LarryJM wrote:
He is NOT installing this in the existing "LOOP" ckt you are talking about. What he is doing is basically plugging in another "sub-panel" to the existing pedestal and for that I'm not sure what a lot here are referencing to NEC, etc. even applies. AFAIK as long as you are plugging this in it becomes "temporary" just like your trailer is and I don't think burying the cord or using armored cable changes the temporary nature of his addition. The key word is "it's plugged in" and as such is by definition "TEMPORARY".
Larry
Temporary also cannot be permanently installed, and in theory should only be used for a limited period of time (which I think may even be spelled out in the code). It's not legal per code, for example, to run an extension cord somewhere and staple it in position in lieu of installing an outlet. I would think burying a wire in conduit would be considered permanent by most inspectors, who really have the final say in the end.
There are also temporary installations defined by the NEC for such cases as use during construction that have different rules than permanent installations. Junction boxes are not required, for example. This is different from temporarily running an extension cord to get power from your house to your hedge trimmer to neaten up the hedge at the end of the driveway, which isn't really addressed directly (it's not part of the building electric system at all).