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Richard(at)talbots.net.au
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 Posted: Tue Nov 06, 2007 12:20 pm Post subject: Battery Bus Feed |
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Hi Everyone,
One more question in relation to my Battery Bus. I am following Z-13 and adapting to my aircraft in a few places. One of these is in relation to the Battery Bus feed. I note that the drawing specifies a short run (6 inches or less) of 14 AWG wire from the positive side of the battery to the fuse block. My issue is that I am going to exceed the recommended wiring distance to around 3-4 feet and would feel more comfortable with some protection for the wire. As I see it my choices are:
<![if !supportLists]>- <![endif]>Install an inline fuse holder in the engine compartment, near the battery.
<![if !supportLists]>- <![endif]>Install a fusible Link.
<![if !supportLists]>- <![endif]>Relocate the fuse block (I don’t want to do this)
I suspect the fusible link is a better option but I wanted to get some advice from other members of the list.
If I use a fusible link how do I size it? Should it be 2AWG smaller than the wire?
Thanks/Regards
Richard
[quote][b]
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nuckolls.bob(at)cox.net
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| Posted: Tue Nov 06, 2007 7:41 pm Post subject: Battery Bus Feed |
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At 07:18 AM 11/7/2007 +1100, you wrote:
| Quote: | Hi Everyone,
One more question in relation to my Battery Bus. I am following Z-13 and
adapting to my aircraft in a few places. One of these is in relation to
the Battery Bus feed. I note that the drawing specifies a short run (6
inches or less) of 14 AWG wire from the positive side of the battery to
the fuse block. My issue is that I am going to exceed the recommended
wiring distance to around 3-4 feet and would feel more comfortable with
some protection for the wire. As I see it my choices are:
- Install an inline fuse holder in the engine compartment, near the
battery.
- Install a fusible Link.
- Relocate the fuse block (I don t want to do this)
|
If it's not next to the battery, then it's
not a battery bus but an always-hot bus.
There are reasons for the published
recommendations based on about 70+ years
of aviation experience. But it is your
airplane and nobody here should be trying
to convince you to do something that is
not also supported by your understanding.
| Quote: |
I suspect the fusible link is a better option but I wanted to get some
advice from other members of the list.
If I use a fusible link how do I size it? Should it be 2AWG smaller than
the wire?
|
Use a fuse here. It needs to be as responsive
as practical to overload/fault conditions. Fuses
are the device of choice.
Bob . . .
----------------------------------------
( "Problems are the price of progress. )
( Don't bring me anything but trouble. )
( Good news weakens me." )
( -Charles F. Kettering- )
----------------------------------------
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