nuckollsr(at)cox.net
Guest
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 Posted: Thu Apr 12, 2007 5:22 am Post subject: What about an electronic distribution panel? |
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At 11:27 PM 4/11/2007 -0700, you wrote:
| Quote: | I am building a Zenith 701 with a Rotax 912ULS engine and would like to
have opinions about using a commercial panel power distribution system
like EXP Bus Products EXP2V (see
<http://www.aircraftspruce.com/catalog/elpages/expbus.php>http://www.aircraftspruce.com/catalog/elpages/expbus.php)
. My plane will have the normal electrical stuff: landing lights, radios,
intercom, Dynon glass cockpit instruments, nav and strobe lights, VHF and
Mode C radios, an EZ single axis autopilot, and a few lighted steam gauges.
I know aeroelectric says keep it simple and use switches rather than
breakers, but I don t have a lot of room left on my panel and this "box"
looks easy to install and flashes indication that a breaker has been
tripped (with an indicator module option).
Do you know if this device provides for an essential buss or will isolates
a bad generator? Is this overkill? Are there specific up or downsides I
need to know about? Is it a good way to go?
Thanks for the advice,
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Products like this PRE-design your electrical
system not only with a selection of hardware but
they establish the architecture as well. What you
see is what you get. If there's a feature you don't
need, it's not an easy option to eliminate it.
If there's a feature you want that is not offered,
it's not easy (or neat) to add.
When it comes time to do repairs in the future,
any repair needed to one of these assemblies will
be more arduous than for the simple row of switches
and associated hardware for which you posses some
personal understanding.
Finally, consider the cost. For the price of these
products, you can pretty much purchase ALL the switches,
wire, contactors, fuse blocks and then form them into
architecture and features that exactly meet your needs.
The only advantage for choosing the pre-fabricated
route is perhaps a savings of having to make some
decisions and acquire understanding. The price for
this relief may result in a system that is less than
the best we know how to do and will ultimately have
a higher cost of ownership.
Go to http://aeroelectric.com and do a search on
"exp-bus". There have been a number of detailed
discussions on this topic in past years.
These products probably perform as advertised.
This isn't an issue of functionality or safety.
It is an issue of how much command and control
of your destiny you're willing to hand over to
a pre-fab shop and how much you're willing to pay
them to take that command and control.
Bob . . .
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( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
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