Hey all, not to get some shit started, but there's a reference book called the NEC (National Electrical Code), it's at your local library. Just start reading it, and most of these type questions will get answered. Start with section 210 on branch circuits, 225 outside branch circuits, then on to 240 over current, and then section 300 wiring methods. Take a glance at 310 to get an idea what size wire you should be using then section 400 for these temporary cords. After twenty years or so you'll know half of what you'll need for all these situations you're outlining. Get some local (in person help) but start educating yourself, put some time in otherwise you'll never know what you need and have to be reliant for online help that might/might not answer your questions correctly.
