Diagrams Of Light Boxes. Because the electrical code as of the 2011 nec update requires a neutral wire in most new switch boxes a 3 wire cable runs between the light and switch. The red and black are used for hot and the white neutral wire at the switch box allows for powering a timer remote control or other programmable switch.
Explanation of above picture. Launch edrawmax on your computer. Navigate to building plan eletrical and telecom plan.
Repairing electrical wiring a lot more than any other household project is about protection.
Navigate to building plan eletrical and telecom plan. Because the electrical code as of the 2011 nec update requires a neutral wire in most new switch boxes a 3 wire cable runs between the light and switch. Multi point radial lighting circuit using junction boxes. This repeats for each light in the circuit until we reach the last light.