If the inverter is shutting down after a few minutes for WHATEVER reason it sounds like it is low voltage at the inverter. The first thing you should do is turn on what you are going to use off of the inverter (TV/DVD)and check the voltage at the inverter 12v input terminals. Leave what else is normally on in the coach while you check it.It is possible other things are pulling the voltage down besides the inverter. The inverter spec sheet should tell you what the minimum voltage it needs to operate properly.That is a start.
FuzzyKnight wrote: OnaQuest
You my friend a kinda right BUT they do not have 5 different wires going up to the lights!!!! They have 1 and they pick off a power wire to each light. As you pick off each wire you will drop voltage to the next light But current will stay the same hence the viewable voltage will drop.
You, my friend, are dead WRONG. The voltage at any point along that wire is the same. Each light is seeing exactly the same voltage across it's filament as the next light in line. The total current will INCREASE (not stay the same) with additional lights.
FuzzyKnight wrote: OnaQuest
You my friend a kinda right BUT they do not have 5 different wires going up to the lights!!!! They have 1 and they pick off a power wire to each light. As you pick off each wire you will drop voltage to the next light But current will stay the same hence the viewable voltage will drop.
You, my friend, are dead WRONG. The voltage at any point along that wire is the same. Each light is seeing exactly the same voltage across it's filament as the next light in line. The total current will INCREASE (not stay the same) with additional lights.
You obviously DO NOT understand basic Ohm's Law.
You are ignoring the subsequent loss, the farther you get down the wire. Longer wire = greater resistance. Greater resistance = more voltage drop. So the voltage will be slightly less progressively down the line. Total current will be measured at power source, but will be progressively less after each bulb. I don't believe you are picturing the parallel circuit accurately. You are not including the resistance of the wire, which is increasing the farther you get from the source. It might be a parallel circuit as far as the bulbs are concerned, but the resistance of the wire is in series with the load/bulbs.
Dave
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FuzzyKnight wrote: OnaQuest
You my friend a kinda right BUT they do not have 5 different wires going up to the lights!!!! They have 1 and they pick off a power wire to each light. As you pick off each wire you will drop voltage to the next light But current will stay the same hence the viewable voltage will drop.
You, my friend, are dead WRONG. The voltage at any point along that wire is the same. Each light is seeing exactly the same voltage across it's filament as the next light in line. The total current will INCREASE (not stay the same) with additional lights.
You obviously DO NOT understand basic Ohm's Law.
You are ignoring the subsequent loss, the farther you get down the wire. Longer wire = greater resistance. Greater resistance = more voltage drop. So the voltage will be slightly less progressively down the line. Total current will be measured at power source, but will be progressively less after each bulb. I don't believe you are picturing the parallel circuit accurately. You are not including the resistance of the wire, which is increasing the farther you get from the source. It might be a parallel circuit as far as the bulbs are concerned, but the resistance of the wire is in series with the load/bulbs.
Geeeze! How ridiculous do you want to get?
Show me the meter and technique that YOU use to measure this with on your own clearance lights. Maybe you can even see the difference in brightness of each succeeding bulb in line. Get real.......
FuzzyKnight wrote: OnaQuest
You my friend a kinda right BUT they do not have 5 different wires going up to the lights!!!! They have 1 and they pick off a power wire to each light. As you pick off each wire you will drop voltage to the next light But current will stay the same hence the viewable voltage will drop.
You, my friend, are dead WRONG. The voltage at any point along that wire is the same. Each light is seeing exactly the same voltage across it's filament as the next light in line. The total current will INCREASE (not stay the same) with additional lights.
You obviously DO NOT understand basic Ohm's Law.
You are ignoring the subsequent loss, the farther you get down the wire. Longer wire = greater resistance. Greater resistance = more voltage drop. So the voltage will be slightly less progressively down the line. Total current will be measured at power source, but will be progressively less after each bulb. I don't believe you are picturing the parallel circuit accurately. You are not including the resistance of the wire, which is increasing the farther you get from the source. It might be a parallel circuit as far as the bulbs are concerned, but the resistance of the wire is in series with the load/bulbs.
Geeeze! How ridiculous do you want to get?
Show me the meter and technique that YOU use to measure this with on your own clearance lights. Maybe you can even see the difference in brightness of each succeeding bulb in line. Get real.......
So you do the math. If one figures 10 feet of wire before the first bulb (5 ft on each leg) and 16 marker lights, on 18 gauge wire, the drop measure at the first light will be .364 volts, assuming 18 gauge copper at 70 degrees F. The second light will be a little less drop and so on. Each light pulls around .35 amps. Figuring 16 bulbs is 5.6 amps across the first section of wire. The loss is cumulative, although slightly less as you progress down the line. If you go to the trouble of calculating the loss at each section of wire, you can see it could easily be a measurable loss as you progress down the line. ( the last light would have ~.02 volt drop measured at the bulb, compared to the previous bulb)
BTW: Its not worth measuring my clearance lights as I went to LEDs.
1990 GEORGIE BOY 28' 454 4BBL, TURBO 400 TRANS, Thorley Headers B&M trans cooler. Auto meter hooked to output of trans. Flowmaster mufflers recurved distributor Still Keepin on Truckin((((Was 7.5mpg Now 8.75mpg ))))
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Maybe you can even see the difference in brightness of each succeeding bulb in line.
Get real.......
