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wiring from battery to starter
Hello,
i need to replace the wiring from the battery to the starter. its now 10mm˛ its to thin wat is the best for using ? the distance is aprox 5 meters wil 35mm˛ do ? or do in need 50mm˛ -- ascii to ascii dos to dos Greetz Bassie |
wiring from battery to starter
how much current does your starter draw?
Dennis |
wiring from battery to starter
Does your battery have to be that far away?
"sprokkie" wrote in message .nl... Hello, i need to replace the wiring from the battery to the starter. its now 10mm˛ its to thin wat is the best for using ? the distance is aprox 5 meters wil 35mm˛ do ? or do in need 50mm˛ -- ascii to ascii dos to dos Greetz Bassie |
wiring from battery to starter
10 sq mm is pretty huge. That's almost 18 mm in radius or 36 mm
in diameter. What makes you feel it is not big enough? Doug s/v Callista "sprokkie" wrote in message .nl... Hello, i need to replace the wiring from the battery to the starter. its now 10mm˛ its to thin wat is the best for using ? the distance is aprox 5 meters wil 35mm˛ do ? or do in need 50mm˛ -- ascii to ascii dos to dos Greetz Bassie |
wiring from battery to starter
"Den73740" schreef in bericht ... how much current does your starter draw? Dennis i dont know, it for starting a farrymann diesel engine -- ascii to ascii dos to dos Greetz Bassie |
wiring from battery to starter
"Figment" schreef in bericht ... Does your battery have to be that far away? yes that is where the battery is located, the engine is in the front off the boat and uses hydrolic's for trunign the propellor "sprokkie" wrote in message .nl... Hello, i need to replace the wiring from the battery to the starter. its now 10mm˛ its to thin wat is the best for using ? the distance is aprox 5 meters wil 35mm˛ do ? or do in need 50mm˛ -- ascii to ascii dos to dos Greetz Bassie |
wiring from battery to starter
According to the handy-dandy wire sizing chart in the West Marine
catalog: 1. Sprokkie asks if 35 sq. mm. wire is adequate, and the chart shows that AWG (American Wire Guage, for Sprokkie's benefit) number 2 is 33.62 sq. mm. So, lets see what AWG 2 wire will do. 2. Again, according to the chart, AWG 2 will carry 210 Amps a maximum of 34 feet, or approximatley 10 meters, with a 10 percent voltage drop. The 10 meter figure is "ROUND TRIP" distance. That means the TOTAL distance from the battery, through any disconnect switches, to the starter, and from the engine block (the starter is grounded to the engine block) back to the battery. Sprokkie says the battery is 5 meters from the starter, so the "round trip" should not be over 10 meters. 3. A 10 percent voltage drop is not unreasonable for a starter circuit. That would provide 10.8 volts (12 volts minus 1.2 volts) at the starter, assuming the 210 Amp load. It also assumes that the battery is pretty low since the battery would normally provide about 13.7 volts or so if it were in good condition and freshly charged. So what is the conclusion? I don't know how much current the the Farrymann (sp?) starter draws. If I remember correctly, that engine is a pretty small diesel and the starter would not likely draw more than 210 amps, so 35 sq. mm. wire should be more than adequate. I think 50 sq. mm. would be overkill, but not undesirable if cost of the wire is not a factor. Hope this helps a bit... Ed Greeley |
wiring from battery to starter
Can't you reduce the length by putting the Start battery up the front with
the engine? "sprokkie" wrote in message l... "Figment" schreef in bericht ... Does your battery have to be that far away? yes that is where the battery is located, the engine is in the front off the boat and uses hydrolic's for trunign the propellor "sprokkie" wrote in message .nl... Hello, i need to replace the wiring from the battery to the starter. its now 10mm˛ its to thin wat is the best for using ? the distance is aprox 5 meters wil 35mm˛ do ? or do in need 50mm˛ -- ascii to ascii dos to dos Greetz Bassie |
wiring from battery to starter
Doug
Check your calcs, you're a factor of 10 out, I make it 3.6mm dia. Brian "Doug Dotson" wrote in message ... 10 sq mm is pretty huge. That's almost 18 mm in radius or 36 mm in diameter. What makes you feel it is not big enough? Doug s/v Callista "sprokkie" wrote in message .nl... Hello, i need to replace the wiring from the battery to the starter. its now 10mm˛ its to thin wat is the best for using ? the distance is aprox 5 meters wil 35mm˛ do ? or do in need 50mm˛ -- ascii to ascii dos to dos Greetz Bassie |
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