CHEAPEST exterior car charger circuit?

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Why would the charger have a 14-50 if it didn't need the neutral? 6-50 devices are already commonplace because of welding machines. Then again, lots of those are wired with smaller wire for dedicated welding circuits and they might be worried about the continuous loads of chargers on existing circuits.
 
Little Bill said:
I would use 2-2-4-6 mobile home wire (USE-2). It is cheap and you use it with or without conduit. You could feed it with a 90A breaker to a new sub in the garage since you have to run a new feeder anyway.
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Type USE cable can not be used within a structure unless it is also dual listed as RHW. Even if dual listed only the portion that is buried can be installed without a raceway.
 
MAC702 said:
Why would the charger have a 14-50 if it didn't need the neutral? 6-50 devices are already commonplace because of welding machines..
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In my area, Home Centers stock 240v 14-50 appliance cord & plugs, while 6-50's are special order only, for double the cost.
 
curt swartz said:
Type USE cable can not be used within a structure unless it is also dual listed as RHW. Even if dual listed only the portion that is buried can be installed without a raceway.
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True, that's why I said "USE-2"
I assumed he would use a raceway/sleeve to get down to the trench on both ends should he decide to bury it w/o a raceway.
 
Can USE be run through a nipple through the garage wall and into the back of a panel without being considered inside the garage?

Running the feeder underground has not been discussed, but if chosen, will require the customer to agree to additional costs.
 
Little Bill said:
True, that's why I said "USE-2"
I assumed he would use a raceway/sleeve to get down to the trench on both ends should he decide to bury it w/o a raceway.
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The -2 does not change the locations it is allowed, it only means it has a 90C insulation vs 75C
 
curt swartz said:
The -2 does not change the locations it is allowed, it only means it has a 90C insulation vs 75C
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I was under the impression that the "-2" meant dual rated. I just looked at the cable and it also has "RHW-2". I do know for sure the cable I use is dual rated and can be run indoors to a panel/disconnect.
 
Little Bill said:
I was under the impression that the "-2" meant dual rated. I just looked at the cable and it also has "RHW-2". I do know for sure the cable I use is dual rated and can be run indoors to a panel/disconnect.
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The -2 suffix means the wet temperature rating is the same as the dry rating.
 
Little Bill said:
I was under the impression that the "-2" meant dual rated. I just looked at the cable and it also has "RHW-2". I do know for sure the cable I use is dual rated and can be run indoors to a panel/disconnect.
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Yes, the RHW-2 (or even just RHW) is the second rating which allows it to be used indoors, based on the allowed uses of RHW.
 
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