Wiring

[ghostlymoron]

I'm replacing my failed diode splitter with a VSR. I attach new and proposed wiring diagrams. There are 2 ways I am considering - my preferred is to go Alternator to Starter to main switch which is a lot easier physically. Can anyone see why this would not work?
<a href="http://s496.photobucket.com/albums/rr330/ghostlymoron/?action=view&current=Newwiring.jpg" target="_blank"><img src="http://i496.photobucket.com/albums/rr330/ghostlymoron/Newwiring.jpg" border="0" alt="Boat wiring - new"></a>
<a href="http://s496.photobucket.com/albums/rr330/ghostlymoron/?action=view&current=Oldwiring.jpg" target="_blank"><img src="http://i496.photobucket.com/albums/rr330/ghostlymoron/Oldwiring.jpg" border="0" alt="Boat wiring - old"></a>
Hope the links work

 

[lenseman]

 

[halcyon]

Yes, but

Why the links to live side of switch ?

Why two links to alternator, both sides of isolator switch.

Did you mean to leave it live ?

If you leave live, have you circuit protection ?

Brian

 

[ghostlymoron]

Firstly, thanks David for posting the diagrams properly. (I am living up to my pseudonym!)
The 2 links are marked as 'alternatives' on the diagram but the lettering has come out a bit small. The wiring diagram I have with the VSR shows the connections to the battery side of the switches and this was confirmed by the electrical shop that sold it to me.

 

[Ian_Edwards]

Hi,
Since I haven’t seen a direct answer to your question, here’s my view. Both option would work, option 1 would be better, the alternator is always connected to a load and it won’t see any spikes or transients which are generated by the starter motor, quite as badly as option 2. It also minimises the number of connection (resistance and potential problems) between the alternator and the batteries.
With option 2 there is a possibility of switching off both batteries whilst the engine is running, leaving the alternator without a load .... not generally considered to be a good idea.