A junction box has several holes with removable plugs in the sides and back. Choose holes conveniently located for the cables you are splicing and remove the plugs. Have a cable clamp for each one and loosen the screws to open the collar. Pull about 8 to 10 inches of cable through the clamp and tighten the collar around it so it’s firmly held but not pinching the plastic.
Short for ampere, a unit of measure for current or the volume of electricity running through a circuit. The amp rating for a device or cable determines the amount of current it can safely handle. Typical household circuits begin at 15 amps and go up to 50 or 60 amps.
Or if you are using a receptacle on an upper floor to serve a new ceiling fixture below, it would have to be run through the soleplate and possibly some flooring, and into the ceiling cavity below. A switch loop will also have to be run from a wall location in the room below, to the new ceiling fixture.
An outlet for tapping into an electrical circuit usually with an appliance plug. Duplex wall receptacles are the most common type, but larger appliance receptacles are also found in household electrical systems.