Next message: (no name): "Re: lv-ab: Re: Nav Lights"
The spreader lights that I use draw 3 amps (12v) apiece. If you have four of
these on plus the anchor or running lights, you're talking about at least a
13-14 amp draw. If this is the case, I would suggest using a heavier gage
wire. I'm flying between Boston and Detroit as I write this, so I don't have
access to my voltage drop tables, but I would size the wire for no more than
a 10% voltage drop (and I'm fairly sure 14 gage is too small for that).
I can see using the relays if you're especially concerned about weight aloft,
but if it were me, I'd prefer to have separate wires. Separate circuits
would be easier to troubleshoot and work on, I'd think. The extra weight
wouldn't amount to all that much, IMO.
JP
In a message dated 9/16/01 8:19:59 PM Atlantic Daylight Time,
writes:
<< OK, Here goes.
At the top of the mast:
Anchor light, 6" below that RED all-round light, 4' below
that GREEN all-round light.
Wind instruments. ( I cannot see a 'windex' )
6 db. gain VHF antenna.
AT the spreaders:
2 flood lights pointed toward the forward deck
2 flood lights pointed toward the aft deck
2 12 volt LOUD horns
6 solid state relays to control :
1. The anchor light
2. The horns
3. The foredeck lights
4. The afterdeck lights
5. The steaming light
6. The Red over Green Nav light.
1 4 AWG Red wire up to the spreaders to provide power for
all the above.
1 4 AWG Black wire to provide ground for all of the above.
Comments?
Eric Thompson
S/V Procrastinator
South San Francisco
>>
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