Thanks Nigel,
I had already completed that part of the wiring to the old design, so a
quick fix was needed!
Brian
----- Original Message -----
From: "nigel charles" <nigelcharles@tiscali.co.uk>
Subject: Re: Europa-List: Europa Club Mod - OV Crowbar Unit
<nigelcharles@tiscali.co.uk>
>
> Hi Brian
>
> Sorry not to get back to you sooner but work and problems getting e-mails
> abroad got in the way.
>
> >Your modified diagram appears to require yet another 5amp circuit breaker
> to
> protect the positive feed to the relay. Surely it is sufficient to take
the
> relay positive feed from the same place as the positive feed for the
crowbar
> unit. The only difference is that the relay is energised when the
> alternator master switch is closed.
>
> Modifying the circuit from the old to the new then becomes a simple
matter
> of moving the positive wires for the crowbar unit and the relay to the
> busbar side of the relay contacts.
>
> Does that make sense?<
>
> Your suggestion does make sense. The latest diagram was done for me by
> Rowland as he has the knowhow to create pdf files and I don't. He just
added
> it to the existing wiring diagram which includes the alternator switch.
> Quite how you arrange the finer points of the wiring is up to you. A
> suggestion I would make (and this is how my aircraft is wired) is not to
> have an alternator switch at all. After all the relay does that job
anyway.
> Although most of us have a panel of c/b's we also have a small fuse box
> (usually mounted in the engine compartment). This is for the 30A
alternator
> fuse, main panel fuse, 1A starter engaged fuse and ammeter fuses if
> appropriate. This fusebox then becomes the distribution point for all the
> high power electrics. This means that the only power coming through the
> firewall is for the panel itself. That way less junctions are required
> between the alternator and the battery. To achieve this you still need a
> seperate low power wire for the relay. It is a bit like having a battery
> solenoid but for the alternator.
>
> I have put this response on the forum as it may interest others but if you
> would like to talk about it in more detail give me a ring on 01380 860620.
I
> will be away from Saturday afternoon until Thursday morning but will be
> around the rest of Thursday and Friday.
>
> Regards
>
> Nigel
>
>
|