Hi everyone, I've just finished framing out an unfinished area of my basement for a workshop, and I'm now running several 12/2 romex circuits through the studs for the new electric service. (An electrician will be hooking up my wiring to a subpanel, and that panel to the main breaker box.) I'm planning four cicruits around the perimeter: - 220 V for dust collector - 220 V for table saw and jointer - 110 V for general use - A - 110 V for general use - B I wanted two 110V circuits around the entire room, with each connected to a duplex receptacal. To make the drywalling easier, I thought I would just put two duplex receptacles in a single quad-sized box. I purchased receptacles of different colors so I could see which circuit is which, and if I was running something that eats a lot of current on one of the circuits, I could use the other for something else. My question is: when I install two duplex receptacles next to eachother in the same quad box, the receptacle-attachment screws for the hot side of one circuit are really close (less than 1/2") to the screws on the neutral side of the other. Should I put some type of insulator between the two receptacles inside the box to keep them physically separated, or is this kind of thing done all the time? Thanks in advance for your help! - Jeff

How many plugs are you able to put on a 15 amp circuit? What about lights? Are there general guidelines anywhere for someone to look up?