NEC Commercial Electrical Practice Test

At what horizontal distance must required receptacles be located in dwelling units?

1. 4 feet

2. 6 feet

3. 8 feet

4. 10 feet

The correct answer is: 6 feet

In dwelling units, the National Electrical Code (NEC) specifies that required receptacles must be located at intervals no greater than 6 feet along the wall space measured horizontally. This is to ensure that there are sufficient receptacles available for general use throughout the dwelling, reducing the reliance on extension cords and promoting safety. The 6-foot requirement applies particularly to wall spaces that are 2 feet or more in length and is primarily focused on areas such as living rooms and bedrooms, where convenience is essential. This code provision serves to help prevent electrical hazards and support a practical electrical layout, ensuring that users can access power without excessive stretching of cords or causing the potential for tripping hazards. Consequently, understanding the importance of these requirements contributes to the overall safety and functionality of electrical installations in residential environments.