What basic principle is addressed by the NEC in Article 210 regarding receptacle spacing?

The National Electrical Code (NEC) addresses the spacing of receptacles in Article 210 primarily to ensure that electrical outlets are conveniently located for maximum accessibility and to minimize the need for extension cords, which can pose safety hazards. According to NEC guidelines, receptacles must be installed so that no point along the floor line within habitable rooms is more than 6 feet away from a receptacle outlet. This specific requirement helps to ensure that electrical devices can be plugged in without the risk of stretching cords across floors or having to rely on unsafe practices.

This principle also reflects considerations for user comfort and functionality in residential settings. By ensuring receptacles are relatively close together, the NEC facilitates immediate access to power where it is most likely needed, thereby enhancing safety and convenience in everyday use.

The other options do not represent NEC requirements. For example, spacing regulations are not solely based on fixed distances of 10 feet apart or arrangements that allow receptacles to be placed anywhere in a room, as both would be impractical and could lead to insufficient access to power. Additionally, the height of receptacles is typically addressed in other areas of the code and focusing solely on distance from the floor does not meet the primary concern of accessibility defined in Article 210.