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Old 10-04-2018, 05:06 PM   #43
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I'm sorry you don't like travelling with your wife. Having her drive separately makes no sense to me. And, electric cars get 47 mpg when you figure the generation of the charging electricity.
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Old 10-04-2018, 05:07 PM   #44
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I think you need to redo YOUR math.

What is 50 × 220 ? .........
to add to that. Where did the 25 come from?
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Old 10-04-2018, 05:17 PM   #45
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CORRECTION: (50a RV w/ 30a adapter is 3,600-watt max, (not the 6,000 originally stated) (WHAT I WAS TRYING TO SAY WAS) single HOT across two legs w/ #6 wire and 50-amp wire to a 50a plug would be 6,000-watts
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Old 10-04-2018, 05:24 PM   #46
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I'm pretty sure that the "cheater" wiring method you speak of would a violation of the NEC. Since few RVs are bringing electric vehicles along, I image that there is not a lot of demand for the service you're hoping to find. I also image that, upgrading to legally accomplish your goal would be quite expensive and therefore not likely to be embraced by campground owners. While I was in Rapid City, SD earlier this year, I noticed the Tesla had four electric charging stations in the Rushmore Mall (across from Red Lobster). I also remember a generic EV charging station at the Cracker Barrel in Crossville, TN (although both parking spaces were occupied by inconsiderate knuckleheads with regular, gas burning cars). You might do better searching for "electric vehicle charging stations"

My first thought was that you were trying to use a Camco cord that has 30A male AND 15A male plugs that simultaneously plug into the 30A and 15A outlets on a standard RV pedestal. When a pedestal is wired properly (as per NEC) the 15A outlet has a built in GFCI. That GFCI WILL trip when both the 30A and 15A males are plugged in thus defeating the original intent of getting 45A of service.
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Old 10-04-2018, 05:44 PM   #47
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I'm pretty sure that the "cheater" wiring method you speak of would a violation of the NEC. Since few RVs are bringing electric vehicles along, I image that there is not a lot of demand for the service you're hoping to find. I also image that, upgrading to legally accomplish your goal would be quite expensive and therefore not likely to be embraced by campground owners. While I was in Rapid City, SD earlier this year, I noticed the Tesla had four electric charging stations in the Rushmore Mall (across from Red Lobster). I also remember a generic EV charging station at the Cracker Barrel in Crossville, TN (although both parking spaces were occupied by inconsiderate knuckleheads with regular, gas burning cars). You might do better searching for "electric vehicle charging stations"

My first thought was that you were trying to use a Camco cord that has 30A male AND 15A male plugs that simultaneously plug into the 30A and 15A outlets on a standard RV pedestal. When a pedestal is wired properly (as per NEC) the 15A outlet has a built in GFCI. That GFCI WILL trip when both the 30A and 15A males are plugged in thus defeating the original intent of getting 45A of service.
Since few RVs are bringing electric vehicles along, I image that there is not a lot of demand for the service you're hoping to find.

The service he is hoping to find is standard 50 amp 240 volt service.
Most RV parks have many sites with that. Some have 50 amp 240 volt service in all sites.
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Old 10-04-2018, 06:02 PM   #48
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^^^^^^^^ Doesn't understand the problem.


Please explain why my suggestion would not work.
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Old 10-04-2018, 06:09 PM   #49
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Please explain why my suggestion would not work.
It would not provide two 50 Amp capable hot legs at 240 VAC.
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Old 10-04-2018, 06:47 PM   #50
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Build a box for yourself that you could use in emergency. Two 30 amp inlets and one 50 amp outlet for your cars charger.
I wonder how well a 30 amp 240 volt service would work charging a car designed to accept 50 amp 240 volt service ?

If your lucky enough to pick 2, 30 amp outlets not on the same leg, to actually get 240 volts, its still 20 amps short and may trip the breakers.
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Old 10-04-2018, 07:25 PM   #51
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Voltmeter
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Old 10-04-2018, 07:33 PM   #52
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Generator Backup plan

Check you Generator to see if it provides 220VAC for a Backup plan. I think the 8KW does not, but both the 10KW and 12KW will.

Missing 220VAC will not affect the amount of power to your Coach. You still get 50 Amp times 2.
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Old 10-04-2018, 07:39 PM   #53
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Check you Generator to see if it provides 220VAC for a Backup plan. I think the 8KW does not, but both the 10KW and 12KW will.

Missing 220VAC will not affect the amount of power to your Coach. You still get 50 Amp times 2.
He's not concerned about the coach and he likely has nothing bigger than a 5500 generator in his 23' Class C; more likely a 4K generator.
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Old 10-04-2018, 07:51 PM   #54
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It would not provide two 50 Amp capable hot legs at 240 VAC.


You’re right. It would instead provide two 30 amp hot legs. Again, my suggestion is to use this “in an emergency”. At least he would be able to power us car’s charger.
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Old 10-04-2018, 08:00 PM   #55
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I wonder how well a 30 amp 240 volt service would work charging a car designed to accept 50 amp 240 volt service ?

If your lucky enough to pick 2, 30 amp outlets not on the same leg, to actually get 240 volts, its still 20 amps short and may trip the breakers.


I may be wrong but aren’t amps “pulled” by the device rather than “pushed” to the device? I really doubt his car charger actually uses 2 x 50 or 100 amps AC.
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Old 10-04-2018, 08:17 PM   #56
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I may be wrong but aren’t amps “pulled” by the device rather than “pushed” to the device? I really doubt his car charger actually uses 2 x 50 or 100 amps AC.
You are correct. Amps are drawn for the lake of a better term. The charger uses 240 volts. Your RV uses 120. The charger cannot exceed 50 amps. The car charger uses 2- 50 amp on separate phases. It will draw close to 50 amps.
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