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Europa-List: Relay to act as kill switch

Subject: Europa-List: Relay to act as kill switch
From: Tony Renshaw <tonyrenshaw268@gmail.com>
Date: Fri, 18 Jun 2010 14:30:49

Gidday,
I am electron averse. They take on personalities whenever I interact, and most
often I think they are female. Suffice to say, they do what they want to, and
change their minds! So, I'd like to kill them off from my aft mounted battery.
I am planning a kill switch in the passenger headrest area, but was wondering
running a single Rotax alternator if anyone has advice on whether I could run
a "relay" that would isolate the large battery voltage with a small charge via
a panel mounted switch? Rather than a big kill switch like the great one Bob
Borger is using from Flaming River
http://www.flamingriver.com/index.cfm/page/ptype=product/product_id=64/category_id=133/home_id=231/mode=prod/prd64.htm
is there another way of achieving this same goal? I suppose in the case of a 
crash
it would mean that you would have voltage still coming forward of the relay
to the switch, on the panel, but it would be small and could be choked to be
of low amperage? couldn't it? That way a short would kill a fuse and not create
a large spark as a source of ignition. Would it be possible then to wire the
relay such that when it was isolated, it would also turn off the power forward
of it to operate the relay too, so that there would be "NO" power coming 
forward?
I suppose then the switch would become useless at turning power back on,
so maybe a relay could be used in another way? 
Is there any point in being able to isolate....kill off alternator voltage ?? 
I'm
not sure if the Rotax alternator has an inbuilt function or whether its voltage
must be monitored by such a device if included, prior to the battery. Is
this the right idea for setting up the alternator circuit? 
Reg
Tony Renshaw
P.S. I apologise if this is covered in the manual, however I am away from the 
book
for a few days with work, and am crunching away these ideas remotely. 



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