Wire Size for Wing Lighting (Robert L. Nuckolls, III)
4. 11:30 AM - Re: 1 Wire vs. 3Wwire alternators (Robert L. Nuckolls, III)
Message 1
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| Subject: | Wire Size for Wing Lighting |
I'm getting ready to close the right wing on my Murphy Super Rebel build and
need to run the wires for my lights. I have two Whelan PLED 1L landing
lights in a Grimes fixture, each pulls 1.2 Amps. I'm using LED position
light replacement bulbs from PSA Enterprises, LED7STPL-12V in a standard
Grimes position light fixture, each pulls less than .2 amps. Based on my
reading/understanding of wire selection in the Aero-Electric Connection, I
should be able to use 22 awg for each light - correct? That said, is there
a reason to use heavier wire, i.e. 18 or 20 awg in case something changes in
the future?
Thanks,
Jerry Folkerts
SR #093
www.mykitlog.com/jfolkerts/
Message 2
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| Subject: | 1 Wire vs. 3Wwire alternators |
I need some help here with alternators! What is the difference between a 1 wire
and a 3 wire
system?
Can a 1 wire setup be shut down with a switch as per over voltage protection...
or does it have
to be a 3 wire?
Thanks
Ron
Message 3
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| Subject: | Re: Wire Size for Wing Lighting |
At 11:00 AM 11/22/2011, you wrote:
>Im getting ready to close the right wing on my
>Murphy Super Rebel build and need to run the
>wires for my lights. I have two Whelan PLED 1L
>landing lights in a Grimes fixture, each pulls
>1.2 Amps. Im using LED position light
>replacement bulbs from PSA Enterprises,
>LED7STPL-12V in a standard Grimes position light
>fixture, each pulls less than .2 amps. Based on
>my reading/understanding of wire selection in
>the Aero-Electric Connection, I should be able
>to use 22 awg for each light correct?
Yes
>That said, is there a reason to use heavier
>wire, i.e. 18 or 20 awg in case something changes in the future?
Your option . . . but going back seems to be
about as likely a move as putting inner tube
tires on your car.
Bob . . .
Message 4
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| Subject: | Re: 1 Wire vs. 3Wwire alternators |
At 11:43 AM 11/22/2011, you wrote:
>
>I need some help here with alternators! What is the difference
>between a 1 wire and a 3 wire
>system?
I'm not sure there's a uniform convention for
1 versus 2 versus 3 wire alternators. The
1-wire alternators I see for boats, RVs and
utility vehicles have regulators built in. They
have ONE b-lead that connects to the system and
they automatically shut down internally when
the alterantor is not turning.
>Can a 1 wire setup be shut down with a switch as per over voltage protection
No
>... or does it have
>to be a 3 wire?
It certainly needs to have more than one wire, the
second of which offers absolute control over field
excitation. Check out B&C or Plane Power. They've
provided for satisfaction of the legacy philosophy for
putting alternators on airplanes.
Bob . . .
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