I have an electrical line running through the joists of a basement storage room. It runs near an area where I’d like to put a couple of 2-gang outlets, but not immediately past. I was thinking about rerouting the line to go past where I want the outlets, and splicing them into the line.
Is it better to splice in a junction box and run a branch off the existing line to the two new outlets, or would splicing the outlets into the existing run be better? I’m starting to think the former would be better, since it lets me run whatever length of wires I need and I don’t have to worry about whatever’s downstream of the new outlets, but I figured I ask people more knowledgeable than I.
I tend to make splices in places that makes the best use of the wire and the least number of “junction only” boxes.
That said, there is no real difference as long as the wires are well anchored, the boxes are accessible. and the splices or devices are properly terminated. In your situation, one thing I might do is, since I need a box there anyway, actually have an extra outlet in the ceiling (but I am 6’5”). Use the same or larger wire size and there is no difference.
Can you cut the wire in the middle so there is enough length to reach each outlet location desired and then run a new wire between the outlets to connect it all together? Thats how I would do it if this was possible since cutting wire and installing one junction box to splice off it is nearly always impossible without enough wire length to make proper connections inside of a jbox.