donn0128
Pronounced Ore-gun
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wny_pat wrote:I know just enough about electric to be dangerous, so I will defer if I am wrong.
But why not mount the inverter much closer to the battery (not in the battery compartment cause you don't want spark there) and run romex to where ever you want your outlet to be?
Basically because romex is not suitable for this situation. Nor is it capable of carrying the amperage required for an inverter at full load. The OP will need at minimum (0) wire and preferably (00) wire for a run of more than a couple of feet. And last I checked that stuff is close to 5 dollars a foot.
Donn,Lorri,Max (rescued Lab)
Saigon International Airport 1966/67
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2oldman
Moses Lake
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donn0128 wrote:Basically because romex is not suitable for this situation. Nor is it capable of carrying the amperage required for an inverter at full load. wny_pat means Romex for the 120v side.
* This post was
edited 02/08/12 11:05am by 2oldman *
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wny_pat
Western NYS
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2oldman wrote:donn0128 wrote:Basically because romex is not suitable for this situation. Nor is it capable of carrying the amperage required for an inverter at full load. wny_pat means Romex for the 120v side. That is what I was thinking and how I thought others would take it. Romex on the 120v side. Thanks Chris!
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fltioga89
oviedo, fl.
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Joined: 01/19/2011
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i wish i could find a place to put the inverter thats closer to the battery but there just isnt any extra space in this class c. now im thinking about trying to fit another (2nd one) house battery in with the inverter where the water pump , and the water heater sit under the dinnette seat. i might be able to fit a small battery in there and use a sealed up case and run a vent.
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pianotuna
Regina, SK, Canada
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Hi fltioga89,
I put the inverter on the wall behind the driver's seat. It was waste space essentially.
fltioga89 wrote:i wish i could find a place to put the inverter thats closer to the battery but there just isnt any extra space in this class c. now im thinking about trying to fit another (2nd one) house battery in with the inverter where the water pump , and the water heater sit under the dinnette seat. i might be able to fit a small battery in there and use a sealed up case and run a vent.
Regards, Don
Kustom Koach Class C 28'5" 256 watts solar, 875 amp hours in two battery banks 12 volt batteries 2500 watt inverter.
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E&J push'n wind
San Diego CA, The best climate on earth!
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pianotuna wrote:Hi fltioga89,
8 feet and 120 amps when the inverter is running flat out. This is a bad idea. Here is why.
Solution:
1 conductor(s) per phase utilizing a 1/0 kcmil Copper conductor will limit the voltage drop to 1.98% or less when supplying 120 amps for 8 feet on a 12.6 volt system.
Pianotuna, help me out please? Am I over looking something, how do you get 120 amps from a 1K inverter if P/E=I? Seems to me that a 1K inverter at max output would only draw a little more than 8 amps, not quite 9. What am I missing, do you calculate the draw that an inverter makes differently?
Wisdom is the right use of knowledge. To know is not to be wise. Many men know much, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.
Charles Haddon Spurgeon
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pianotuna
Regina, SK, Canada
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Hi,
Watts = Volts X amps
1000w = 120 V x 8.3 amps
1000w = 12 v X 83.3 amps
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E&J push'n wind
San Diego CA, The best climate on earth!
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pianotuna wrote:Hi,
Watts = Volts X amps
1000w = 120 V x 8.3 amps
1000w = 12 v X 83.3 amps
O.K., Got it, I forgot that's from a 12v source not 120vAC. Thank you.
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Cedarhill
Deep South
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Don't even think about mounting your inverter under the hood. In the automotive industry, electronics mounted under hood are designed to function at 105C or 125C. The requirement is there for a reason. There is very little chance that an off-the-shelf inverter is designed to this temperature standard and will not survive in that environment unless it is.
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