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So, how long do these surveys last? Or is it just because of an Insurance co change?
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Grand old log 5knota all the usual trimmings, oozes past adventure and old world charm, and with new fangled colour cordinated isolating switches!
Um, do they make em half red and half black for the ultimate single throw DP? Guaranteed to solve your loops.
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Are we talking about fuses or isolation switches?
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Double pole single throw, switch that functions as name implies.
After toing and froing I decided three +ve switches on the three batteries in two banks, and two -ve automatic voltage/current/temperature sensitive switches on the LiFePO4 right next to the -ve post courtesy of bms’s was enough isolation for me and I considered it done. The start battery -ve post could do with one to be consistent but seeing as cars are permanently wired to starter motor without any isolation switch and have multiple earth paths I don’t think I can be bothered. Lithium is another level or two of paranoia though.m2cw
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But then shutting the motor off gives us a rush of feel goods. Just how do you put a dollar value on that? Motoring is like the dentist, or a prostate check; one of those unpleasant necessities. If you want to reach certain point in a certain time, you need to tolerate using your motor. Very occasionally I love my motor and am thankful for its unceasing reliability but mostly I’d prefer it to be barely seen and definitely not heard. Charging my batteries has nothing to do with the smelly, noisy motor, it’s the alternator. Quiet, powerful, and very humble. You didn’t know that?
Conversely When I get a new sail I feel like a kid with a new toy an cannot stop admiring it. Do I have a problem?
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Changed my galv bolts out for 2205 ss in 2010. A couple of the galv were wasted.
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Second that. Required grid survey, but no gas cert , only a sniffer which I already had. Never got around to the gas solenoidinstall.
Guess it somewhat universal, the differing standards that are applied. Just as long as the survey is what you've got and the Insurance co accepts it you have got
to be covered.
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Exactly what is the wording on Aus/Nz std? Meaning HV/LW audible warning at a cellular level Or// at a battery level? Not so subtle electrical diff. Obviously cellular is better imo.
Pretty easy to add a BMV712 and get an audible warning. Also utilise mid point take off. And if you dont like the 712 volume (low) use the relay with a louder one. Or, the offender at a cellar level is easily identified & monitored with a voltage sensitive configurable relay to a piezo. $20. Same cell wins the race in both batteries every time, not by much. But its really consistent thanks to Mr Ohm and the chemistry/ manufacture QC. If a different cell Sh*ts itself then you are relying on battery monitor setting audible warning. Having a switching BMS would be preferable to putting one on each cell. (VSR)
Not hard to run some tests with bms cutting off charge /discharge, check battery Voltage and allow delta for BMV setting for alarm. Of course this means a battery monitor with relay & bms for each battery . Still more economical than Rec, electrodacus etc and contactors x N. Don't see how they can demand it be auto.
Personally I prefer simplicity, and do the switching myself. Point is, does this level meet the std? I am not doing it for a job, DIY personal, so it doesn't matter i guess.
Batteries= cells in series with own BMS. Bank = paralleled batteries output same voltage, twice Ahrs. (only for the confused)
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Sorry all gone. Six went in matter of hours
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2 from 4 left.
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1 hour ago, Frank said:
For those pondering a LiFEpo retrofit the battery, 3 KW Inverter, DC to DC charger, Solar Controller, and associated components are under the fwd end of the RH bunk in the photo. The space it occupies is modest and would easily be accommodated In a small yacht. The DC to DC charger is on the Bunk Front but has yet to Kick in (18 months ) as solar has been sufficient (440W of Solar on the roof)
The DC-DC (30A?) is from FLA start battery to LiFePo4 right? What controls that kicking in? I have a victron DC-DC to do opposite as Li is charged from alternator at this stage and also have used it as I charge my Li at 14.2V via Argofet, which seems to keep the start battery up. Nice little induction hob!
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With induction cook top I guess you could run the motor when in use to alleviate loss to battery. Still need 75m^2 to inverter tho. 2Kw for 15min is 40ish Ah, correct? Not allowing for invertor losses, and @12.8V
When is the target extinction date for LPG?
Ideal pole length for non overlapping jib
in TechTalk
Posted
Looking forward to someone learned chiming in too, perhaps with factor x foot. Our outboard end of Al/wood end pole exploded in Colville channel with #2 which is a lapper. #1 needs a longer pole of course.
Sleeved with glass and rescrewed albeit a bit shorter now.
Funny how things become amazing clear after the event, especially recovery tactics, under too much canvas.